{
  "id": "/fuzhou/festivals/1989",
  "place": {
    "id": "1810821",
    "slug": "fuzhou",
    "name": "Fuzhou",
    "region": "Fujian, China",
    "country": "CN",
    "lat": 26.06139,
    "lon": 119.30611,
    "elevation_m": 14,
    "tz": "Asia/Shanghai"
  },
  "year": 1989,
  "tradition": "smarta",
  "method": "pac-rp@2026.1",
  "ruleset": "2026.3-draft",
  "rulings": [
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-01-04",
      "festival": "ekadashi",
      "name": "Saphalā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-04",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 157,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-01-03T06:00:47+08:00",
          "utc": "1989-01-02T22:00:47Z",
          "ms": 599781646907.966
        },
        "end": {
          "local": "1989-01-04T06:53:40+08:00",
          "utc": "1989-01-03T22:53:40Z",
          "ms": 599871220263.1681
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-01-03T06:00:47+08:00",
          "utc": "1989-01-02T22:00:47Z",
          "ms": 599781646907.966
        },
        "end": {
          "local": "1989-01-04T06:53:40+08:00",
          "utc": "1989-01-03T22:53:40Z",
          "ms": 599871220263.1681
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-01-03",
          "window": {
            "start": {
              "local": "1989-01-03T06:50:49+08:00",
              "utc": "1989-01-02T22:50:49Z",
              "ms": 599784649275.7561
            },
            "end": {
              "local": "1989-01-03T06:50:49+08:00",
              "utc": "1989-01-02T22:50:49Z",
              "ms": 599784649275.7561
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-01-04",
          "window": {
            "start": {
              "local": "1989-01-04T06:51:03+08:00",
              "utc": "1989-01-03T22:51:03Z",
              "ms": 599871063083.2925
            },
            "end": {
              "local": "1989-01-04T06:51:03+08:00",
              "utc": "1989-01-03T22:51:03Z",
              "ms": 599871063083.2925
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:01 on Tue 3 Jan to 06:54 on Wed 4 Jan.",
          "fact": "1989-01-02T22:00:47Z → 1989-01-03T22:53:40Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:51 on the 3rd and 06:51 on the 4th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Both sunrises qualify. Paraviddhā: the second is taken.",
          "fact": "priority: paraviddha → paraviddha · margin 157 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Saphalā Ekādaśī, Fuzhou, 1989: Wednesday 4 January.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-03",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-04",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Saphalā Ekādaśī 1989 falls on Wednesday 4 January. Ekādaśī runs from 06:01 on Tue 3 Jan to 06:54 on Wed 4 Jan and is current at sunrise that day. It is 2 min 37 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-01-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-01-05",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37460,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-01-05T07:00:44+08:00",
          "utc": "1989-01-04T23:00:44Z",
          "ms": 599958043921.6869
        },
        "end": {
          "local": "1989-01-06T06:23:59+08:00",
          "utc": "1989-01-05T22:23:59Z",
          "ms": 600042239442.9762
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-01-05T07:00:44+08:00",
          "utc": "1989-01-04T23:00:44Z",
          "ms": 599958043921.6869
        },
        "end": {
          "local": "1989-01-06T06:23:59+08:00",
          "utc": "1989-01-05T22:23:59Z",
          "ms": 600042239442.9762
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-01-05",
          "window": {
            "start": {
              "local": "1989-01-05T17:25:04+08:00",
              "utc": "1989-01-05T09:25:04Z",
              "ms": 599995504258.0249
            },
            "end": {
              "local": "1989-01-05T19:12:35+08:00",
              "utc": "1989-01-05T11:12:35Z",
              "ms": 600001955217.0809
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        },
        {
          "local_date": "1989-01-06",
          "window": {
            "start": {
              "local": "1989-01-06T17:25:47+08:00",
              "utc": "1989-01-06T09:25:47Z",
              "ms": 600081947176.7212
            },
            "end": {
              "local": "1989-01-06T19:13:14+08:00",
              "utc": "1989-01-06T11:13:14Z",
              "ms": 600088393683.0049
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 07:01 on Thu 5 Jan to 06:24 on Fri 6 Jan.",
          "fact": "1989-01-04T23:00:44Z → 1989-01-05T22:23:59Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:25–19:13 on the 5th, 17:26–19:13 on the 6th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 5th and 0 of 107 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 37460 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Thursday 5 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Thursday 5 January. Trayodaśī runs from 07:01 on Thu 5 Jan to 06:24 on Fri 6 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-01-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-01-06",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16562,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-01-06T06:23:59+08:00",
          "utc": "1989-01-05T22:23:59Z",
          "ms": 600042239442.9762
        },
        "end": {
          "local": "1989-01-07T05:08:44+08:00",
          "utc": "1989-01-06T21:08:44Z",
          "ms": 600124123770.1703
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-01-06T06:23:59+08:00",
          "utc": "1989-01-05T22:23:59Z",
          "ms": 600042239442.9762
        },
        "end": {
          "local": "1989-01-07T05:08:44+08:00",
          "utc": "1989-01-06T21:08:44Z",
          "ms": 600124123770.1703
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-01-05",
          "window": {
            "start": {
              "local": "1989-01-05T23:44:15+08:00",
              "utc": "1989-01-05T15:44:15Z",
              "ms": 600018255354.4849
            },
            "end": {
              "local": "1989-01-06T00:32:15+08:00",
              "utc": "1989-01-05T16:32:15Z",
              "ms": 600021135354.4849
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-01-06",
          "window": {
            "start": {
              "local": "1989-01-06T23:44:42+08:00",
              "utc": "1989-01-06T15:44:42Z",
              "ms": 600104681575.2852
            },
            "end": {
              "local": "1989-01-07T00:32:42+08:00",
              "utc": "1989-01-06T16:32:42Z",
              "ms": 600107561575.2852
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 06:24 on Fri 6 Jan to 05:09 on Sat 7 Jan.",
          "fact": "1989-01-05T22:23:59Z → 1989-01-06T21:08:44Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:44–00:32 on the 5th, 23:45–00:33 on the 6th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 16562 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Friday 6 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Friday 6 January. Caturdaśī runs from 06:24 on Fri 6 Jan to 05:09 on Sat 7 Jan and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-01-06",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-01-11",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18596,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-01-10T20:16:40+08:00",
          "utc": "1989-01-10T12:16:40Z",
          "ms": 600437799900.4818
        },
        "end": {
          "local": "1989-01-11T17:44:40+08:00",
          "utc": "1989-01-11T09:44:40Z",
          "ms": 600515080423.2048
        },
        "month": {
          "amanta": 9,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-01-10T20:16:40+08:00",
          "utc": "1989-01-10T12:16:40Z",
          "ms": 600437799900.4818
        },
        "end": {
          "local": "1989-01-11T17:44:40+08:00",
          "utc": "1989-01-11T09:44:40Z",
          "ms": 600515080423.2048
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-01-10",
          "window": {
            "start": {
              "local": "1989-01-10T11:46:20+08:00",
              "utc": "1989-01-10T03:46:20Z",
              "ms": 600407179683.2743
            },
            "end": {
              "local": "1989-01-10T12:34:20+08:00",
              "utc": "1989-01-10T04:34:20Z",
              "ms": 600410059683.2743
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-01-11",
          "window": {
            "start": {
              "local": "1989-01-11T11:46:44+08:00",
              "utc": "1989-01-11T03:46:44Z",
              "ms": 600493604018.8887
            },
            "end": {
              "local": "1989-01-11T12:34:44+08:00",
              "utc": "1989-01-11T04:34:44Z",
              "ms": 600496484018.8887
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:17 on Tue 10 Jan to 17:45 on Wed 11 Jan.",
          "fact": "1989-01-10T12:16:40Z → 1989-01-11T09:44:40Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 10th, 11:47–12:35 on the 11th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 18596 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Wednesday 11 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Wednesday 11 January. Caturthī runs from 20:17 on Tue 10 Jan to 17:45 on Wed 11 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-01-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/bhogi",
      "festival": "bhogi",
      "name": "Bhogi",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 42426,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        },
        "end": {
          "local": "1989-02-12T18:45:43+08:00",
          "utc": "1989-02-12T10:45:43Z",
          "ms": 603283542849.565
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        },
        "end": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1989-01-14",
          "window": {
            "start": {
              "local": "1989-01-13T17:31:00+08:00",
              "utc": "1989-01-13T09:31:00Z",
              "ms": 600687059830.927
            },
            "end": {
              "local": "1989-01-14T17:31:46+08:00",
              "utc": "1989-01-14T09:31:46Z",
              "ms": 600773505708.0205
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1989-01-15",
          "window": {
            "start": {
              "local": "1989-01-14T17:31:46+08:00",
              "utc": "1989-01-14T09:31:46Z",
              "ms": 600773505708.0205
            },
            "end": {
              "local": "1989-01-15T17:32:32+08:00",
              "utc": "1989-01-15T09:32:32Z",
              "ms": 600859951765.8966
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "1989-01-14",
        "days": -1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 05:45 on Sat 14 Jan.",
          "fact": "1989-01-13T21:44:39Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:32, and the day of the 15th ends at 17:33.",
          "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunset → only-day · margin 42426 s"
        },
        {
          "step": "counted",
          "text": "Bhogi is kept the day before Pongal: Saturday 14 January is the day taken above.",
          "fact": "follows: pongal − 1 d"
        },
        {
          "step": "ruling",
          "text": "Bhogi, Fuzhou, 1989: Friday 13 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "bhogi",
        "follows": {
          "festival": "pongal",
          "days": -1
        },
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        ],
        "rashi": "Makara",
        "day_from": "sunset"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-13",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "1989-01-13",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "1989-01-12",
          "statement": "Counted from sunrise (the Orissa rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight."
          }
        }
      ],
      "quote": "In Fuzhou, Bhogi 1989 falls on Friday 13 January. It is kept the day before Pongal, which falls on Saturday 14 January. The Sun enters Makara at 05:45 on Sat 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 12 January.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/bhogi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pongal",
      "festival": "pongal",
      "name": "Pongal",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 42426,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        },
        "end": {
          "local": "1989-02-12T18:45:43+08:00",
          "utc": "1989-02-12T10:45:43Z",
          "ms": 603283542849.565
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        },
        "end": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1989-01-14",
          "window": {
            "start": {
              "local": "1989-01-13T17:31:00+08:00",
              "utc": "1989-01-13T09:31:00Z",
              "ms": 600687059830.927
            },
            "end": {
              "local": "1989-01-14T17:31:46+08:00",
              "utc": "1989-01-14T09:31:46Z",
              "ms": 600773505708.0205
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1989-01-15",
          "window": {
            "start": {
              "local": "1989-01-14T17:31:46+08:00",
              "utc": "1989-01-14T09:31:46Z",
              "ms": 600773505708.0205
            },
            "end": {
              "local": "1989-01-15T17:32:32+08:00",
              "utc": "1989-01-15T09:32:32Z",
              "ms": 600859951765.8966
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 05:45 on Sat 14 Jan.",
          "fact": "1989-01-13T21:44:39Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:32, and the day of the 15th ends at 17:33.",
          "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunset → only-day · margin 42426 s"
        },
        {
          "step": "ruling",
          "text": "Pongal, Fuzhou, 1989: Saturday 14 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "pongal",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        ],
        "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.",
        "rashi": "Makara",
        "day_from": "sunset"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "1989-01-14",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "1989-01-13",
          "statement": "Counted from sunrise (the Orissa rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight."
          }
        }
      ],
      "quote": "In Fuzhou, Pongal 1989 falls on Saturday 14 January. The Sun enters Makara at 05:45 on Sat 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 13 January.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pongal",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/makara-sankranti",
      "festival": "makara-sankranti",
      "name": "Makara Saṅkrānti",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20679,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        },
        "end": {
          "local": "1989-02-12T18:45:43+08:00",
          "utc": "1989-02-12T10:45:43Z",
          "ms": 603283542849.565
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        },
        "end": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        }
      },
      "kaala": "civil-day",
      "days": [
        {
          "local_date": "1989-01-13",
          "window": {
            "start": {
              "local": "1989-01-13T00:00:00+08:00",
              "utc": "1989-01-12T16:00:00Z",
              "ms": 600624000000
            },
            "end": {
              "local": "1989-01-14T00:00:00+08:00",
              "utc": "1989-01-13T16:00:00Z",
              "ms": 600710400000
            }
          },
          "covered_min": 0,
          "window_min": 1440,
          "qualifies": false
        },
        {
          "local_date": "1989-01-14",
          "window": {
            "start": {
              "local": "1989-01-14T00:00:00+08:00",
              "utc": "1989-01-13T16:00:00Z",
              "ms": 600710400000
            },
            "end": {
              "local": "1989-01-15T00:00:00+08:00",
              "utc": "1989-01-14T16:00:00Z",
              "ms": 600796800000
            }
          },
          "covered_min": 1,
          "window_min": 1440,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 05:45 on Sat 14 Jan.",
          "fact": "1989-01-13T21:44:39Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from midnight to midnight, on the clock of Fuzhou.",
          "fact": "civil-day: midnight-to-midnight · Asia/Shanghai"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from midnight → only-day · margin 20679 s"
        },
        {
          "step": "ruling",
          "text": "Makara Saṅkrānti, Fuzhou, 1989: Saturday 14 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "makara-sankranti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        ],
        "rashi": "Makara",
        "day_from": "midnight"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "1989-01-13",
          "statement": "Counted from sunrise (the Orissa rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunset-rule",
          "local_date": "1989-01-14",
          "statement": "Past sunset, the next day (the Tamil rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        }
      ],
      "quote": "In Fuzhou, Makara Saṅkrānti 1989 falls on Saturday 14 January. The Sun enters Makara at 05:45 on Sat 14 Jan, and the rule counts the day from midnight. Counted from sunrise, as in Orissa, it is 13 January.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/makara-sankranti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/mattu-pongal",
      "festival": "mattu-pongal",
      "name": "Mattu Pongal",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 42426,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        },
        "end": {
          "local": "1989-02-12T18:45:43+08:00",
          "utc": "1989-02-12T10:45:43Z",
          "ms": 603283542849.565
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        },
        "end": {
          "local": "1989-01-14T05:44:39+08:00",
          "utc": "1989-01-13T21:44:39Z",
          "ms": 600731079351.0668
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1989-01-14",
          "window": {
            "start": {
              "local": "1989-01-13T17:31:00+08:00",
              "utc": "1989-01-13T09:31:00Z",
              "ms": 600687059830.927
            },
            "end": {
              "local": "1989-01-14T17:31:46+08:00",
              "utc": "1989-01-14T09:31:46Z",
              "ms": 600773505708.0205
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1989-01-15",
          "window": {
            "start": {
              "local": "1989-01-14T17:31:46+08:00",
              "utc": "1989-01-14T09:31:46Z",
              "ms": 600773505708.0205
            },
            "end": {
              "local": "1989-01-15T17:32:32+08:00",
              "utc": "1989-01-15T09:32:32Z",
              "ms": 600859951765.8966
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "1989-01-14",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 05:45 on Sat 14 Jan.",
          "fact": "1989-01-13T21:44:39Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:32, and the day of the 15th ends at 17:33.",
          "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunset → only-day · margin 42426 s"
        },
        {
          "step": "counted",
          "text": "Mattu Pongal is kept the day after Pongal: Saturday 14 January is the day taken above.",
          "fact": "follows: pongal + 1 d"
        },
        {
          "step": "ruling",
          "text": "Mattu Pongal, Fuzhou, 1989: Sunday 15 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "mattu-pongal",
        "follows": {
          "festival": "pongal",
          "days": 1
        },
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        ],
        "rashi": "Makara",
        "day_from": "sunset"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "1989-01-15",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "1989-01-14",
          "statement": "Counted from sunrise (the Orissa rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight."
          }
        }
      ],
      "quote": "In Fuzhou, Mattu Pongal 1989 falls on Sunday 15 January. It is kept the day after Pongal, which falls on Saturday 14 January. The Sun enters Makara at 05:45 on Sat 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 14 January.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/mattu-pongal",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-01-17",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2186,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-01-17T06:15:23+08:00",
          "utc": "1989-01-16T22:15:23Z",
          "ms": 600992122604.8677
        },
        "end": {
          "local": "1989-01-18T05:18:51+08:00",
          "utc": "1989-01-17T21:18:51Z",
          "ms": 601075130949.1108
        },
        "month": {
          "amanta": 9,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-01-17T06:15:23+08:00",
          "utc": "1989-01-16T22:15:23Z",
          "ms": 600992122604.8677
        },
        "end": {
          "local": "1989-01-18T05:18:51+08:00",
          "utc": "1989-01-17T21:18:51Z",
          "ms": 601075130949.1108
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-01-17",
          "window": {
            "start": {
              "local": "1989-01-17T06:51:49+08:00",
              "utc": "1989-01-16T22:51:49Z",
              "ms": 600994308575.4078
            },
            "end": {
              "local": "1989-01-17T06:51:49+08:00",
              "utc": "1989-01-16T22:51:49Z",
              "ms": 600994308575.4078
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-01-18",
          "window": {
            "start": {
              "local": "1989-01-18T06:51:41+08:00",
              "utc": "1989-01-17T22:51:41Z",
              "ms": 601080701427.9014
            },
            "end": {
              "local": "1989-01-18T06:51:41+08:00",
              "utc": "1989-01-17T22:51:41Z",
              "ms": 601080701427.9014
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:15 on Tue 17 Jan to 05:19 on Wed 18 Jan.",
          "fact": "1989-01-16T22:15:23Z → 1989-01-17T21:18:51Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:52 on the 17th and 06:52 on the 18th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 17th and is not on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 2186 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Fuzhou, 1989: Tuesday 17 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Putradā Ekādaśī 1989 falls on Tuesday 17 January. Ekādaśī runs from 06:15 on Tue 17 Jan to 05:19 on Wed 18 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-01-17",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-01-19",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33071,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-01-19T04:43:52+08:00",
          "utc": "1989-01-18T20:43:52Z",
          "ms": 601159431824.398
        },
        "end": {
          "local": "1989-01-20T04:32:55+08:00",
          "utc": "1989-01-19T20:32:55Z",
          "ms": 601245174522.9978
        },
        "month": {
          "amanta": 9,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-01-19T04:43:52+08:00",
          "utc": "1989-01-18T20:43:52Z",
          "ms": 601159431824.398
        },
        "end": {
          "local": "1989-01-20T04:32:55+08:00",
          "utc": "1989-01-19T20:32:55Z",
          "ms": 601245174522.9978
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-01-18",
          "window": {
            "start": {
              "local": "1989-01-18T17:34:51+08:00",
              "utc": "1989-01-18T09:34:51Z",
              "ms": 601119290672.3562
            },
            "end": {
              "local": "1989-01-18T19:21:04+08:00",
              "utc": "1989-01-18T11:21:04Z",
              "ms": 601125664283.7681
            }
          },
          "covered_min": 0,
          "window_min": 106,
          "qualifies": false
        },
        {
          "local_date": "1989-01-19",
          "window": {
            "start": {
              "local": "1989-01-19T17:35:37+08:00",
              "utc": "1989-01-19T09:35:37Z",
              "ms": 601205737110.577
            },
            "end": {
              "local": "1989-01-19T19:21:43+08:00",
              "utc": "1989-01-19T11:21:43Z",
              "ms": 601212103172.2556
            }
          },
          "covered_min": 106,
          "window_min": 106,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:44 on Thu 19 Jan to 04:33 on Fri 20 Jan.",
          "fact": "1989-01-18T20:43:52Z → 1989-01-19T20:32:55Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:35–19:21 on the 18th, 17:36–19:22 on the 19th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 106 minutes on the 18th and 106 of 106 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 33071 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Thursday 19 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Thursday 19 January. Trayodaśī runs from 04:44 on Thu 19 Jan to 04:33 on Fri 20 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-01-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-01-25",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-01-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29725,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-01-25T10:46:25+08:00",
          "utc": "1989-01-25T02:46:25Z",
          "ms": 601699584620.9192
        },
        "end": {
          "local": "1989-01-26T13:18:39+08:00",
          "utc": "1989-01-26T05:18:39Z",
          "ms": 601795118760.6826
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-01-25T10:46:25+08:00",
          "utc": "1989-01-25T02:46:25Z",
          "ms": 601699584620.9192
        },
        "end": {
          "local": "1989-01-26T13:18:39+08:00",
          "utc": "1989-01-26T05:18:39Z",
          "ms": 601795118760.6826
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-01-25",
          "window": {
            "start": {
              "local": "1989-01-25T20:43:24+08:00",
              "utc": "1989-01-25T12:43:24Z",
              "ms": 601735403620.7521
            },
            "end": {
              "local": "1989-01-25T20:43:24+08:00",
              "utc": "1989-01-25T12:43:24Z",
              "ms": 601735403620.7521
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-01-26",
          "window": {
            "start": {
              "local": "1989-01-26T21:34:04+08:00",
              "utc": "1989-01-26T13:34:04Z",
              "ms": 601824843882.2102
            },
            "end": {
              "local": "1989-01-26T21:34:04+08:00",
              "utc": "1989-01-26T13:34:04Z",
              "ms": 601824843882.2102
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:46 on Wed 25 Jan to 13:19 on Thu 26 Jan.",
          "fact": "1989-01-25T02:46:25Z → 1989-01-26T05:18:39Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:43 on the 25th and 21:34 on the 26th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 25th and is not on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29725 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Wednesday 25 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-01-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-01-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Wednesday 25 January. Caturthī runs from 10:46 on Wed 25 Jan to 13:19 on Thu 26 Jan and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-01-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-02-02",
      "festival": "ekadashi",
      "name": "Ṣaṭtilā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22782,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-02-02T00:27:16+08:00",
          "utc": "1989-02-01T16:27:16Z",
          "ms": 602353635773.5939
        },
        "end": {
          "local": "1989-02-03T00:01:46+08:00",
          "utc": "1989-02-02T16:01:46Z",
          "ms": 602438505876.4187
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-02T00:27:16+08:00",
          "utc": "1989-02-01T16:27:16Z",
          "ms": 602353635773.5939
        },
        "end": {
          "local": "1989-02-03T00:01:46+08:00",
          "utc": "1989-02-02T16:01:46Z",
          "ms": 602438505876.4187
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-02-02",
          "window": {
            "start": {
              "local": "1989-02-02T06:46:58+08:00",
              "utc": "1989-02-01T22:46:58Z",
              "ms": 602376417688.1344
            },
            "end": {
              "local": "1989-02-02T06:46:58+08:00",
              "utc": "1989-02-01T22:46:58Z",
              "ms": 602376417688.1344
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-02-03",
          "window": {
            "start": {
              "local": "1989-02-03T06:46:28+08:00",
              "utc": "1989-02-02T22:46:28Z",
              "ms": 602462787637.3596
            },
            "end": {
              "local": "1989-02-03T06:46:28+08:00",
              "utc": "1989-02-02T22:46:28Z",
              "ms": 602462787637.3596
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:27 on Thu 2 Feb to 00:02 on Fri 3 Feb.",
          "fact": "1989-02-01T16:27:16Z → 1989-02-02T16:01:46Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:47 on the 2nd and 06:46 on the 3rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 2nd and is not on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 22782 s"
        },
        {
          "step": "ruling",
          "text": "Ṣaṭtilā Ekādaśī, Fuzhou, 1989: Thursday 2 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Ṣaṭtilā Ekādaśī 1989 falls on Thursday 2 February. Ekādaśī runs from 00:27 on Thu 2 Feb to 00:02 on Fri 3 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-02-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-02-04",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5089,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-02-03T22:49:38+08:00",
          "utc": "1989-02-03T14:49:38Z",
          "ms": 602520578031.9188
        },
        "end": {
          "local": "1989-02-04T20:56:16+08:00",
          "utc": "1989-02-04T12:56:16Z",
          "ms": 602600175614.5981
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-03T22:49:38+08:00",
          "utc": "1989-02-03T14:49:38Z",
          "ms": 602520578031.9188
        },
        "end": {
          "local": "1989-02-04T20:56:16+08:00",
          "utc": "1989-02-04T12:56:16Z",
          "ms": 602600175614.5981
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-02-03",
          "window": {
            "start": {
              "local": "1989-02-03T17:47:02+08:00",
              "utc": "1989-02-03T09:47:02Z",
              "ms": 602502422092.1906
            },
            "end": {
              "local": "1989-02-03T19:30:53+08:00",
              "utc": "1989-02-03T11:30:53Z",
              "ms": 602508653318.4265
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        },
        {
          "local_date": "1989-02-04",
          "window": {
            "start": {
              "local": "1989-02-04T17:47:46+08:00",
              "utc": "1989-02-04T09:47:46Z",
              "ms": 602588865990.1339
            },
            "end": {
              "local": "1989-02-04T19:31:27+08:00",
              "utc": "1989-02-04T11:31:27Z",
              "ms": 602595087012.8678
            }
          },
          "covered_min": 104,
          "window_min": 104,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 22:50 on Fri 3 Feb to 20:56 on Sat 4 Feb.",
          "fact": "1989-02-03T14:49:38Z → 1989-02-04T12:56:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:47–19:31 on the 3rd, 17:48–19:31 on the 4th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 104 minutes on the 3rd and 104 of 104 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5089 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Saturday 4 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Saturday 4 February. Trayodaśī runs from 22:50 on Fri 3 Feb to 20:56 on Sat 4 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-02-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-02-04",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10579,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-02-04T20:56:16+08:00",
          "utc": "1989-02-04T12:56:16Z",
          "ms": 602600175614.5981
        },
        "end": {
          "local": "1989-02-05T18:29:08+08:00",
          "utc": "1989-02-05T10:29:08Z",
          "ms": 602677748177.5894
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-04T20:56:16+08:00",
          "utc": "1989-02-04T12:56:16Z",
          "ms": 602600175614.5981
        },
        "end": {
          "local": "1989-02-05T18:29:08+08:00",
          "utc": "1989-02-05T10:29:08Z",
          "ms": 602677748177.5894
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-02-04",
          "window": {
            "start": {
              "local": "1989-02-04T23:52:35+08:00",
              "utc": "1989-02-04T15:52:35Z",
              "ms": 602610754825.386
            },
            "end": {
              "local": "1989-02-05T00:40:35+08:00",
              "utc": "1989-02-04T16:40:35Z",
              "ms": 602613634825.386
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-02-05",
          "window": {
            "start": {
              "local": "1989-02-05T23:52:40+08:00",
              "utc": "1989-02-05T15:52:40Z",
              "ms": 602697159662.3318
            },
            "end": {
              "local": "1989-02-06T00:40:40+08:00",
              "utc": "1989-02-05T16:40:40Z",
              "ms": 602700039662.3318
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 20:56 on Sat 4 Feb to 18:29 on Sun 5 Feb.",
          "fact": "1989-02-04T12:56:16Z → 1989-02-05T10:29:08Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:53–00:41 on the 4th, 23:53–00:41 on the 5th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 10579 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Saturday 4 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Saturday 4 February. Caturdaśī runs from 20:56 on Sat 4 Feb to 18:29 on Sun 5 Feb and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-02-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/yama-tarpana",
      "festival": "yama-tarpana",
      "name": "Yama Tarpaṇa",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29127,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-02-04T20:56:16+08:00",
          "utc": "1989-02-04T12:56:16Z",
          "ms": 602600175614.5981
        },
        "end": {
          "local": "1989-02-05T18:29:08+08:00",
          "utc": "1989-02-05T10:29:08Z",
          "ms": 602677748177.5894
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-04T20:56:16+08:00",
          "utc": "1989-02-04T12:56:16Z",
          "ms": 602600175614.5981
        },
        "end": {
          "local": "1989-02-05T18:29:08+08:00",
          "utc": "1989-02-05T10:29:08Z",
          "ms": 602677748177.5894
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1989-02-05",
          "window": {
            "start": {
              "local": "1989-02-05T05:01:43+08:00",
              "utc": "1989-02-04T21:01:43Z",
              "ms": 602629302637.9042
            },
            "end": {
              "local": "1989-02-05T06:45:24+08:00",
              "utc": "1989-02-04T22:45:24Z",
              "ms": 602635523660.6381
            }
          },
          "covered_min": 104,
          "window_min": 104,
          "qualifies": true
        },
        {
          "local_date": "1989-02-06",
          "window": {
            "start": {
              "local": "1989-02-06T05:01:19+08:00",
              "utc": "1989-02-05T21:01:19Z",
              "ms": 602715679074.5142
            },
            "end": {
              "local": "1989-02-06T06:44:50+08:00",
              "utc": "1989-02-05T22:44:50Z",
              "ms": 602721889769.8531
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 20:56 on Sat 4 Feb to 18:29 on Sun 5 Feb.",
          "fact": "1989-02-04T12:56:16Z → 1989-02-05T10:29:08Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:02–06:45 on the 5th, 05:01–06:45 on the 6th.",
          "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during aruṇodaya. It covers 104 of 104 minutes on the 5th and 0 of 104 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one dawn qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29127 s"
        },
        {
          "step": "ruling",
          "text": "Yama Tarpaṇa, Fuzhou, 1989: Sunday 5 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "yama-tarpana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)"
          }
        ],
        "kaala": "arunodaya",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Yama Tarpaṇa 1989 falls on Sunday 5 February. Caturdaśī runs from 20:56 on Sat 4 Feb to 18:29 on Sun 5 Feb and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/yama-tarpana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ganesha-jayanti",
      "festival": "ganesha-jayanti",
      "name": "Gaṇeśa Jayantī",
      "everyday": "Maghi Ganesh Jayanti",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21089,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-02-09T06:01:41+08:00",
          "utc": "1989-02-08T22:01:41Z",
          "ms": 602978501256.4978
        },
        "end": {
          "local": "1989-02-10T02:59:24+08:00",
          "utc": "1989-02-09T18:59:24Z",
          "ms": 603053963687.4061
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-09T06:01:41+08:00",
          "utc": "1989-02-08T22:01:41Z",
          "ms": 602978501256.4978
        },
        "end": {
          "local": "1989-02-10T02:59:24+08:00",
          "utc": "1989-02-09T18:59:24Z",
          "ms": 603053963687.4061
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-02-09",
          "window": {
            "start": {
              "local": "1989-02-09T11:53:10+08:00",
              "utc": "1989-02-09T03:53:10Z",
              "ms": 602999590409.03
            },
            "end": {
              "local": "1989-02-09T12:41:10+08:00",
              "utc": "1989-02-09T04:41:10Z",
              "ms": 603002470409.03
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-02-10",
          "window": {
            "start": {
              "local": "1989-02-10T11:53:12+08:00",
              "utc": "1989-02-10T03:53:12Z",
              "ms": 603085991847.7668
            },
            "end": {
              "local": "1989-02-10T12:41:12+08:00",
              "utc": "1989-02-10T04:41:12Z",
              "ms": 603088871847.7668
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:02 on Thu 9 Feb to 02:59 on Fri 10 Feb.",
          "fact": "1989-02-08T22:01:41Z → 1989-02-09T18:59:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 9th, 11:53–12:41 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 21089 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Jayantī, Fuzhou, 1989: Thursday 9 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ganesha-jayanti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1989 falls on Thursday 9 February. Caturthī runs from 06:02 on Thu 9 Feb to 02:59 on Fri 10 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ganesha-jayanti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/tila-chaturthi",
      "festival": "tila-chaturthi",
      "name": "Tila Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26715,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-02-09T06:01:41+08:00",
          "utc": "1989-02-08T22:01:41Z",
          "ms": 602978501256.4978
        },
        "end": {
          "local": "1989-02-10T02:59:24+08:00",
          "utc": "1989-02-09T18:59:24Z",
          "ms": 603053963687.4061
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-09T06:01:41+08:00",
          "utc": "1989-02-08T22:01:41Z",
          "ms": 602978501256.4978
        },
        "end": {
          "local": "1989-02-10T02:59:24+08:00",
          "utc": "1989-02-09T18:59:24Z",
          "ms": 603053963687.4061
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-02-08",
          "window": {
            "start": {
              "local": "1989-02-08T17:50:38+08:00",
              "utc": "1989-02-08T09:50:38Z",
              "ms": 602934638066.0048
            },
            "end": {
              "local": "1989-02-08T19:33:37+08:00",
              "utc": "1989-02-08T11:33:37Z",
              "ms": 602940817083.586
            }
          },
          "covered_min": 0,
          "window_min": 103,
          "qualifies": false
        },
        {
          "local_date": "1989-02-09",
          "window": {
            "start": {
              "local": "1989-02-09T17:51:20+08:00",
              "utc": "1989-02-09T09:51:20Z",
              "ms": 603021080120.1959
            },
            "end": {
              "local": "1989-02-09T19:34:08+08:00",
              "utc": "1989-02-09T11:34:08Z",
              "ms": 603027248362.2579
            }
          },
          "covered_min": 103,
          "window_min": 103,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:02 on Thu 9 Feb to 02:59 on Fri 10 Feb.",
          "fact": "1989-02-08T22:01:41Z → 1989-02-09T18:59:24Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:51–19:34 on the 8th, 17:51–19:34 on the 9th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during pradoṣa. It covers 0 of 103 minutes on the 8th and 103 of 103 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 26715 s"
        },
        {
          "step": "ruling",
          "text": "Tila Caturthī, Fuzhou, 1989: Thursday 9 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "tila-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Tila Caturthī 1989 falls on Thursday 9 February. Caturthī runs from 06:02 on Thu 9 Feb to 02:59 on Fri 10 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/tila-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shri-panchami",
      "festival": "shri-panchami",
      "name": "Śrī Pañcamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32028,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1989-02-10T02:59:24+08:00",
          "utc": "1989-02-09T18:59:24Z",
          "ms": 603053963687.4061
        },
        "end": {
          "local": "1989-02-11T00:14:32+08:00",
          "utc": "1989-02-10T16:14:32Z",
          "ms": 603130472327.1217
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-10T02:59:24+08:00",
          "utc": "1989-02-09T18:59:24Z",
          "ms": 603053963687.4061
        },
        "end": {
          "local": "1989-02-11T00:14:32+08:00",
          "utc": "1989-02-10T16:14:32Z",
          "ms": 603130472327.1217
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-02-10",
          "window": {
            "start": {
              "local": "1989-02-10T11:53:12+08:00",
              "utc": "1989-02-10T03:53:12Z",
              "ms": 603085991847.7668
            },
            "end": {
              "local": "1989-02-10T12:41:12+08:00",
              "utc": "1989-02-10T04:41:12Z",
              "ms": 603088871847.7668
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-02-11",
          "window": {
            "start": {
              "local": "1989-02-11T11:53:12+08:00",
              "utc": "1989-02-11T03:53:12Z",
              "ms": 603172392489.8318
            },
            "end": {
              "local": "1989-02-11T12:41:12+08:00",
              "utc": "1989-02-11T04:41:12Z",
              "ms": 603175272489.8318
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 02:59 on Fri 10 Feb to 00:15 on Sat 11 Feb.",
          "fact": "1989-02-09T18:59:24Z → 1989-02-10T16:14:32Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 10th, 11:53–12:41 on the 11th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 32028 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Pañcamī, Fuzhou, 1989: Friday 10 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shri-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śrī Pañcamī 1989 falls on Friday 10 February. Pañcamī runs from 02:59 on Fri 10 Feb to 00:15 on Sat 11 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shri-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vasanta-panchami",
      "festival": "vasanta-panchami",
      "name": "Vasanta Pañcamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32028,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1989-02-10T02:59:24+08:00",
          "utc": "1989-02-09T18:59:24Z",
          "ms": 603053963687.4061
        },
        "end": {
          "local": "1989-02-11T00:14:32+08:00",
          "utc": "1989-02-10T16:14:32Z",
          "ms": 603130472327.1217
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-10T02:59:24+08:00",
          "utc": "1989-02-09T18:59:24Z",
          "ms": 603053963687.4061
        },
        "end": {
          "local": "1989-02-11T00:14:32+08:00",
          "utc": "1989-02-10T16:14:32Z",
          "ms": 603130472327.1217
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-02-10",
          "window": {
            "start": {
              "local": "1989-02-10T11:53:12+08:00",
              "utc": "1989-02-10T03:53:12Z",
              "ms": 603085991847.7668
            },
            "end": {
              "local": "1989-02-10T12:41:12+08:00",
              "utc": "1989-02-10T04:41:12Z",
              "ms": 603088871847.7668
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-02-11",
          "window": {
            "start": {
              "local": "1989-02-11T11:53:12+08:00",
              "utc": "1989-02-11T03:53:12Z",
              "ms": 603172392489.8318
            },
            "end": {
              "local": "1989-02-11T12:41:12+08:00",
              "utc": "1989-02-11T04:41:12Z",
              "ms": 603175272489.8318
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 02:59 on Fri 10 Feb to 00:15 on Sat 11 Feb.",
          "fact": "1989-02-09T18:59:24Z → 1989-02-10T16:14:32Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 10th, 11:53–12:41 on the 11th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 32028 s"
        },
        {
          "step": "ruling",
          "text": "Vasanta Pañcamī, Fuzhou, 1989: Friday 10 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vasanta-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vasanta Pañcamī 1989 falls on Friday 10 February. Pañcamī runs from 02:59 on Fri 10 Feb to 00:15 on Sat 11 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vasanta-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ratha-saptami",
      "festival": "ratha-saptami",
      "name": "Ratha Saptamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25527,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1989-02-11T21:53:08+08:00",
          "utc": "1989-02-11T13:53:08Z",
          "ms": 603208387602.417
        },
        "end": {
          "local": "1989-02-12T19:59:48+08:00",
          "utc": "1989-02-12T11:59:48Z",
          "ms": 603287987872.848
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-11T21:53:08+08:00",
          "utc": "1989-02-11T13:53:08Z",
          "ms": 603208387602.417
        },
        "end": {
          "local": "1989-02-12T19:59:48+08:00",
          "utc": "1989-02-12T11:59:48Z",
          "ms": 603287987872.848
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1989-02-12",
          "window": {
            "start": {
              "local": "1989-02-12T04:58:35+08:00",
              "utc": "1989-02-11T20:58:35Z",
              "ms": 603233914535.2405
            },
            "end": {
              "local": "1989-02-12T06:41:01+08:00",
              "utc": "1989-02-11T22:41:01Z",
              "ms": 603240060929.196
            }
          },
          "covered_min": 102,
          "window_min": 102,
          "qualifies": true
        },
        {
          "local_date": "1989-02-13",
          "window": {
            "start": {
              "local": "1989-02-13T04:58:03+08:00",
              "utc": "1989-02-12T20:58:03Z",
              "ms": 603320283402.0878
            },
            "end": {
              "local": "1989-02-13T06:40:19+08:00",
              "utc": "1989-02-12T22:40:19Z",
              "ms": 603326418732.2554
            }
          },
          "covered_min": 0,
          "window_min": 102,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 21:53 on Sat 11 Feb to 20:00 on Sun 12 Feb.",
          "fact": "1989-02-11T13:53:08Z → 1989-02-12T11:59:48Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:59–06:41 on the 12th, 04:58–06:40 on the 13th.",
          "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during aruṇodaya. It covers 102 of 102 minutes on the 12th and 0 of 102 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one dawn qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 25527 s"
        },
        {
          "step": "ruling",
          "text": "Ratha Saptamī, Fuzhou, 1989: Sunday 12 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ratha-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]."
          }
        ],
        "kaala": "arunodaya",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Ratha Saptamī 1989 falls on Sunday 12 February. Saptamī runs from 21:53 on Sat 11 Feb to 20:00 on Sun 12 Feb and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ratha-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-02-16",
      "festival": "ekadashi",
      "name": "Jayā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39208,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-02-15T17:32:19+08:00",
          "utc": "1989-02-15T09:32:19Z",
          "ms": 603538339102.9635
        },
        "end": {
          "local": "1989-02-16T17:48:23+08:00",
          "utc": "1989-02-16T09:48:23Z",
          "ms": 603625702886.3583
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-15T17:32:19+08:00",
          "utc": "1989-02-15T09:32:19Z",
          "ms": 603538339102.9635
        },
        "end": {
          "local": "1989-02-16T17:48:23+08:00",
          "utc": "1989-02-16T09:48:23Z",
          "ms": 603625702886.3583
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-02-15",
          "window": {
            "start": {
              "local": "1989-02-15T06:38:51+08:00",
              "utc": "1989-02-14T22:38:51Z",
              "ms": 603499131078.7836
            },
            "end": {
              "local": "1989-02-15T06:38:51+08:00",
              "utc": "1989-02-14T22:38:51Z",
              "ms": 603499131078.7836
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-02-16",
          "window": {
            "start": {
              "local": "1989-02-16T06:38:06+08:00",
              "utc": "1989-02-15T22:38:06Z",
              "ms": 603585485676.0435
            },
            "end": {
              "local": "1989-02-16T06:38:06+08:00",
              "utc": "1989-02-15T22:38:06Z",
              "ms": 603585485676.0435
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 17:32 on Wed 15 Feb to 17:48 on Thu 16 Feb.",
          "fact": "1989-02-15T09:32:19Z → 1989-02-16T09:48:23Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:39 on the 15th and 06:38 on the 16th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 15th and is on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 39208 s"
        },
        {
          "step": "ruling",
          "text": "Jayā Ekādaśī, Fuzhou, 1989: Thursday 16 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Jayā Ekādaśī 1989 falls on Thursday 16 February. Ekādaśī runs from 17:32 on Wed 15 Feb to 17:48 on Thu 16 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-02-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/bhishma-dvadashi",
      "festival": "bhishma-dvadashi",
      "name": "Bhīṣma Dvādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18439,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1989-02-16T17:48:23+08:00",
          "utc": "1989-02-16T09:48:23Z",
          "ms": 603625702886.3583
        },
        "end": {
          "local": "1989-02-17T18:34:54+08:00",
          "utc": "1989-02-17T10:34:54Z",
          "ms": 603714894213.121
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-16T17:48:23+08:00",
          "utc": "1989-02-16T09:48:23Z",
          "ms": 603625702886.3583
        },
        "end": {
          "local": "1989-02-17T18:34:54+08:00",
          "utc": "1989-02-17T10:34:54Z",
          "ms": 603714894213.121
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-02-16",
          "window": {
            "start": {
              "local": "1989-02-16T11:53:04+08:00",
              "utc": "1989-02-16T03:53:04Z",
              "ms": 603604384069.8445
            },
            "end": {
              "local": "1989-02-16T12:41:04+08:00",
              "utc": "1989-02-16T04:41:04Z",
              "ms": 603607264069.8445
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-02-17",
          "window": {
            "start": {
              "local": "1989-02-17T11:53:00+08:00",
              "utc": "1989-02-17T03:53:00Z",
              "ms": 603690780145.5305
            },
            "end": {
              "local": "1989-02-17T12:41:00+08:00",
              "utc": "1989-02-17T04:41:00Z",
              "ms": 603693660145.5305
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 17:48 on Thu 16 Feb to 18:35 on Fri 17 Feb.",
          "fact": "1989-02-16T09:48:23Z → 1989-02-17T10:34:54Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 16th, 11:53–12:41 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 18439 s"
        },
        {
          "step": "ruling",
          "text": "Bhīṣma Dvādaśī, Fuzhou, 1989: Friday 17 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "bhishma-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Bhīṣma Dvādaśī 1989 falls on Friday 17 February. Dvādaśī runs from 17:48 on Thu 16 Feb to 18:35 on Fri 17 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/bhishma-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-02-18",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-18",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 668,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-02-17T18:34:54+08:00",
          "utc": "1989-02-17T10:34:54Z",
          "ms": 603714894213.121
        },
        "end": {
          "local": "1989-02-18T19:49:34+08:00",
          "utc": "1989-02-18T11:49:34Z",
          "ms": 603805774452.0055
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-17T18:34:54+08:00",
          "utc": "1989-02-17T10:34:54Z",
          "ms": 603714894213.121
        },
        "end": {
          "local": "1989-02-18T19:49:34+08:00",
          "utc": "1989-02-18T11:49:34Z",
          "ms": 603805774452.0055
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-02-17",
          "window": {
            "start": {
              "local": "1989-02-17T17:56:41+08:00",
              "utc": "1989-02-17T09:56:41Z",
              "ms": 603712601031.5844
            },
            "end": {
              "local": "1989-02-17T19:38:00+08:00",
              "utc": "1989-02-17T11:38:00Z",
              "ms": 603718679808.3374
            }
          },
          "covered_min": 63,
          "window_min": 101,
          "qualifies": true
        },
        {
          "local_date": "1989-02-18",
          "window": {
            "start": {
              "local": "1989-02-18T17:57:19+08:00",
              "utc": "1989-02-18T09:57:19Z",
              "ms": 603799039160.0375
            },
            "end": {
              "local": "1989-02-18T19:38:26+08:00",
              "utc": "1989-02-18T11:38:26Z",
              "ms": 603805106405.0643
            }
          },
          "covered_min": 101,
          "window_min": 101,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 18:35 on Fri 17 Feb to 19:50 on Sat 18 Feb.",
          "fact": "1989-02-17T10:34:54Z → 1989-02-18T11:49:34Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:57–19:38 on the 17th, 17:57–19:38 on the 18th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 63 of 101 minutes on the 17th and 101 of 101 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 668 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Saturday 18 February.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-18",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-17",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Saturday 18 February. Trayodaśī runs from 18:35 on Fri 17 Feb to 19:50 on Sat 18 Feb and covers all of pradoṣa that evening. It also reaches the previous evening for 63 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-02-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/maghi-purnima",
      "festival": "maghi-purnima",
      "name": "Māghī Pūrṇimā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31729,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-02-19T21:29:39+08:00",
          "utc": "1989-02-19T13:29:39Z",
          "ms": 603898178756.263
        },
        "end": {
          "local": "1989-02-20T23:31:52+08:00",
          "utc": "1989-02-20T15:31:52Z",
          "ms": 603991911833.2
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-19T21:29:39+08:00",
          "utc": "1989-02-19T13:29:39Z",
          "ms": 603898178756.263
        },
        "end": {
          "local": "1989-02-20T23:31:52+08:00",
          "utc": "1989-02-20T15:31:52Z",
          "ms": 603991911833.2
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-02-19",
          "window": {
            "start": {
              "local": "1989-02-19T11:52:50+08:00",
              "utc": "1989-02-19T03:52:50Z",
              "ms": 603863570175.6105
            },
            "end": {
              "local": "1989-02-19T12:40:50+08:00",
              "utc": "1989-02-19T04:40:50Z",
              "ms": 603866450175.6105
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-02-20",
          "window": {
            "start": {
              "local": "1989-02-20T11:52:44+08:00",
              "utc": "1989-02-20T03:52:44Z",
              "ms": 603949964163.561
            },
            "end": {
              "local": "1989-02-20T12:40:44+08:00",
              "utc": "1989-02-20T04:40:44Z",
              "ms": 603952844163.561
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 21:30 on Sun 19 Feb to 23:32 on Mon 20 Feb.",
          "fact": "1989-02-19T13:29:39Z → 1989-02-20T15:31:52Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 19th, 11:53–12:41 on the 20th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 31729 s"
        },
        {
          "step": "ruling",
          "text": "Māghī Pūrṇimā, Fuzhou, 1989: Monday 20 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "maghi-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Maghi purnima (paraviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Māghī Pūrṇimā 1989 falls on Monday 20 February. Pūrṇimā runs from 21:30 on Sun 19 Feb to 23:32 on Mon 20 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/maghi-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-02-24",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-02-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38783,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-02-24T07:04:46+08:00",
          "utc": "1989-02-23T23:04:46Z",
          "ms": 604278286146.6106
        },
        "end": {
          "local": "1989-02-25T09:41:47+08:00",
          "utc": "1989-02-25T01:41:47Z",
          "ms": 604374107488.1781
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-02-24T07:04:46+08:00",
          "utc": "1989-02-23T23:04:46Z",
          "ms": 604278286146.6106
        },
        "end": {
          "local": "1989-02-25T09:41:47+08:00",
          "utc": "1989-02-25T01:41:47Z",
          "ms": 604374107488.1781
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-02-23",
          "window": {
            "start": {
              "local": "1989-02-23T20:18:23+08:00",
              "utc": "1989-02-23T12:18:23Z",
              "ms": 604239502966.7551
            },
            "end": {
              "local": "1989-02-23T20:18:23+08:00",
              "utc": "1989-02-23T12:18:23Z",
              "ms": 604239502966.7551
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-02-24",
          "window": {
            "start": {
              "local": "1989-02-24T21:09:30+08:00",
              "utc": "1989-02-24T13:09:30Z",
              "ms": 604328969647.8282
            },
            "end": {
              "local": "1989-02-24T21:09:30+08:00",
              "utc": "1989-02-24T13:09:30Z",
              "ms": 604328969647.8282
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 07:05 on Fri 24 Feb to 09:42 on Sat 25 Feb.",
          "fact": "1989-02-23T23:04:46Z → 1989-02-25T01:41:47Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:18 on the 23rd and 21:09 on the 24th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 23rd and is on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 38783 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Friday 24 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-02-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-02-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Friday 24 February. Caturthī runs from 07:05 on Fri 24 Feb to 09:42 on Sat 25 Feb and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-02-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-03-04",
      "festival": "ekadashi",
      "name": "Vijayā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28082,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-03-03T15:43:52+08:00",
          "utc": "1989-03-03T07:43:52Z",
          "ms": 604914231880.4612
        },
        "end": {
          "local": "1989-03-04T14:12:02+08:00",
          "utc": "1989-03-04T06:12:02Z",
          "ms": 604995122413.091
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-03T15:43:52+08:00",
          "utc": "1989-03-03T07:43:52Z",
          "ms": 604914231880.4612
        },
        "end": {
          "local": "1989-03-04T14:12:02+08:00",
          "utc": "1989-03-04T06:12:02Z",
          "ms": 604995122413.091
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-03-03",
          "window": {
            "start": {
              "local": "1989-03-03T06:24:59+08:00",
              "utc": "1989-03-02T22:24:59Z",
              "ms": 604880698997.1134
            },
            "end": {
              "local": "1989-03-03T06:24:59+08:00",
              "utc": "1989-03-02T22:24:59Z",
              "ms": 604880698997.1134
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-03-04",
          "window": {
            "start": {
              "local": "1989-03-04T06:24:01+08:00",
              "utc": "1989-03-03T22:24:01Z",
              "ms": 604967040808.9266
            },
            "end": {
              "local": "1989-03-04T06:24:01+08:00",
              "utc": "1989-03-03T22:24:01Z",
              "ms": 604967040808.9266
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:44 on Fri 3 Mar to 14:12 on Sat 4 Mar.",
          "fact": "1989-03-03T07:43:52Z → 1989-03-04T06:12:02Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:25 on the 3rd and 06:24 on the 4th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 3rd and is on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 28082 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Ekādaśī, Fuzhou, 1989: Saturday 4 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vijayā Ekādaśī 1989 falls on Saturday 4 March. Ekādaśī runs from 15:44 on Fri 3 Mar to 14:12 on Sat 4 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-03-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-03-05",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22072,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-03-05T11:58:12+08:00",
          "utc": "1989-03-05T03:58:12Z",
          "ms": 605073491503.4233
        },
        "end": {
          "local": "1989-03-06T09:09:00+08:00",
          "utc": "1989-03-06T01:09:00Z",
          "ms": 605149739506.2816
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-05T11:58:12+08:00",
          "utc": "1989-03-05T03:58:12Z",
          "ms": 605073491503.4233
        },
        "end": {
          "local": "1989-03-06T09:09:00+08:00",
          "utc": "1989-03-06T01:09:00Z",
          "ms": 605149739506.2816
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-03-05",
          "window": {
            "start": {
              "local": "1989-03-05T18:06:03+08:00",
              "utc": "1989-03-05T10:06:03Z",
              "ms": 605095563048.5599
            },
            "end": {
              "local": "1989-03-05T19:44:11+08:00",
              "utc": "1989-03-05T11:44:11Z",
              "ms": 605101451012.9636
            }
          },
          "covered_min": 98,
          "window_min": 98,
          "qualifies": true
        },
        {
          "local_date": "1989-03-06",
          "window": {
            "start": {
              "local": "1989-03-06T18:06:35+08:00",
              "utc": "1989-03-06T10:06:35Z",
              "ms": 605181995146.8788
            },
            "end": {
              "local": "1989-03-06T19:44:31+08:00",
              "utc": "1989-03-06T11:44:31Z",
              "ms": 605187870859.8329
            }
          },
          "covered_min": 0,
          "window_min": 98,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:58 on Sun 5 Mar to 09:09 on Mon 6 Mar.",
          "fact": "1989-03-05T03:58:12Z → 1989-03-06T01:09:00Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:06–19:44 on the 5th, 18:07–19:45 on the 6th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 98 of 98 minutes on the 5th and 0 of 98 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 22072 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Sunday 5 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Sunday 5 March. Trayodaśī runs from 11:58 on Sun 5 Mar to 09:09 on Mon 6 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-03-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/maha-shivaratri",
      "festival": "maha-shivaratri",
      "name": "Mahāśivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18894,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-03-06T09:09:00+08:00",
          "utc": "1989-03-06T01:09:00Z",
          "ms": 605149739506.2816
        },
        "end": {
          "local": "1989-03-07T05:52:43+08:00",
          "utc": "1989-03-06T21:52:43Z",
          "ms": 605224362929.3698
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-06T09:09:00+08:00",
          "utc": "1989-03-06T01:09:00Z",
          "ms": 605149739506.2816
        },
        "end": {
          "local": "1989-03-07T05:52:43+08:00",
          "utc": "1989-03-06T21:52:43Z",
          "ms": 605224362929.3698
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-03-05",
          "window": {
            "start": {
              "local": "1989-03-05T23:50:03+08:00",
              "utc": "1989-03-05T15:50:03Z",
              "ms": 605116202915.074
            },
            "end": {
              "local": "1989-03-06T00:38:03+08:00",
              "utc": "1989-03-05T16:38:03Z",
              "ms": 605119082915.074
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-03-06",
          "window": {
            "start": {
              "local": "1989-03-06T23:49:49+08:00",
              "utc": "1989-03-06T15:49:49Z",
              "ms": 605202589070.4568
            },
            "end": {
              "local": "1989-03-07T00:37:49+08:00",
              "utc": "1989-03-06T16:37:49Z",
              "ms": 605205469070.4568
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 09:09 on Mon 6 Mar to 05:53 on Tue 7 Mar.",
          "fact": "1989-03-06T01:09:00Z → 1989-03-06T21:52:43Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:50–00:38 on the 5th, 23:50–00:38 on the 6th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: disputed → only-day · margin 18894 s"
        },
        {
          "step": "ruling",
          "text": "Mahāśivarātri, Fuzhou, 1989: Monday 6 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "maha-shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day"
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "disputed",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Mahāśivarātri 1989 falls on Monday 6 March. Caturdaśī runs from 09:09 on Mon 6 Mar to 05:53 on Tue 7 Mar and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/maha-shivaratri",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-03-11",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 826,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-03-10T15:29:21+08:00",
          "utc": "1989-03-10T07:29:21Z",
          "ms": 605518161098.2059
        },
        "end": {
          "local": "1989-03-11T12:23:19+08:00",
          "utc": "1989-03-11T04:23:19Z",
          "ms": 605593399343.6736
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-10T15:29:21+08:00",
          "utc": "1989-03-10T07:29:21Z",
          "ms": 605518161098.2059
        },
        "end": {
          "local": "1989-03-11T12:23:19+08:00",
          "utc": "1989-03-11T04:23:19Z",
          "ms": 605593399343.6736
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-03-10",
          "window": {
            "start": {
              "local": "1989-03-10T11:49:21+08:00",
              "utc": "1989-03-10T03:49:21Z",
              "ms": 605504960654.5713
            },
            "end": {
              "local": "1989-03-10T12:37:21+08:00",
              "utc": "1989-03-10T04:37:21Z",
              "ms": 605507840654.5713
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-03-11",
          "window": {
            "start": {
              "local": "1989-03-11T11:49:05+08:00",
              "utc": "1989-03-11T03:49:05Z",
              "ms": 605591345166.0919
            },
            "end": {
              "local": "1989-03-11T12:37:05+08:00",
              "utc": "1989-03-11T04:37:05Z",
              "ms": 605594225166.0919
            }
          },
          "covered_min": 34,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:29 on Fri 10 Mar to 12:23 on Sat 11 Mar.",
          "fact": "1989-03-10T07:29:21Z → 1989-03-11T04:23:19Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 10th, 11:49–12:37 on the 11th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 34 of 48 on the 11th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 826 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Saturday 11 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Saturday 11 March. Caturthī runs from 15:29 on Fri 10 Mar to 12:23 on Sat 11 Mar and covers 34 of 48 minutes of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-03-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-03-18",
      "festival": "ekadashi",
      "name": "Āmalakī Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3388,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-03-17T07:07:11+08:00",
          "utc": "1989-03-16T23:07:11Z",
          "ms": 606092830921.9645
        },
        "end": {
          "local": "1989-03-18T08:36:26+08:00",
          "utc": "1989-03-18T00:36:26Z",
          "ms": 606184586344.1598
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-17T07:07:11+08:00",
          "utc": "1989-03-16T23:07:11Z",
          "ms": 606092830921.9645
        },
        "end": {
          "local": "1989-03-18T08:36:26+08:00",
          "utc": "1989-03-18T00:36:26Z",
          "ms": 606184586344.1598
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-03-17",
          "window": {
            "start": {
              "local": "1989-03-17T06:10:43+08:00",
              "utc": "1989-03-16T22:10:43Z",
              "ms": 606089442586.7339
            },
            "end": {
              "local": "1989-03-17T06:10:43+08:00",
              "utc": "1989-03-16T22:10:43Z",
              "ms": 606089442586.7339
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-03-18",
          "window": {
            "start": {
              "local": "1989-03-18T06:09:39+08:00",
              "utc": "1989-03-17T22:09:39Z",
              "ms": 606175778872.6465
            },
            "end": {
              "local": "1989-03-18T06:09:39+08:00",
              "utc": "1989-03-17T22:09:39Z",
              "ms": 606175778872.6465
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 07:07 on Fri 17 Mar to 08:36 on Sat 18 Mar.",
          "fact": "1989-03-16T23:07:11Z → 1989-03-18T00:36:26Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:11 on the 17th and 06:10 on the 18th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 17th and is on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 3388 s"
        },
        {
          "step": "ruling",
          "text": "Āmalakī Ekādaśī, Fuzhou, 1989: Saturday 18 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Āmalakī Ekādaśī 1989 falls on Saturday 18 March. Ekādaśī runs from 07:07 on Fri 17 Mar to 08:36 on Sat 18 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-03-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-03-19",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19321,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-03-19T10:33:52+08:00",
          "utc": "1989-03-19T02:33:52Z",
          "ms": 606278031794.0194
        },
        "end": {
          "local": "1989-03-20T12:51:35+08:00",
          "utc": "1989-03-20T04:51:35Z",
          "ms": 606372694850.0902
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-19T10:33:52+08:00",
          "utc": "1989-03-19T02:33:52Z",
          "ms": 606278031794.0194
        },
        "end": {
          "local": "1989-03-20T12:51:35+08:00",
          "utc": "1989-03-20T04:51:35Z",
          "ms": 606372694850.0902
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-03-19",
          "window": {
            "start": {
              "local": "1989-03-19T18:13:07+08:00",
              "utc": "1989-03-19T10:13:07Z",
              "ms": 606305586944.0667
            },
            "end": {
              "local": "1989-03-19T19:48:22+08:00",
              "utc": "1989-03-19T11:48:22Z",
              "ms": 606311302137.8997
            }
          },
          "covered_min": 95,
          "window_min": 95,
          "qualifies": true
        },
        {
          "local_date": "1989-03-20",
          "window": {
            "start": {
              "local": "1989-03-20T18:13:36+08:00",
              "utc": "1989-03-20T10:13:36Z",
              "ms": 606392015518.741
            },
            "end": {
              "local": "1989-03-20T19:48:38+08:00",
              "utc": "1989-03-20T11:48:38Z",
              "ms": 606397718342.2395
            }
          },
          "covered_min": 0,
          "window_min": 95,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 10:34 on Sun 19 Mar to 12:52 on Mon 20 Mar.",
          "fact": "1989-03-19T02:33:52Z → 1989-03-20T04:51:35Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:13–19:48 on the 19th, 18:14–19:49 on the 20th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 95 of 95 minutes on the 19th and 0 of 95 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 19321 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Sunday 19 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Sunday 19 March. Trayodaśī runs from 10:34 on Sun 19 Mar to 12:52 on Mon 20 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-03-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/holika-dahana",
      "festival": "holika-dahana",
      "name": "Holikā Dahana",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-21",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 996,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-03-21T15:21:56+08:00",
          "utc": "1989-03-21T07:21:56Z",
          "ms": 606468115867.2611
        },
        "end": {
          "local": "1989-03-22T17:57:56+08:00",
          "utc": "1989-03-22T09:57:56Z",
          "ms": 606563876025.8197
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-21T15:21:56+08:00",
          "utc": "1989-03-21T07:21:56Z",
          "ms": 606468115867.2611
        },
        "end": {
          "local": "1989-03-22T17:57:56+08:00",
          "utc": "1989-03-22T09:57:56Z",
          "ms": 606563876025.8197
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1989-03-21",
          "window": {
            "start": {
              "local": "1989-03-21T15:48:32+08:00",
              "utc": "1989-03-21T07:48:32Z",
              "ms": 606469712495.8453
            },
            "end": {
              "local": "1989-03-21T18:14:04+08:00",
              "utc": "1989-03-21T10:14:04Z",
              "ms": 606478443946.0615
            }
          },
          "covered_min": 146,
          "window_min": 146,
          "qualifies": true
        },
        {
          "local_date": "1989-03-22",
          "window": {
            "start": {
              "local": "1989-03-22T15:48:42+08:00",
              "utc": "1989-03-22T07:48:42Z",
              "ms": 606556122272.1196
            },
            "end": {
              "local": "1989-03-22T18:14:32+08:00",
              "utc": "1989-03-22T10:14:32Z",
              "ms": 606564872243.3464
            }
          },
          "covered_min": 129,
          "window_min": 146,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 15:22 on Tue 21 Mar to 17:58 on Wed 22 Mar.",
          "fact": "1989-03-21T07:21:56Z → 1989-03-22T09:57:56Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:49–18:14 on the 21st, 15:49–18:15 on the 22nd.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 146 of 146 minutes on the 21st and 129 of 146 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 996 s"
        },
        {
          "step": "ruling",
          "text": "Holikā Dahana, Fuzhou, 1989: Tuesday 21 March.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "holika-dahana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana."
          }
        ],
        "not_evaluated": "The hour the row gives for the rite (\"it should be observed on second half of purnima at night\") is not tested: sāyāhna alone settles the day.",
        "kaala": "sayahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-21",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-21",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Holikā Dahana 1989 falls on Tuesday 21 March. Pūrṇimā runs from 15:22 on Tue 21 Mar to 17:58 on Wed 22 Mar and covers all of sāyāhna that late afternoon. It also reaches the next late afternoon for 129 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/holika-dahana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/holi",
      "festival": "holi",
      "name": "Holī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-22",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 996,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-03-21T15:21:56+08:00",
          "utc": "1989-03-21T07:21:56Z",
          "ms": 606468115867.2611
        },
        "end": {
          "local": "1989-03-22T17:57:56+08:00",
          "utc": "1989-03-22T09:57:56Z",
          "ms": 606563876025.8197
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-21T15:21:56+08:00",
          "utc": "1989-03-21T07:21:56Z",
          "ms": 606468115867.2611
        },
        "end": {
          "local": "1989-03-22T17:57:56+08:00",
          "utc": "1989-03-22T09:57:56Z",
          "ms": 606563876025.8197
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1989-03-21",
          "window": {
            "start": {
              "local": "1989-03-21T15:48:32+08:00",
              "utc": "1989-03-21T07:48:32Z",
              "ms": 606469712495.8453
            },
            "end": {
              "local": "1989-03-21T18:14:04+08:00",
              "utc": "1989-03-21T10:14:04Z",
              "ms": 606478443946.0615
            }
          },
          "covered_min": 146,
          "window_min": 146,
          "qualifies": true
        },
        {
          "local_date": "1989-03-22",
          "window": {
            "start": {
              "local": "1989-03-22T15:48:42+08:00",
              "utc": "1989-03-22T07:48:42Z",
              "ms": 606556122272.1196
            },
            "end": {
              "local": "1989-03-22T18:14:32+08:00",
              "utc": "1989-03-22T10:14:32Z",
              "ms": 606564872243.3464
            }
          },
          "covered_min": 129,
          "window_min": 146,
          "qualifies": true
        }
      ],
      "follows": {
        "festival": "holika-dahana",
        "name": "Holikā Dahana",
        "local_date": "1989-03-21",
        "days": 1
      },
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 15:22 on Tue 21 Mar to 17:58 on Wed 22 Mar.",
          "fact": "1989-03-21T07:21:56Z → 1989-03-22T09:57:56Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:49–18:14 on the 21st, 15:49–18:15 on the 22nd.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 146 of 146 minutes on the 21st and 129 of 146 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 996 s"
        },
        {
          "step": "counted",
          "text": "Holī is kept the day after Holikā Dahana: Tuesday 21 March is the day taken above.",
          "fact": "follows: holika-dahana + 1 d"
        },
        {
          "step": "ruling",
          "text": "Holī, Fuzhou, 1989: Wednesday 22 March.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "holi",
        "follows": {
          "festival": "holika-dahana",
          "days": 1
        },
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana."
          }
        ],
        "kaala": "sayahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-22",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-22",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Holī 1989 falls on Wednesday 22 March. It is kept the day after Holikā Dahana, which falls on Tuesday 21 March. Pūrṇimā runs from 15:22 on Tue 21 Mar to 17:58 on Wed 22 Mar and covers all of sāyāhna on the 21st. It also reaches the next late afternoon for 129 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/holi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vasantotsava",
      "festival": "vasantotsava",
      "name": "Vasantotsava",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34193,
      "anga": {
        "type": "tithi",
        "index": 15,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1989-03-22T17:57:56+08:00",
          "utc": "1989-03-22T09:57:56Z",
          "ms": 606563876025.8197
        },
        "end": {
          "local": "1989-03-23T20:33:20+08:00",
          "utc": "1989-03-23T12:33:20Z",
          "ms": 606659600328.6472
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-22T17:57:56+08:00",
          "utc": "1989-03-22T09:57:56Z",
          "ms": 606563876025.8197
        },
        "end": {
          "local": "1989-03-23T20:33:20+08:00",
          "utc": "1989-03-23T12:33:20Z",
          "ms": 606659600328.6472
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-03-23",
          "window": {
            "start": {
              "local": "1989-03-23T06:04:18+08:00",
              "utc": "1989-03-22T22:04:18Z",
              "ms": 606607458003.5385
            },
            "end": {
              "local": "1989-03-23T06:04:18+08:00",
              "utc": "1989-03-22T22:04:18Z",
              "ms": 606607458003.5385
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-03-24",
          "window": {
            "start": {
              "local": "1989-03-24T06:03:14+08:00",
              "utc": "1989-03-23T22:03:14Z",
              "ms": 606693793572.9702
            },
            "end": {
              "local": "1989-03-24T06:03:14+08:00",
              "utc": "1989-03-23T22:03:14Z",
              "ms": 606693793572.9702
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 17:58 on Wed 22 Mar to 20:33 on Thu 23 Mar.",
          "fact": "1989-03-22T09:57:56Z → 1989-03-23T12:33:20Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:04 on the 23rd and 06:03 on the 24th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be current at sunrise. It is on the 23rd and is not on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 34193 s"
        },
        {
          "step": "ruling",
          "text": "Vasantotsava, Fuzhou, 1989: Thursday 23 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vasantotsava",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)."
          }
        ],
        "kaala": "sunrise",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vasantotsava 1989 falls on Thursday 23 March. Pratipadā runs from 17:58 on Wed 22 Mar to 20:33 on Thu 23 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vasantotsava",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-03-26",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16119,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-03-26T01:19:14+08:00",
          "utc": "1989-03-25T17:19:14Z",
          "ms": 606849554165.3568
        },
        "end": {
          "local": "1989-03-27T03:17:59+08:00",
          "utc": "1989-03-26T19:17:59Z",
          "ms": 606943079013.862
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-26T01:19:14+08:00",
          "utc": "1989-03-25T17:19:14Z",
          "ms": 606849554165.3568
        },
        "end": {
          "local": "1989-03-27T03:17:59+08:00",
          "utc": "1989-03-26T19:17:59Z",
          "ms": 606943079013.862
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-03-25",
          "window": {
            "start": {
              "local": "1989-03-25T20:50:35+08:00",
              "utc": "1989-03-25T12:50:35Z",
              "ms": 606833435222.8363
            },
            "end": {
              "local": "1989-03-25T20:50:35+08:00",
              "utc": "1989-03-25T12:50:35Z",
              "ms": 606833435222.8363
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-03-26",
          "window": {
            "start": {
              "local": "1989-03-26T21:46:26+08:00",
              "utc": "1989-03-26T13:46:26Z",
              "ms": 606923186246.4601
            },
            "end": {
              "local": "1989-03-26T21:46:26+08:00",
              "utc": "1989-03-26T13:46:26Z",
              "ms": 606923186246.4601
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 01:19 on Sun 26 Mar to 03:18 on Mon 27 Mar.",
          "fact": "1989-03-25T17:19:14Z → 1989-03-26T19:17:59Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:51 on the 25th and 21:46 on the 26th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 25th and is on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 16119 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Sunday 26 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Sunday 26 March. Caturthī runs from 01:19 on Sun 26 Mar to 03:18 on Mon 27 Mar and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-03-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shitalashtami",
      "festival": "shitalashtami",
      "name": "Śītalāṣṭamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-03-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19234,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-03-30T06:22:58+08:00",
          "utc": "1989-03-29T22:22:58Z",
          "ms": 607213377520.9833
        },
        "end": {
          "local": "1989-03-31T06:09:23+08:00",
          "utc": "1989-03-30T22:09:23Z",
          "ms": 607298962858.1256
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-03-30T06:22:58+08:00",
          "utc": "1989-03-29T22:22:58Z",
          "ms": 607213377520.9833
        },
        "end": {
          "local": "1989-03-31T06:09:23+08:00",
          "utc": "1989-03-30T22:09:23Z",
          "ms": 607298962858.1256
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-03-30",
          "window": {
            "start": {
              "local": "1989-03-30T11:43:32+08:00",
              "utc": "1989-03-30T03:43:32Z",
              "ms": 607232611798.6306
            },
            "end": {
              "local": "1989-03-30T12:31:32+08:00",
              "utc": "1989-03-30T04:31:32Z",
              "ms": 607235491798.6306
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-03-31",
          "window": {
            "start": {
              "local": "1989-03-31T11:43:14+08:00",
              "utc": "1989-03-31T03:43:14Z",
              "ms": 607318993758.394
            },
            "end": {
              "local": "1989-03-31T12:31:14+08:00",
              "utc": "1989-03-31T04:31:14Z",
              "ms": 607321873758.394
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 06:23 on Thu 30 Mar to 06:09 on Fri 31 Mar.",
          "fact": "1989-03-29T22:22:58Z → 1989-03-30T22:09:23Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 30th, 11:43–12:31 on the 31st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 19234 s"
        },
        {
          "step": "ruling",
          "text": "Śītalāṣṭamī, Fuzhou, 1989: Thursday 30 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shitalashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Sitalastami, (purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-03-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-03-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śītalāṣṭamī 1989 falls on Thursday 30 March. Aṣṭamī runs from 06:23 on Thu 30 Mar to 06:09 on Fri 31 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shitalashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-04-02",
      "festival": "ekadashi",
      "name": "Pāpamocanī Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8389,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-04-02T03:33:48+08:00",
          "utc": "1989-04-01T19:33:48Z",
          "ms": 607462427514.9027
        },
        "end": {
          "local": "1989-04-03T01:14:55+08:00",
          "utc": "1989-04-02T17:14:55Z",
          "ms": 607540494646.6725
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-02T03:33:48+08:00",
          "utc": "1989-04-01T19:33:48Z",
          "ms": 607462427514.9027
        },
        "end": {
          "local": "1989-04-03T01:14:55+08:00",
          "utc": "1989-04-02T17:14:55Z",
          "ms": 607540494646.6725
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-04-02",
          "window": {
            "start": {
              "local": "1989-04-02T05:53:36+08:00",
              "utc": "1989-04-01T21:53:36Z",
              "ms": 607470816328.3278
            },
            "end": {
              "local": "1989-04-02T05:53:36+08:00",
              "utc": "1989-04-01T21:53:36Z",
              "ms": 607470816328.3278
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-04-03",
          "window": {
            "start": {
              "local": "1989-04-03T05:52:33+08:00",
              "utc": "1989-04-02T21:52:33Z",
              "ms": 607557152997.588
            },
            "end": {
              "local": "1989-04-03T05:52:33+08:00",
              "utc": "1989-04-02T21:52:33Z",
              "ms": 607557152997.588
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 03:34 on Sun 2 Apr to 01:15 on Mon 3 Apr.",
          "fact": "1989-04-01T19:33:48Z → 1989-04-02T17:14:55Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:54 on the 2nd and 05:53 on the 3rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 2nd and is not on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 8389 s"
        },
        {
          "step": "ruling",
          "text": "Pāpamocanī Ekādaśī, Fuzhou, 1989: Sunday 2 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Pāpamocanī Ekādaśī 1989 falls on Sunday 2 April. Ekādaśī runs from 03:34 on Sun 2 Apr to 01:15 on Mon 3 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-04-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-04-04",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2401,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-04-03T22:21:27+08:00",
          "utc": "1989-04-03T14:21:27Z",
          "ms": 607616487464.0614
        },
        "end": {
          "local": "1989-04-04T19:00:37+08:00",
          "utc": "1989-04-04T11:00:37Z",
          "ms": 607690836721.4064
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-03T22:21:27+08:00",
          "utc": "1989-04-03T14:21:27Z",
          "ms": 607616487464.0614
        },
        "end": {
          "local": "1989-04-04T19:00:37+08:00",
          "utc": "1989-04-04T11:00:37Z",
          "ms": 607690836721.4064
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-04-03",
          "window": {
            "start": {
              "local": "1989-04-03T18:20:08+08:00",
              "utc": "1989-04-03T10:20:08Z",
              "ms": 607602007664.7827
            },
            "end": {
              "local": "1989-04-03T19:52:19+08:00",
              "utc": "1989-04-03T11:52:19Z",
              "ms": 607607538632.9899
            }
          },
          "covered_min": 0,
          "window_min": 92,
          "qualifies": false
        },
        {
          "local_date": "1989-04-04",
          "window": {
            "start": {
              "local": "1989-04-04T18:20:36+08:00",
              "utc": "1989-04-04T10:20:36Z",
              "ms": 607688435698.5126
            },
            "end": {
              "local": "1989-04-04T19:52:35+08:00",
              "utc": "1989-04-04T11:52:35Z",
              "ms": 607693954557.1979
            }
          },
          "covered_min": 40,
          "window_min": 92,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 22:21 on Mon 3 Apr to 19:01 on Tue 4 Apr.",
          "fact": "1989-04-03T14:21:27Z → 1989-04-04T11:00:37Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:20–19:52 on the 3rd, 18:21–19:53 on the 4th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 92 minutes on the 3rd and 40 of 92 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2401 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Tuesday 4 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Tuesday 4 April. Trayodaśī runs from 22:21 on Mon 3 Apr to 19:01 on Tue 4 Apr and covers 40 of 92 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-04-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-04-04",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16855,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-04-04T19:00:37+08:00",
          "utc": "1989-04-04T11:00:37Z",
          "ms": 607690836721.4064
        },
        "end": {
          "local": "1989-04-05T15:21:05+08:00",
          "utc": "1989-04-05T07:21:05Z",
          "ms": 607764065218.1094
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-04T19:00:37+08:00",
          "utc": "1989-04-04T11:00:37Z",
          "ms": 607690836721.4064
        },
        "end": {
          "local": "1989-04-05T15:21:05+08:00",
          "utc": "1989-04-05T07:21:05Z",
          "ms": 607764065218.1094
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-04-04",
          "window": {
            "start": {
              "local": "1989-04-04T23:41:31+08:00",
              "utc": "1989-04-04T15:41:31Z",
              "ms": 607707691418.5825
            },
            "end": {
              "local": "1989-04-05T00:29:31+08:00",
              "utc": "1989-04-04T16:29:31Z",
              "ms": 607710571418.5825
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-04-05",
          "window": {
            "start": {
              "local": "1989-04-05T23:41:14+08:00",
              "utc": "1989-04-05T15:41:14Z",
              "ms": 607794074224.6748
            },
            "end": {
              "local": "1989-04-06T00:29:14+08:00",
              "utc": "1989-04-05T16:29:14Z",
              "ms": 607796954224.6748
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 19:01 on Tue 4 Apr to 15:21 on Wed 5 Apr.",
          "fact": "1989-04-04T11:00:37Z → 1989-04-05T07:21:05Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:42–00:30 on the 4th, 23:41–00:29 on the 5th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 16855 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Tuesday 4 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Tuesday 4 April. Caturdaśī runs from 19:01 on Tue 4 Apr to 15:21 on Wed 5 Apr and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-04-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/navaratra-arambha-caitra",
      "festival": "navaratra-arambha-caitra",
      "name": "Navarātrārambha (Caitra)",
      "everyday": "Chaitra Navratri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 526,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1989-04-06T11:32:42+08:00",
          "utc": "1989-04-06T03:32:42Z",
          "ms": 607836761941.0769
        },
        "end": {
          "local": "1989-04-07T07:45:58+08:00",
          "utc": "1989-04-06T23:45:58Z",
          "ms": 607909558051.7877
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-06T11:32:42+08:00",
          "utc": "1989-04-06T03:32:42Z",
          "ms": 607836761941.0769
        },
        "end": {
          "local": "1989-04-07T07:45:58+08:00",
          "utc": "1989-04-06T23:45:58Z",
          "ms": 607909558051.7877
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-06",
          "window": {
            "start": {
              "local": "1989-04-06T11:41:28+08:00",
              "utc": "1989-04-06T03:41:28Z",
              "ms": 607837288303.7505
            },
            "end": {
              "local": "1989-04-06T12:29:28+08:00",
              "utc": "1989-04-06T04:29:28Z",
              "ms": 607840168303.7505
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-04-07",
          "window": {
            "start": {
              "local": "1989-04-07T11:41:11+08:00",
              "utc": "1989-04-07T03:41:11Z",
              "ms": 607923671341.062
            },
            "end": {
              "local": "1989-04-07T12:29:11+08:00",
              "utc": "1989-04-07T04:29:11Z",
              "ms": 607926551341.062
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 11:33 on Thu 6 Apr to 07:46 on Fri 7 Apr.",
          "fact": "1989-04-06T03:32:42Z → 1989-04-06T23:45:58Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 6th, 11:41–12:29 on the 7th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 526 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha (Caitra), Fuzhou, 1989: Thursday 6 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "navaratra-arambha-caitra",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Navaratrarambha (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Navarātrārambha (Caitra) (Chaitra Navratri) 1989 falls on Thursday 6 April. Pratipadā runs from 11:33 on Thu 6 Apr to 07:46 on Fri 7 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/navaratra-arambha-caitra",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/gauri-tritiya",
      "festival": "gauri-tritiya",
      "name": "Gaurī Tṛtīyā",
      "everyday": "Gangaur",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26951,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1989-04-08T04:11:43+08:00",
          "utc": "1989-04-07T20:11:43Z",
          "ms": 607983103252.7106
        },
        "end": {
          "local": "1989-04-09T01:00:39+08:00",
          "utc": "1989-04-08T17:00:39Z",
          "ms": 608058039291.4524
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-08T04:11:43+08:00",
          "utc": "1989-04-07T20:11:43Z",
          "ms": 607983103252.7106
        },
        "end": {
          "local": "1989-04-09T01:00:39+08:00",
          "utc": "1989-04-08T17:00:39Z",
          "ms": 608058039291.4524
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-08",
          "window": {
            "start": {
              "local": "1989-04-08T11:40:55+08:00",
              "utc": "1989-04-08T03:40:55Z",
              "ms": 608010054590.0308
            },
            "end": {
              "local": "1989-04-08T12:28:55+08:00",
              "utc": "1989-04-08T04:28:55Z",
              "ms": 608012934590.0308
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-04-09",
          "window": {
            "start": {
              "local": "1989-04-09T11:40:38+08:00",
              "utc": "1989-04-09T03:40:38Z",
              "ms": 608096438063.669
            },
            "end": {
              "local": "1989-04-09T12:28:38+08:00",
              "utc": "1989-04-09T04:28:38Z",
              "ms": 608099318063.669
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 04:12 on Sat 8 Apr to 01:01 on Sun 9 Apr.",
          "fact": "1989-04-07T20:11:43Z → 1989-04-08T17:00:39Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 8th, 11:41–12:29 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 26951 s"
        },
        {
          "step": "ruling",
          "text": "Gaurī Tṛtīyā, Fuzhou, 1989: Saturday 8 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "gauri-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Gaurī Tṛtīyā (Gangaur) 1989 falls on Saturday 8 April. Tṛtīyā runs from 04:12 on Sat 8 Apr to 01:01 on Sun 9 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/gauri-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/saubhagya-shayana-vrata",
      "festival": "saubhagya-shayana-vrata",
      "name": "Saubhāgya Śayana Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26951,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1989-04-08T04:11:43+08:00",
          "utc": "1989-04-07T20:11:43Z",
          "ms": 607983103252.7106
        },
        "end": {
          "local": "1989-04-09T01:00:39+08:00",
          "utc": "1989-04-08T17:00:39Z",
          "ms": 608058039291.4524
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-08T04:11:43+08:00",
          "utc": "1989-04-07T20:11:43Z",
          "ms": 607983103252.7106
        },
        "end": {
          "local": "1989-04-09T01:00:39+08:00",
          "utc": "1989-04-08T17:00:39Z",
          "ms": 608058039291.4524
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-08",
          "window": {
            "start": {
              "local": "1989-04-08T11:40:55+08:00",
              "utc": "1989-04-08T03:40:55Z",
              "ms": 608010054590.0308
            },
            "end": {
              "local": "1989-04-08T12:28:55+08:00",
              "utc": "1989-04-08T04:28:55Z",
              "ms": 608012934590.0308
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-04-09",
          "window": {
            "start": {
              "local": "1989-04-09T11:40:38+08:00",
              "utc": "1989-04-09T03:40:38Z",
              "ms": 608096438063.669
            },
            "end": {
              "local": "1989-04-09T12:28:38+08:00",
              "utc": "1989-04-09T04:28:38Z",
              "ms": 608099318063.669
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 04:12 on Sat 8 Apr to 01:01 on Sun 9 Apr.",
          "fact": "1989-04-07T20:11:43Z → 1989-04-08T17:00:39Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 8th, 11:41–12:29 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 26951 s"
        },
        {
          "step": "ruling",
          "text": "Saubhāgya Śayana Vrata, Fuzhou, 1989: Saturday 8 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "saubhagya-shayana-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saubhāgya Śayana Vrata 1989 falls on Saturday 8 April. Tṛtīyā runs from 04:12 on Sat 8 Apr to 01:01 on Sun 9 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/saubhagya-shayana-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-04-09",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35649,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-04-09T01:00:39+08:00",
          "utc": "1989-04-08T17:00:39Z",
          "ms": 608058039291.4524
        },
        "end": {
          "local": "1989-04-09T22:22:47+08:00",
          "utc": "1989-04-09T14:22:47Z",
          "ms": 608134966709.0425
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-09T01:00:39+08:00",
          "utc": "1989-04-08T17:00:39Z",
          "ms": 608058039291.4524
        },
        "end": {
          "local": "1989-04-09T22:22:47+08:00",
          "utc": "1989-04-09T14:22:47Z",
          "ms": 608134966709.0425
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-08",
          "window": {
            "start": {
              "local": "1989-04-08T11:40:55+08:00",
              "utc": "1989-04-08T03:40:55Z",
              "ms": 608010054590.0308
            },
            "end": {
              "local": "1989-04-08T12:28:55+08:00",
              "utc": "1989-04-08T04:28:55Z",
              "ms": 608012934590.0308
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-04-09",
          "window": {
            "start": {
              "local": "1989-04-09T11:40:38+08:00",
              "utc": "1989-04-09T03:40:38Z",
              "ms": 608096438063.669
            },
            "end": {
              "local": "1989-04-09T12:28:38+08:00",
              "utc": "1989-04-09T04:28:38Z",
              "ms": 608099318063.669
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 01:01 on Sun 9 Apr to 22:23 on Sun 9 Apr.",
          "fact": "1989-04-08T17:00:39Z → 1989-04-09T14:22:47Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 8th, 11:41–12:29 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 35649 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Sunday 9 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Sunday 9 April. Caturthī runs from 01:01 on Sun 9 Apr to 22:23 on Sun 9 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-04-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/lakshmi-panchami",
      "festival": "lakshmi-panchami",
      "name": "Lakṣmī Pañcamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28700,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1989-04-09T22:22:47+08:00",
          "utc": "1989-04-09T14:22:47Z",
          "ms": 608134966709.0425
        },
        "end": {
          "local": "1989-04-10T20:26:42+08:00",
          "utc": "1989-04-10T12:26:42Z",
          "ms": 608214401852.9374
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-09T22:22:47+08:00",
          "utc": "1989-04-09T14:22:47Z",
          "ms": 608134966709.0425
        },
        "end": {
          "local": "1989-04-10T20:26:42+08:00",
          "utc": "1989-04-10T12:26:42Z",
          "ms": 608214401852.9374
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-09",
          "window": {
            "start": {
              "local": "1989-04-09T11:40:38+08:00",
              "utc": "1989-04-09T03:40:38Z",
              "ms": 608096438063.669
            },
            "end": {
              "local": "1989-04-09T12:28:38+08:00",
              "utc": "1989-04-09T04:28:38Z",
              "ms": 608099318063.669
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-04-10",
          "window": {
            "start": {
              "local": "1989-04-10T11:40:22+08:00",
              "utc": "1989-04-10T03:40:22Z",
              "ms": 608182821775.588
            },
            "end": {
              "local": "1989-04-10T12:28:22+08:00",
              "utc": "1989-04-10T04:28:22Z",
              "ms": 608185701775.588
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 22:23 on Sun 9 Apr to 20:27 on Mon 10 Apr.",
          "fact": "1989-04-09T14:22:47Z → 1989-04-10T12:26:42Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 9th, 11:40–12:28 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 28700 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pañcamī, Fuzhou, 1989: Monday 10 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "lakshmi-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Lakṣmī Pañcamī 1989 falls on Monday 10 April. Pañcamī runs from 22:23 on Sun 9 Apr to 20:27 on Mon 10 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/lakshmi-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vaishakhi",
      "festival": "vaishakhi",
      "name": "Vaiśākhī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19601,
      "anga": {
        "type": "sankranti",
        "index": 0,
        "key": "mesha",
        "name": "Meṣa",
        "start": {
          "local": "1989-04-14T00:14:38+08:00",
          "utc": "1989-04-13T16:14:38Z",
          "ms": 608487277843.8328
        },
        "end": {
          "local": "1989-05-14T22:08:43+09:00",
          "utc": "1989-05-14T13:08:43Z",
          "ms": 611154522785.2247
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1989-04-14T00:14:38+08:00",
          "utc": "1989-04-13T16:14:38Z",
          "ms": 608487277843.8328
        },
        "end": {
          "local": "1989-04-14T00:14:38+08:00",
          "utc": "1989-04-13T16:14:38Z",
          "ms": 608487277843.8328
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "1989-04-13",
          "window": {
            "start": {
              "local": "1989-04-13T05:42:18+08:00",
              "utc": "1989-04-12T21:42:18Z",
              "ms": 608420537743.8441
            },
            "end": {
              "local": "1989-04-14T05:41:19+08:00",
              "utc": "1989-04-13T21:41:19Z",
              "ms": 608506878531.6704
            }
          },
          "covered_min": 1,
          "window_min": 1439,
          "qualifies": true
        },
        {
          "local_date": "1989-04-14",
          "window": {
            "start": {
              "local": "1989-04-14T05:41:19+08:00",
              "utc": "1989-04-13T21:41:19Z",
              "ms": 608506878531.6704
            },
            "end": {
              "local": "1989-04-15T05:40:20+08:00",
              "utc": "1989-04-14T21:40:20Z",
              "ms": 608593219838.229
            }
          },
          "covered_min": 0,
          "window_min": 1439,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Meṣa at 00:15 on Fri 14 Apr.",
          "fact": "1989-04-13T16:14:38Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 05:42 on the 13th, and from 05:41 on the 14th.",
          "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunrise → only-day · margin 19601 s"
        },
        {
          "step": "ruling",
          "text": "Vaiśākhī, Fuzhou, 1989: Thursday 13 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "vaishakhi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)."
          },
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        ],
        "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.",
        "rashi": "Meṣa",
        "day_from": "sunrise"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "1989-04-14",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunset-rule",
          "local_date": "1989-04-14",
          "statement": "Past sunset, the next day (the Tamil rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        }
      ],
      "quote": "In Fuzhou, Vaiśākhī 1989 falls on Thursday 13 April. The Sun enters Meṣa at 00:15 on Fri 14 Apr, and the rule counts the day from sunrise. Counted from midnight, or by the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 April.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vaishakhi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/bhavani-utpatti",
      "festival": "bhavani-utpatti",
      "name": "Bhavānī Utpatti",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23652,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-04-12T19:02:02+08:00",
          "utc": "1989-04-12T11:02:02Z",
          "ms": 608382121549.7666
        },
        "end": {
          "local": "1989-04-13T19:35:43+08:00",
          "utc": "1989-04-13T11:35:43Z",
          "ms": 608470542992.7627
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-12T19:02:02+08:00",
          "utc": "1989-04-12T11:02:02Z",
          "ms": 608382121549.7666
        },
        "end": {
          "local": "1989-04-13T19:35:43+08:00",
          "utc": "1989-04-13T11:35:43Z",
          "ms": 608470542992.7627
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-12",
          "window": {
            "start": {
              "local": "1989-04-12T11:39:50+08:00",
              "utc": "1989-04-12T03:39:50Z",
              "ms": 608355589972.7148
            },
            "end": {
              "local": "1989-04-12T12:27:50+08:00",
              "utc": "1989-04-12T04:27:50Z",
              "ms": 608358469972.7148
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-04-13",
          "window": {
            "start": {
              "local": "1989-04-13T11:39:34+08:00",
              "utc": "1989-04-13T03:39:34Z",
              "ms": 608441974488.9817
            },
            "end": {
              "local": "1989-04-13T12:27:34+08:00",
              "utc": "1989-04-13T04:27:34Z",
              "ms": 608444854488.9817
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 19:02 on Wed 12 Apr to 19:36 on Thu 13 Apr.",
          "fact": "1989-04-12T11:02:02Z → 1989-04-13T11:35:43Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 12th, 11:40–12:28 on the 13th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 23652 s"
        },
        {
          "step": "ruling",
          "text": "Bhavānī Utpatti, Fuzhou, 1989: Thursday 13 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "bhavani-utpatti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Bhavānī Utpatti 1989 falls on Thursday 13 April. Aṣṭamī runs from 19:02 on Wed 12 Apr to 19:36 on Thu 13 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/bhavani-utpatti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/rama-navami",
      "festival": "rama-navami",
      "name": "Rāma Navamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25689,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1989-04-13T19:35:43+08:00",
          "utc": "1989-04-13T11:35:43Z",
          "ms": 608470542992.7627
        },
        "end": {
          "local": "1989-04-14T20:54:45+08:00",
          "utc": "1989-04-14T12:54:45Z",
          "ms": 608561685482.484
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-13T19:35:43+08:00",
          "utc": "1989-04-13T11:35:43Z",
          "ms": 608470542992.7627
        },
        "end": {
          "local": "1989-04-14T20:54:45+08:00",
          "utc": "1989-04-14T12:54:45Z",
          "ms": 608561685482.484
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-13",
          "window": {
            "start": {
              "local": "1989-04-13T11:39:34+08:00",
              "utc": "1989-04-13T03:39:34Z",
              "ms": 608441974488.9817
            },
            "end": {
              "local": "1989-04-13T12:27:34+08:00",
              "utc": "1989-04-13T04:27:34Z",
              "ms": 608444854488.9817
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-04-14",
          "window": {
            "start": {
              "local": "1989-04-14T11:39:19+08:00",
              "utc": "1989-04-14T03:39:19Z",
              "ms": 608528359305.3054
            },
            "end": {
              "local": "1989-04-14T12:27:19+08:00",
              "utc": "1989-04-14T04:27:19Z",
              "ms": 608531239305.3054
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 19:36 on Thu 13 Apr to 20:55 on Fri 14 Apr.",
          "fact": "1989-04-13T11:35:43Z → 1989-04-14T12:54:45Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 13th, 11:39–12:27 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 25689 s"
        },
        {
          "step": "ruling",
          "text": "Rāma Navamī, Fuzhou, 1989: Friday 14 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rama-navami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti."
          }
        ],
        "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.",
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Rāma Navamī 1989 falls on Friday 14 April. Navamī runs from 19:36 on Thu 13 Apr to 20:55 on Fri 14 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/rama-navami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-04-16",
      "festival": "ekadashi",
      "name": "Kāmadā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16019,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-04-15T22:50:23+08:00",
          "utc": "1989-04-15T14:50:23Z",
          "ms": 608655023310.3044
        },
        "end": {
          "local": "1989-04-17T02:11:26+09:00",
          "utc": "1989-04-16T17:11:26Z",
          "ms": 608749885601.2365
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-15T22:50:23+08:00",
          "utc": "1989-04-15T14:50:23Z",
          "ms": 608655023310.3044
        },
        "end": {
          "local": "1989-04-17T02:11:26+09:00",
          "utc": "1989-04-16T17:11:26Z",
          "ms": 608749885601.2365
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-04-16",
          "window": {
            "start": {
              "local": "1989-04-16T06:39:22+09:00",
              "utc": "1989-04-15T21:39:22Z",
              "ms": 608679561689.3293
            },
            "end": {
              "local": "1989-04-16T06:39:22+09:00",
              "utc": "1989-04-15T21:39:22Z",
              "ms": 608679561689.3293
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-04-17",
          "window": {
            "start": {
              "local": "1989-04-17T06:38:24+09:00",
              "utc": "1989-04-16T21:38:24Z",
              "ms": 608765904110.905
            },
            "end": {
              "local": "1989-04-17T06:38:24+09:00",
              "utc": "1989-04-16T21:38:24Z",
              "ms": 608765904110.905
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 22:50 on Sat 15 Apr to 02:11 on Mon 17 Apr.",
          "fact": "1989-04-15T14:50:23Z → 1989-04-16T17:11:26Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:39 on the 16th and 06:38 on the 17th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 16th and is not on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 16019 s"
        },
        {
          "step": "ruling",
          "text": "Kāmadā Ekādaśī, Fuzhou, 1989: Sunday 16 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kāmadā Ekādaśī 1989 falls on Sunday 16 April. Ekādaśī runs from 22:50 on Sat 15 Apr to 02:11 on Mon 17 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-04-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ananga-trayodashi",
      "festival": "ananga-trayodashi",
      "name": "Anaṅga Trayodaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18891,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-04-18T04:46:01+09:00",
          "utc": "1989-04-17T19:46:01Z",
          "ms": 608845561092.5421
        },
        "end": {
          "local": "1989-04-19T07:23:18+09:00",
          "utc": "1989-04-18T22:23:18Z",
          "ms": 608941397947.3468
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-18T04:46:01+09:00",
          "utc": "1989-04-17T19:46:01Z",
          "ms": 608845561092.5421
        },
        "end": {
          "local": "1989-04-19T07:23:18+09:00",
          "utc": "1989-04-18T22:23:18Z",
          "ms": 608941397947.3468
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-18",
          "window": {
            "start": {
              "local": "1989-04-18T12:38:22+09:00",
              "utc": "1989-04-18T03:38:22Z",
              "ms": 608873901904.217
            },
            "end": {
              "local": "1989-04-18T13:26:22+09:00",
              "utc": "1989-04-18T04:26:22Z",
              "ms": 608876781904.217
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-04-19",
          "window": {
            "start": {
              "local": "1989-04-19T12:38:08+09:00",
              "utc": "1989-04-19T03:38:08Z",
              "ms": 608960288470.8394
            },
            "end": {
              "local": "1989-04-19T13:26:08+09:00",
              "utc": "1989-04-19T04:26:08Z",
              "ms": 608963168470.8394
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:46 on Tue 18 Apr to 07:23 on Wed 19 Apr.",
          "fact": "1989-04-17T19:46:01Z → 1989-04-18T22:23:18Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 18th, 12:38–13:26 on the 19th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 18891 s"
        },
        {
          "step": "ruling",
          "text": "Anaṅga Trayodaśī, Fuzhou, 1989: Tuesday 18 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ananga-trayodashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Anaṅga Trayodaśī 1989 falls on Tuesday 18 April. Trayodaśī runs from 04:46 on Tue 18 Apr to 07:23 on Wed 19 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ananga-trayodashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-04-18",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28188,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-04-18T04:46:01+09:00",
          "utc": "1989-04-17T19:46:01Z",
          "ms": 608845561092.5421
        },
        "end": {
          "local": "1989-04-19T07:23:18+09:00",
          "utc": "1989-04-18T22:23:18Z",
          "ms": 608941397947.3468
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-18T04:46:01+09:00",
          "utc": "1989-04-17T19:46:01Z",
          "ms": 608845561092.5421
        },
        "end": {
          "local": "1989-04-19T07:23:18+09:00",
          "utc": "1989-04-18T22:23:18Z",
          "ms": 608941397947.3468
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-04-17",
          "window": {
            "start": {
              "local": "1989-04-17T19:26:47+09:00",
              "utc": "1989-04-17T10:26:47Z",
              "ms": 608812007331.0809
            },
            "end": {
              "local": "1989-04-17T20:56:13+09:00",
              "utc": "1989-04-17T11:56:13Z",
              "ms": 608817372637.4646
            }
          },
          "covered_min": 0,
          "window_min": 89,
          "qualifies": false
        },
        {
          "local_date": "1989-04-18",
          "window": {
            "start": {
              "local": "1989-04-18T19:27:17+09:00",
              "utc": "1989-04-18T10:27:17Z",
              "ms": 608898436679.4755
            },
            "end": {
              "local": "1989-04-18T20:56:31+09:00",
              "utc": "1989-04-18T11:56:31Z",
              "ms": 608903790558.149
            }
          },
          "covered_min": 89,
          "window_min": 89,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:46 on Tue 18 Apr to 07:23 on Wed 19 Apr.",
          "fact": "1989-04-17T19:46:01Z → 1989-04-18T22:23:18Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:27–20:56 on the 17th, 19:27–20:57 on the 18th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 89 minutes on the 17th and 89 of 89 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28188 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Tuesday 18 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Tuesday 18 April. Trayodaśī runs from 04:46 on Tue 18 Apr to 07:23 on Wed 19 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-04-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vishnu-damanaka-chaturdashi",
      "festival": "vishnu-damanaka-chaturdashi",
      "name": "Viṣṇudamanaka Caturdaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9806,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-04-19T07:23:18+09:00",
          "utc": "1989-04-18T22:23:18Z",
          "ms": 608941397947.3468
        },
        "end": {
          "local": "1989-04-20T09:54:30+09:00",
          "utc": "1989-04-20T00:54:30Z",
          "ms": 609036869847.647
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-19T07:23:18+09:00",
          "utc": "1989-04-18T22:23:18Z",
          "ms": 608941397947.3468
        },
        "end": {
          "local": "1989-04-20T09:54:30+09:00",
          "utc": "1989-04-20T00:54:30Z",
          "ms": 609036869847.647
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-19",
          "window": {
            "start": {
              "local": "1989-04-19T12:38:08+09:00",
              "utc": "1989-04-19T03:38:08Z",
              "ms": 608960288470.8394
            },
            "end": {
              "local": "1989-04-19T13:26:08+09:00",
              "utc": "1989-04-19T04:26:08Z",
              "ms": 608963168470.8394
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-04-20",
          "window": {
            "start": {
              "local": "1989-04-20T12:37:55+09:00",
              "utc": "1989-04-20T03:37:55Z",
              "ms": 609046675437.2751
            },
            "end": {
              "local": "1989-04-20T13:25:55+09:00",
              "utc": "1989-04-20T04:25:55Z",
              "ms": 609049555437.2751
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 07:23 on Wed 19 Apr to 09:54 on Thu 20 Apr.",
          "fact": "1989-04-18T22:23:18Z → 1989-04-20T00:54:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 19th, 12:38–13:26 on the 20th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 9806 s"
        },
        {
          "step": "ruling",
          "text": "Viṣṇudamanaka Caturdaśī, Fuzhou, 1989: Wednesday 19 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vishnu-damanaka-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Viṣṇudamanaka Caturdaśī 1989 falls on Wednesday 19 April. Caturdaśī runs from 07:23 on Wed 19 Apr to 09:54 on Thu 20 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vishnu-damanaka-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/chaitri-purnima",
      "festival": "chaitri-purnima",
      "name": "Caitrī Pūrṇimā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1466,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-04-20T09:54:30+09:00",
          "utc": "1989-04-20T00:54:30Z",
          "ms": 609036869847.647
        },
        "end": {
          "local": "1989-04-21T12:13:16+09:00",
          "utc": "1989-04-21T03:13:16Z",
          "ms": 609131596377.2242
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-20T09:54:30+09:00",
          "utc": "1989-04-20T00:54:30Z",
          "ms": 609036869847.647
        },
        "end": {
          "local": "1989-04-21T12:13:16+09:00",
          "utc": "1989-04-21T03:13:16Z",
          "ms": 609131596377.2242
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-04-20",
          "window": {
            "start": {
              "local": "1989-04-20T12:37:55+09:00",
              "utc": "1989-04-20T03:37:55Z",
              "ms": 609046675437.2751
            },
            "end": {
              "local": "1989-04-20T13:25:55+09:00",
              "utc": "1989-04-20T04:25:55Z",
              "ms": 609049555437.2751
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-04-21",
          "window": {
            "start": {
              "local": "1989-04-21T12:37:43+09:00",
              "utc": "1989-04-21T03:37:43Z",
              "ms": 609133062819.7046
            },
            "end": {
              "local": "1989-04-21T13:25:43+09:00",
              "utc": "1989-04-21T04:25:43Z",
              "ms": 609135942819.7046
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 09:54 on Thu 20 Apr to 12:13 on Fri 21 Apr.",
          "fact": "1989-04-20T00:54:30Z → 1989-04-21T03:13:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 20th, 12:38–13:26 on the 21st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 1466 s"
        },
        {
          "step": "ruling",
          "text": "Caitrī Pūrṇimā, Fuzhou, 1989: Thursday 20 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "chaitri-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Caitri purnima (paraviddha), Hanumat jayanti, Oli ending (Jain)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Caitrī Pūrṇimā 1989 falls on Thursday 20 April. Pūrṇimā runs from 09:54 on Thu 20 Apr to 12:13 on Fri 21 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/chaitri-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-04-24",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-04-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19005,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-04-24T17:18:56+09:00",
          "utc": "1989-04-24T08:18:56Z",
          "ms": 609409135588.427
        },
        "end": {
          "local": "1989-04-25T18:15:48+09:00",
          "utc": "1989-04-25T09:15:48Z",
          "ms": 609498948209.8424
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-04-24T17:18:56+09:00",
          "utc": "1989-04-24T08:18:56Z",
          "ms": 609409135588.427
        },
        "end": {
          "local": "1989-04-25T18:15:48+09:00",
          "utc": "1989-04-25T09:15:48Z",
          "ms": 609498948209.8424
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-04-24",
          "window": {
            "start": {
              "local": "1989-04-24T22:35:58+09:00",
              "utc": "1989-04-24T13:35:58Z",
              "ms": 609428158189.0204
            },
            "end": {
              "local": "1989-04-24T22:35:58+09:00",
              "utc": "1989-04-24T13:35:58Z",
              "ms": 609428158189.0204
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-04-25",
          "window": {
            "start": {
              "local": "1989-04-25T23:32:33+09:00",
              "utc": "1989-04-25T14:32:33Z",
              "ms": 609517953258.3026
            },
            "end": {
              "local": "1989-04-25T23:32:33+09:00",
              "utc": "1989-04-25T14:32:33Z",
              "ms": 609517953258.3026
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:19 on Mon 24 Apr to 18:16 on Tue 25 Apr.",
          "fact": "1989-04-24T08:18:56Z → 1989-04-25T09:15:48Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:36 on the 24th and 23:33 on the 25th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 24th and is not on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 19005 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Monday 24 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-04-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-04-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Monday 24 April. Caturthī runs from 17:19 on Mon 24 Apr to 18:16 on Tue 25 Apr and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-04-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-05-02",
      "festival": "ekadashi",
      "name": "Varūthinī Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14527,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-05-01T13:12:25+09:00",
          "utc": "1989-05-01T04:12:25Z",
          "ms": 609999144633.5905
        },
        "end": {
          "local": "1989-05-02T10:27:34+09:00",
          "utc": "1989-05-02T01:27:34Z",
          "ms": 610075653548.6399
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-01T13:12:25+09:00",
          "utc": "1989-05-01T04:12:25Z",
          "ms": 609999144633.5905
        },
        "end": {
          "local": "1989-05-02T10:27:34+09:00",
          "utc": "1989-05-02T01:27:34Z",
          "ms": 610075653548.6399
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-05-01",
          "window": {
            "start": {
              "local": "1989-05-01T06:26:12+09:00",
              "utc": "1989-04-30T21:26:12Z",
              "ms": 609974772412.8923
            },
            "end": {
              "local": "1989-05-01T06:26:12+09:00",
              "utc": "1989-04-30T21:26:12Z",
              "ms": 609974772412.8923
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-05-02",
          "window": {
            "start": {
              "local": "1989-05-02T06:25:26+09:00",
              "utc": "1989-05-01T21:25:26Z",
              "ms": 610061126469.2902
            },
            "end": {
              "local": "1989-05-02T06:25:26+09:00",
              "utc": "1989-05-01T21:25:26Z",
              "ms": 610061126469.2902
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 13:12 on Mon 1 May to 10:28 on Tue 2 May.",
          "fact": "1989-05-01T04:12:25Z → 1989-05-02T01:27:34Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:26 on the 1st and 06:25 on the 2nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 1st and is on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 14527 s"
        },
        {
          "step": "ruling",
          "text": "Varūthinī Ekādaśī, Fuzhou, 1989: Tuesday 2 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Varūthinī Ekādaśī 1989 falls on Tuesday 2 May. Ekādaśī runs from 13:12 on Mon 1 May to 10:28 on Tue 2 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-05-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-05-03",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24644,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-05-03T07:18:20+09:00",
          "utc": "1989-05-02T22:18:20Z",
          "ms": 610150699563.3087
        },
        "end": {
          "local": "1989-05-04T03:52:13+09:00",
          "utc": "1989-05-03T18:52:13Z",
          "ms": 610224732820.8683
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-03T07:18:20+09:00",
          "utc": "1989-05-02T22:18:20Z",
          "ms": 610150699563.3087
        },
        "end": {
          "local": "1989-05-04T03:52:13+09:00",
          "utc": "1989-05-03T18:52:13Z",
          "ms": 610224732820.8683
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-05-02",
          "window": {
            "start": {
              "local": "1989-05-02T19:34:25+09:00",
              "utc": "1989-05-02T10:34:25Z",
              "ms": 610108464751.3058
            },
            "end": {
              "local": "1989-05-02T21:01:07+09:00",
              "utc": "1989-05-02T12:01:07Z",
              "ms": 610113666983.2098
            }
          },
          "covered_min": 0,
          "window_min": 87,
          "qualifies": false
        },
        {
          "local_date": "1989-05-03",
          "window": {
            "start": {
              "local": "1989-05-03T19:34:57+09:00",
              "utc": "1989-05-03T10:34:57Z",
              "ms": 610194896576.6252
            },
            "end": {
              "local": "1989-05-03T21:01:29+09:00",
              "utc": "1989-05-03T12:01:29Z",
              "ms": 610200088699.0128
            }
          },
          "covered_min": 87,
          "window_min": 87,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 07:18 on Wed 3 May to 03:52 on Thu 4 May.",
          "fact": "1989-05-02T22:18:20Z → 1989-05-03T18:52:13Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:34–21:01 on the 2nd, 19:35–21:01 on the 3rd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 87 minutes on the 2nd and 87 of 87 on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 24644 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Wednesday 3 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Wednesday 3 May. Trayodaśī runs from 07:18 on Wed 3 May to 03:52 on Thu 4 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-05-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-05-03",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-03",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 1029,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-05-04T03:52:13+09:00",
          "utc": "1989-05-03T18:52:13Z",
          "ms": 610224732820.8683
        },
        "end": {
          "local": "1989-05-05T00:18:13+09:00",
          "utc": "1989-05-04T15:18:13Z",
          "ms": 610298292559.5891
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-04T03:52:13+09:00",
          "utc": "1989-05-03T18:52:13Z",
          "ms": 610224732820.8683
        },
        "end": {
          "local": "1989-05-05T00:18:13+09:00",
          "utc": "1989-05-04T15:18:13Z",
          "ms": 610298292559.5891
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-05-03",
          "window": {
            "start": {
              "local": "1989-05-04T00:35:27+09:00",
              "utc": "1989-05-03T15:35:27Z",
              "ms": 610212927035.5789
            },
            "end": {
              "local": "1989-05-04T01:23:27+09:00",
              "utc": "1989-05-03T16:23:27Z",
              "ms": 610215807035.5789
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-05-04",
          "window": {
            "start": {
              "local": "1989-05-05T00:35:22+09:00",
              "utc": "1989-05-04T15:35:22Z",
              "ms": 610299321516.3834
            },
            "end": {
              "local": "1989-05-05T01:23:22+09:00",
              "utc": "1989-05-04T16:23:22Z",
              "ms": 610302201516.3834
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 03:52 on Thu 4 May to 00:18 on Fri 5 May.",
          "fact": "1989-05-03T18:52:13Z → 1989-05-04T15:18:13Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:35–01:23 on the 3rd, 00:35–01:23 on the 4th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 3rd and 0 of 48 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither night qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 1029 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Wednesday 3 May.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-03",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-03",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Wednesday 3 May. Caturdaśī runs from 03:52 on Thu 4 May to 00:18 on Fri 5 May, and reaches niśītha on neither day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-05-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/parashurama-jayanti",
      "festival": "parashurama-jayanti",
      "name": "Paraśurāma Jayantī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18308,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1989-05-07T14:31:57+09:00",
          "utc": "1989-05-07T05:31:57Z",
          "ms": 610522317111.7273
        },
        "end": {
          "local": "1989-05-08T12:10:21+09:00",
          "utc": "1989-05-08T03:10:21Z",
          "ms": 610600221468.0554
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-07T14:31:57+09:00",
          "utc": "1989-05-07T05:31:57Z",
          "ms": 610522317111.7273
        },
        "end": {
          "local": "1989-05-08T12:10:21+09:00",
          "utc": "1989-05-08T03:10:21Z",
          "ms": 610600221468.0554
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-05-07",
          "window": {
            "start": {
              "local": "1989-05-07T19:37:05+09:00",
              "utc": "1989-05-07T10:37:05Z",
              "ms": 610540625063.8542
            },
            "end": {
              "local": "1989-05-07T21:02:58+09:00",
              "utc": "1989-05-07T12:02:58Z",
              "ms": 610545777940.6002
            }
          },
          "covered_min": 86,
          "window_min": 86,
          "qualifies": true
        },
        {
          "local_date": "1989-05-08",
          "window": {
            "start": {
              "local": "1989-05-08T19:37:37+09:00",
              "utc": "1989-05-08T10:37:37Z",
              "ms": 610627057400.9579
            },
            "end": {
              "local": "1989-05-08T21:03:21+09:00",
              "utc": "1989-05-08T12:03:21Z",
              "ms": 610632200784.5225
            }
          },
          "covered_min": 0,
          "window_min": 86,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 14:32 on Sun 7 May to 12:10 on Mon 8 May.",
          "fact": "1989-05-07T05:31:57Z → 1989-05-08T03:10:21Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:37–21:03 on the 7th, 19:38–21:03 on the 8th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pradoṣa. It covers 86 of 86 minutes on the 7th and 0 of 86 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 18308 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Jayantī, Fuzhou, 1989: Sunday 7 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "parashurama-jayanti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)."
          }
        ],
        "kaala": "pradosha",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Paraśurāma Jayantī 1989 falls on Sunday 7 May. Tṛtīyā runs from 14:32 on Sun 7 May to 12:10 on Mon 8 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/parashurama-jayanti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/akshaya-tritiya",
      "festival": "akshaya-tritiya",
      "name": "Akṣaya Tṛtīyā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5021,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1989-05-07T14:31:57+09:00",
          "utc": "1989-05-07T05:31:57Z",
          "ms": 610522317111.7273
        },
        "end": {
          "local": "1989-05-08T12:10:21+09:00",
          "utc": "1989-05-08T03:10:21Z",
          "ms": 610600221468.0554
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-07T14:31:57+09:00",
          "utc": "1989-05-07T05:31:57Z",
          "ms": 610522317111.7273
        },
        "end": {
          "local": "1989-05-08T12:10:21+09:00",
          "utc": "1989-05-08T03:10:21Z",
          "ms": 610600221468.0554
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1989-05-07",
          "window": {
            "start": {
              "local": "1989-05-07T06:21:52+09:00",
              "utc": "1989-05-06T21:21:52Z",
              "ms": 610492911555.832
            },
            "end": {
              "local": "1989-05-07T10:46:56+09:00",
              "utc": "1989-05-07T01:46:56Z",
              "ms": 610508816058.5061
            }
          },
          "covered_min": 0,
          "window_min": 265,
          "qualifies": false
        },
        {
          "local_date": "1989-05-08",
          "window": {
            "start": {
              "local": "1989-05-08T06:21:12+09:00",
              "utc": "1989-05-07T21:21:12Z",
              "ms": 610579271639.4491
            },
            "end": {
              "local": "1989-05-08T10:46:40+09:00",
              "utc": "1989-05-08T01:46:40Z",
              "ms": 610595200226.6187
            }
          },
          "covered_min": 265,
          "window_min": 265,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 14:32 on Sun 7 May to 12:10 on Mon 8 May.",
          "fact": "1989-05-07T05:31:57Z → 1989-05-08T03:10:21Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:22–10:47 on the 7th, 06:21–10:47 on the 8th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 0 of 265 minutes on the 7th and 265 of 265 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one forenoon qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 5021 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Tṛtīyā, Fuzhou, 1989: Monday 8 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "akshaya-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)."
          }
        ],
        "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.",
        "kaala": "purvahna",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Akṣaya Tṛtīyā 1989 falls on Monday 8 May. Tṛtīyā runs from 14:32 on Sun 7 May to 12:10 on Mon 8 May and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/akshaya-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-05-08",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1503,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-05-08T12:10:21+09:00",
          "utc": "1989-05-08T03:10:21Z",
          "ms": 610600221468.0554
        },
        "end": {
          "local": "1989-05-09T10:31:25+09:00",
          "utc": "1989-05-09T01:31:25Z",
          "ms": 610680684898.3376
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-08T12:10:21+09:00",
          "utc": "1989-05-08T03:10:21Z",
          "ms": 610600221468.0554
        },
        "end": {
          "local": "1989-05-09T10:31:25+09:00",
          "utc": "1989-05-09T01:31:25Z",
          "ms": 610680684898.3376
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-05-08",
          "window": {
            "start": {
              "local": "1989-05-08T12:35:25+09:00",
              "utc": "1989-05-08T03:35:25Z",
              "ms": 610601724520.2035
            },
            "end": {
              "local": "1989-05-08T13:23:25+09:00",
              "utc": "1989-05-08T04:23:25Z",
              "ms": 610604604520.2035
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-05-09",
          "window": {
            "start": {
              "local": "1989-05-09T12:35:21+09:00",
              "utc": "1989-05-09T03:35:21Z",
              "ms": 610688121283.727
            },
            "end": {
              "local": "1989-05-09T13:23:21+09:00",
              "utc": "1989-05-09T04:23:21Z",
              "ms": 610691001283.727
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 12:10 on Mon 8 May to 10:31 on Tue 9 May.",
          "fact": "1989-05-08T03:10:21Z → 1989-05-09T01:31:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 8th, 12:35–13:23 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 1503 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Monday 8 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Monday 8 May. Caturthī runs from 12:10 on Mon 8 May to 10:31 on Tue 9 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-05-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shankara-jayanti",
      "festival": "shankara-jayanti",
      "name": "Śaṅkara Jayantī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7436,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1989-05-09T10:31:25+09:00",
          "utc": "1989-05-09T01:31:25Z",
          "ms": 610680684898.3376
        },
        "end": {
          "local": "1989-05-10T09:41:33+09:00",
          "utc": "1989-05-10T00:41:33Z",
          "ms": 610764093291.1633
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-09T10:31:25+09:00",
          "utc": "1989-05-09T01:31:25Z",
          "ms": 610680684898.3376
        },
        "end": {
          "local": "1989-05-10T09:41:33+09:00",
          "utc": "1989-05-10T00:41:33Z",
          "ms": 610764093291.1633
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-05-09",
          "window": {
            "start": {
              "local": "1989-05-09T12:35:21+09:00",
              "utc": "1989-05-09T03:35:21Z",
              "ms": 610688121283.727
            },
            "end": {
              "local": "1989-05-09T13:23:21+09:00",
              "utc": "1989-05-09T04:23:21Z",
              "ms": 610691001283.727
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-05-10",
          "window": {
            "start": {
              "local": "1989-05-10T12:35:19+09:00",
              "utc": "1989-05-10T03:35:19Z",
              "ms": 610774518599.1128
            },
            "end": {
              "local": "1989-05-10T13:23:19+09:00",
              "utc": "1989-05-10T04:23:19Z",
              "ms": 610777398599.1128
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 10:31 on Tue 9 May to 09:42 on Wed 10 May.",
          "fact": "1989-05-09T01:31:25Z → 1989-05-10T00:41:33Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 9th, 12:35–13:23 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7436 s"
        },
        {
          "step": "ruling",
          "text": "Śaṅkara Jayantī, Fuzhou, 1989: Tuesday 9 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shankara-jayanti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Sankara jayanti."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śaṅkara Jayantī 1989 falls on Tuesday 9 May. Pañcamī runs from 10:31 on Tue 9 May to 09:42 on Wed 10 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shankara-jayanti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/gangotpatti",
      "festival": "gangotpatti",
      "name": "Gaṅgotpatti",
      "everyday": "Ganga Saptami",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7143,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1989-05-11T09:43:41+09:00",
          "utc": "1989-05-11T00:43:41Z",
          "ms": 610850620827.9269
        },
        "end": {
          "local": "1989-05-12T10:36:12+09:00",
          "utc": "1989-05-12T01:36:12Z",
          "ms": 610940172348.9698
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-11T09:43:41+09:00",
          "utc": "1989-05-11T00:43:41Z",
          "ms": 610850620827.9269
        },
        "end": {
          "local": "1989-05-12T10:36:12+09:00",
          "utc": "1989-05-12T01:36:12Z",
          "ms": 610940172348.9698
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-05-11",
          "window": {
            "start": {
              "local": "1989-05-11T12:35:16+09:00",
              "utc": "1989-05-11T03:35:16Z",
              "ms": 610860916465.44
            },
            "end": {
              "local": "1989-05-11T13:23:16+09:00",
              "utc": "1989-05-11T04:23:16Z",
              "ms": 610863796465.44
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-05-12",
          "window": {
            "start": {
              "local": "1989-05-12T12:35:15+09:00",
              "utc": "1989-05-12T03:35:15Z",
              "ms": 610947314882.0203
            },
            "end": {
              "local": "1989-05-12T13:23:15+09:00",
              "utc": "1989-05-12T04:23:15Z",
              "ms": 610950194882.0203
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 09:44 on Thu 11 May to 10:36 on Fri 12 May.",
          "fact": "1989-05-11T00:43:41Z → 1989-05-12T01:36:12Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 11th, 12:35–13:23 on the 12th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 7143 s"
        },
        {
          "step": "ruling",
          "text": "Gaṅgotpatti, Fuzhou, 1989: Thursday 11 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "gangotpatti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Gaṅgotpatti (Ganga Saptami) 1989 falls on Thursday 11 May. Saptamī runs from 09:44 on Thu 11 May to 10:36 on Fri 12 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/gangotpatti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-05-16",
      "festival": "ekadashi",
      "name": "Mohinī Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38056,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-05-15T16:51:18+09:00",
          "utc": "1989-05-15T07:51:18Z",
          "ms": 611221878243.4175
        },
        "end": {
          "local": "1989-05-16T19:25:47+09:00",
          "utc": "1989-05-16T10:25:47Z",
          "ms": 611317546859.6558
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-15T16:51:18+09:00",
          "utc": "1989-05-15T07:51:18Z",
          "ms": 611221878243.4175
        },
        "end": {
          "local": "1989-05-16T19:25:47+09:00",
          "utc": "1989-05-16T10:25:47Z",
          "ms": 611317546859.6558
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-05-15",
          "window": {
            "start": {
              "local": "1989-05-15T06:17:03+09:00",
              "utc": "1989-05-14T21:17:03Z",
              "ms": 611183822568.568
            },
            "end": {
              "local": "1989-05-15T06:17:03+09:00",
              "utc": "1989-05-14T21:17:03Z",
              "ms": 611183822568.568
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-05-16",
          "window": {
            "start": {
              "local": "1989-05-16T06:16:31+09:00",
              "utc": "1989-05-15T21:16:31Z",
              "ms": 611270191496.5386
            },
            "end": {
              "local": "1989-05-16T06:16:31+09:00",
              "utc": "1989-05-15T21:16:31Z",
              "ms": 611270191496.5386
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 16:51 on Mon 15 May to 19:26 on Tue 16 May.",
          "fact": "1989-05-15T07:51:18Z → 1989-05-16T10:25:47Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:17 on the 15th and 06:17 on the 16th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 15th and is on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 38056 s"
        },
        {
          "step": "ruling",
          "text": "Mohinī Ekādaśī, Fuzhou, 1989: Tuesday 16 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Mohinī Ekādaśī 1989 falls on Tuesday 16 May. Ekādaśī runs from 16:51 on Mon 15 May to 19:26 on Tue 16 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-05-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/parashurama-dvadashi",
      "festival": "parashurama-dvadashi",
      "name": "Paraśurāma Dvādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21753,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1989-05-16T19:25:47+09:00",
          "utc": "1989-05-16T10:25:47Z",
          "ms": 611317546859.6558
        },
        "end": {
          "local": "1989-05-17T21:53:10+09:00",
          "utc": "1989-05-17T12:53:10Z",
          "ms": 611412789541.8842
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-16T19:25:47+09:00",
          "utc": "1989-05-16T10:25:47Z",
          "ms": 611317546859.6558
        },
        "end": {
          "local": "1989-05-17T21:53:10+09:00",
          "utc": "1989-05-17T12:53:10Z",
          "ms": 611412789541.8842
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-05-16",
          "window": {
            "start": {
              "local": "1989-05-16T12:35:14+09:00",
              "utc": "1989-05-16T03:35:14Z",
              "ms": 611292914035.8529
            },
            "end": {
              "local": "1989-05-16T13:23:14+09:00",
              "utc": "1989-05-16T04:23:14Z",
              "ms": 611295794035.8529
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-05-17",
          "window": {
            "start": {
              "local": "1989-05-17T12:35:15+09:00",
              "utc": "1989-05-17T03:35:15Z",
              "ms": 611379315190.4553
            },
            "end": {
              "local": "1989-05-17T13:23:15+09:00",
              "utc": "1989-05-17T04:23:15Z",
              "ms": 611382195190.4553
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 19:26 on Tue 16 May to 21:53 on Wed 17 May.",
          "fact": "1989-05-16T10:25:47Z → 1989-05-17T12:53:10Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 16th, 12:35–13:23 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 21753 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Dvādaśī, Fuzhou, 1989: Wednesday 17 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "parashurama-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Paraśurāma Dvādaśī 1989 falls on Wednesday 17 May. Dvādaśī runs from 19:26 on Tue 16 May to 21:53 on Wed 17 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/parashurama-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/rukmini-dvadashi",
      "festival": "rukmini-dvadashi",
      "name": "Rukmiṇī Dvādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21753,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1989-05-16T19:25:47+09:00",
          "utc": "1989-05-16T10:25:47Z",
          "ms": 611317546859.6558
        },
        "end": {
          "local": "1989-05-17T21:53:10+09:00",
          "utc": "1989-05-17T12:53:10Z",
          "ms": 611412789541.8842
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-16T19:25:47+09:00",
          "utc": "1989-05-16T10:25:47Z",
          "ms": 611317546859.6558
        },
        "end": {
          "local": "1989-05-17T21:53:10+09:00",
          "utc": "1989-05-17T12:53:10Z",
          "ms": 611412789541.8842
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-05-16",
          "window": {
            "start": {
              "local": "1989-05-16T12:35:14+09:00",
              "utc": "1989-05-16T03:35:14Z",
              "ms": 611292914035.8529
            },
            "end": {
              "local": "1989-05-16T13:23:14+09:00",
              "utc": "1989-05-16T04:23:14Z",
              "ms": 611295794035.8529
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-05-17",
          "window": {
            "start": {
              "local": "1989-05-17T12:35:15+09:00",
              "utc": "1989-05-17T03:35:15Z",
              "ms": 611379315190.4553
            },
            "end": {
              "local": "1989-05-17T13:23:15+09:00",
              "utc": "1989-05-17T04:23:15Z",
              "ms": 611382195190.4553
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 19:26 on Tue 16 May to 21:53 on Wed 17 May.",
          "fact": "1989-05-16T10:25:47Z → 1989-05-17T12:53:10Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 16th, 12:35–13:23 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 21753 s"
        },
        {
          "step": "ruling",
          "text": "Rukmiṇī Dvādaśī, Fuzhou, 1989: Wednesday 17 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rukmini-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Rukmiṇī Dvādaśī 1989 falls on Wednesday 17 May. Dvādaśī runs from 19:26 on Tue 16 May to 21:53 on Wed 17 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/rukmini-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-05-18",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2776,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-05-17T21:53:10+09:00",
          "utc": "1989-05-17T12:53:10Z",
          "ms": 611412789541.8842
        },
        "end": {
          "local": "1989-05-19T00:04:03+09:00",
          "utc": "1989-05-18T15:04:03Z",
          "ms": 611507042874.004
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-17T21:53:10+09:00",
          "utc": "1989-05-17T12:53:10Z",
          "ms": 611412789541.8842
        },
        "end": {
          "local": "1989-05-19T00:04:03+09:00",
          "utc": "1989-05-18T15:04:03Z",
          "ms": 611507042874.004
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-05-17",
          "window": {
            "start": {
              "local": "1989-05-17T19:42:29+09:00",
              "utc": "1989-05-17T10:42:29Z",
              "ms": 611404948786.7671
            },
            "end": {
              "local": "1989-05-17T21:06:53+09:00",
              "utc": "1989-05-17T12:06:53Z",
              "ms": 611410013331.8021
            }
          },
          "covered_min": 0,
          "window_min": 84,
          "qualifies": false
        },
        {
          "local_date": "1989-05-18",
          "window": {
            "start": {
              "local": "1989-05-18T19:43:01+09:00",
              "utc": "1989-05-18T10:43:01Z",
              "ms": 611491380901.5433
            },
            "end": {
              "local": "1989-05-18T21:07:17+09:00",
              "utc": "1989-05-18T12:07:17Z",
              "ms": 611496437494.7233
            }
          },
          "covered_min": 84,
          "window_min": 84,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 21:53 on Wed 17 May to 00:04 on Fri 19 May.",
          "fact": "1989-05-17T12:53:10Z → 1989-05-18T15:04:03Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:42–21:07 on the 17th, 19:43–21:07 on the 18th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 17th and 84 of 84 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2776 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Thursday 18 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-18",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Thursday 18 May. Trayodaśī runs from 21:53 on Wed 17 May to 00:04 on Fri 19 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-05-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/nrisimha-chaturdashi",
      "festival": "nrisimha-chaturdashi",
      "name": "Nṛsiṃha Caturdaśī",
      "everyday": "Narasimha Jayanti",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10605,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-05-19T00:04:03+09:00",
          "utc": "1989-05-18T15:04:03Z",
          "ms": 611507042874.004
        },
        "end": {
          "local": "1989-05-20T01:52:38+09:00",
          "utc": "1989-05-19T16:52:38Z",
          "ms": 611599957629.357
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-19T00:04:03+09:00",
          "utc": "1989-05-18T15:04:03Z",
          "ms": 611507042874.004
        },
        "end": {
          "local": "1989-05-20T01:52:38+09:00",
          "utc": "1989-05-19T16:52:38Z",
          "ms": 611599957629.357
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-05-18",
          "window": {
            "start": {
              "local": "1989-05-18T19:43:01+09:00",
              "utc": "1989-05-18T10:43:01Z",
              "ms": 611491380901.5433
            },
            "end": {
              "local": "1989-05-18T21:07:17+09:00",
              "utc": "1989-05-18T12:07:17Z",
              "ms": 611496437494.7233
            }
          },
          "covered_min": 0,
          "window_min": 84,
          "qualifies": false
        },
        {
          "local_date": "1989-05-19",
          "window": {
            "start": {
              "local": "1989-05-19T19:43:33+09:00",
              "utc": "1989-05-19T10:43:33Z",
              "ms": 611577812901.9215
            },
            "end": {
              "local": "1989-05-19T21:07:42+09:00",
              "utc": "1989-05-19T12:07:42Z",
              "ms": 611582861719.5271
            }
          },
          "covered_min": 84,
          "window_min": 84,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 00:04 on Fri 19 May to 01:53 on Sat 20 May.",
          "fact": "1989-05-18T15:04:03Z → 1989-05-19T16:52:38Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:43–21:07 on the 18th, 19:44–21:08 on the 19th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 18th and 84 of 84 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 10605 s"
        },
        {
          "step": "ruling",
          "text": "Nṛsiṃha Caturdaśī, Fuzhou, 1989: Friday 19 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "nrisimha-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 14 Nrsimha caturdasi (pradosa vyapini — if it occurs on two successive days, the second day is to be observed, special when combined with naksatra 'Svati', yoga 'Siddhi' and 'Saturday')."
          }
        ],
        "not_evaluated": "The row calls the day special with Svātī nakṣatra, Siddhi yoga and a Saturday; none is tested.",
        "kaala": "pradosha",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1989 falls on Friday 19 May. Caturdaśī runs from 00:04 on Fri 19 May to 01:53 on Sat 20 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/nrisimha-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/buddha-purnima",
      "festival": "buddha-purnima",
      "name": "Buddha Pūrṇimā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33550,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-05-20T01:52:38+09:00",
          "utc": "1989-05-19T16:52:38Z",
          "ms": 611599957629.357
        },
        "end": {
          "local": "1989-05-21T03:16:15+09:00",
          "utc": "1989-05-20T18:16:15Z",
          "ms": 611691374968.9506
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-20T01:52:38+09:00",
          "utc": "1989-05-19T16:52:38Z",
          "ms": 611599957629.357
        },
        "end": {
          "local": "1989-05-21T03:16:15+09:00",
          "utc": "1989-05-20T18:16:15Z",
          "ms": 611691374968.9506
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-05-20",
          "window": {
            "start": {
              "local": "1989-05-20T12:35:22+09:00",
              "utc": "1989-05-20T03:35:22Z",
              "ms": 611638521901.9286
            },
            "end": {
              "local": "1989-05-20T13:23:22+09:00",
              "utc": "1989-05-20T04:23:22Z",
              "ms": 611641401901.9286
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-05-21",
          "window": {
            "start": {
              "local": "1989-05-21T12:35:25+09:00",
              "utc": "1989-05-21T03:35:25Z",
              "ms": 611724925211.9603
            },
            "end": {
              "local": "1989-05-21T13:23:25+09:00",
              "utc": "1989-05-21T04:23:25Z",
              "ms": 611727805211.9603
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 01:53 on Sat 20 May to 03:16 on Sun 21 May.",
          "fact": "1989-05-19T16:52:38Z → 1989-05-20T18:16:15Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 20th, 12:35–13:23 on the 21st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 33550 s"
        },
        {
          "step": "ruling",
          "text": "Buddha Pūrṇimā, Fuzhou, 1989: Saturday 20 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "buddha-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Buddha Pūrṇimā 1989 falls on Saturday 20 May. Pūrṇimā runs from 01:53 on Sat 20 May to 03:16 on Sun 21 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/buddha-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sampat-gauri-vrata",
      "festival": "sampat-gauri-vrata",
      "name": "Sampat Gaurī Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33550,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-05-20T01:52:38+09:00",
          "utc": "1989-05-19T16:52:38Z",
          "ms": 611599957629.357
        },
        "end": {
          "local": "1989-05-21T03:16:15+09:00",
          "utc": "1989-05-20T18:16:15Z",
          "ms": 611691374968.9506
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-20T01:52:38+09:00",
          "utc": "1989-05-19T16:52:38Z",
          "ms": 611599957629.357
        },
        "end": {
          "local": "1989-05-21T03:16:15+09:00",
          "utc": "1989-05-20T18:16:15Z",
          "ms": 611691374968.9506
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-05-20",
          "window": {
            "start": {
              "local": "1989-05-20T12:35:22+09:00",
              "utc": "1989-05-20T03:35:22Z",
              "ms": 611638521901.9286
            },
            "end": {
              "local": "1989-05-20T13:23:22+09:00",
              "utc": "1989-05-20T04:23:22Z",
              "ms": 611641401901.9286
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-05-21",
          "window": {
            "start": {
              "local": "1989-05-21T12:35:25+09:00",
              "utc": "1989-05-21T03:35:25Z",
              "ms": 611724925211.9603
            },
            "end": {
              "local": "1989-05-21T13:23:25+09:00",
              "utc": "1989-05-21T04:23:25Z",
              "ms": 611727805211.9603
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 01:53 on Sat 20 May to 03:16 on Sun 21 May.",
          "fact": "1989-05-19T16:52:38Z → 1989-05-20T18:16:15Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 20th, 12:35–13:23 on the 21st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 33550 s"
        },
        {
          "step": "ruling",
          "text": "Sampat Gaurī Vrata, Fuzhou, 1989: Saturday 20 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sampat-gauri-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Sampat Gaurī Vrata 1989 falls on Saturday 20 May. Pūrṇimā runs from 01:53 on Sat 20 May to 03:16 on Sun 21 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sampat-gauri-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-05-24",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20026,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-05-24T04:58:39+09:00",
          "utc": "1989-05-23T19:58:39Z",
          "ms": 611956718950.619
        },
        "end": {
          "local": "1989-05-25T04:46:17+09:00",
          "utc": "1989-05-24T19:46:17Z",
          "ms": 612042377421.7194
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-24T04:58:39+09:00",
          "utc": "1989-05-23T19:58:39Z",
          "ms": 611956718950.619
        },
        "end": {
          "local": "1989-05-25T04:46:17+09:00",
          "utc": "1989-05-24T19:46:17Z",
          "ms": 612042377421.7194
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-05-23",
          "window": {
            "start": {
              "local": "1989-05-23T22:22:08+09:00",
              "utc": "1989-05-23T13:22:08Z",
              "ms": 611932927513.492
            },
            "end": {
              "local": "1989-05-23T22:22:08+09:00",
              "utc": "1989-05-23T13:22:08Z",
              "ms": 611932927513.492
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-05-24",
          "window": {
            "start": {
              "local": "1989-05-24T23:12:31+09:00",
              "utc": "1989-05-24T14:12:31Z",
              "ms": 612022351414.2218
            },
            "end": {
              "local": "1989-05-24T23:12:31+09:00",
              "utc": "1989-05-24T14:12:31Z",
              "ms": 612022351414.2218
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:59 on Wed 24 May to 04:46 on Thu 25 May.",
          "fact": "1989-05-23T19:58:39Z → 1989-05-24T19:46:17Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:22 on the 23rd and 23:13 on the 24th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 23rd and is on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 20026 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Wednesday 24 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Wednesday 24 May. Caturthī runs from 04:59 on Wed 24 May to 04:46 on Thu 25 May and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-05-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-05-31",
      "festival": "ekadashi",
      "name": "Aparā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-05-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37497,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-05-30T19:24:01+09:00",
          "utc": "1989-05-30T10:24:01Z",
          "ms": 612527040614.4429
        },
        "end": {
          "local": "1989-05-31T16:36:10+09:00",
          "utc": "1989-05-31T07:36:10Z",
          "ms": 612603369617.7495
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-05-30T19:24:01+09:00",
          "utc": "1989-05-30T10:24:01Z",
          "ms": 612527040614.4429
        },
        "end": {
          "local": "1989-05-31T16:36:10+09:00",
          "utc": "1989-05-31T07:36:10Z",
          "ms": 612603369617.7495
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-05-30",
          "window": {
            "start": {
              "local": "1989-05-30T06:11:25+09:00",
              "utc": "1989-05-29T21:11:25Z",
              "ms": 612479484548.7787
            },
            "end": {
              "local": "1989-05-30T06:11:25+09:00",
              "utc": "1989-05-29T21:11:25Z",
              "ms": 612479484548.7787
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-05-31",
          "window": {
            "start": {
              "local": "1989-05-31T06:11:12+09:00",
              "utc": "1989-05-30T21:11:12Z",
              "ms": 612565872124.0205
            },
            "end": {
              "local": "1989-05-31T06:11:12+09:00",
              "utc": "1989-05-30T21:11:12Z",
              "ms": 612565872124.0205
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 19:24 on Tue 30 May to 16:36 on Wed 31 May.",
          "fact": "1989-05-30T10:24:01Z → 1989-05-31T07:36:10Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:11 on the 30th and 06:11 on the 31st.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 30th and is on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 37497 s"
        },
        {
          "step": "ruling",
          "text": "Aparā Ekādaśī, Fuzhou, 1989: Wednesday 31 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-05-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-05-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Aparā Ekādaśī 1989 falls on Wednesday 31 May. Ekādaśī runs from 19:24 on Tue 30 May to 16:36 on Wed 31 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-05-31",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-06-01",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22381,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-06-01T13:37:08+09:00",
          "utc": "1989-06-01T04:37:08Z",
          "ms": 612679028090.5311
        },
        "end": {
          "local": "1989-06-02T10:34:21+09:00",
          "utc": "1989-06-02T01:34:21Z",
          "ms": 612754460761.9598
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-01T13:37:08+09:00",
          "utc": "1989-06-01T04:37:08Z",
          "ms": 612679028090.5311
        },
        "end": {
          "local": "1989-06-02T10:34:21+09:00",
          "utc": "1989-06-02T01:34:21Z",
          "ms": 612754460761.9598
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-06-01",
          "window": {
            "start": {
              "local": "1989-06-01T19:50:09+09:00",
              "utc": "1989-06-01T10:50:09Z",
              "ms": 612701409210.4319
            },
            "end": {
              "local": "1989-06-01T21:12:55+09:00",
              "utc": "1989-06-01T12:12:55Z",
              "ms": 612706374798.436
            }
          },
          "covered_min": 83,
          "window_min": 83,
          "qualifies": true
        },
        {
          "local_date": "1989-06-02",
          "window": {
            "start": {
              "local": "1989-06-02T19:50:37+09:00",
              "utc": "1989-06-02T10:50:37Z",
              "ms": 612787837311.4158
            },
            "end": {
              "local": "1989-06-02T21:13:18+09:00",
              "utc": "1989-06-02T12:13:18Z",
              "ms": 612792798006.8553
            }
          },
          "covered_min": 0,
          "window_min": 83,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 13:37 on Thu 1 Jun to 10:34 on Fri 2 Jun.",
          "fact": "1989-06-01T04:37:08Z → 1989-06-02T01:34:21Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:50–21:13 on the 1st, 19:51–21:13 on the 2nd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 1st and 0 of 83 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 22381 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Thursday 1 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Thursday 1 June. Trayodaśī runs from 13:37 on Thu 1 Jun to 10:34 on Fri 2 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-06-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-06-02",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22306,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-06-02T10:34:21+09:00",
          "utc": "1989-06-02T01:34:21Z",
          "ms": 612754460761.9598
        },
        "end": {
          "local": "1989-06-03T07:36:26+09:00",
          "utc": "1989-06-02T22:36:26Z",
          "ms": 612830185562.0568
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-02T10:34:21+09:00",
          "utc": "1989-06-02T01:34:21Z",
          "ms": 612754460761.9598
        },
        "end": {
          "local": "1989-06-03T07:36:26+09:00",
          "utc": "1989-06-02T22:36:26Z",
          "ms": 612830185562.0568
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-06-01",
          "window": {
            "start": {
              "local": "1989-06-02T00:36:30+09:00",
              "utc": "1989-06-01T15:36:30Z",
              "ms": 612718590165.4475
            },
            "end": {
              "local": "1989-06-02T01:24:30+09:00",
              "utc": "1989-06-01T16:24:30Z",
              "ms": 612721470165.4475
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-06-02",
          "window": {
            "start": {
              "local": "1989-06-03T00:36:40+09:00",
              "utc": "1989-06-02T15:36:40Z",
              "ms": 612804999919.3145
            },
            "end": {
              "local": "1989-06-03T01:24:40+09:00",
              "utc": "1989-06-02T16:24:40Z",
              "ms": 612807879919.3145
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 10:34 on Fri 2 Jun to 07:36 on Sat 3 Jun.",
          "fact": "1989-06-02T01:34:21Z → 1989-06-02T22:36:26Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:37–01:25 on the 1st, 00:37–01:25 on the 2nd.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 22306 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Friday 2 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Friday 2 June. Caturdaśī runs from 10:34 on Fri 2 Jun to 07:36 on Sat 3 Jun and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-06-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/rambha-tritiya",
      "festival": "rambha-tritiya",
      "name": "Rambhā Tṛtīyā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36891,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1989-06-06T00:46:15+09:00",
          "utc": "1989-06-05T15:46:15Z",
          "ms": 613064774826.5581
        },
        "end": {
          "local": "1989-06-06T23:40:16+09:00",
          "utc": "1989-06-06T14:40:16Z",
          "ms": 613147215728.9318
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-06T00:46:15+09:00",
          "utc": "1989-06-05T15:46:15Z",
          "ms": 613064774826.5581
        },
        "end": {
          "local": "1989-06-06T23:40:16+09:00",
          "utc": "1989-06-06T14:40:16Z",
          "ms": 613147215728.9318
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-06-05",
          "window": {
            "start": {
              "local": "1989-06-05T12:37:14+09:00",
              "utc": "1989-06-05T03:37:14Z",
              "ms": 613021033813.231
            },
            "end": {
              "local": "1989-06-05T13:25:14+09:00",
              "utc": "1989-06-05T04:25:14Z",
              "ms": 613023913813.231
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-06-06",
          "window": {
            "start": {
              "local": "1989-06-06T12:37:24+09:00",
              "utc": "1989-06-06T03:37:24Z",
              "ms": 613107444347.5654
            },
            "end": {
              "local": "1989-06-06T13:25:24+09:00",
              "utc": "1989-06-06T04:25:24Z",
              "ms": 613110324347.5654
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 00:46 on Tue 6 Jun to 23:40 on Tue 6 Jun.",
          "fact": "1989-06-05T15:46:15Z → 1989-06-06T14:40:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 5th, 12:37–13:25 on the 6th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 36891 s"
        },
        {
          "step": "ruling",
          "text": "Rambhā Tṛtīyā, Fuzhou, 1989: Tuesday 6 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rambha-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Rambha trtiya (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Rambhā Tṛtīyā 1989 falls on Tuesday 6 June. Tṛtīyā runs from 00:46 on Tue 6 Jun to 23:40 on Tue 6 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/rambha-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-06-07",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35689,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-06-06T23:40:16+09:00",
          "utc": "1989-06-06T14:40:16Z",
          "ms": 613147215728.9318
        },
        "end": {
          "local": "1989-06-07T23:20:24+09:00",
          "utc": "1989-06-07T14:20:24Z",
          "ms": 613232424278.2065
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-06T23:40:16+09:00",
          "utc": "1989-06-06T14:40:16Z",
          "ms": 613147215728.9318
        },
        "end": {
          "local": "1989-06-07T23:20:24+09:00",
          "utc": "1989-06-07T14:20:24Z",
          "ms": 613232424278.2065
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-06-06",
          "window": {
            "start": {
              "local": "1989-06-06T12:37:24+09:00",
              "utc": "1989-06-06T03:37:24Z",
              "ms": 613107444347.5654
            },
            "end": {
              "local": "1989-06-06T13:25:24+09:00",
              "utc": "1989-06-06T04:25:24Z",
              "ms": 613110324347.5654
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-06-07",
          "window": {
            "start": {
              "local": "1989-06-07T12:37:35+09:00",
              "utc": "1989-06-07T03:37:35Z",
              "ms": 613193855176.8652
            },
            "end": {
              "local": "1989-06-07T13:25:35+09:00",
              "utc": "1989-06-07T04:25:35Z",
              "ms": 613196735176.8652
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 23:40 on Tue 6 Jun to 23:20 on Wed 7 Jun.",
          "fact": "1989-06-06T14:40:16Z → 1989-06-07T14:20:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 6th, 12:38–13:26 on the 7th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 35689 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Wednesday 7 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Wednesday 7 June. Caturthī runs from 23:40 on Tue 6 Jun to 23:20 on Wed 7 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-06-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/aranya-gauri-vrata",
      "festival": "aranya-gauri-vrata",
      "name": "Araṇya Gaurī Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37363,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1989-06-08T23:48:29+09:00",
          "utc": "1989-06-08T14:48:29Z",
          "ms": 613320508931.6101
        },
        "end": {
          "local": "1989-06-10T01:01:48+09:00",
          "utc": "1989-06-09T16:01:48Z",
          "ms": 613411308413.971
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-08T23:48:29+09:00",
          "utc": "1989-06-08T14:48:29Z",
          "ms": 613320508931.6101
        },
        "end": {
          "local": "1989-06-10T01:01:48+09:00",
          "utc": "1989-06-09T16:01:48Z",
          "ms": 613411308413.971
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-06-08",
          "window": {
            "start": {
              "local": "1989-06-08T12:37:46+09:00",
              "utc": "1989-06-08T03:37:46Z",
              "ms": 613280266278.1448
            },
            "end": {
              "local": "1989-06-08T13:25:46+09:00",
              "utc": "1989-06-08T04:25:46Z",
              "ms": 613283146278.1448
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-06-09",
          "window": {
            "start": {
              "local": "1989-06-09T12:37:58+09:00",
              "utc": "1989-06-09T03:37:58Z",
              "ms": 613366677628.9419
            },
            "end": {
              "local": "1989-06-09T13:25:58+09:00",
              "utc": "1989-06-09T04:25:58Z",
              "ms": 613369557628.9419
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 23:48 on Thu 8 Jun to 01:02 on Sat 10 Jun.",
          "fact": "1989-06-08T14:48:29Z → 1989-06-09T16:01:48Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 8th, 12:38–13:26 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 37363 s"
        },
        {
          "step": "ruling",
          "text": "Araṇya Gaurī Vrata, Fuzhou, 1989: Friday 9 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "aranya-gauri-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Araṇya Gaurī Vrata 1989 falls on Friday 9 June. Ṣaṣṭhī runs from 23:48 on Thu 8 Jun to 01:02 on Sat 10 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/aranya-gauri-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/skanda-shashthi-jyaishtha",
      "festival": "skanda-shashthi-jyaishtha",
      "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37363,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1989-06-08T23:48:29+09:00",
          "utc": "1989-06-08T14:48:29Z",
          "ms": 613320508931.6101
        },
        "end": {
          "local": "1989-06-10T01:01:48+09:00",
          "utc": "1989-06-09T16:01:48Z",
          "ms": 613411308413.971
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-08T23:48:29+09:00",
          "utc": "1989-06-08T14:48:29Z",
          "ms": 613320508931.6101
        },
        "end": {
          "local": "1989-06-10T01:01:48+09:00",
          "utc": "1989-06-09T16:01:48Z",
          "ms": 613411308413.971
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-06-08",
          "window": {
            "start": {
              "local": "1989-06-08T12:37:46+09:00",
              "utc": "1989-06-08T03:37:46Z",
              "ms": 613280266278.1448
            },
            "end": {
              "local": "1989-06-08T13:25:46+09:00",
              "utc": "1989-06-08T04:25:46Z",
              "ms": 613283146278.1448
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-06-09",
          "window": {
            "start": {
              "local": "1989-06-09T12:37:58+09:00",
              "utc": "1989-06-09T03:37:58Z",
              "ms": 613366677628.9419
            },
            "end": {
              "local": "1989-06-09T13:25:58+09:00",
              "utc": "1989-06-09T04:25:58Z",
              "ms": 613369557628.9419
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 23:48 on Thu 8 Jun to 01:02 on Sat 10 Jun.",
          "fact": "1989-06-08T14:48:29Z → 1989-06-09T16:01:48Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 8th, 12:38–13:26 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 37363 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Fuzhou, 1989: Friday 9 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "skanda-shashthi-jyaishtha",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1989 falls on Friday 9 June. Ṣaṣṭhī runs from 23:48 on Thu 8 Jun to 01:02 on Sat 10 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/skanda-shashthi-jyaishtha",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-06-15",
      "festival": "ekadashi",
      "name": "Nirjalā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13932,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-06-14T10:02:40+09:00",
          "utc": "1989-06-14T01:02:40Z",
          "ms": 613789360062.0369
        },
        "end": {
          "local": "1989-06-15T12:11:14+09:00",
          "utc": "1989-06-15T03:11:14Z",
          "ms": 613883473537.0645
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-14T10:02:40+09:00",
          "utc": "1989-06-14T01:02:40Z",
          "ms": 613789360062.0369
        },
        "end": {
          "local": "1989-06-15T12:11:14+09:00",
          "utc": "1989-06-15T03:11:14Z",
          "ms": 613883473537.0645
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-06-14",
          "window": {
            "start": {
              "local": "1989-06-14T06:10:28+09:00",
              "utc": "1989-06-13T21:10:28Z",
              "ms": 613775428354.1327
            },
            "end": {
              "local": "1989-06-14T06:10:28+09:00",
              "utc": "1989-06-13T21:10:28Z",
              "ms": 613775428354.1327
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-06-15",
          "window": {
            "start": {
              "local": "1989-06-15T06:10:34+09:00",
              "utc": "1989-06-14T21:10:34Z",
              "ms": 613861834016.438
            },
            "end": {
              "local": "1989-06-15T06:10:34+09:00",
              "utc": "1989-06-14T21:10:34Z",
              "ms": 613861834016.438
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 10:03 on Wed 14 Jun to 12:11 on Thu 15 Jun.",
          "fact": "1989-06-14T01:02:40Z → 1989-06-15T03:11:14Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:10 on the 14th and 06:11 on the 15th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 14th and is on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 13932 s"
        },
        {
          "step": "ruling",
          "text": "Nirjalā Ekādaśī, Fuzhou, 1989: Thursday 15 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Nirjalā Ekādaśī 1989 falls on Thursday 15 June. Ekādaśī runs from 10:03 on Wed 14 Jun to 12:11 on Thu 15 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-06-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shri-rama-dvadashi",
      "festival": "shri-rama-dvadashi",
      "name": "Śrī Rāma Dvādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1618,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1989-06-15T12:11:14+09:00",
          "utc": "1989-06-15T03:11:14Z",
          "ms": 613883473537.0645
        },
        "end": {
          "local": "1989-06-16T13:54:21+09:00",
          "utc": "1989-06-16T04:54:21Z",
          "ms": 613976060682.0424
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-15T12:11:14+09:00",
          "utc": "1989-06-15T03:11:14Z",
          "ms": 613883473537.0645
        },
        "end": {
          "local": "1989-06-16T13:54:21+09:00",
          "utc": "1989-06-16T04:54:21Z",
          "ms": 613976060682.0424
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-06-15",
          "window": {
            "start": {
              "local": "1989-06-15T12:39:10+09:00",
              "utc": "1989-06-15T03:39:10Z",
              "ms": 613885149760.4355
            },
            "end": {
              "local": "1989-06-15T13:27:10+09:00",
              "utc": "1989-06-15T04:27:10Z",
              "ms": 613888029760.4355
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-06-16",
          "window": {
            "start": {
              "local": "1989-06-16T12:39:22+09:00",
              "utc": "1989-06-16T03:39:22Z",
              "ms": 613971562256.2764
            },
            "end": {
              "local": "1989-06-16T13:27:22+09:00",
              "utc": "1989-06-16T04:27:22Z",
              "ms": 613974442256.2764
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 12:11 on Thu 15 Jun to 13:54 on Fri 16 Jun.",
          "fact": "1989-06-15T03:11:14Z → 1989-06-16T04:54:21Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 15th, 12:39–13:27 on the 16th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 48 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 1618 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Rāma Dvādaśī, Fuzhou, 1989: Thursday 15 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shri-rama-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śrī Rāma Dvādaśī 1989 falls on Thursday 15 June. Dvādaśī runs from 12:11 on Thu 15 Jun to 13:54 on Fri 16 Jun and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shri-rama-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-06-16",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17367,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-06-16T13:54:21+09:00",
          "utc": "1989-06-16T04:54:21Z",
          "ms": 613976060682.0424
        },
        "end": {
          "local": "1989-06-17T15:06:54+09:00",
          "utc": "1989-06-17T06:06:54Z",
          "ms": 614066813707.1285
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-16T13:54:21+09:00",
          "utc": "1989-06-16T04:54:21Z",
          "ms": 613976060682.0424
        },
        "end": {
          "local": "1989-06-17T15:06:54+09:00",
          "utc": "1989-06-17T06:06:54Z",
          "ms": 614066813707.1285
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-06-16",
          "window": {
            "start": {
              "local": "1989-06-16T19:56:04+09:00",
              "utc": "1989-06-16T10:56:04Z",
              "ms": 613997763741.277
            },
            "end": {
              "local": "1989-06-16T21:18:02+09:00",
              "utc": "1989-06-16T12:18:02Z",
              "ms": 614002681722.662
            }
          },
          "covered_min": 82,
          "window_min": 82,
          "qualifies": true
        },
        {
          "local_date": "1989-06-17",
          "window": {
            "start": {
              "local": "1989-06-17T19:56:21+09:00",
              "utc": "1989-06-17T10:56:21Z",
              "ms": 614084181063.3048
            },
            "end": {
              "local": "1989-06-17T21:18:18+09:00",
              "utc": "1989-06-17T12:18:18Z",
              "ms": 614089097920.229
            }
          },
          "covered_min": 0,
          "window_min": 82,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 13:54 on Fri 16 Jun to 15:07 on Sat 17 Jun.",
          "fact": "1989-06-16T04:54:21Z → 1989-06-17T06:06:54Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:56–21:18 on the 16th, 19:56–21:18 on the 17th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 16th and 0 of 82 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 17367 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Friday 16 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Friday 16 June. Trayodaśī runs from 13:54 on Fri 16 Jun to 15:07 on Sat 17 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-06-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vata-savitri-vrata",
      "festival": "vata-savitri-vrata",
      "name": "Vaṭa Sāvitrī Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14374,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-06-18T15:47:26+09:00",
          "utc": "1989-06-18T06:47:26Z",
          "ms": 614155646471.2556
        },
        "end": {
          "local": "1989-06-19T15:57:19+09:00",
          "utc": "1989-06-19T06:57:19Z",
          "ms": 614242638551.55
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-18T15:47:26+09:00",
          "utc": "1989-06-18T06:47:26Z",
          "ms": 614155646471.2556
        },
        "end": {
          "local": "1989-06-19T15:57:19+09:00",
          "utc": "1989-06-19T06:57:19Z",
          "ms": 614242638551.55
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-06-18",
          "window": {
            "start": {
              "local": "1989-06-18T19:56:37+09:00",
              "utc": "1989-06-18T10:56:37Z",
              "ms": 614170597447.8036
            },
            "end": {
              "local": "1989-06-18T21:18:33+09:00",
              "utc": "1989-06-18T12:18:33Z",
              "ms": 614175513444.0029
            }
          },
          "covered_min": 82,
          "window_min": 82,
          "qualifies": true
        },
        {
          "local_date": "1989-06-19",
          "window": {
            "start": {
              "local": "1989-06-19T19:56:53+09:00",
              "utc": "1989-06-19T10:56:53Z",
              "ms": 614257012872.9585
            },
            "end": {
              "local": "1989-06-19T21:18:48+09:00",
              "utc": "1989-06-19T12:18:48Z",
              "ms": 614261928272.6804
            }
          },
          "covered_min": 0,
          "window_min": 82,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 15:47 on Sun 18 Jun to 15:57 on Mon 19 Jun.",
          "fact": "1989-06-18T06:47:26Z → 1989-06-19T06:57:19Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:57–21:19 on the 18th, 19:57–21:19 on the 19th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 82 of 82 minutes on the 18th and 0 of 82 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 14374 s"
        },
        {
          "step": "ruling",
          "text": "Vaṭa Sāvitrī Vrata, Fuzhou, 1989: Sunday 18 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vata-savitri-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Vata-savitri vrata (Deccan) (pradosavyapini, purvaviddha), Snanayatra (Bengal & Orissa) (paraviddha)."
          }
        ],
        "kaala": "pradosha",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vaṭa Sāvitrī Vrata 1989 falls on Sunday 18 June. Pūrṇimā runs from 15:47 on Sun 18 Jun to 15:57 on Mon 19 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vata-savitri-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-06-22",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31364,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-06-22T13:55:25+09:00",
          "utc": "1989-06-22T04:55:25Z",
          "ms": 614494525430.237
        },
        "end": {
          "local": "1989-06-23T12:35:48+09:00",
          "utc": "1989-06-23T03:35:48Z",
          "ms": 614576147750.2372
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-22T13:55:25+09:00",
          "utc": "1989-06-22T04:55:25Z",
          "ms": 614494525430.237
        },
        "end": {
          "local": "1989-06-23T12:35:48+09:00",
          "utc": "1989-06-23T03:35:48Z",
          "ms": 614576147750.2372
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-06-22",
          "window": {
            "start": {
              "local": "1989-06-22T22:38:10+09:00",
              "utc": "1989-06-22T13:38:10Z",
              "ms": 614525889755.0667
            },
            "end": {
              "local": "1989-06-22T22:38:10+09:00",
              "utc": "1989-06-22T13:38:10Z",
              "ms": 614525889755.0667
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-06-23",
          "window": {
            "start": {
              "local": "1989-06-23T23:16:19+09:00",
              "utc": "1989-06-23T14:16:19Z",
              "ms": 614614578616.3167
            },
            "end": {
              "local": "1989-06-23T23:16:19+09:00",
              "utc": "1989-06-23T14:16:19Z",
              "ms": 614614578616.3167
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:55 on Thu 22 Jun to 12:36 on Fri 23 Jun.",
          "fact": "1989-06-22T04:55:25Z → 1989-06-23T03:35:48Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:38 on the 22nd and 23:16 on the 23rd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 22nd and is not on the 23rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 31364 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Thursday 22 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Thursday 22 June. Caturthī runs from 13:55 on Thu 22 Jun to 12:36 on Fri 23 Jun and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-06-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-06-29",
      "festival": "ekadashi",
      "name": "Yoginī Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21271,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-06-29T00:19:09+09:00",
          "utc": "1989-06-28T15:19:09Z",
          "ms": 615050348532.9965
        },
        "end": {
          "local": "1989-06-29T21:53:37+09:00",
          "utc": "1989-06-29T12:53:37Z",
          "ms": 615128016790.7767
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-29T00:19:09+09:00",
          "utc": "1989-06-28T15:19:09Z",
          "ms": 615050348532.9965
        },
        "end": {
          "local": "1989-06-29T21:53:37+09:00",
          "utc": "1989-06-29T12:53:37Z",
          "ms": 615128016790.7767
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-06-29",
          "window": {
            "start": {
              "local": "1989-06-29T06:13:40+09:00",
              "utc": "1989-06-28T21:13:40Z",
              "ms": 615071619707.4153
            },
            "end": {
              "local": "1989-06-29T06:13:40+09:00",
              "utc": "1989-06-28T21:13:40Z",
              "ms": 615071619707.4153
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-06-30",
          "window": {
            "start": {
              "local": "1989-06-30T06:14:00+09:00",
              "utc": "1989-06-29T21:14:00Z",
              "ms": 615158039738.0607
            },
            "end": {
              "local": "1989-06-30T06:14:00+09:00",
              "utc": "1989-06-29T21:14:00Z",
              "ms": 615158039738.0607
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:19 on Thu 29 Jun to 21:54 on Thu 29 Jun.",
          "fact": "1989-06-28T15:19:09Z → 1989-06-29T12:53:37Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:14 on the 29th and 06:14 on the 30th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 21271 s"
        },
        {
          "step": "ruling",
          "text": "Yoginī Ekādaśī, Fuzhou, 1989: Thursday 29 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Yoginī Ekādaśī 1989 falls on Thursday 29 June. Ekādaśī runs from 00:19 on Thu 29 Jun to 21:54 on Thu 29 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-06-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-06-30",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-06-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1581,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-06-30T19:32:13+09:00",
          "utc": "1989-06-30T10:32:13Z",
          "ms": 615205932710.9941
        },
        "end": {
          "local": "1989-07-01T17:21:16+09:00",
          "utc": "1989-07-01T08:21:16Z",
          "ms": 615284476440.8765
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-06-30T19:32:13+09:00",
          "utc": "1989-06-30T10:32:13Z",
          "ms": 615205932710.9941
        },
        "end": {
          "local": "1989-07-01T17:21:16+09:00",
          "utc": "1989-07-01T08:21:16Z",
          "ms": 615284476440.8765
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-06-30",
          "window": {
            "start": {
              "local": "1989-06-30T19:58:34+09:00",
              "utc": "1989-06-30T10:58:34Z",
              "ms": 615207513507.8225
            },
            "end": {
              "local": "1989-06-30T21:20:40+09:00",
              "utc": "1989-06-30T12:20:40Z",
              "ms": 615212439777.3187
            }
          },
          "covered_min": 82,
          "window_min": 82,
          "qualifies": true
        },
        {
          "local_date": "1989-07-01",
          "window": {
            "start": {
              "local": "1989-07-01T19:58:36+09:00",
              "utc": "1989-07-01T10:58:36Z",
              "ms": 615293915879.0181
            },
            "end": {
              "local": "1989-07-01T21:20:45+09:00",
              "utc": "1989-07-01T12:20:45Z",
              "ms": 615298844701.3098
            }
          },
          "covered_min": 0,
          "window_min": 82,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:32 on Fri 30 Jun to 17:21 on Sat 1 Jul.",
          "fact": "1989-06-30T10:32:13Z → 1989-07-01T08:21:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:59–21:21 on the 30th, 19:59–21:21 on the 1st.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 30th and 0 of 82 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 1581 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Friday 30 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-06-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-06-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Friday 30 June. Trayodaśī runs from 19:32 on Fri 30 Jun to 17:21 on Sat 1 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-06-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-07-01",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26483,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-07-01T17:21:16+09:00",
          "utc": "1989-07-01T08:21:16Z",
          "ms": 615284476440.8765
        },
        "end": {
          "local": "1989-07-02T15:27:49+09:00",
          "utc": "1989-07-02T06:27:49Z",
          "ms": 615364068851.9038
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-01T17:21:16+09:00",
          "utc": "1989-07-01T08:21:16Z",
          "ms": 615284476440.8765
        },
        "end": {
          "local": "1989-07-02T15:27:49+09:00",
          "utc": "1989-07-02T06:27:49Z",
          "ms": 615364068851.9038
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-07-01",
          "window": {
            "start": {
              "local": "1989-07-02T00:42:39+09:00",
              "utc": "1989-07-01T15:42:39Z",
              "ms": 615310958962.612
            },
            "end": {
              "local": "1989-07-02T01:30:39+09:00",
              "utc": "1989-07-01T16:30:39Z",
              "ms": 615313838962.612
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-07-02",
          "window": {
            "start": {
              "local": "1989-07-03T00:42:51+09:00",
              "utc": "1989-07-02T15:42:51Z",
              "ms": 615397370646.5952
            },
            "end": {
              "local": "1989-07-03T01:30:51+09:00",
              "utc": "1989-07-02T16:30:51Z",
              "ms": 615400250646.5952
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 17:21 on Sat 1 Jul to 15:28 on Sun 2 Jul.",
          "fact": "1989-07-01T08:21:16Z → 1989-07-02T06:27:49Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:43–01:31 on the 1st, 00:43–01:31 on the 2nd.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 26483 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Saturday 1 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Saturday 1 July. Caturdaśī runs from 17:21 on Sat 1 Jul to 15:28 on Sun 2 Jul and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-07-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/rathayatra",
      "festival": "rathayatra",
      "name": "Rathayātrā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-04",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 107,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1989-07-04T13:01:44+09:00",
          "utc": "1989-07-04T04:01:44Z",
          "ms": 615528104228.4077
        },
        "end": {
          "local": "1989-07-05T12:41:25+09:00",
          "utc": "1989-07-05T03:41:25Z",
          "ms": 615613284509.7125
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-04T13:01:44+09:00",
          "utc": "1989-07-04T04:01:44Z",
          "ms": 615528104228.4077
        },
        "end": {
          "local": "1989-07-05T12:41:25+09:00",
          "utc": "1989-07-05T03:41:25Z",
          "ms": 615613284509.7125
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-07-04",
          "window": {
            "start": {
              "local": "1989-07-04T12:43:01+09:00",
              "utc": "1989-07-04T03:43:01Z",
              "ms": 615526981385.3203
            },
            "end": {
              "local": "1989-07-04T13:31:01+09:00",
              "utc": "1989-07-04T04:31:01Z",
              "ms": 615529861385.3203
            }
          },
          "covered_min": 29,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-07-05",
          "window": {
            "start": {
              "local": "1989-07-05T12:43:12+09:00",
              "utc": "1989-07-05T03:43:12Z",
              "ms": 615613391839.239
            },
            "end": {
              "local": "1989-07-05T13:31:12+09:00",
              "utc": "1989-07-05T04:31:12Z",
              "ms": 615616271839.239
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 13:02 on Tue 4 Jul to 12:41 on Wed 5 Jul.",
          "fact": "1989-07-04T04:01:44Z → 1989-07-05T03:41:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 4th, 12:43–13:31 on the 5th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be present during madhyāhna. It covers 29 of 48 minutes on the 4th and 0 of 48 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 107 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Rathayātrā, Fuzhou, 1989: Tuesday 4 July.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rathayatra",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')"
          }
        ],
        "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.",
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-04",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Rathayātrā 1989 falls on Tuesday 4 July. Dvitīyā runs from 13:02 on Tue 4 Jul to 12:41 on Wed 5 Jul and covers 29 of 48 minutes of madhyāhna that midday. It is 1 min 47 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/rathayatra",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-07-07",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-07",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1081,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-07-06T13:01:23+09:00",
          "utc": "1989-07-06T04:01:23Z",
          "ms": 615700882662.5845
        },
        "end": {
          "local": "1989-07-07T14:01:47+09:00",
          "utc": "1989-07-07T05:01:47Z",
          "ms": 615790906574.5964
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-06T13:01:23+09:00",
          "utc": "1989-07-06T04:01:23Z",
          "ms": 615700882662.5845
        },
        "end": {
          "local": "1989-07-07T14:01:47+09:00",
          "utc": "1989-07-07T05:01:47Z",
          "ms": 615790906574.5964
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-07-06",
          "window": {
            "start": {
              "local": "1989-07-06T12:43:22+09:00",
              "utc": "1989-07-06T03:43:22Z",
              "ms": 615699801949.3068
            },
            "end": {
              "local": "1989-07-06T13:31:22+09:00",
              "utc": "1989-07-06T04:31:22Z",
              "ms": 615702681949.3068
            }
          },
          "covered_min": 30,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-07-07",
          "window": {
            "start": {
              "local": "1989-07-07T12:43:32+09:00",
              "utc": "1989-07-07T03:43:32Z",
              "ms": 615786211693.1028
            },
            "end": {
              "local": "1989-07-07T13:31:32+09:00",
              "utc": "1989-07-07T04:31:32Z",
              "ms": 615789091693.1028
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:01 on Thu 6 Jul to 14:02 on Fri 7 Jul.",
          "fact": "1989-07-06T04:01:23Z → 1989-07-07T05:01:47Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 6th, 12:44–13:32 on the 7th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 30 of 48 minutes on the 6th and 48 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 1081 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Friday 7 July.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-07",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-07",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Friday 7 July. Caturthī runs from 13:01 on Thu 6 Jul to 14:02 on Fri 7 Jul and covers all of madhyāhna that midday. It also reaches the previous midday for 30 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-07-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/skanda-panchami",
      "festival": "skanda-panchami",
      "name": "Skanda Pañcamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1815,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1989-07-07T14:01:47+09:00",
          "utc": "1989-07-07T05:01:47Z",
          "ms": 615790906574.5964
        },
        "end": {
          "local": "1989-07-08T15:38:45+09:00",
          "utc": "1989-07-08T06:38:45Z",
          "ms": 615883124830.8118
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-07T14:01:47+09:00",
          "utc": "1989-07-07T05:01:47Z",
          "ms": 615790906574.5964
        },
        "end": {
          "local": "1989-07-08T15:38:45+09:00",
          "utc": "1989-07-08T06:38:45Z",
          "ms": 615883124830.8118
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-07-07",
          "window": {
            "start": {
              "local": "1989-07-07T12:43:32+09:00",
              "utc": "1989-07-07T03:43:32Z",
              "ms": 615786211693.1028
            },
            "end": {
              "local": "1989-07-07T13:31:32+09:00",
              "utc": "1989-07-07T04:31:32Z",
              "ms": 615789091693.1028
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-07-08",
          "window": {
            "start": {
              "local": "1989-07-08T12:43:41+09:00",
              "utc": "1989-07-08T03:43:41Z",
              "ms": 615872621049.6041
            },
            "end": {
              "local": "1989-07-08T13:31:41+09:00",
              "utc": "1989-07-08T04:31:41Z",
              "ms": 615875501049.6041
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 14:02 on Fri 7 Jul to 15:39 on Sat 8 Jul.",
          "fact": "1989-07-07T05:01:47Z → 1989-07-08T06:38:45Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:44–13:32 on the 7th, 12:44–13:32 on the 8th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 1815 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Pañcamī, Fuzhou, 1989: Saturday 8 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "skanda-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Skanda pancami (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Skanda Pañcamī 1989 falls on Saturday 8 July. Pañcamī runs from 14:02 on Fri 7 Jul to 15:39 on Sat 8 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/skanda-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vivasvat-saptami",
      "festival": "vivasvat-saptami",
      "name": "Vivasvat Saptamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15139,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1989-07-09T17:44:09+09:00",
          "utc": "1989-07-09T08:44:09Z",
          "ms": 615977049441.2665
        },
        "end": {
          "local": "1989-07-10T20:06:08+09:00",
          "utc": "1989-07-10T11:06:08Z",
          "ms": 616071968480.7548
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-09T17:44:09+09:00",
          "utc": "1989-07-09T08:44:09Z",
          "ms": 615977049441.2665
        },
        "end": {
          "local": "1989-07-10T20:06:08+09:00",
          "utc": "1989-07-10T11:06:08Z",
          "ms": 616071968480.7548
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-07-09",
          "window": {
            "start": {
              "local": "1989-07-09T12:43:50+09:00",
              "utc": "1989-07-09T03:43:50Z",
              "ms": 615959029999.147
            },
            "end": {
              "local": "1989-07-09T13:31:50+09:00",
              "utc": "1989-07-09T04:31:50Z",
              "ms": 615961909999.147
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-07-10",
          "window": {
            "start": {
              "local": "1989-07-10T12:43:59+09:00",
              "utc": "1989-07-10T03:43:59Z",
              "ms": 616045438523.3643
            },
            "end": {
              "local": "1989-07-10T13:31:59+09:00",
              "utc": "1989-07-10T04:31:59Z",
              "ms": 616048318523.3643
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 17:44 on Sun 9 Jul to 20:06 on Mon 10 Jul.",
          "fact": "1989-07-09T08:44:09Z → 1989-07-10T11:06:08Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:44–13:32 on the 9th, 12:44–13:32 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 15139 s"
        },
        {
          "step": "ruling",
          "text": "Vivasvat Saptamī, Fuzhou, 1989: Monday 10 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vivasvat-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Vivasvat saptami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vivasvat Saptamī 1989 falls on Monday 10 July. Saptamī runs from 17:44 on Sun 9 Jul to 20:06 on Mon 10 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vivasvat-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-07-14",
      "festival": "ekadashi",
      "name": "Hariśayanī Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9169,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-07-14T02:31:43+09:00",
          "utc": "1989-07-13T17:31:43Z",
          "ms": 616354302967.253
        },
        "end": {
          "local": "1989-07-15T03:47:24+09:00",
          "utc": "1989-07-14T18:47:24Z",
          "ms": 616445243709.8636
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-14T02:31:43+09:00",
          "utc": "1989-07-13T17:31:43Z",
          "ms": 616354302967.253
        },
        "end": {
          "local": "1989-07-15T03:47:24+09:00",
          "utc": "1989-07-14T18:47:24Z",
          "ms": 616445243709.8636
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-07-14",
          "window": {
            "start": {
              "local": "1989-07-14T06:19:45+09:00",
              "utc": "1989-07-13T21:19:45Z",
              "ms": 616367984611.5673
            },
            "end": {
              "local": "1989-07-14T06:19:45+09:00",
              "utc": "1989-07-13T21:19:45Z",
              "ms": 616367984611.5673
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-07-15",
          "window": {
            "start": {
              "local": "1989-07-15T06:20:13+09:00",
              "utc": "1989-07-14T21:20:13Z",
              "ms": 616454412571.2416
            },
            "end": {
              "local": "1989-07-15T06:20:13+09:00",
              "utc": "1989-07-14T21:20:13Z",
              "ms": 616454412571.2416
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 02:32 on Fri 14 Jul to 03:47 on Sat 15 Jul.",
          "fact": "1989-07-13T17:31:43Z → 1989-07-14T18:47:24Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:20 on the 14th and 06:20 on the 15th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 14th and is not on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 9169 s"
        },
        {
          "step": "ruling",
          "text": "Hariśayanī Ekādaśī, Fuzhou, 1989: Friday 14 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Hariśayanī Ekādaśī 1989 falls on Friday 14 July. Ekādaśī runs from 02:32 on Fri 14 Jul to 03:47 on Sat 15 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-07-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-07-16",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25530,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-07-16T04:25:35+09:00",
          "utc": "1989-07-15T19:25:35Z",
          "ms": 616533935357.029
        },
        "end": {
          "local": "1989-07-17T04:25:30+09:00",
          "utc": "1989-07-16T19:25:30Z",
          "ms": 616620330447.5154
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-16T04:25:35+09:00",
          "utc": "1989-07-15T19:25:35Z",
          "ms": 616533935357.029
        },
        "end": {
          "local": "1989-07-17T04:25:30+09:00",
          "utc": "1989-07-16T19:25:30Z",
          "ms": 616620330447.5154
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-07-15",
          "window": {
            "start": {
              "local": "1989-07-15T19:56:56+09:00",
              "utc": "1989-07-15T10:56:56Z",
              "ms": 616503415843.6355
            },
            "end": {
              "local": "1989-07-15T21:20:06+09:00",
              "utc": "1989-07-15T12:20:06Z",
              "ms": 616508405840.6677
            }
          },
          "covered_min": 0,
          "window_min": 83,
          "qualifies": false
        },
        {
          "local_date": "1989-07-16",
          "window": {
            "start": {
              "local": "1989-07-16T19:56:39+09:00",
              "utc": "1989-07-16T10:56:39Z",
              "ms": 616589798903.7195
            },
            "end": {
              "local": "1989-07-16T21:19:55+09:00",
              "utc": "1989-07-16T12:19:55Z",
              "ms": 616594794961.5479
            }
          },
          "covered_min": 83,
          "window_min": 83,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:26 on Sun 16 Jul to 04:26 on Mon 17 Jul.",
          "fact": "1989-07-15T19:25:35Z → 1989-07-16T19:25:30Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:57–21:20 on the 15th, 19:57–21:20 on the 16th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 83 minutes on the 15th and 83 of 83 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 25530 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Sunday 16 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Sunday 16 July. Trayodaśī runs from 04:26 on Sun 16 Jul to 04:26 on Mon 17 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-07-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vyasa-puja",
      "festival": "vyasa-puja",
      "name": "Vyāsa Pūjā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9134,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-07-18T03:49:24+09:00",
          "utc": "1989-07-17T18:49:24Z",
          "ms": 616704564472.0663
        },
        "end": {
          "local": "1989-07-19T02:41:37+09:00",
          "utc": "1989-07-18T17:41:37Z",
          "ms": 616786896878.9587
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-18T03:49:24+09:00",
          "utc": "1989-07-17T18:49:24Z",
          "ms": 616704564472.0663
        },
        "end": {
          "local": "1989-07-19T02:41:37+09:00",
          "utc": "1989-07-18T17:41:37Z",
          "ms": 616786896878.9587
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "1989-07-18",
          "window": {
            "start": {
              "local": "1989-07-18T06:21:38+09:00",
              "utc": "1989-07-17T21:21:38Z",
              "ms": 616713698096.1796
            },
            "end": {
              "local": "1989-07-18T09:04:31+09:00",
              "utc": "1989-07-18T00:04:31Z",
              "ms": 616723470700.2157
            }
          },
          "covered_min": 163,
          "window_min": 163,
          "qualifies": true
        },
        {
          "local_date": "1989-07-19",
          "window": {
            "start": {
              "local": "1989-07-19T06:22:07+09:00",
              "utc": "1989-07-18T21:22:07Z",
              "ms": 616800127075.7708
            },
            "end": {
              "local": "1989-07-19T09:04:50+09:00",
              "utc": "1989-07-19T00:04:50Z",
              "ms": 616809889717.2701
            }
          },
          "covered_min": 0,
          "window_min": 163,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 03:49 on Tue 18 Jul to 02:42 on Wed 19 Jul.",
          "fact": "1989-07-17T18:49:24Z → 1989-07-18T17:41:37Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:22–09:05 on the 18th, 06:22–09:05 on the 19th.",
          "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 163 of 163 minutes on the 18th and 0 of 163 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one morning qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 9134 s"
        },
        {
          "step": "ruling",
          "text": "Vyāsa Pūjā, Fuzhou, 1989: Tuesday 18 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vyasa-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "udaya-3",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vyāsa Pūjā 1989 falls on Tuesday 18 July. Pūrṇimā runs from 03:49 on Tue 18 Jul to 02:42 on Wed 19 Jul and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vyasa-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/guru-purnima",
      "festival": "guru-purnima",
      "name": "Guru Pūrṇimā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32125,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-07-18T03:49:24+09:00",
          "utc": "1989-07-17T18:49:24Z",
          "ms": 616704564472.0663
        },
        "end": {
          "local": "1989-07-19T02:41:37+09:00",
          "utc": "1989-07-18T17:41:37Z",
          "ms": 616786896878.9587
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-18T03:49:24+09:00",
          "utc": "1989-07-17T18:49:24Z",
          "ms": 616704564472.0663
        },
        "end": {
          "local": "1989-07-19T02:41:37+09:00",
          "utc": "1989-07-18T17:41:37Z",
          "ms": 616786896878.9587
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-07-18",
          "window": {
            "start": {
              "local": "1989-07-18T12:44:50+09:00",
              "utc": "1989-07-18T03:44:50Z",
              "ms": 616736689606.2698
            },
            "end": {
              "local": "1989-07-18T13:32:50+09:00",
              "utc": "1989-07-18T04:32:50Z",
              "ms": 616739569606.2698
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-07-19",
          "window": {
            "start": {
              "local": "1989-07-19T12:44:54+09:00",
              "utc": "1989-07-19T03:44:54Z",
              "ms": 616823093679.5193
            },
            "end": {
              "local": "1989-07-19T13:32:54+09:00",
              "utc": "1989-07-19T04:32:54Z",
              "ms": 616825973679.5193
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 03:49 on Tue 18 Jul to 02:42 on Wed 19 Jul.",
          "fact": "1989-07-17T18:49:24Z → 1989-07-18T17:41:37Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 18th, 12:45–13:33 on the 19th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 32125 s"
        },
        {
          "step": "ruling",
          "text": "Guru Pūrṇimā, Fuzhou, 1989: Tuesday 18 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "guru-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Guru Pūrṇimā 1989 falls on Tuesday 18 July. Pūrṇimā runs from 03:49 on Tue 18 Jul to 02:42 on Wed 19 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/guru-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/kokila-vrata",
      "festival": "kokila-vrata",
      "name": "Kokilā Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24336,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-07-18T03:49:24+09:00",
          "utc": "1989-07-17T18:49:24Z",
          "ms": 616704564472.0663
        },
        "end": {
          "local": "1989-07-19T02:41:37+09:00",
          "utc": "1989-07-18T17:41:37Z",
          "ms": 616786896878.9587
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-18T03:49:24+09:00",
          "utc": "1989-07-17T18:49:24Z",
          "ms": 616704564472.0663
        },
        "end": {
          "local": "1989-07-19T02:41:37+09:00",
          "utc": "1989-07-18T17:41:37Z",
          "ms": 616786896878.9587
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1989-07-17",
          "window": {
            "start": {
              "local": "1989-07-17T17:13:18+09:00",
              "utc": "1989-07-17T08:13:18Z",
              "ms": 616666398394.7595
            },
            "end": {
              "local": "1989-07-17T19:56:21+09:00",
              "utc": "1989-07-17T10:56:21Z",
              "ms": 616676180659.0913
            }
          },
          "covered_min": 0,
          "window_min": 163,
          "qualifies": false
        },
        {
          "local_date": "1989-07-18",
          "window": {
            "start": {
              "local": "1989-07-18T17:13:09+09:00",
              "utc": "1989-07-18T08:13:09Z",
              "ms": 616752788512.3239
            },
            "end": {
              "local": "1989-07-18T19:56:01+09:00",
              "utc": "1989-07-18T10:56:01Z",
              "ms": 616762561116.36
            }
          },
          "covered_min": 163,
          "window_min": 163,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 03:49 on Tue 18 Jul to 02:42 on Wed 19 Jul.",
          "fact": "1989-07-17T18:49:24Z → 1989-07-18T17:41:37Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:13–19:56 on the 17th, 17:13–19:56 on the 18th.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 163 minutes on the 17th and 163 of 163 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one late afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 24336 s"
        },
        {
          "step": "ruling",
          "text": "Kokilā Vrata, Fuzhou, 1989: Tuesday 18 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "kokila-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "sayahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kokilā Vrata 1989 falls on Tuesday 18 July. Pūrṇimā runs from 03:49 on Tue 18 Jul to 02:42 on Wed 19 Jul and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/kokila-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shiva-shayanotsava",
      "festival": "shiva-shayanotsava",
      "name": "Śiva Śayanotsava",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19327,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-07-18T03:49:24+09:00",
          "utc": "1989-07-17T18:49:24Z",
          "ms": 616704564472.0663
        },
        "end": {
          "local": "1989-07-19T02:41:37+09:00",
          "utc": "1989-07-18T17:41:37Z",
          "ms": 616786896878.9587
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-18T03:49:24+09:00",
          "utc": "1989-07-17T18:49:24Z",
          "ms": 616704564472.0663
        },
        "end": {
          "local": "1989-07-19T02:41:37+09:00",
          "utc": "1989-07-18T17:41:37Z",
          "ms": 616786896878.9587
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-07-17",
          "window": {
            "start": {
              "local": "1989-07-17T19:56:21+09:00",
              "utc": "1989-07-17T10:56:21Z",
              "ms": 616676180659.0913
            },
            "end": {
              "local": "1989-07-17T21:19:43+09:00",
              "utc": "1989-07-17T12:19:43Z",
              "ms": 616681182984.0364
            }
          },
          "covered_min": 0,
          "window_min": 83,
          "qualifies": false
        },
        {
          "local_date": "1989-07-18",
          "window": {
            "start": {
              "local": "1989-07-18T19:56:01+09:00",
              "utc": "1989-07-18T10:56:01Z",
              "ms": 616762561116.36
            },
            "end": {
              "local": "1989-07-18T21:19:30+09:00",
              "utc": "1989-07-18T12:19:30Z",
              "ms": 616767569910.9481
            }
          },
          "covered_min": 83,
          "window_min": 83,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 03:49 on Tue 18 Jul to 02:42 on Wed 19 Jul.",
          "fact": "1989-07-17T18:49:24Z → 1989-07-18T17:41:37Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:56–21:20 on the 17th, 19:56–21:19 on the 18th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 83 minutes on the 17th and 83 of 83 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 19327 s"
        },
        {
          "step": "ruling",
          "text": "Śiva Śayanotsava, Fuzhou, 1989: Tuesday 18 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shiva-shayanotsava",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śiva Śayanotsava 1989 falls on Tuesday 18 July. Pūrṇimā runs from 03:49 on Tue 18 Jul to 02:42 on Wed 19 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shiva-shayanotsava",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ashunya-shayana-vrata-ashadha",
      "festival": "ashunya-shayana-vrata-ashadha",
      "name": "Aśūnya Śayana Vrata (Āṣāḍha)",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7088,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1989-07-20T01:07:36+09:00",
          "utc": "1989-07-19T16:07:36Z",
          "ms": 616867655806.0161
        },
        "end": {
          "local": "1989-07-20T23:13:14+09:00",
          "utc": "1989-07-20T14:13:14Z",
          "ms": 616947193724.4047
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-20T01:07:36+09:00",
          "utc": "1989-07-19T16:07:36Z",
          "ms": 616867655806.0161
        },
        "end": {
          "local": "1989-07-20T23:13:14+09:00",
          "utc": "1989-07-20T14:13:14Z",
          "ms": 616947193724.4047
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-07-19",
          "window": {
            "start": {
              "local": "1989-07-19T20:34:37+09:00",
              "utc": "1989-07-19T11:34:37Z",
              "ms": 616851276796.2819
            },
            "end": {
              "local": "1989-07-19T20:34:37+09:00",
              "utc": "1989-07-19T11:34:37Z",
              "ms": 616851276796.2819
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-07-20",
          "window": {
            "start": {
              "local": "1989-07-20T21:15:05+09:00",
              "utc": "1989-07-20T12:15:05Z",
              "ms": 616940105270.5287
            },
            "end": {
              "local": "1989-07-20T21:15:05+09:00",
              "utc": "1989-07-20T12:15:05Z",
              "ms": 616940105270.5287
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 01:08 on Thu 20 Jul to 23:13 on Thu 20 Jul.",
          "fact": "1989-07-19T16:07:36Z → 1989-07-20T14:13:14Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:35 on the 19th and 21:15 on the 20th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is not on the 19th and is on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7088 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata (Āṣāḍha), Fuzhou, 1989: Thursday 20 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ashunya-shayana-vrata-ashadha",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 2 Asunya sayana vrata (candrodaya vyapini; purvahna vyapini and purvaviddha in Bengal)."
          }
        ],
        "not_evaluated": "In Bengal the row reads pūrvāhṇa and pūrvaviddha; that reading is not applied.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Aśūnya Śayana Vrata (Āṣāḍha) 1989 falls on Thursday 20 July. Dvitīyā runs from 01:08 on Thu 20 Jul to 23:13 on Thu 20 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ashunya-shayana-vrata-ashadha",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-07-21",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2866,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-07-21T21:04:16+09:00",
          "utc": "1989-07-21T12:04:16Z",
          "ms": 617025855816.7571
        },
        "end": {
          "local": "1989-07-22T18:46:00+09:00",
          "utc": "1989-07-22T09:46:00Z",
          "ms": 617103960242.4136
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-21T21:04:16+09:00",
          "utc": "1989-07-21T12:04:16Z",
          "ms": 617025855816.7571
        },
        "end": {
          "local": "1989-07-22T18:46:00+09:00",
          "utc": "1989-07-22T09:46:00Z",
          "ms": 617103960242.4136
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-07-21",
          "window": {
            "start": {
              "local": "1989-07-21T21:52:01+09:00",
              "utc": "1989-07-21T12:52:01Z",
              "ms": 617028721416.8773
            },
            "end": {
              "local": "1989-07-21T21:52:01+09:00",
              "utc": "1989-07-21T12:52:01Z",
              "ms": 617028721416.8773
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-07-22",
          "window": {
            "start": {
              "local": "1989-07-22T22:26:55+09:00",
              "utc": "1989-07-22T13:26:55Z",
              "ms": 617117214869.6559
            },
            "end": {
              "local": "1989-07-22T22:26:55+09:00",
              "utc": "1989-07-22T13:26:55Z",
              "ms": 617117214869.6559
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 21:04 on Fri 21 Jul to 18:46 on Sat 22 Jul.",
          "fact": "1989-07-21T12:04:16Z → 1989-07-22T09:46:00Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:52 on the 21st and 22:27 on the 22nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 21st and is not on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2866 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Friday 21 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Friday 21 July. Caturthī runs from 21:04 on Fri 21 Jul to 18:46 on Sat 22 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-07-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-07-28",
      "festival": "ekadashi",
      "name": "Kāmikā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3571,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-07-28T05:27:04+09:00",
          "utc": "1989-07-27T20:27:04Z",
          "ms": 617574423995.0864
        },
        "end": {
          "local": "1989-07-29T03:49:36+09:00",
          "utc": "1989-07-28T18:49:36Z",
          "ms": 617654976106.3241
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-28T05:27:04+09:00",
          "utc": "1989-07-27T20:27:04Z",
          "ms": 617574423995.0864
        },
        "end": {
          "local": "1989-07-29T03:49:36+09:00",
          "utc": "1989-07-28T18:49:36Z",
          "ms": 617654976106.3241
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-07-28",
          "window": {
            "start": {
              "local": "1989-07-28T06:26:35+09:00",
              "utc": "1989-07-27T21:26:35Z",
              "ms": 617577994653.1952
            },
            "end": {
              "local": "1989-07-28T06:26:35+09:00",
              "utc": "1989-07-27T21:26:35Z",
              "ms": 617577994653.1952
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-07-29",
          "window": {
            "start": {
              "local": "1989-07-29T06:27:05+09:00",
              "utc": "1989-07-28T21:27:05Z",
              "ms": 617664424779.3904
            },
            "end": {
              "local": "1989-07-29T06:27:05+09:00",
              "utc": "1989-07-28T21:27:05Z",
              "ms": 617664424779.3904
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 05:27 on Fri 28 Jul to 03:50 on Sat 29 Jul.",
          "fact": "1989-07-27T20:27:04Z → 1989-07-28T18:49:36Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:27 on the 28th and 06:27 on the 29th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 28th and is not on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 3571 s"
        },
        {
          "step": "ruling",
          "text": "Kāmikā Ekādaśī, Fuzhou, 1989: Friday 28 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kāmikā Ekādaśī 1989 falls on Friday 28 July. Ekādaśī runs from 05:27 on Fri 28 Jul to 03:50 on Sat 29 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-07-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-07-30",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15582,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-07-30T02:31:05+09:00",
          "utc": "1989-07-29T17:31:05Z",
          "ms": 617736664902.5404
        },
        "end": {
          "local": "1989-07-31T01:35:12+09:00",
          "utc": "1989-07-30T16:35:12Z",
          "ms": 617819711931.3094
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-30T02:31:05+09:00",
          "utc": "1989-07-29T17:31:05Z",
          "ms": 617736664902.5404
        },
        "end": {
          "local": "1989-07-31T01:35:12+09:00",
          "utc": "1989-07-30T16:35:12Z",
          "ms": 617819711931.3094
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-07-29",
          "window": {
            "start": {
              "local": "1989-07-29T19:51:03+09:00",
              "utc": "1989-07-29T10:51:03Z",
              "ms": 617712663152.132
            },
            "end": {
              "local": "1989-07-29T21:15:55+09:00",
              "utc": "1989-07-29T12:15:55Z",
              "ms": 617717755386.1371
            }
          },
          "covered_min": 0,
          "window_min": 85,
          "qualifies": false
        },
        {
          "local_date": "1989-07-30",
          "window": {
            "start": {
              "local": "1989-07-30T19:50:29+09:00",
              "utc": "1989-07-30T10:50:29Z",
              "ms": 617799028794.8772
            },
            "end": {
              "local": "1989-07-30T21:15:30+09:00",
              "utc": "1989-07-30T12:15:30Z",
              "ms": 617804129624.1686
            }
          },
          "covered_min": 85,
          "window_min": 85,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 02:31 on Sun 30 Jul to 01:35 on Mon 31 Jul.",
          "fact": "1989-07-29T17:31:05Z → 1989-07-30T16:35:12Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:51–21:16 on the 29th, 19:50–21:15 on the 30th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 85 minutes on the 29th and 85 of 85 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 15582 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Sunday 30 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Sunday 30 July. Trayodaśī runs from 02:31 on Sun 30 Jul to 01:35 on Mon 31 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-07-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-07-31",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-07-31",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 115,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-07-31T01:35:12+09:00",
          "utc": "1989-07-30T16:35:12Z",
          "ms": 617819711931.3094
        },
        "end": {
          "local": "1989-08-01T01:05:37+09:00",
          "utc": "1989-07-31T16:05:37Z",
          "ms": 617904337083.5596
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-07-31T01:35:12+09:00",
          "utc": "1989-07-30T16:35:12Z",
          "ms": 617819711931.3094
        },
        "end": {
          "local": "1989-08-01T01:05:37+09:00",
          "utc": "1989-07-31T16:05:37Z",
          "ms": 617904337083.5596
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-07-30",
          "window": {
            "start": {
              "local": "1989-07-31T00:45:17+09:00",
              "utc": "1989-07-30T15:45:17Z",
              "ms": 617816716904.7197
            },
            "end": {
              "local": "1989-07-31T01:33:17+09:00",
              "utc": "1989-07-30T16:33:17Z",
              "ms": 617819596904.7197
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-07-31",
          "window": {
            "start": {
              "local": "1989-08-01T00:45:14+09:00",
              "utc": "1989-07-31T15:45:14Z",
              "ms": 617903114176.6451
            },
            "end": {
              "local": "1989-08-01T01:33:14+09:00",
              "utc": "1989-07-31T16:33:14Z",
              "ms": 617905994176.6451
            }
          },
          "covered_min": 20,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 01:35 on Mon 31 Jul to 01:06 on Tue 1 Aug.",
          "fact": "1989-07-30T16:35:12Z → 1989-07-31T16:05:37Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:45–01:33 on the 30th, 00:45–01:33 on the 31st.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 30th and 20 of 48 on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 115 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Monday 31 July.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-07-31",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-07-31",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Monday 31 July. Caturdaśī runs from 01:35 on Mon 31 Jul to 01:06 on Tue 1 Aug and covers 20 of 48 minutes of niśītha that night. It is 1 min 55 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-07-31",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/madhusrava-tritiya",
      "festival": "madhusrava-tritiya",
      "name": "Madhusravā Tṛtīyā",
      "everyday": "Hariyali Teej",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30466,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1989-08-04T02:41:45+09:00",
          "utc": "1989-08-03T17:41:45Z",
          "ms": 618169304516.6902
        },
        "end": {
          "local": "1989-08-05T04:16:50+09:00",
          "utc": "1989-08-04T19:16:50Z",
          "ms": 618261410479.6398
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-04T02:41:45+09:00",
          "utc": "1989-08-03T17:41:45Z",
          "ms": 618169304516.6902
        },
        "end": {
          "local": "1989-08-05T04:16:50+09:00",
          "utc": "1989-08-04T19:16:50Z",
          "ms": 618261410479.6398
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-04",
          "window": {
            "start": {
              "local": "1989-08-04T12:44:42+09:00",
              "utc": "1989-08-04T03:44:42Z",
              "ms": 618205482305.3054
            },
            "end": {
              "local": "1989-08-04T13:32:42+09:00",
              "utc": "1989-08-04T04:32:42Z",
              "ms": 618208362305.3054
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-08-05",
          "window": {
            "start": {
              "local": "1989-08-05T12:44:37+09:00",
              "utc": "1989-08-05T03:44:37Z",
              "ms": 618291876580.7643
            },
            "end": {
              "local": "1989-08-05T13:32:37+09:00",
              "utc": "1989-08-05T04:32:37Z",
              "ms": 618294756580.7643
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 02:42 on Fri 4 Aug to 04:17 on Sat 5 Aug.",
          "fact": "1989-08-03T17:41:45Z → 1989-08-04T19:16:50Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 4th, 12:45–13:33 on the 5th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 30466 s"
        },
        {
          "step": "ruling",
          "text": "Madhusravā Tṛtīyā, Fuzhou, 1989: Friday 4 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "madhusrava-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Madhusrava (Gujerat) (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Madhusravā Tṛtīyā (Hariyali Teej) 1989 falls on Friday 4 August. Tṛtīyā runs from 02:42 on Fri 4 Aug to 04:17 on Sat 5 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/madhusrava-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-08-05",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23191,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-08-05T04:16:50+09:00",
          "utc": "1989-08-04T19:16:50Z",
          "ms": 618261410479.6398
        },
        "end": {
          "local": "1989-08-06T06:18:00+09:00",
          "utc": "1989-08-05T21:18:00Z",
          "ms": 618355079625.534
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-05T04:16:50+09:00",
          "utc": "1989-08-04T19:16:50Z",
          "ms": 618261410479.6398
        },
        "end": {
          "local": "1989-08-06T06:18:00+09:00",
          "utc": "1989-08-05T21:18:00Z",
          "ms": 618355079625.534
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-05",
          "window": {
            "start": {
              "local": "1989-08-05T12:44:37+09:00",
              "utc": "1989-08-05T03:44:37Z",
              "ms": 618291876580.7643
            },
            "end": {
              "local": "1989-08-05T13:32:37+09:00",
              "utc": "1989-08-05T04:32:37Z",
              "ms": 618294756580.7643
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-08-06",
          "window": {
            "start": {
              "local": "1989-08-06T12:44:30+09:00",
              "utc": "1989-08-06T03:44:30Z",
              "ms": 618378270249.5759
            },
            "end": {
              "local": "1989-08-06T13:32:30+09:00",
              "utc": "1989-08-06T04:32:30Z",
              "ms": 618381150249.5759
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:17 on Sat 5 Aug to 06:18 on Sun 6 Aug.",
          "fact": "1989-08-04T19:16:50Z → 1989-08-05T21:18:00Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 5th, 12:45–13:33 on the 6th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 23191 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Saturday 5 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Saturday 5 August. Caturthī runs from 04:17 on Sat 5 Aug to 06:18 on Sun 6 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-08-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/naga-panchami",
      "festival": "naga-panchami",
      "name": "Nāga Pañcamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14830,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1989-08-06T06:18:00+09:00",
          "utc": "1989-08-05T21:18:00Z",
          "ms": 618355079625.534
        },
        "end": {
          "local": "1989-08-07T08:37:13+09:00",
          "utc": "1989-08-06T23:37:13Z",
          "ms": 618449832910.7888
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-06T06:18:00+09:00",
          "utc": "1989-08-05T21:18:00Z",
          "ms": 618355079625.534
        },
        "end": {
          "local": "1989-08-07T08:37:13+09:00",
          "utc": "1989-08-06T23:37:13Z",
          "ms": 618449832910.7888
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-06",
          "window": {
            "start": {
              "local": "1989-08-06T12:44:30+09:00",
              "utc": "1989-08-06T03:44:30Z",
              "ms": 618378270249.5759
            },
            "end": {
              "local": "1989-08-06T13:32:30+09:00",
              "utc": "1989-08-06T04:32:30Z",
              "ms": 618381150249.5759
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-08-07",
          "window": {
            "start": {
              "local": "1989-08-07T12:44:23+09:00",
              "utc": "1989-08-07T03:44:23Z",
              "ms": 618464663313.5891
            },
            "end": {
              "local": "1989-08-07T13:32:23+09:00",
              "utc": "1989-08-07T04:32:23Z",
              "ms": 618467543313.5891
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 06:18 on Sun 6 Aug to 08:37 on Mon 7 Aug.",
          "fact": "1989-08-05T21:18:00Z → 1989-08-06T23:37:13Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 6th, 12:44–13:32 on the 7th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 14830 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī, Fuzhou, 1989: Sunday 6 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naga-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Naga pancami (paraviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Nāga Pañcamī 1989 falls on Sunday 6 August. Pañcamī runs from 06:18 on Sun 6 Aug to 08:37 on Mon 7 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/naga-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-08-13",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 40711,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-08-12T17:52:30+09:00",
          "utc": "1989-08-12T08:52:30Z",
          "ms": 618915149503.5172
        },
        "end": {
          "local": "1989-08-13T18:03:23+09:00",
          "utc": "1989-08-13T09:03:23Z",
          "ms": 619002202704.9679
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-12T17:52:30+09:00",
          "utc": "1989-08-12T08:52:30Z",
          "ms": 618915149503.5172
        },
        "end": {
          "local": "1989-08-13T18:03:23+09:00",
          "utc": "1989-08-13T09:03:23Z",
          "ms": 619002202704.9679
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-08-12",
          "window": {
            "start": {
              "local": "1989-08-12T06:33:58+09:00",
              "utc": "1989-08-11T21:33:58Z",
              "ms": 618874438160.7263
            },
            "end": {
              "local": "1989-08-12T06:33:58+09:00",
              "utc": "1989-08-11T21:33:58Z",
              "ms": 618874438160.7263
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-08-13",
          "window": {
            "start": {
              "local": "1989-08-13T06:34:27+09:00",
              "utc": "1989-08-12T21:34:27Z",
              "ms": 618960866520.1128
            },
            "end": {
              "local": "1989-08-13T06:34:27+09:00",
              "utc": "1989-08-12T21:34:27Z",
              "ms": 618960866520.1128
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 17:52 on Sat 12 Aug to 18:03 on Sun 13 Aug.",
          "fact": "1989-08-12T08:52:30Z → 1989-08-13T09:03:23Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:34 on the 12th and 06:34 on the 13th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 40711 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Fuzhou, 1989: Sunday 13 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Putradā Ekādaśī 1989 falls on Sunday 13 August. Ekādaśī runs from 17:52 on Sat 12 Aug to 18:03 on Sun 13 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-08-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/damodara-dvadashi",
      "festival": "damodara-dvadashi",
      "name": "Dāmodara Dvādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14357,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1989-08-13T18:03:23+09:00",
          "utc": "1989-08-13T09:03:23Z",
          "ms": 619002202704.9679
        },
        "end": {
          "local": "1989-08-14T17:30:35+09:00",
          "utc": "1989-08-14T08:30:35Z",
          "ms": 619086635328.1816
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-13T18:03:23+09:00",
          "utc": "1989-08-13T09:03:23Z",
          "ms": 619002202704.9679
        },
        "end": {
          "local": "1989-08-14T17:30:35+09:00",
          "utc": "1989-08-14T08:30:35Z",
          "ms": 619086635328.1816
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-13",
          "window": {
            "start": {
              "local": "1989-08-13T12:43:29+09:00",
              "utc": "1989-08-13T03:43:29Z",
              "ms": 618983009245.3135
            },
            "end": {
              "local": "1989-08-13T13:31:29+09:00",
              "utc": "1989-08-13T04:31:29Z",
              "ms": 618985889245.3135
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-08-14",
          "window": {
            "start": {
              "local": "1989-08-14T12:43:18+09:00",
              "utc": "1989-08-14T03:43:18Z",
              "ms": 619069398223.4258
            },
            "end": {
              "local": "1989-08-14T13:31:18+09:00",
              "utc": "1989-08-14T04:31:18Z",
              "ms": 619072278223.4258
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 18:03 on Sun 13 Aug to 17:31 on Mon 14 Aug.",
          "fact": "1989-08-13T09:03:23Z → 1989-08-14T08:30:35Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 13th, 12:43–13:31 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 14357 s"
        },
        {
          "step": "ruling",
          "text": "Dāmodara Dvādaśī, Fuzhou, 1989: Monday 14 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "damodara-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Buddha dvadasi, Damodara dvadasi (purvaviddha), Visnu-pavitraropana."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Dāmodara Dvādaśī 1989 falls on Monday 14 August. Dvādaśī runs from 18:03 on Sun 13 Aug to 17:31 on Mon 14 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/damodara-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-08-14",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7746,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-08-14T17:30:35+09:00",
          "utc": "1989-08-14T08:30:35Z",
          "ms": 619086635328.1816
        },
        "end": {
          "local": "1989-08-15T16:16:37+09:00",
          "utc": "1989-08-15T07:16:37Z",
          "ms": 619168597118.105
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-14T17:30:35+09:00",
          "utc": "1989-08-14T08:30:35Z",
          "ms": 619086635328.1816
        },
        "end": {
          "local": "1989-08-15T16:16:37+09:00",
          "utc": "1989-08-15T07:16:37Z",
          "ms": 619168597118.105
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-08-14",
          "window": {
            "start": {
              "local": "1989-08-14T19:39:42+09:00",
              "utc": "1989-08-14T10:39:42Z",
              "ms": 619094381767.1064
            },
            "end": {
              "local": "1989-08-14T21:07:07+09:00",
              "utc": "1989-08-14T12:07:07Z",
              "ms": 619099627216.5411
            }
          },
          "covered_min": 87,
          "window_min": 87,
          "qualifies": true
        },
        {
          "local_date": "1989-08-15",
          "window": {
            "start": {
              "local": "1989-08-15T19:38:51+09:00",
              "utc": "1989-08-15T10:38:51Z",
              "ms": 619180730667.3971
            },
            "end": {
              "local": "1989-08-15T21:06:27+09:00",
              "utc": "1989-08-15T12:06:27Z",
              "ms": 619185986631.0209
            }
          },
          "covered_min": 0,
          "window_min": 88,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:31 on Mon 14 Aug to 16:17 on Tue 15 Aug.",
          "fact": "1989-08-14T08:30:35Z → 1989-08-15T07:16:37Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:40–21:07 on the 14th, 19:39–21:06 on the 15th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 87 of 87 minutes on the 14th and 0 of 88 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7746 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Monday 14 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Monday 14 August. Trayodaśī runs from 17:31 on Mon 14 Aug to 16:17 on Tue 15 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-08-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/raksha-bandhana",
      "festival": "raksha-bandhana",
      "name": "Rakṣā Bandhana",
      "everyday": "Rakhi",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-17",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 18992,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-08-16T14:26:26+09:00",
          "utc": "1989-08-16T05:26:26Z",
          "ms": 619248385505.0808
        },
        "end": {
          "local": "1989-08-17T12:06:37+09:00",
          "utc": "1989-08-17T03:06:37Z",
          "ms": 619326396967.2754
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "second-half",
        "start": {
          "local": "1989-08-17T01:19:46+09:00",
          "utc": "1989-08-16T16:19:46Z",
          "ms": 619287585908.1152
        },
        "end": {
          "local": "1989-08-17T12:06:37+09:00",
          "utc": "1989-08-17T03:06:37Z",
          "ms": 619326396967.2754
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "1989-08-16",
          "window": {
            "start": {
              "local": "1989-08-16T06:35:50+09:00",
              "utc": "1989-08-15T21:35:50Z",
              "ms": 619220150394.5752
            },
            "end": {
              "local": "1989-08-17T06:36:18+09:00",
              "utc": "1989-08-16T21:36:18Z",
              "ms": 619306577951.8794
            }
          },
          "covered_min": 317,
          "window_min": 1440,
          "qualifies": true
        },
        {
          "local_date": "1989-08-17",
          "window": {
            "start": {
              "local": "1989-08-17T06:36:18+09:00",
              "utc": "1989-08-16T21:36:18Z",
              "ms": 619306577951.8794
            },
            "end": {
              "local": "1989-08-18T06:36:45+09:00",
              "utc": "1989-08-17T21:36:45Z",
              "ms": 619393005313.5892
            }
          },
          "covered_min": 330,
          "window_min": 1440,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 14:26 on Wed 16 Aug to 12:07 on Thu 17 Aug. Its second half begins at 01:20 on Thu 17 Aug.",
          "fact": "1989-08-16T05:26:26Z → 1989-08-17T03:06:37Z · second half from 1989-08-16T16:19:46Z"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 06:36 on the 16th, and from 06:36 on the 17th.",
          "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The second half of Pūrṇimā must be present during the day. It covers 317 of 1440 minutes on the 16th and 330 of 1440 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 18992 s"
        },
        {
          "step": "ruling",
          "text": "Rakṣā Bandhana, Fuzhou, 1989: Thursday 17 August.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "raksha-bandhana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana"
          }
        ],
        "kaala": "day",
        "priority": "unstated",
        "when_absent": "unstated",
        "half": "second"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-17",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-17",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Rakṣā Bandhana (Rakhi) 1989 falls on Thursday 17 August. The second half of Pūrṇimā runs from 01:20 on Thu 17 Aug to 12:07 on Thu 17 Aug and falls on two days: 330 minutes of it on the 17th, 317 on the 16th; the rule does not say which to take, and the day that holds more of it is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/raksha-bandhana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/rishi-tarpana",
      "festival": "rishi-tarpana",
      "name": "Ṛṣi Tarpaṇa",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2165,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-08-16T14:26:26+09:00",
          "utc": "1989-08-16T05:26:26Z",
          "ms": 619248385505.0808
        },
        "end": {
          "local": "1989-08-17T12:06:37+09:00",
          "utc": "1989-08-17T03:06:37Z",
          "ms": 619326396967.2754
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-16T14:26:26+09:00",
          "utc": "1989-08-16T05:26:26Z",
          "ms": 619248385505.0808
        },
        "end": {
          "local": "1989-08-17T12:06:37+09:00",
          "utc": "1989-08-17T03:06:37Z",
          "ms": 619326396967.2754
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-16",
          "window": {
            "start": {
              "local": "1989-08-16T12:42:55+09:00",
              "utc": "1989-08-16T03:42:55Z",
              "ms": 619242174545.2932
            },
            "end": {
              "local": "1989-08-16T13:30:55+09:00",
              "utc": "1989-08-16T04:30:55Z",
              "ms": 619245054545.2932
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-08-17",
          "window": {
            "start": {
              "local": "1989-08-17T12:42:42+09:00",
              "utc": "1989-08-17T03:42:42Z",
              "ms": 619328561915.0104
            },
            "end": {
              "local": "1989-08-17T13:30:42+09:00",
              "utc": "1989-08-17T04:30:42Z",
              "ms": 619331441915.0104
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 14:26 on Wed 16 Aug to 12:07 on Thu 17 Aug.",
          "fact": "1989-08-16T05:26:26Z → 1989-08-17T03:06:37Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 16th, 12:43–13:31 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 0 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: unstated → second-day · margin 2165 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Tarpaṇa, Fuzhou, 1989: Thursday 17 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rishi-tarpana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana"
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-17",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Ṛṣi Tarpaṇa 1989 falls on Thursday 17 August. Pūrṇimā runs from 14:26 on Wed 16 Aug to 12:07 on Thu 17 Aug, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/rishi-tarpana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ashunya-shayana-vrata",
      "festival": "ashunya-shayana-vrata",
      "name": "Aśūnya Śayana Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36234,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1989-08-18T09:24:45+09:00",
          "utc": "1989-08-18T00:24:45Z",
          "ms": 619403085230.3544
        },
        "end": {
          "local": "1989-08-19T06:28:49+09:00",
          "utc": "1989-08-18T21:28:49Z",
          "ms": 619478928518.9757
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-18T09:24:45+09:00",
          "utc": "1989-08-18T00:24:45Z",
          "ms": 619403085230.3544
        },
        "end": {
          "local": "1989-08-19T06:28:49+09:00",
          "utc": "1989-08-18T21:28:49Z",
          "ms": 619478928518.9757
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-08-17",
          "window": {
            "start": {
              "local": "1989-08-17T19:48:21+09:00",
              "utc": "1989-08-17T10:48:21Z",
              "ms": 619354100658.1492
            },
            "end": {
              "local": "1989-08-17T19:48:21+09:00",
              "utc": "1989-08-17T10:48:21Z",
              "ms": 619354100658.1492
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-08-18",
          "window": {
            "start": {
              "local": "1989-08-18T20:24:54+09:00",
              "utc": "1989-08-18T11:24:54Z",
              "ms": 619442694126.9493
            },
            "end": {
              "local": "1989-08-18T20:24:54+09:00",
              "utc": "1989-08-18T11:24:54Z",
              "ms": 619442694126.9493
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 09:25 on Fri 18 Aug to 06:29 on Sat 19 Aug.",
          "fact": "1989-08-18T00:24:45Z → 1989-08-18T21:28:49Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:48 on the 17th and 20:25 on the 18th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is not on the 17th and is on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 36234 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata, Fuzhou, 1989: Friday 18 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ashunya-shayana-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 2 Asunyasayana vrata (Dvitiya current at moonrise; if occurs on two successive days, it is to be observed on the second day)."
          }
        ],
        "kaala": "moonrise",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Aśūnya Śayana Vrata 1989 falls on Friday 18 August. Dvitīyā runs from 09:25 on Fri 18 Aug to 06:29 on Sat 19 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ashunya-shayana-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/kajjali-tritiya",
      "festival": "kajjali-tritiya",
      "name": "Kajjalī Tṛtīyā",
      "everyday": "Kajari Teej",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22407,
      "anga": {
        "type": "tithi",
        "index": 17,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1989-08-19T06:28:49+09:00",
          "utc": "1989-08-18T21:28:49Z",
          "ms": 619478928518.9757
        },
        "end": {
          "local": "1989-08-20T03:26:45+09:00",
          "utc": "1989-08-19T18:26:45Z",
          "ms": 619554404749.3107
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-19T06:28:49+09:00",
          "utc": "1989-08-18T21:28:49Z",
          "ms": 619478928518.9757
        },
        "end": {
          "local": "1989-08-20T03:26:45+09:00",
          "utc": "1989-08-19T18:26:45Z",
          "ms": 619554404749.3107
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-19",
          "window": {
            "start": {
              "local": "1989-08-19T12:42:15+09:00",
              "utc": "1989-08-19T03:42:15Z",
              "ms": 619501335145.3247
            },
            "end": {
              "local": "1989-08-19T13:30:15+09:00",
              "utc": "1989-08-19T04:30:15Z",
              "ms": 619504215145.3247
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-08-20",
          "window": {
            "start": {
              "local": "1989-08-20T12:42:01+09:00",
              "utc": "1989-08-20T03:42:01Z",
              "ms": 619587721037.5574
            },
            "end": {
              "local": "1989-08-20T13:30:01+09:00",
              "utc": "1989-08-20T04:30:01Z",
              "ms": 619590601037.5574
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 06:29 on Sat 19 Aug to 03:27 on Sun 20 Aug.",
          "fact": "1989-08-18T21:28:49Z → 1989-08-19T18:26:45Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 19th, 12:42–13:30 on the 20th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 22407 s"
        },
        {
          "step": "ruling",
          "text": "Kajjalī Tṛtīyā, Fuzhou, 1989: Saturday 19 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "kajjali-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 3 Kajjali trtiya, (paraviddha), Angaveta trtiya (Orissa)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kajjalī Tṛtīyā (Kajari Teej) 1989 falls on Saturday 19 August. Tṛtīyā runs from 06:29 on Sat 19 Aug to 03:27 on Sun 20 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/kajjali-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/bahula-chaturthi",
      "festival": "bahula-chaturthi",
      "name": "Bahulā Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17510,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-08-20T03:26:45+09:00",
          "utc": "1989-08-19T18:26:45Z",
          "ms": 619554404749.3107
        },
        "end": {
          "local": "1989-08-21T00:26:12+09:00",
          "utc": "1989-08-20T15:26:12Z",
          "ms": 619629972306.8308
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-20T03:26:45+09:00",
          "utc": "1989-08-19T18:26:45Z",
          "ms": 619554404749.3107
        },
        "end": {
          "local": "1989-08-21T00:26:12+09:00",
          "utc": "1989-08-20T15:26:12Z",
          "ms": 619629972306.8308
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1989-08-19",
          "window": {
            "start": {
              "local": "1989-08-19T16:59:41+09:00",
              "utc": "1989-08-19T07:59:41Z",
              "ms": 619516780741.5387
            },
            "end": {
              "local": "1989-08-19T19:35:18+09:00",
              "utc": "1989-08-19T10:35:18Z",
              "ms": 619526117805.6814
            }
          },
          "covered_min": 0,
          "window_min": 156,
          "qualifies": false
        },
        {
          "local_date": "1989-08-20",
          "window": {
            "start": {
              "local": "1989-08-20T16:59:02+09:00",
              "utc": "1989-08-20T07:59:02Z",
              "ms": 619603141976.8038
            },
            "end": {
              "local": "1989-08-20T19:34:23+09:00",
              "utc": "1989-08-20T10:34:23Z",
              "ms": 619612462602.9681
            }
          },
          "covered_min": 155,
          "window_min": 155,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:27 on Sun 20 Aug to 00:26 on Mon 21 Aug.",
          "fact": "1989-08-19T18:26:45Z → 1989-08-20T15:26:12Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:00–19:35 on the 19th, 16:59–19:34 on the 20th.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during sāyāhna. It covers 0 of 156 minutes on the 19th and 155 of 155 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one late afternoon qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 17510 s"
        },
        {
          "step": "ruling",
          "text": "Bahulā Caturthī, Fuzhou, 1989: Sunday 20 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "bahula-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)."
          }
        ],
        "kaala": "sayahna",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Bahulā Caturthī 1989 falls on Sunday 20 August. Caturthī runs from 03:27 on Sun 20 Aug to 00:26 on Mon 21 Aug and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/bahula-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-08-20",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10180,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-08-20T03:26:45+09:00",
          "utc": "1989-08-19T18:26:45Z",
          "ms": 619554404749.3107
        },
        "end": {
          "local": "1989-08-21T00:26:12+09:00",
          "utc": "1989-08-20T15:26:12Z",
          "ms": 619629972306.8308
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-20T03:26:45+09:00",
          "utc": "1989-08-19T18:26:45Z",
          "ms": 619554404749.3107
        },
        "end": {
          "local": "1989-08-21T00:26:12+09:00",
          "utc": "1989-08-20T15:26:12Z",
          "ms": 619629972306.8308
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-08-19",
          "window": {
            "start": {
              "local": "1989-08-19T21:00:26+09:00",
              "utc": "1989-08-19T12:00:26Z",
              "ms": 619531225937.0273
            },
            "end": {
              "local": "1989-08-19T21:00:26+09:00",
              "utc": "1989-08-19T12:00:26Z",
              "ms": 619531225937.0273
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-08-20",
          "window": {
            "start": {
              "local": "1989-08-20T21:36:32+09:00",
              "utc": "1989-08-20T12:36:32Z",
              "ms": 619619791859.8273
            },
            "end": {
              "local": "1989-08-20T21:36:32+09:00",
              "utc": "1989-08-20T12:36:32Z",
              "ms": 619619791859.8273
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:27 on Sun 20 Aug to 00:26 on Mon 21 Aug.",
          "fact": "1989-08-19T18:26:45Z → 1989-08-20T15:26:12Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:00 on the 19th and 21:37 on the 20th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 19th and is on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 10180 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Sunday 20 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Sunday 20 August. Caturthī runs from 03:27 on Sun 20 Aug to 00:26 on Mon 21 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-08-20",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/hala-shashthi",
      "festival": "hala-shashthi",
      "name": "Hala Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19653,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1989-08-21T21:34:14+09:00",
          "utc": "1989-08-21T12:34:14Z",
          "ms": 619706054201.7158
        },
        "end": {
          "local": "1989-08-22T18:57:04+09:00",
          "utc": "1989-08-22T09:57:04Z",
          "ms": 619783024317.721
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-21T21:34:14+09:00",
          "utc": "1989-08-21T12:34:14Z",
          "ms": 619706054201.7158
        },
        "end": {
          "local": "1989-08-22T18:57:04+09:00",
          "utc": "1989-08-22T09:57:04Z",
          "ms": 619783024317.721
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-21",
          "window": {
            "start": {
              "local": "1989-08-21T12:41:46+09:00",
              "utc": "1989-08-21T03:41:46Z",
              "ms": 619674106469.2959
            },
            "end": {
              "local": "1989-08-21T13:29:46+09:00",
              "utc": "1989-08-21T04:29:46Z",
              "ms": 619676986469.2959
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-08-22",
          "window": {
            "start": {
              "local": "1989-08-22T12:41:31+09:00",
              "utc": "1989-08-22T03:41:31Z",
              "ms": 619760491456.2676
            },
            "end": {
              "local": "1989-08-22T13:29:31+09:00",
              "utc": "1989-08-22T04:29:31Z",
              "ms": 619763371456.2676
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 21:34 on Mon 21 Aug to 18:57 on Tue 22 Aug.",
          "fact": "1989-08-21T12:34:14Z → 1989-08-22T09:57:04Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 21st, 12:42–13:30 on the 22nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 19653 s"
        },
        {
          "step": "ruling",
          "text": "Hala Ṣaṣṭhī, Fuzhou, 1989: Tuesday 22 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "hala-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 6 Hala sasthi (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Hala Ṣaṣṭhī 1989 falls on Tuesday 22 August. Ṣaṣṭhī runs from 21:34 on Mon 21 Aug to 18:57 on Tue 22 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/hala-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/janmashtami",
      "festival": "janmashtami",
      "name": "Janmāṣṭamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28893,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-08-23T16:39:56+09:00",
          "utc": "1989-08-23T07:39:56Z",
          "ms": 619861195715.5541
        },
        "end": {
          "local": "1989-08-24T14:46:52+09:00",
          "utc": "1989-08-24T05:46:52Z",
          "ms": 619940812117.7937
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-23T16:39:56+09:00",
          "utc": "1989-08-23T07:39:56Z",
          "ms": 619861195715.5541
        },
        "end": {
          "local": "1989-08-24T14:46:52+09:00",
          "utc": "1989-08-24T05:46:52Z",
          "ms": 619940812117.7937
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-08-23",
          "window": {
            "start": {
              "local": "1989-08-24T00:41:29+09:00",
              "utc": "1989-08-23T15:41:29Z",
              "ms": 619890089166.8999
            },
            "end": {
              "local": "1989-08-24T01:29:29+09:00",
              "utc": "1989-08-23T16:29:29Z",
              "ms": 619892969166.8999
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-08-24",
          "window": {
            "start": {
              "local": "1989-08-25T00:41:13+09:00",
              "utc": "1989-08-24T15:41:13Z",
              "ms": 619976473228.6006
            },
            "end": {
              "local": "1989-08-25T01:29:13+09:00",
              "utc": "1989-08-24T16:29:13Z",
              "ms": 619979353228.6006
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 16:40 on Wed 23 Aug to 14:47 on Thu 24 Aug.",
          "fact": "1989-08-23T07:39:56Z → 1989-08-24T05:46:52Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:41–01:29 on the 23rd, 00:41–01:29 on the 24th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 28893 s"
        },
        {
          "step": "ruling",
          "text": "Janmāṣṭamī, Fuzhou, 1989: Wednesday 23 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "janmashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami."
          }
        ],
        "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.",
        "kaala": "nishita",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Janmāṣṭamī 1989 falls on Wednesday 23 August. Aṣṭamī runs from 16:40 on Wed 23 Aug to 14:47 on Thu 24 Aug and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/janmashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shitala-saptami",
      "festival": "shitala-saptami",
      "name": "Śītalā Saptamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11440,
      "anga": {
        "type": "tithi",
        "index": 21,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1989-08-22T18:57:04+09:00",
          "utc": "1989-08-22T09:57:04Z",
          "ms": 619783024317.721
        },
        "end": {
          "local": "1989-08-23T16:39:56+09:00",
          "utc": "1989-08-23T07:39:56Z",
          "ms": 619861195715.5541
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-22T18:57:04+09:00",
          "utc": "1989-08-22T09:57:04Z",
          "ms": 619783024317.721
        },
        "end": {
          "local": "1989-08-23T16:39:56+09:00",
          "utc": "1989-08-23T07:39:56Z",
          "ms": 619861195715.5541
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-22",
          "window": {
            "start": {
              "local": "1989-08-22T12:41:31+09:00",
              "utc": "1989-08-22T03:41:31Z",
              "ms": 619760491456.2676
            },
            "end": {
              "local": "1989-08-22T13:29:31+09:00",
              "utc": "1989-08-22T04:29:31Z",
              "ms": 619763371456.2676
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-08-23",
          "window": {
            "start": {
              "local": "1989-08-23T12:41:16+09:00",
              "utc": "1989-08-23T03:41:16Z",
              "ms": 619846876013.53
            },
            "end": {
              "local": "1989-08-23T13:29:16+09:00",
              "utc": "1989-08-23T04:29:16Z",
              "ms": 619849756013.53
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 18:57 on Tue 22 Aug to 16:40 on Wed 23 Aug.",
          "fact": "1989-08-22T09:57:04Z → 1989-08-23T07:39:56Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 22nd, 12:41–13:29 on the 23rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 11440 s"
        },
        {
          "step": "ruling",
          "text": "Śītalā Saptamī, Fuzhou, 1989: Wednesday 23 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shitala-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 7 Sitala saptami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śītalā Saptamī 1989 falls on Wednesday 23 August. Saptamī runs from 18:57 on Tue 22 Aug to 16:40 on Wed 23 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shitala-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-08-27",
      "festival": "ekadashi",
      "name": "Ajā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18855,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-08-26T12:23:13+09:00",
          "utc": "1989-08-26T03:23:13Z",
          "ms": 620104993163.3318
        },
        "end": {
          "local": "1989-08-27T11:54:59+09:00",
          "utc": "1989-08-27T02:54:59Z",
          "ms": 620189698566.8456
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-26T12:23:13+09:00",
          "utc": "1989-08-26T03:23:13Z",
          "ms": 620104993163.3318
        },
        "end": {
          "local": "1989-08-27T11:54:59+09:00",
          "utc": "1989-08-27T02:54:59Z",
          "ms": 620189698566.8456
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-08-26",
          "window": {
            "start": {
              "local": "1989-08-26T06:40:18+09:00",
              "utc": "1989-08-25T21:40:18Z",
              "ms": 620084417830.4794
            },
            "end": {
              "local": "1989-08-26T06:40:18+09:00",
              "utc": "1989-08-25T21:40:18Z",
              "ms": 620084417830.4794
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-08-27",
          "window": {
            "start": {
              "local": "1989-08-27T06:40:44+09:00",
              "utc": "1989-08-26T21:40:44Z",
              "ms": 620170843663.3256
            },
            "end": {
              "local": "1989-08-27T06:40:44+09:00",
              "utc": "1989-08-26T21:40:44Z",
              "ms": 620170843663.3256
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 12:23 on Sat 26 Aug to 11:55 on Sun 27 Aug.",
          "fact": "1989-08-26T03:23:13Z → 1989-08-27T02:54:59Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:40 on the 26th and 06:41 on the 27th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 26th and is on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 18855 s"
        },
        {
          "step": "ruling",
          "text": "Ajā Ekādaśī, Fuzhou, 1989: Sunday 27 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Ajā Ekādaśī 1989 falls on Sunday 27 August. Ekādaśī runs from 12:23 on Sat 26 Aug to 11:55 on Sun 27 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-08-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-08-28",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25219,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-08-28T11:55:53+09:00",
          "utc": "1989-08-28T02:55:53Z",
          "ms": 620276153300.0819
        },
        "end": {
          "local": "1989-08-29T12:25:16+09:00",
          "utc": "1989-08-29T03:25:16Z",
          "ms": 620364316290.6304
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-28T11:55:53+09:00",
          "utc": "1989-08-28T02:55:53Z",
          "ms": 620276153300.0819
        },
        "end": {
          "local": "1989-08-29T12:25:16+09:00",
          "utc": "1989-08-29T03:25:16Z",
          "ms": 620364316290.6304
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-08-28",
          "window": {
            "start": {
              "local": "1989-08-28T19:26:36+09:00",
              "utc": "1989-08-28T10:26:36Z",
              "ms": 620303196318.9966
            },
            "end": {
              "local": "1989-08-28T20:56:36+09:00",
              "utc": "1989-08-28T11:56:36Z",
              "ms": 620308596125.7607
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        },
        {
          "local_date": "1989-08-29",
          "window": {
            "start": {
              "local": "1989-08-29T19:25:35+09:00",
              "utc": "1989-08-29T10:25:35Z",
              "ms": 620389535308.147
            },
            "end": {
              "local": "1989-08-29T20:55:47+09:00",
              "utc": "1989-08-29T11:55:47Z",
              "ms": 620394946633.4586
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:56 on Mon 28 Aug to 12:25 on Tue 29 Aug.",
          "fact": "1989-08-28T02:55:53Z → 1989-08-29T03:25:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:27–20:57 on the 28th, 19:26–20:56 on the 29th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 90 of 90 minutes on the 28th and 0 of 90 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 25219 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Monday 28 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Monday 28 August. Trayodaśī runs from 11:56 on Mon 28 Aug to 12:25 on Tue 29 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-08-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/aghora-chaturdashi",
      "festival": "aghora-chaturdashi",
      "name": "Aghora Caturdaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21753,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-08-29T12:25:16+09:00",
          "utc": "1989-08-29T03:25:16Z",
          "ms": 620364316290.6304
        },
        "end": {
          "local": "1989-08-30T13:22:01+09:00",
          "utc": "1989-08-30T04:22:01Z",
          "ms": 620454120627.2214
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-29T12:25:16+09:00",
          "utc": "1989-08-29T03:25:16Z",
          "ms": 620364316290.6304
        },
        "end": {
          "local": "1989-08-30T13:22:01+09:00",
          "utc": "1989-08-30T04:22:01Z",
          "ms": 620454120627.2214
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-08-29",
          "window": {
            "start": {
              "local": "1989-08-29T19:25:35+09:00",
              "utc": "1989-08-29T10:25:35Z",
              "ms": 620389535308.147
            },
            "end": {
              "local": "1989-08-29T20:55:47+09:00",
              "utc": "1989-08-29T11:55:47Z",
              "ms": 620394946633.4586
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        },
        {
          "local_date": "1989-08-30",
          "window": {
            "start": {
              "local": "1989-08-30T19:24:34+09:00",
              "utc": "1989-08-30T10:24:34Z",
              "ms": 620475873767.4862
            },
            "end": {
              "local": "1989-08-30T20:54:57+09:00",
              "utc": "1989-08-30T11:54:57Z",
              "ms": 620481296662.5146
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 12:25 on Tue 29 Aug to 13:22 on Wed 30 Aug.",
          "fact": "1989-08-29T03:25:16Z → 1989-08-30T04:22:01Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:26–20:56 on the 29th, 19:25–20:55 on the 30th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during pradoṣa. It covers 90 of 90 minutes on the 29th and 0 of 90 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 21753 s"
        },
        {
          "step": "ruling",
          "text": "Aghora Caturdaśī, Fuzhou, 1989: Tuesday 29 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "aghora-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Aghora caturdasi (pradosa vyapini)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Aghora Caturdaśī 1989 falls on Tuesday 29 August. Caturdaśī runs from 12:25 on Tue 29 Aug to 13:22 on Wed 30 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/aghora-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-08-29",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-08-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39431,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-08-29T12:25:16+09:00",
          "utc": "1989-08-29T03:25:16Z",
          "ms": 620364316290.6304
        },
        "end": {
          "local": "1989-08-30T13:22:01+09:00",
          "utc": "1989-08-30T04:22:01Z",
          "ms": 620454120627.2214
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-29T12:25:16+09:00",
          "utc": "1989-08-29T03:25:16Z",
          "ms": 620364316290.6304
        },
        "end": {
          "local": "1989-08-30T13:22:01+09:00",
          "utc": "1989-08-30T04:22:01Z",
          "ms": 620454120627.2214
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-08-28",
          "window": {
            "start": {
              "local": "1989-08-29T00:40:06+09:00",
              "utc": "1989-08-28T15:40:06Z",
              "ms": 620322005594.3622
            },
            "end": {
              "local": "1989-08-29T01:28:06+09:00",
              "utc": "1989-08-28T16:28:06Z",
              "ms": 620324885594.3622
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-08-29",
          "window": {
            "start": {
              "local": "1989-08-30T00:39:48+09:00",
              "utc": "1989-08-29T15:39:48Z",
              "ms": 620408387778.0654
            },
            "end": {
              "local": "1989-08-30T01:27:48+09:00",
              "utc": "1989-08-29T16:27:48Z",
              "ms": 620411267778.0654
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 12:25 on Tue 29 Aug to 13:22 on Wed 30 Aug.",
          "fact": "1989-08-29T03:25:16Z → 1989-08-30T04:22:01Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:40–01:28 on the 28th, 00:40–01:28 on the 29th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 39431 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Tuesday 29 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-08-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-08-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Tuesday 29 August. Caturdaśī runs from 12:25 on Tue 29 Aug to 13:22 on Wed 30 Aug and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-08-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/rudra-vrata",
      "festival": "rudra-vrata",
      "name": "Rudra Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4653,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1989-08-31T14:44:31+09:00",
          "utc": "1989-08-31T05:44:31Z",
          "ms": 620545471412.5452
        },
        "end": {
          "local": "1989-09-01T16:30:31+09:00",
          "utc": "1989-09-01T07:30:31Z",
          "ms": 620638231277.9758
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-08-31T14:44:31+09:00",
          "utc": "1989-08-31T05:44:31Z",
          "ms": 620545471412.5452
        },
        "end": {
          "local": "1989-09-01T16:30:31+09:00",
          "utc": "1989-09-01T07:30:31Z",
          "ms": 620638231277.9758
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-08-31",
          "window": {
            "start": {
              "local": "1989-08-31T12:38:59+09:00",
              "utc": "1989-08-31T03:38:59Z",
              "ms": 620537938599.8225
            },
            "end": {
              "local": "1989-08-31T13:26:59+09:00",
              "utc": "1989-08-31T04:26:59Z",
              "ms": 620540818599.8225
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-09-01",
          "window": {
            "start": {
              "local": "1989-09-01T12:38:40+09:00",
              "utc": "1989-09-01T03:38:40Z",
              "ms": 620624319878.4331
            },
            "end": {
              "local": "1989-09-01T13:26:40+09:00",
              "utc": "1989-09-01T04:26:40Z",
              "ms": 620627199878.4331
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 14:45 on Thu 31 Aug to 16:31 on Fri 1 Sep.",
          "fact": "1989-08-31T05:44:31Z → 1989-09-01T07:30:31Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 31st, 12:39–13:27 on the 1st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 31st and 48 of 48 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 4653 s"
        },
        {
          "step": "ruling",
          "text": "Rudra Vrata, Fuzhou, 1989: Friday 1 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rudra-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Rudra vrata (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Rudra Vrata 1989 falls on Friday 1 September. Pratipadā runs from 14:45 on Thu 31 Aug to 16:31 on Fri 1 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/rudra-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/haritalika-vrata",
      "festival": "haritalika-vrata",
      "name": "Haritālikā Vrata",
      "everyday": "Hartalika Teej",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18614,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1989-09-02T18:36:35+09:00",
          "utc": "1989-09-02T09:36:35Z",
          "ms": 620732195203.2604
        },
        "end": {
          "local": "1989-09-03T20:57:41+09:00",
          "utc": "1989-09-03T11:57:41Z",
          "ms": 620827061002.3333
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-02T18:36:35+09:00",
          "utc": "1989-09-02T09:36:35Z",
          "ms": 620732195203.2604
        },
        "end": {
          "local": "1989-09-03T20:57:41+09:00",
          "utc": "1989-09-03T11:57:41Z",
          "ms": 620827061002.3333
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-09-02",
          "window": {
            "start": {
              "local": "1989-09-02T12:38:21+09:00",
              "utc": "1989-09-02T03:38:21Z",
              "ms": 620710700857.3848
            },
            "end": {
              "local": "1989-09-02T13:26:21+09:00",
              "utc": "1989-09-02T04:26:21Z",
              "ms": 620713580857.3848
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-09-03",
          "window": {
            "start": {
              "local": "1989-09-03T12:38:02+09:00",
              "utc": "1989-09-03T03:38:02Z",
              "ms": 620797081550.7408
            },
            "end": {
              "local": "1989-09-03T13:26:02+09:00",
              "utc": "1989-09-03T04:26:02Z",
              "ms": 620799961550.7408
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 18:37 on Sat 2 Sep to 20:58 on Sun 3 Sep.",
          "fact": "1989-09-02T09:36:35Z → 1989-09-03T11:57:41Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 2nd, 12:38–13:26 on the 3rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 2nd and 48 of 48 on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 18614 s"
        },
        {
          "step": "ruling",
          "text": "Haritālikā Vrata, Fuzhou, 1989: Sunday 3 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "haritalika-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Haritālikā Vrata (Hartalika Teej) 1989 falls on Sunday 3 September. Tṛtīyā runs from 18:37 on Sat 2 Sep to 20:58 on Sun 3 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/haritalika-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ganesha-chaturthi",
      "festival": "ganesha-chaturthi",
      "name": "Gaṇeśa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27099,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-09-03T20:57:41+09:00",
          "utc": "1989-09-03T11:57:41Z",
          "ms": 620827061002.3333
        },
        "end": {
          "local": "1989-09-04T23:26:46+09:00",
          "utc": "1989-09-04T14:26:46Z",
          "ms": 620922406467.9999
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-03T20:57:41+09:00",
          "utc": "1989-09-03T11:57:41Z",
          "ms": 620827061002.3333
        },
        "end": {
          "local": "1989-09-04T23:26:46+09:00",
          "utc": "1989-09-04T14:26:46Z",
          "ms": 620922406467.9999
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-09-03",
          "window": {
            "start": {
              "local": "1989-09-03T12:38:02+09:00",
              "utc": "1989-09-03T03:38:02Z",
              "ms": 620797081550.7408
            },
            "end": {
              "local": "1989-09-03T13:26:02+09:00",
              "utc": "1989-09-03T04:26:02Z",
              "ms": 620799961550.7408
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-09-04",
          "window": {
            "start": {
              "local": "1989-09-04T12:37:42+09:00",
              "utc": "1989-09-04T03:37:42Z",
              "ms": 620883461973.3102
            },
            "end": {
              "local": "1989-09-04T13:25:42+09:00",
              "utc": "1989-09-04T04:25:42Z",
              "ms": 620886341973.3102
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:58 on Sun 3 Sep to 23:27 on Mon 4 Sep.",
          "fact": "1989-09-03T11:57:41Z → 1989-09-04T14:26:46Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 3rd, 12:38–13:26 on the 4th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 27099 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Caturthī, Fuzhou, 1989: Monday 4 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ganesha-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Gaṇeśa Caturthī 1989 falls on Monday 4 September. Caturthī runs from 20:58 on Sun 3 Sep to 23:27 on Mon 4 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ganesha-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/rishi-panchami",
      "festival": "rishi-panchami",
      "name": "Ṛṣi Pañcamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36064,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1989-09-04T23:26:46+09:00",
          "utc": "1989-09-04T14:26:46Z",
          "ms": 620922406467.9999
        },
        "end": {
          "local": "1989-09-06T01:54:47+09:00",
          "utc": "1989-09-05T16:54:47Z",
          "ms": 621017686747.1116
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-04T23:26:46+09:00",
          "utc": "1989-09-04T14:26:46Z",
          "ms": 620922406467.9999
        },
        "end": {
          "local": "1989-09-06T01:54:47+09:00",
          "utc": "1989-09-05T16:54:47Z",
          "ms": 621017686747.1116
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-09-04",
          "window": {
            "start": {
              "local": "1989-09-04T12:37:42+09:00",
              "utc": "1989-09-04T03:37:42Z",
              "ms": 620883461973.3102
            },
            "end": {
              "local": "1989-09-04T13:25:42+09:00",
              "utc": "1989-09-04T04:25:42Z",
              "ms": 620886341973.3102
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-09-05",
          "window": {
            "start": {
              "local": "1989-09-05T12:37:22+09:00",
              "utc": "1989-09-05T03:37:22Z",
              "ms": 620969842140.4932
            },
            "end": {
              "local": "1989-09-05T13:25:22+09:00",
              "utc": "1989-09-05T04:25:22Z",
              "ms": 620972722140.4932
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 23:27 on Mon 4 Sep to 01:55 on Wed 6 Sep.",
          "fact": "1989-09-04T14:26:46Z → 1989-09-05T16:54:47Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 4th, 12:37–13:25 on the 5th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: disputed → only-day · margin 36064 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Pañcamī, Fuzhou, 1989: Tuesday 5 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rishi-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day"
          }
        ],
        "kaala": "madhyahna",
        "priority": "disputed",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Ṛṣi Pañcamī 1989 falls on Tuesday 5 September. Pañcamī runs from 23:27 on Mon 4 Sep to 01:55 on Wed 6 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/rishi-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/surya-shashthi-bhadrapada",
      "festival": "surya-shashthi-bhadrapada",
      "name": "Sūrya Ṣaṣṭhī (Bhādrapada)",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30339,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1989-09-06T01:54:47+09:00",
          "utc": "1989-09-05T16:54:47Z",
          "ms": 621017686747.1116
        },
        "end": {
          "local": "1989-09-07T04:11:03+09:00",
          "utc": "1989-09-06T19:11:03Z",
          "ms": 621112263122.2461
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-06T01:54:47+09:00",
          "utc": "1989-09-05T16:54:47Z",
          "ms": 621017686747.1116
        },
        "end": {
          "local": "1989-09-07T04:11:03+09:00",
          "utc": "1989-09-06T19:11:03Z",
          "ms": 621112263122.2461
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-09-06",
          "window": {
            "start": {
              "local": "1989-09-06T12:37:02+09:00",
              "utc": "1989-09-06T03:37:02Z",
              "ms": 621056222068.2698
            },
            "end": {
              "local": "1989-09-06T13:25:02+09:00",
              "utc": "1989-09-06T04:25:02Z",
              "ms": 621059102068.2698
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-09-07",
          "window": {
            "start": {
              "local": "1989-09-07T12:36:42+09:00",
              "utc": "1989-09-07T03:36:42Z",
              "ms": 621142601773.2456
            },
            "end": {
              "local": "1989-09-07T13:24:42+09:00",
              "utc": "1989-09-07T04:24:42Z",
              "ms": 621145481773.2456
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 01:55 on Wed 6 Sep to 04:11 on Thu 7 Sep.",
          "fact": "1989-09-05T16:54:47Z → 1989-09-06T19:11:03Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 6th, 12:37–13:25 on the 7th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 30339 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Fuzhou, 1989: Wednesday 6 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "surya-shashthi-bhadrapada",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Surya sasthi (paraviddha), Lolarka sasthi"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Sūrya Ṣaṣṭhī (Bhādrapada) 1989 falls on Wednesday 6 September. Ṣaṣṭhī runs from 01:55 on Wed 6 Sep to 04:11 on Thu 7 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/surya-shashthi-bhadrapada",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/muktabharana-vrata",
      "festival": "muktabharana-vrata",
      "name": "Muktābharaṇa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23516,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1989-09-07T04:11:03+09:00",
          "utc": "1989-09-06T19:11:03Z",
          "ms": 621112263122.2461
        },
        "end": {
          "local": "1989-09-08T06:04:25+09:00",
          "utc": "1989-09-07T21:04:25Z",
          "ms": 621205465111.5042
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-07T04:11:03+09:00",
          "utc": "1989-09-06T19:11:03Z",
          "ms": 621112263122.2461
        },
        "end": {
          "local": "1989-09-08T06:04:25+09:00",
          "utc": "1989-09-07T21:04:25Z",
          "ms": 621205465111.5042
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-09-07",
          "window": {
            "start": {
              "local": "1989-09-07T12:36:42+09:00",
              "utc": "1989-09-07T03:36:42Z",
              "ms": 621142601773.2456
            },
            "end": {
              "local": "1989-09-07T13:24:42+09:00",
              "utc": "1989-09-07T04:24:42Z",
              "ms": 621145481773.2456
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-09-08",
          "window": {
            "start": {
              "local": "1989-09-08T12:36:21+09:00",
              "utc": "1989-09-08T03:36:21Z",
              "ms": 621228981272.5322
            },
            "end": {
              "local": "1989-09-08T13:24:21+09:00",
              "utc": "1989-09-08T04:24:21Z",
              "ms": 621231861272.5322
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 04:11 on Thu 7 Sep to 06:04 on Fri 8 Sep.",
          "fact": "1989-09-06T19:11:03Z → 1989-09-07T21:04:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 7th, 12:36–13:24 on the 8th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 0 of 48 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 23516 s"
        },
        {
          "step": "ruling",
          "text": "Muktābharaṇa Vrata, Fuzhou, 1989: Thursday 7 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "muktabharana-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Muktabharana vrata (purvaviddha), Lalita saptami (Bengal & Orissa)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Muktābharaṇa Vrata 1989 falls on Thursday 7 September. Saptamī runs from 04:11 on Thu 7 Sep to 06:04 on Fri 8 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/muktabharana-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/radhashtami",
      "festival": "radhashtami",
      "name": "Rādhāṣṭamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18687,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-09-08T06:04:25+09:00",
          "utc": "1989-09-07T21:04:25Z",
          "ms": 621205465111.5042
        },
        "end": {
          "local": "1989-09-09T07:24:34+09:00",
          "utc": "1989-09-08T22:24:34Z",
          "ms": 621296674071.2346
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-08T06:04:25+09:00",
          "utc": "1989-09-07T21:04:25Z",
          "ms": 621205465111.5042
        },
        "end": {
          "local": "1989-09-09T07:24:34+09:00",
          "utc": "1989-09-08T22:24:34Z",
          "ms": 621296674071.2346
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-09-08",
          "window": {
            "start": {
              "local": "1989-09-08T12:36:21+09:00",
              "utc": "1989-09-08T03:36:21Z",
              "ms": 621228981272.5322
            },
            "end": {
              "local": "1989-09-08T13:24:21+09:00",
              "utc": "1989-09-08T04:24:21Z",
              "ms": 621231861272.5322
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-09-09",
          "window": {
            "start": {
              "local": "1989-09-09T12:36:01+09:00",
              "utc": "1989-09-09T03:36:01Z",
              "ms": 621315360583.8713
            },
            "end": {
              "local": "1989-09-09T13:24:01+09:00",
              "utc": "1989-09-09T04:24:01Z",
              "ms": 621318240583.8713
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 06:04 on Fri 8 Sep to 07:25 on Sat 9 Sep.",
          "fact": "1989-09-07T21:04:25Z → 1989-09-08T22:24:34Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 8th, 12:36–13:24 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 18687 s"
        },
        {
          "step": "ruling",
          "text": "Rādhāṣṭamī, Fuzhou, 1989: Friday 8 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "radhashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Rādhāṣṭamī 1989 falls on Friday 8 September. Aṣṭamī runs from 06:04 on Fri 8 Sep to 07:25 on Sat 9 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/radhashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-09-12",
      "festival": "ekadashi",
      "name": "Parivartanī Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 849,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-09-11T07:56:09+09:00",
          "utc": "1989-09-10T22:56:09Z",
          "ms": 621471368993.2246
        },
        "end": {
          "local": "1989-09-12T07:01:28+09:00",
          "utc": "1989-09-11T22:01:28Z",
          "ms": 621554488419.0183
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-11T07:56:09+09:00",
          "utc": "1989-09-10T22:56:09Z",
          "ms": 621471368993.2246
        },
        "end": {
          "local": "1989-09-12T07:01:28+09:00",
          "utc": "1989-09-11T22:01:28Z",
          "ms": 621554488419.0183
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-09-11",
          "window": {
            "start": {
              "local": "1989-09-11T06:46:55+09:00",
              "utc": "1989-09-10T21:46:55Z",
              "ms": 621467215013.7987
            },
            "end": {
              "local": "1989-09-11T06:46:55+09:00",
              "utc": "1989-09-10T21:46:55Z",
              "ms": 621467215013.7987
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-09-12",
          "window": {
            "start": {
              "local": "1989-09-12T06:47:19+09:00",
              "utc": "1989-09-11T21:47:19Z",
              "ms": 621553639006.383
            },
            "end": {
              "local": "1989-09-12T06:47:19+09:00",
              "utc": "1989-09-11T21:47:19Z",
              "ms": 621553639006.383
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 07:56 on Mon 11 Sep to 07:01 on Tue 12 Sep.",
          "fact": "1989-09-10T22:56:09Z → 1989-09-11T22:01:28Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:47 on the 11th and 06:47 on the 12th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 11th and is on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 849 s"
        },
        {
          "step": "ruling",
          "text": "Parivartanī Ekādaśī, Fuzhou, 1989: Tuesday 12 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Parivartanī Ekādaśī 1989 falls on Tuesday 12 September. Ekādaśī runs from 07:56 on Mon 11 Sep to 07:01 on Tue 12 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-09-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vamana-jayanti",
      "festival": "vamana-jayanti",
      "name": "Vāmana Jayantī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20009,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1989-09-12T07:01:28+09:00",
          "utc": "1989-09-11T22:01:28Z",
          "ms": 621554488419.0183
        },
        "end": {
          "local": "1989-09-13T05:21:33+09:00",
          "utc": "1989-09-12T20:21:33Z",
          "ms": 621634893291.1753
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-12T07:01:28+09:00",
          "utc": "1989-09-11T22:01:28Z",
          "ms": 621554488419.0183
        },
        "end": {
          "local": "1989-09-13T05:21:33+09:00",
          "utc": "1989-09-12T20:21:33Z",
          "ms": 621634893291.1753
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-09-12",
          "window": {
            "start": {
              "local": "1989-09-12T12:34:58+09:00",
              "utc": "1989-09-12T03:34:58Z",
              "ms": 621574497578.1292
            },
            "end": {
              "local": "1989-09-12T13:22:58+09:00",
              "utc": "1989-09-12T04:22:58Z",
              "ms": 621577377578.1292
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-09-13",
          "window": {
            "start": {
              "local": "1989-09-13T12:34:36+09:00",
              "utc": "1989-09-13T03:34:36Z",
              "ms": 621660876329.844
            },
            "end": {
              "local": "1989-09-13T13:22:36+09:00",
              "utc": "1989-09-13T04:22:36Z",
              "ms": 621663756329.844
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 07:01 on Tue 12 Sep to 05:22 on Wed 13 Sep.",
          "fact": "1989-09-11T22:01:28Z → 1989-09-12T20:21:33Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 12th, 12:35–13:23 on the 13th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 20009 s"
        },
        {
          "step": "ruling",
          "text": "Vāmana Jayantī, Fuzhou, 1989: Tuesday 12 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vamana-jayanti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vāmana Jayantī 1989 falls on Tuesday 12 September. Dvādaśī runs from 07:01 on Tue 12 Sep to 05:22 on Wed 13 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vamana-jayanti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-09-13",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22726,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-09-13T05:21:33+09:00",
          "utc": "1989-09-12T20:21:33Z",
          "ms": 621634893291.1753
        },
        "end": {
          "local": "1989-09-14T03:01:24+09:00",
          "utc": "1989-09-13T18:01:24Z",
          "ms": 621712884252.216
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-13T05:21:33+09:00",
          "utc": "1989-09-12T20:21:33Z",
          "ms": 621634893291.1753
        },
        "end": {
          "local": "1989-09-14T03:01:24+09:00",
          "utc": "1989-09-13T18:01:24Z",
          "ms": 621712884252.216
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-09-12",
          "window": {
            "start": {
              "local": "1989-09-12T19:10:36+09:00",
              "utc": "1989-09-12T10:10:36Z",
              "ms": 621598236149.8752
            },
            "end": {
              "local": "1989-09-12T20:43:33+09:00",
              "utc": "1989-09-12T11:43:33Z",
              "ms": 621603813058.5277
            }
          },
          "covered_min": 0,
          "window_min": 93,
          "qualifies": false
        },
        {
          "local_date": "1989-09-13",
          "window": {
            "start": {
              "local": "1989-09-13T19:09:30+09:00",
              "utc": "1989-09-13T10:09:30Z",
              "ms": 621684569694.9191
            },
            "end": {
              "local": "1989-09-13T20:42:39+09:00",
              "utc": "1989-09-13T11:42:39Z",
              "ms": 621690158656.1787
            }
          },
          "covered_min": 93,
          "window_min": 93,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 05:22 on Wed 13 Sep to 03:01 on Thu 14 Sep.",
          "fact": "1989-09-12T20:21:33Z → 1989-09-13T18:01:24Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:11–20:44 on the 12th, 19:09–20:43 on the 13th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 93 minutes on the 12th and 93 of 93 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 22726 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Wednesday 13 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Wednesday 13 September. Trayodaśī runs from 05:22 on Wed 13 Sep to 03:01 on Thu 14 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-09-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ananta-chaturdashi",
      "festival": "ananta-chaturdashi",
      "name": "Ananta Caturdaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13603,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-09-14T03:01:24+09:00",
          "utc": "1989-09-13T18:01:24Z",
          "ms": 621712884252.216
        },
        "end": {
          "local": "1989-09-15T00:08:11+09:00",
          "utc": "1989-09-14T15:08:11Z",
          "ms": 621788891477.6268
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-14T03:01:24+09:00",
          "utc": "1989-09-13T18:01:24Z",
          "ms": 621712884252.216
        },
        "end": {
          "local": "1989-09-15T00:08:11+09:00",
          "utc": "1989-09-14T15:08:11Z",
          "ms": 621788891477.6268
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "1989-09-14",
          "window": {
            "start": {
              "local": "1989-09-14T06:48:07+09:00",
              "utc": "1989-09-13T21:48:07Z",
              "ms": 621726486904.3661
            },
            "end": {
              "local": "1989-09-14T09:16:10+09:00",
              "utc": "1989-09-14T00:16:10Z",
              "ms": 621735370140.3492
            }
          },
          "covered_min": 148,
          "window_min": 148,
          "qualifies": true
        },
        {
          "local_date": "1989-09-15",
          "window": {
            "start": {
              "local": "1989-09-15T06:48:31+09:00",
              "utc": "1989-09-14T21:48:31Z",
              "ms": 621812910842.7229
            },
            "end": {
              "local": "1989-09-15T09:16:16+09:00",
              "utc": "1989-09-15T00:16:16Z",
              "ms": 621821775943.5364
            }
          },
          "covered_min": 0,
          "window_min": 148,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 03:01 on Thu 14 Sep to 00:08 on Fri 15 Sep.",
          "fact": "1989-09-13T18:01:24Z → 1989-09-14T15:08:11Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:48–09:16 on the 14th, 06:49–09:16 on the 15th.",
          "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 148 of 148 minutes on the 14th and 0 of 148 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one morning qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 13603 s"
        },
        {
          "step": "ruling",
          "text": "Ananta Caturdaśī, Fuzhou, 1989: Thursday 14 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ananta-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 14 Ananta caturdasi (covering three muhurtas from sunrise, but one muhurta in Bengal)."
          }
        ],
        "not_evaluated": "In Bengal the row asks for one muhūrta from sunrise; that reading is not applied.",
        "kaala": "udaya-3",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Ananta Caturdaśī 1989 falls on Thursday 14 September. Caturdaśī runs from 03:01 on Thu 14 Sep to 00:08 on Fri 15 Sep and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ananta-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-09-18",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35931,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-09-18T09:08:31+08:00",
          "utc": "1989-09-18T01:08:31Z",
          "ms": 622084110615.6946
        },
        "end": {
          "local": "1989-09-19T05:51:01+08:00",
          "utc": "1989-09-18T21:51:01Z",
          "ms": 622158661247.3694
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-18T09:08:31+08:00",
          "utc": "1989-09-18T01:08:31Z",
          "ms": 622084110615.6946
        },
        "end": {
          "local": "1989-09-19T05:51:01+08:00",
          "utc": "1989-09-18T21:51:01Z",
          "ms": 622158661247.3694
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-09-17",
          "window": {
            "start": {
              "local": "1989-09-17T19:10:14+08:00",
              "utc": "1989-09-17T11:10:14Z",
              "ms": 622033813630.0298
            },
            "end": {
              "local": "1989-09-17T19:10:14+08:00",
              "utc": "1989-09-17T11:10:14Z",
              "ms": 622033813630.0298
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-09-18",
          "window": {
            "start": {
              "local": "1989-09-18T19:52:10+08:00",
              "utc": "1989-09-18T11:52:10Z",
              "ms": 622122730392.9347
            },
            "end": {
              "local": "1989-09-18T19:52:10+08:00",
              "utc": "1989-09-18T11:52:10Z",
              "ms": 622122730392.9347
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 09:09 on Mon 18 Sep to 05:51 on Tue 19 Sep.",
          "fact": "1989-09-18T01:08:31Z → 1989-09-18T21:51:01Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:10 on the 17th and 19:52 on the 18th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 17th and is on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 35931 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Monday 18 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Monday 18 September. Caturthī runs from 09:09 on Mon 18 Sep to 05:51 on Tue 19 Sep and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-09-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/chandra-shashthi",
      "festival": "chandra-shashthi",
      "name": "Candra Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10959,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1989-09-20T02:57:04+08:00",
          "utc": "1989-09-19T18:57:04Z",
          "ms": 622234624236.7006
        },
        "end": {
          "local": "1989-09-21T00:34:10+08:00",
          "utc": "1989-09-20T16:34:10Z",
          "ms": 622312449730.294
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-20T02:57:04+08:00",
          "utc": "1989-09-19T18:57:04Z",
          "ms": 622234624236.7006
        },
        "end": {
          "local": "1989-09-21T00:34:10+08:00",
          "utc": "1989-09-20T16:34:10Z",
          "ms": 622312449730.294
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-09-19",
          "window": {
            "start": {
              "local": "1989-09-19T20:39:01+08:00",
              "utc": "1989-09-19T12:39:01Z",
              "ms": 622211940664.5935
            },
            "end": {
              "local": "1989-09-19T20:39:01+08:00",
              "utc": "1989-09-19T12:39:01Z",
              "ms": 622211940664.5935
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-09-20",
          "window": {
            "start": {
              "local": "1989-09-20T21:31:31+08:00",
              "utc": "1989-09-20T13:31:31Z",
              "ms": 622301490697.2257
            },
            "end": {
              "local": "1989-09-20T21:31:31+08:00",
              "utc": "1989-09-20T13:31:31Z",
              "ms": 622301490697.2257
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 02:57 on Wed 20 Sep to 00:34 on Thu 21 Sep.",
          "fact": "1989-09-19T18:57:04Z → 1989-09-20T16:34:10Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:39 on the 19th and 21:32 on the 20th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 19th and is on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 10959 s"
        },
        {
          "step": "ruling",
          "text": "Candra Ṣaṣṭhī, Fuzhou, 1989: Wednesday 20 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "chandra-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)."
          }
        ],
        "kaala": "moonrise",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Candra Ṣaṣṭhī 1989 falls on Wednesday 20 September. Ṣaṣṭhī runs from 02:57 on Wed 20 Sep to 00:34 on Thu 21 Sep and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/chandra-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/mahalakshmi-vrata-samapana",
      "festival": "mahalakshmi-vrata-samapana",
      "name": "Mahālakṣmī Vrata Samāpana",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-21",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 1126,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-09-21T22:47:59+08:00",
          "utc": "1989-09-21T14:47:59Z",
          "ms": 622392479068.6022
        },
        "end": {
          "local": "1989-09-22T21:41:57+08:00",
          "utc": "1989-09-22T13:41:57Z",
          "ms": 622474916927.7863
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-21T22:47:59+08:00",
          "utc": "1989-09-21T14:47:59Z",
          "ms": 622392479068.6022
        },
        "end": {
          "local": "1989-09-22T21:41:57+08:00",
          "utc": "1989-09-22T13:41:57Z",
          "ms": 622474916927.7863
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-09-21",
          "window": {
            "start": {
              "local": "1989-09-21T22:29:13+08:00",
              "utc": "1989-09-21T14:29:13Z",
              "ms": 622391352870.9183
            },
            "end": {
              "local": "1989-09-21T22:29:13+08:00",
              "utc": "1989-09-21T14:29:13Z",
              "ms": 622391352870.9183
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-09-22",
          "window": {
            "start": {
              "local": "1989-09-22T23:30:16+08:00",
              "utc": "1989-09-22T15:30:16Z",
              "ms": 622481415760.3989
            },
            "end": {
              "local": "1989-09-22T23:30:16+08:00",
              "utc": "1989-09-22T15:30:16Z",
              "ms": 622481415760.3989
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 22:48 on Thu 21 Sep to 21:42 on Fri 22 Sep.",
          "fact": "1989-09-21T14:47:59Z → 1989-09-22T13:41:57Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:29 on the 21st and 23:30 on the 22nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is not on the 21st and is not on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Neither moonrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 1126 s"
        },
        {
          "step": "ruling",
          "text": "Mahālakṣmī Vrata Samāpana, Fuzhou, 1989: Thursday 21 September.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahalakshmi-vrata-samapana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja"
          }
        ],
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-21",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-21",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Mahālakṣmī Vrata Samāpana 1989 falls on Thursday 21 September. Aṣṭamī runs from 22:48 on Thu 21 Sep to 21:42 on Fri 22 Sep, and is current at moonrise on neither day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/mahalakshmi-vrata-samapana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/jitashtami",
      "festival": "jitashtami",
      "name": "Jitāṣṭamī",
      "everyday": "Jitiya",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7651,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-09-21T22:47:59+08:00",
          "utc": "1989-09-21T14:47:59Z",
          "ms": 622392479068.6022
        },
        "end": {
          "local": "1989-09-22T21:41:57+08:00",
          "utc": "1989-09-22T13:41:57Z",
          "ms": 622474916927.7863
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-21T22:47:59+08:00",
          "utc": "1989-09-21T14:47:59Z",
          "ms": 622392479068.6022
        },
        "end": {
          "local": "1989-09-22T21:41:57+08:00",
          "utc": "1989-09-22T13:41:57Z",
          "ms": 622474916927.7863
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-09-21",
          "window": {
            "start": {
              "local": "1989-09-21T18:00:35+08:00",
              "utc": "1989-09-21T10:00:35Z",
              "ms": 622375234900.6508
            },
            "end": {
              "local": "1989-09-21T19:35:21+08:00",
              "utc": "1989-09-21T11:35:21Z",
              "ms": 622380920913.1068
            }
          },
          "covered_min": 0,
          "window_min": 95,
          "qualifies": false
        },
        {
          "local_date": "1989-09-22",
          "window": {
            "start": {
              "local": "1989-09-22T17:59:28+08:00",
              "utc": "1989-09-22T09:59:28Z",
              "ms": 622461568092.8658
            },
            "end": {
              "local": "1989-09-22T19:34:26+08:00",
              "utc": "1989-09-22T11:34:26Z",
              "ms": 622467266293.367
            }
          },
          "covered_min": 95,
          "window_min": 95,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 22:48 on Thu 21 Sep to 21:42 on Fri 22 Sep.",
          "fact": "1989-09-21T14:47:59Z → 1989-09-22T13:41:57Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:01–19:35 on the 21st, 17:59–19:34 on the 22nd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during pradoṣa. It covers 0 of 95 minutes on the 21st and 95 of 95 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7651 s"
        },
        {
          "step": "ruling",
          "text": "Jitāṣṭamī, Fuzhou, 1989: Friday 22 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "jitashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja"
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Jitāṣṭamī (Jitiya) 1989 falls on Friday 22 September. Aṣṭamī runs from 22:48 on Thu 21 Sep to 21:42 on Fri 22 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/jitashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-09-25",
      "festival": "ekadashi",
      "name": "Indirā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27123,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-09-24T21:31:10+08:00",
          "utc": "1989-09-24T13:31:10Z",
          "ms": 622647070214.0547
        },
        "end": {
          "local": "1989-09-25T22:20:57+08:00",
          "utc": "1989-09-25T14:20:57Z",
          "ms": 622736456753.8652
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-24T21:31:10+08:00",
          "utc": "1989-09-24T13:31:10Z",
          "ms": 622647070214.0547
        },
        "end": {
          "local": "1989-09-25T22:20:57+08:00",
          "utc": "1989-09-25T14:20:57Z",
          "ms": 622736456753.8652
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-09-25",
          "window": {
            "start": {
              "local": "1989-09-25T05:52:34+08:00",
              "utc": "1989-09-24T21:52:34Z",
              "ms": 622677154273.5505
            },
            "end": {
              "local": "1989-09-25T05:52:34+08:00",
              "utc": "1989-09-24T21:52:34Z",
              "ms": 622677154273.5505
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-09-26",
          "window": {
            "start": {
              "local": "1989-09-26T05:52:59+08:00",
              "utc": "1989-09-25T21:52:59Z",
              "ms": 622763579371.5354
            },
            "end": {
              "local": "1989-09-26T05:52:59+08:00",
              "utc": "1989-09-25T21:52:59Z",
              "ms": 622763579371.5354
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 21:31 on Sun 24 Sep to 22:21 on Mon 25 Sep.",
          "fact": "1989-09-24T13:31:10Z → 1989-09-25T14:20:57Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:53 on the 25th and 05:53 on the 26th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 25th and is not on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 27123 s"
        },
        {
          "step": "ruling",
          "text": "Indirā Ekādaśī, Fuzhou, 1989: Monday 25 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Indirā Ekādaśī 1989 falls on Monday 25 September. Ekādaśī runs from 21:31 on Sun 24 Sep to 22:21 on Mon 25 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-09-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-09-27",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15013,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-09-26T23:41:02+08:00",
          "utc": "1989-09-26T15:41:02Z",
          "ms": 622827662441.3545
        },
        "end": {
          "local": "1989-09-28T01:25:43+08:00",
          "utc": "1989-09-27T17:25:43Z",
          "ms": 622920342765.6288
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-26T23:41:02+08:00",
          "utc": "1989-09-26T15:41:02Z",
          "ms": 622827662441.3545
        },
        "end": {
          "local": "1989-09-28T01:25:43+08:00",
          "utc": "1989-09-27T17:25:43Z",
          "ms": 622920342765.6288
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-09-26",
          "window": {
            "start": {
              "local": "1989-09-26T17:55:02+08:00",
              "utc": "1989-09-26T09:55:02Z",
              "ms": 622806902149.6361
            },
            "end": {
              "local": "1989-09-26T19:30:49+08:00",
              "utc": "1989-09-26T11:30:49Z",
              "ms": 622812649150.6841
            }
          },
          "covered_min": 0,
          "window_min": 96,
          "qualifies": false
        },
        {
          "local_date": "1989-09-27",
          "window": {
            "start": {
              "local": "1989-09-27T17:53:56+08:00",
              "utc": "1989-09-27T09:53:56Z",
              "ms": 622893236114.523
            },
            "end": {
              "local": "1989-09-27T19:29:55+08:00",
              "utc": "1989-09-27T11:29:55Z",
              "ms": 622898995318.2184
            }
          },
          "covered_min": 96,
          "window_min": 96,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 23:41 on Tue 26 Sep to 01:26 on Thu 28 Sep.",
          "fact": "1989-09-26T15:41:02Z → 1989-09-27T17:25:43Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:55–19:31 on the 26th, 17:54–19:30 on the 27th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 96 minutes on the 26th and 96 of 96 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 15013 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Wednesday 27 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Wednesday 27 September. Trayodaśī runs from 23:41 on Tue 26 Sep to 01:26 on Thu 28 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-09-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-09-28",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4070,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-09-28T01:25:43+08:00",
          "utc": "1989-09-27T17:25:43Z",
          "ms": 622920342765.6288
        },
        "end": {
          "local": "1989-09-29T03:29:22+08:00",
          "utc": "1989-09-28T19:29:22Z",
          "ms": 623014161614.1814
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-28T01:25:43+08:00",
          "utc": "1989-09-27T17:25:43Z",
          "ms": 622920342765.6288
        },
        "end": {
          "local": "1989-09-29T03:29:22+08:00",
          "utc": "1989-09-28T19:29:22Z",
          "ms": 623014161614.1814
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-09-27",
          "window": {
            "start": {
              "local": "1989-09-27T23:29:53+08:00",
              "utc": "1989-09-27T15:29:53Z",
              "ms": 622913393128.3806
            },
            "end": {
              "local": "1989-09-28T00:17:53+08:00",
              "utc": "1989-09-27T16:17:53Z",
              "ms": 622916273128.3806
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-09-28",
          "window": {
            "start": {
              "local": "1989-09-28T23:29:33+08:00",
              "utc": "1989-09-28T15:29:33Z",
              "ms": 622999773073.2017
            },
            "end": {
              "local": "1989-09-29T00:17:33+08:00",
              "utc": "1989-09-28T16:17:33Z",
              "ms": 623002653073.2017
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 01:26 on Thu 28 Sep to 03:29 on Fri 29 Sep.",
          "fact": "1989-09-27T17:25:43Z → 1989-09-28T19:29:22Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:30–00:18 on the 27th, 23:30–00:18 on the 28th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 4070 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Thursday 28 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Thursday 28 September. Caturdaśī runs from 01:26 on Thu 28 Sep to 03:29 on Fri 29 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-09-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/mahalaya-amavasya",
      "festival": "mahalaya-amavasya",
      "name": "Mahālaya Amāvāsyā",
      "everyday": "Sarvapitṛ Amāvāsyā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26245,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1989-09-29T03:29:22+08:00",
          "utc": "1989-09-28T19:29:22Z",
          "ms": 623014161614.1814
        },
        "end": {
          "local": "1989-09-30T05:46:51+08:00",
          "utc": "1989-09-29T21:46:51Z",
          "ms": 623108811392.3721
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-29T03:29:22+08:00",
          "utc": "1989-09-28T19:29:22Z",
          "ms": 623014161614.1814
        },
        "end": {
          "local": "1989-09-30T05:46:51+08:00",
          "utc": "1989-09-29T21:46:51Z",
          "ms": 623108811392.3721
        }
      },
      "kaala": "aparahna",
      "days": [
        {
          "local_date": "1989-09-29",
          "window": {
            "start": {
              "local": "1989-09-29T13:04:45+08:00",
              "utc": "1989-09-29T05:04:45Z",
              "ms": 623048685191.2402
            },
            "end": {
              "local": "1989-09-29T15:28:15+08:00",
              "utc": "1989-09-29T07:28:15Z",
              "ms": 623057294976.2117
            }
          },
          "covered_min": 143,
          "window_min": 143,
          "qualifies": true
        },
        {
          "local_date": "1989-09-30",
          "window": {
            "start": {
              "local": "1989-09-30T13:04:16+08:00",
              "utc": "1989-09-30T05:04:16Z",
              "ms": 623135056395.6555
            },
            "end": {
              "local": "1989-09-30T15:27:28+08:00",
              "utc": "1989-09-30T07:27:28Z",
              "ms": 623143647944.1641
            }
          },
          "covered_min": 0,
          "window_min": 143,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 03:29 on Fri 29 Sep to 05:47 on Sat 30 Sep.",
          "fact": "1989-09-28T19:29:22Z → 1989-09-29T21:46:51Z"
        },
        {
          "step": "kaala",
          "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:05–15:28 on the 29th, 13:04–15:27 on the 30th.",
          "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during aparāhṇa. It covers 143 of 143 minutes on the 29th and 0 of 143 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 26245 s"
        },
        {
          "step": "ruling",
          "text": "Mahālaya Amāvāsyā, Fuzhou, 1989: Friday 29 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahalaya-amavasya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 30 Mahalaya amavasya (aparahnavyapini)"
          }
        ],
        "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.",
        "kaala": "aparahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Mahālaya Amāvāsyā 1989 falls on Friday 29 September. Amāvasyā runs from 03:29 on Fri 29 Sep to 05:47 on Sat 30 Sep and covers all of aparāhṇa that afternoon.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/mahalaya-amavasya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/navaratra-arambha",
      "festival": "navaratra-arambha",
      "name": "Navarātrārambha",
      "everyday": "Navratri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-09-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11694,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1989-09-30T05:46:51+08:00",
          "utc": "1989-09-29T21:46:51Z",
          "ms": 623108811392.3721
        },
        "end": {
          "local": "1989-10-01T08:13:27+08:00",
          "utc": "1989-10-01T00:13:27Z",
          "ms": 623204007498.4692
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-09-30T05:46:51+08:00",
          "utc": "1989-09-29T21:46:51Z",
          "ms": 623108811392.3721
        },
        "end": {
          "local": "1989-10-01T08:13:27+08:00",
          "utc": "1989-10-01T00:13:27Z",
          "ms": 623204007498.4692
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-09-30",
          "window": {
            "start": {
              "local": "1989-09-30T11:28:41+08:00",
              "utc": "1989-09-30T03:28:41Z",
              "ms": 623129320621.4011
            },
            "end": {
              "local": "1989-09-30T12:16:41+08:00",
              "utc": "1989-09-30T04:16:41Z",
              "ms": 623132200621.4011
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-10-01",
          "window": {
            "start": {
              "local": "1989-10-01T11:28:21+08:00",
              "utc": "1989-10-01T03:28:21Z",
              "ms": 623215701211.7437
            },
            "end": {
              "local": "1989-10-01T12:16:21+08:00",
              "utc": "1989-10-01T04:16:21Z",
              "ms": 623218581211.7437
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 05:47 on Sat 30 Sep to 08:13 on Sun 1 Oct.",
          "fact": "1989-09-29T21:46:51Z → 1989-10-01T00:13:27Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 30th, 11:28–12:16 on the 1st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 11694 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha, Fuzhou, 1989: Saturday 30 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "navaratra-arambha",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Navaratrarambha (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-09-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-09-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Navarātrārambha (Navratri) 1989 falls on Saturday 30 September. Pratipadā runs from 05:47 on Sat 30 Sep to 08:13 on Sun 1 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/navaratra-arambha",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-10-04",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3504,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-10-03T13:14:07+08:00",
          "utc": "1989-10-03T05:14:07Z",
          "ms": 623394846803.3313
        },
        "end": {
          "local": "1989-10-04T15:36:06+08:00",
          "utc": "1989-10-04T07:36:06Z",
          "ms": 623489765718.3441
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-03T13:14:07+08:00",
          "utc": "1989-10-03T05:14:07Z",
          "ms": 623394846803.3313
        },
        "end": {
          "local": "1989-10-04T15:36:06+08:00",
          "utc": "1989-10-04T07:36:06Z",
          "ms": 623489765718.3441
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-10-03",
          "window": {
            "start": {
              "local": "1989-10-03T11:27:43+08:00",
              "utc": "1989-10-03T03:27:43Z",
              "ms": 623388463266.1091
            },
            "end": {
              "local": "1989-10-03T12:15:43+08:00",
              "utc": "1989-10-03T04:15:43Z",
              "ms": 623391343266.1091
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-10-04",
          "window": {
            "start": {
              "local": "1989-10-04T11:27:25+08:00",
              "utc": "1989-10-04T03:27:25Z",
              "ms": 623474844764.8584
            },
            "end": {
              "local": "1989-10-04T12:15:25+08:00",
              "utc": "1989-10-04T04:15:25Z",
              "ms": 623477724764.8584
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:14 on Tue 3 Oct to 15:36 on Wed 4 Oct.",
          "fact": "1989-10-03T05:14:07Z → 1989-10-04T07:36:06Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 on the 3rd, 11:27–12:15 on the 4th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 3504 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Wednesday 4 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Wednesday 4 October. Caturthī runs from 13:14 on Tue 3 Oct to 15:36 on Wed 4 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-10-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/durga-saptami",
      "festival": "durga-saptami",
      "name": "Durgā Saptamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33930,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1989-10-06T19:24:14+08:00",
          "utc": "1989-10-06T11:24:14Z",
          "ms": 623676254167.843
        },
        "end": {
          "local": "1989-10-07T20:32:48+08:00",
          "utc": "1989-10-07T12:32:48Z",
          "ms": 623766768065.3822
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-06T19:24:14+08:00",
          "utc": "1989-10-06T11:24:14Z",
          "ms": 623676254167.843
        },
        "end": {
          "local": "1989-10-07T20:32:48+08:00",
          "utc": "1989-10-07T12:32:48Z",
          "ms": 623766768065.3822
        }
      },
      "kaala": "udaya-1",
      "days": [
        {
          "local_date": "1989-10-07",
          "window": {
            "start": {
              "local": "1989-10-07T05:57:50+08:00",
              "utc": "1989-10-06T21:57:50Z",
              "ms": 623714270149.4651
            },
            "end": {
              "local": "1989-10-07T06:44:52+08:00",
              "utc": "1989-10-06T22:44:52Z",
              "ms": 623717091644.205
            }
          },
          "covered_min": 47,
          "window_min": 47,
          "qualifies": true
        },
        {
          "local_date": "1989-10-08",
          "window": {
            "start": {
              "local": "1989-10-08T05:58:18+08:00",
              "utc": "1989-10-07T21:58:18Z",
              "ms": 623800698183.4282
            },
            "end": {
              "local": "1989-10-08T06:45:14+08:00",
              "utc": "1989-10-07T22:45:14Z",
              "ms": 623803513668.0366
            }
          },
          "covered_min": 0,
          "window_min": 47,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 19:24 on Fri 6 Oct to 20:33 on Sat 7 Oct.",
          "fact": "1989-10-06T11:24:14Z → 1989-10-07T12:32:48Z"
        },
        {
          "step": "kaala",
          "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:58–06:45 on the 7th, 05:58–06:45 on the 8th.",
          "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 47 of 47 minutes on the 7th and 0 of 47 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one morning qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 33930 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Saptamī, Fuzhou, 1989: Saturday 7 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "durga-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise"
          }
        ],
        "kaala": "udaya-1",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Durgā Saptamī 1989 falls on Saturday 7 October. Saptamī runs from 19:24 on Fri 6 Oct to 20:33 on Sat 7 Oct and covers all of the first muhūrta after sunrise that morning.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/durga-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/mahashtami",
      "festival": "mahashtami",
      "name": "Mahāṣṭamī",
      "everyday": "Durga Ashtami",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29897,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-10-07T20:32:48+08:00",
          "utc": "1989-10-07T12:32:48Z",
          "ms": 623766768065.3822
        },
        "end": {
          "local": "1989-10-08T21:00:33+08:00",
          "utc": "1989-10-08T13:00:33Z",
          "ms": 623854832725.7767
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-07T20:32:48+08:00",
          "utc": "1989-10-07T12:32:48Z",
          "ms": 623766768065.3822
        },
        "end": {
          "local": "1989-10-08T21:00:33+08:00",
          "utc": "1989-10-08T13:00:33Z",
          "ms": 623854832725.7767
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-10-07",
          "window": {
            "start": {
              "local": "1989-10-07T11:26:31+08:00",
              "utc": "1989-10-07T03:26:31Z",
              "ms": 623733991360.0139
            },
            "end": {
              "local": "1989-10-07T12:14:31+08:00",
              "utc": "1989-10-07T04:14:31Z",
              "ms": 623736871360.0139
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-10-08",
          "window": {
            "start": {
              "local": "1989-10-08T11:26:14+08:00",
              "utc": "1989-10-08T03:26:14Z",
              "ms": 623820374317.9907
            },
            "end": {
              "local": "1989-10-08T12:14:14+08:00",
              "utc": "1989-10-08T04:14:14Z",
              "ms": 623823254317.9907
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 20:33 on Sat 7 Oct to 21:01 on Sun 8 Oct.",
          "fact": "1989-10-07T12:32:48Z → 1989-10-08T13:00:33Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 7th, 11:26–12:14 on the 8th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 29897 s"
        },
        {
          "step": "ruling",
          "text": "Mahāṣṭamī, Fuzhou, 1989: Sunday 8 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Mahastami (paraviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Mahāṣṭamī (Durga Ashtami) 1989 falls on Sunday 8 October. Aṣṭamī runs from 20:33 on Sat 7 Oct to 21:01 on Sun 8 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/mahashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/mahanavami",
      "festival": "mahanavami",
      "name": "Mahānavamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30501,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1989-10-08T21:00:33+08:00",
          "utc": "1989-10-08T13:00:33Z",
          "ms": 623854832725.7767
        },
        "end": {
          "local": "1989-10-09T20:42:19+08:00",
          "utc": "1989-10-09T12:42:19Z",
          "ms": 623940138614.2299
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-08T21:00:33+08:00",
          "utc": "1989-10-08T13:00:33Z",
          "ms": 623854832725.7767
        },
        "end": {
          "local": "1989-10-09T20:42:19+08:00",
          "utc": "1989-10-09T12:42:19Z",
          "ms": 623940138614.2299
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-10-08",
          "window": {
            "start": {
              "local": "1989-10-08T11:26:14+08:00",
              "utc": "1989-10-08T03:26:14Z",
              "ms": 623820374317.9907
            },
            "end": {
              "local": "1989-10-08T12:14:14+08:00",
              "utc": "1989-10-08T04:14:14Z",
              "ms": 623823254317.9907
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-10-09",
          "window": {
            "start": {
              "local": "1989-10-09T11:25:58+08:00",
              "utc": "1989-10-09T03:25:58Z",
              "ms": 623906757686.3793
            },
            "end": {
              "local": "1989-10-09T12:13:58+08:00",
              "utc": "1989-10-09T04:13:58Z",
              "ms": 623909637686.3793
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 21:01 on Sun 8 Oct to 20:42 on Mon 9 Oct.",
          "fact": "1989-10-08T13:00:33Z → 1989-10-09T12:42:19Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 8th, 11:26–12:14 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 30501 s"
        },
        {
          "step": "ruling",
          "text": "Mahānavamī, Fuzhou, 1989: Monday 9 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahanavami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 9 Mahanavami (purvaviddha) (In Bengal it is observed as paraviddha covering one muhurta from sunrise)."
          }
        ],
        "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.",
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Mahānavamī 1989 falls on Monday 9 October. Navamī runs from 21:01 on Sun 8 Oct to 20:42 on Mon 9 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/mahanavami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vijaya-dashami",
      "festival": "vijaya-dashami",
      "name": "Vijayā Daśamī",
      "everyday": "Dussehra",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6356,
      "anga": {
        "type": "tithi",
        "index": 9,
        "key": "dashami",
        "name": "Daśamī",
        "start": {
          "local": "1989-10-09T20:42:19+08:00",
          "utc": "1989-10-09T12:42:19Z",
          "ms": 623940138614.2299
        },
        "end": {
          "local": "1989-10-10T19:36:06+08:00",
          "utc": "1989-10-10T11:36:06Z",
          "ms": 624022566059.1108
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "conjunction",
        "start": {
          "local": "1989-10-09T20:42:19+08:00",
          "utc": "1989-10-09T12:42:19Z",
          "ms": 623940138614.2299
        },
        "end": {
          "local": "1989-10-10T19:26:04+08:00",
          "utc": "1989-10-10T11:26:04Z",
          "ms": 624021963872.5714
        },
        "nakshatra": {
          "type": "nakshatra",
          "index": 21,
          "key": "shravana",
          "name": "Śravaṇa",
          "start": {
            "local": "1989-10-09T19:49:46+08:00",
            "utc": "1989-10-09T11:49:46Z",
            "ms": 623936986352.933
          },
          "end": {
            "local": "1989-10-10T19:26:04+08:00",
            "utc": "1989-10-10T11:26:04Z",
            "ms": 624021963872.5714
          }
        }
      },
      "kaala": "daytime",
      "days": [
        {
          "local_date": "1989-10-09",
          "window": {
            "start": {
              "local": "1989-10-09T05:58:47+08:00",
              "utc": "1989-10-08T21:58:47Z",
              "ms": 623887126527.5911
            },
            "end": {
              "local": "1989-10-09T17:41:09+08:00",
              "utc": "1989-10-09T09:41:09Z",
              "ms": 623929268845.1675
            }
          },
          "covered_min": 0,
          "window_min": 702,
          "qualifies": false
        },
        {
          "local_date": "1989-10-10",
          "window": {
            "start": {
              "local": "1989-10-10T05:59:15+08:00",
              "utc": "1989-10-09T21:59:15Z",
              "ms": 623973555192.6343
            },
            "end": {
              "local": "1989-10-10T17:40:08+08:00",
              "utc": "1989-10-10T09:40:08Z",
              "ms": 624015607775.7095
            }
          },
          "covered_min": 701,
          "window_min": 701,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Daśamī runs from 20:42 on Mon 9 Oct to 19:36 on Tue 10 Oct, and Śravaṇa from 19:50 on Mon 9 Oct to 19:26 on Tue 10 Oct. They are together from 20:42 on Mon 9 Oct to 19:26 on Tue 10 Oct.",
          "fact": "1989-10-09T12:42:19Z → 1989-10-10T11:26:04Z"
        },
        {
          "step": "kaala",
          "text": "The day time is sunrise to sunset: 05:59–17:41 on the 9th, 05:59–17:40 on the 10th.",
          "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 702 minutes on the 9th and 701 of 701 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one day qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 6356 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Daśamī, Fuzhou, 1989: Tuesday 10 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vijaya-dashami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara."
          }
        ],
        "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.",
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day",
        "conjunction": {
          "nakshatra": "Śravaṇa",
          "kaala": "daytime"
        }
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vijayā Daśamī (Dussehra) 1989 falls on Tuesday 10 October. Daśamī runs from 20:42 on Mon 9 Oct to 19:36 on Tue 10 Oct and is with Śravaṇa in the day time that day, for 701 minutes.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vijaya-dashami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-10-11",
      "festival": "ekadashi",
      "name": "Pāśāṅkuśā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37418,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-10-10T19:36:06+08:00",
          "utc": "1989-10-10T11:36:06Z",
          "ms": 624022566059.1108
        },
        "end": {
          "local": "1989-10-11T17:43:19+08:00",
          "utc": "1989-10-11T09:43:19Z",
          "ms": 624102198856.4291
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-10T19:36:06+08:00",
          "utc": "1989-10-10T11:36:06Z",
          "ms": 624022566059.1108
        },
        "end": {
          "local": "1989-10-11T17:43:19+08:00",
          "utc": "1989-10-11T09:43:19Z",
          "ms": 624102198856.4291
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-10-11",
          "window": {
            "start": {
              "local": "1989-10-11T05:59:44+08:00",
              "utc": "1989-10-10T21:59:44Z",
              "ms": 624059984189.871
            },
            "end": {
              "local": "1989-10-11T05:59:44+08:00",
              "utc": "1989-10-10T21:59:44Z",
              "ms": 624059984189.871
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-10-12",
          "window": {
            "start": {
              "local": "1989-10-12T06:00:14+08:00",
              "utc": "1989-10-11T22:00:14Z",
              "ms": 624146413531.5328
            },
            "end": {
              "local": "1989-10-12T06:00:14+08:00",
              "utc": "1989-10-11T22:00:14Z",
              "ms": 624146413531.5328
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 19:36 on Tue 10 Oct to 17:43 on Wed 11 Oct.",
          "fact": "1989-10-10T11:36:06Z → 1989-10-11T09:43:19Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:00 on the 11th and 06:00 on the 12th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 11th and is not on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 37418 s"
        },
        {
          "step": "ruling",
          "text": "Pāśāṅkuśā Ekādaśī, Fuzhou, 1989: Wednesday 11 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Pāśāṅkuśā Ekādaśī 1989 falls on Wednesday 11 October. Ekādaśī runs from 19:36 on Tue 10 Oct to 17:43 on Wed 11 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-10-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-10-12",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8978,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-10-12T15:08:29+08:00",
          "utc": "1989-10-12T07:08:29Z",
          "ms": 624179308891.217
        },
        "end": {
          "local": "1989-10-13T11:58:43+08:00",
          "utc": "1989-10-13T03:58:43Z",
          "ms": 624254322953.97
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-12T15:08:29+08:00",
          "utc": "1989-10-12T07:08:29Z",
          "ms": 624179308891.217
        },
        "end": {
          "local": "1989-10-13T11:58:43+08:00",
          "utc": "1989-10-13T03:58:43Z",
          "ms": 624254322953.97
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-10-12",
          "window": {
            "start": {
              "local": "1989-10-12T17:38:07+08:00",
              "utc": "1989-10-12T09:38:07Z",
              "ms": 624188287363.116
            },
            "end": {
              "local": "1989-10-12T19:17:08+08:00",
              "utc": "1989-10-12T11:17:08Z",
              "ms": 624194228145.5012
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "1989-10-13",
          "window": {
            "start": {
              "local": "1989-10-13T17:37:08+08:00",
              "utc": "1989-10-13T09:37:08Z",
              "ms": 624274628078.038
            },
            "end": {
              "local": "1989-10-13T19:16:21+08:00",
              "utc": "1989-10-13T11:16:21Z",
              "ms": 624280580774.6794
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:08 on Thu 12 Oct to 11:59 on Fri 13 Oct.",
          "fact": "1989-10-12T07:08:29Z → 1989-10-13T03:58:43Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:38–19:17 on the 12th, 17:37–19:16 on the 13th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 12th and 0 of 99 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8978 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Thursday 12 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Thursday 12 October. Trayodaśī runs from 15:08 on Thu 12 Oct to 11:59 on Fri 13 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-10-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/karaka-chaturthi",
      "festival": "karaka-chaturthi",
      "name": "Karaka Caturthī",
      "everyday": "Karwa Chauth",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7356,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-10-17T17:17:18+08:00",
          "utc": "1989-10-17T09:17:18Z",
          "ms": 624619038110.8365
        },
        "end": {
          "local": "1989-10-18T14:15:46+08:00",
          "utc": "1989-10-18T06:15:46Z",
          "ms": 624694546416.091
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-17T17:17:18+08:00",
          "utc": "1989-10-17T09:17:18Z",
          "ms": 624619038110.8365
        },
        "end": {
          "local": "1989-10-18T14:15:46+08:00",
          "utc": "1989-10-18T06:15:46Z",
          "ms": 624694546416.091
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-10-17",
          "window": {
            "start": {
              "local": "1989-10-17T19:19:54+08:00",
              "utc": "1989-10-17T11:19:54Z",
              "ms": 624626394167.5731
            },
            "end": {
              "local": "1989-10-17T19:19:54+08:00",
              "utc": "1989-10-17T11:19:54Z",
              "ms": 624626394167.5731
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-10-18",
          "window": {
            "start": {
              "local": "1989-10-18T20:17:47+08:00",
              "utc": "1989-10-18T12:17:47Z",
              "ms": 624716267261.3536
            },
            "end": {
              "local": "1989-10-18T20:17:47+08:00",
              "utc": "1989-10-18T12:17:47Z",
              "ms": 624716267261.3536
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:17 on Tue 17 Oct to 14:16 on Wed 18 Oct.",
          "fact": "1989-10-17T09:17:18Z → 1989-10-18T06:15:46Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:20 on the 17th and 20:18 on the 18th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 17th and is not on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 7356 s"
        },
        {
          "step": "ruling",
          "text": "Karaka Caturthī, Fuzhou, 1989: Tuesday 17 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "karaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)"
          }
        ],
        "kaala": "moonrise",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Karaka Caturthī (Karwa Chauth) 1989 falls on Tuesday 17 October. Caturthī runs from 17:17 on Tue 17 Oct to 14:16 on Wed 18 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/karaka-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-10-17",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7356,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-10-17T17:17:18+08:00",
          "utc": "1989-10-17T09:17:18Z",
          "ms": 624619038110.8365
        },
        "end": {
          "local": "1989-10-18T14:15:46+08:00",
          "utc": "1989-10-18T06:15:46Z",
          "ms": 624694546416.091
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-17T17:17:18+08:00",
          "utc": "1989-10-17T09:17:18Z",
          "ms": 624619038110.8365
        },
        "end": {
          "local": "1989-10-18T14:15:46+08:00",
          "utc": "1989-10-18T06:15:46Z",
          "ms": 624694546416.091
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-10-17",
          "window": {
            "start": {
              "local": "1989-10-17T19:19:54+08:00",
              "utc": "1989-10-17T11:19:54Z",
              "ms": 624626394167.5731
            },
            "end": {
              "local": "1989-10-17T19:19:54+08:00",
              "utc": "1989-10-17T11:19:54Z",
              "ms": 624626394167.5731
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-10-18",
          "window": {
            "start": {
              "local": "1989-10-18T20:17:47+08:00",
              "utc": "1989-10-18T12:17:47Z",
              "ms": 624716267261.3536
            },
            "end": {
              "local": "1989-10-18T20:17:47+08:00",
              "utc": "1989-10-18T12:17:47Z",
              "ms": 624716267261.3536
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:17 on Tue 17 Oct to 14:16 on Wed 18 Oct.",
          "fact": "1989-10-17T09:17:18Z → 1989-10-18T06:15:46Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:20 on the 17th and 20:18 on the 18th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 17th and is not on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7356 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Tuesday 17 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Tuesday 17 October. Caturthī runs from 17:17 on Tue 17 Oct to 14:16 on Wed 18 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-10-17",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ahoyi-ashtami",
      "festival": "ahoyi-ashtami",
      "name": "Ahoyī Aṣṭamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35959,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-10-21T09:24:38+08:00",
          "utc": "1989-10-21T01:24:38Z",
          "ms": 624936278409.3729
        },
        "end": {
          "local": "1989-10-22T09:25:08+08:00",
          "utc": "1989-10-22T01:25:08Z",
          "ms": 625022708088.7383
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-21T09:24:38+08:00",
          "utc": "1989-10-21T01:24:38Z",
          "ms": 624936278409.3729
        },
        "end": {
          "local": "1989-10-22T09:25:08+08:00",
          "utc": "1989-10-22T01:25:08Z",
          "ms": 625022708088.7383
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-10-20",
          "window": {
            "start": {
              "local": "1989-10-20T22:23:35+08:00",
              "utc": "1989-10-20T14:23:35Z",
              "ms": 624896614710.6259
            },
            "end": {
              "local": "1989-10-20T22:23:35+08:00",
              "utc": "1989-10-20T14:23:35Z",
              "ms": 624896614710.6259
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-10-21",
          "window": {
            "start": {
              "local": "1989-10-21T23:25:49+08:00",
              "utc": "1989-10-21T15:25:49Z",
              "ms": 624986749001.5353
            },
            "end": {
              "local": "1989-10-21T23:25:49+08:00",
              "utc": "1989-10-21T15:25:49Z",
              "ms": 624986749001.5353
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 09:25 on Sat 21 Oct to 09:25 on Sun 22 Oct.",
          "fact": "1989-10-21T01:24:38Z → 1989-10-22T01:25:08Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:24 on the 20th and 23:26 on the 21st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is not on the 20th and is on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 35959 s"
        },
        {
          "step": "ruling",
          "text": "Ahoyī Aṣṭamī, Fuzhou, 1989: Saturday 21 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ahoyi-ashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day."
          }
        ],
        "kaala": "moonrise",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Ahoyī Aṣṭamī 1989 falls on Saturday 21 October. Aṣṭamī runs from 09:25 on Sat 21 Oct to 09:25 on Sun 22 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ahoyi-ashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-10-25",
      "festival": "ekadashi",
      "name": "Ramā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19907,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-10-24T11:38:24+08:00",
          "utc": "1989-10-24T03:38:24Z",
          "ms": 625203504330.4135
        },
        "end": {
          "local": "1989-10-25T13:35:21+08:00",
          "utc": "1989-10-25T05:35:21Z",
          "ms": 625296921337.4489
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-24T11:38:24+08:00",
          "utc": "1989-10-24T03:38:24Z",
          "ms": 625203504330.4135
        },
        "end": {
          "local": "1989-10-25T13:35:21+08:00",
          "utc": "1989-10-25T05:35:21Z",
          "ms": 625296921337.4489
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-10-24",
          "window": {
            "start": {
              "local": "1989-10-24T06:06:37+08:00",
              "utc": "1989-10-23T22:06:37Z",
              "ms": 625183597427.7955
            },
            "end": {
              "local": "1989-10-24T06:06:37+08:00",
              "utc": "1989-10-23T22:06:37Z",
              "ms": 625183597427.7955
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-10-25",
          "window": {
            "start": {
              "local": "1989-10-25T06:07:12+08:00",
              "utc": "1989-10-24T22:07:12Z",
              "ms": 625270032359.6349
            },
            "end": {
              "local": "1989-10-25T06:07:12+08:00",
              "utc": "1989-10-24T22:07:12Z",
              "ms": 625270032359.6349
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 11:38 on Tue 24 Oct to 13:35 on Wed 25 Oct.",
          "fact": "1989-10-24T03:38:24Z → 1989-10-25T05:35:21Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:07 on the 24th and 06:07 on the 25th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 24th and is on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 19907 s"
        },
        {
          "step": "ruling",
          "text": "Ramā Ekādaśī, Fuzhou, 1989: Wednesday 25 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Ramā Ekādaśī 1989 falls on Wednesday 25 October. Ekādaśī runs from 11:38 on Tue 24 Oct to 13:35 on Wed 25 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-10-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/govatsa-dvadashi",
      "festival": "govatsa-dvadashi",
      "name": "Govatsa Dvādaśī",
      "everyday": "Vasu Baras",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5547,
      "anga": {
        "type": "tithi",
        "index": 26,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1989-10-25T13:35:21+08:00",
          "utc": "1989-10-25T05:35:21Z",
          "ms": 625296921337.4489
        },
        "end": {
          "local": "1989-10-26T15:53:00+08:00",
          "utc": "1989-10-26T07:53:00Z",
          "ms": 625391580347.8917
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-25T13:35:21+08:00",
          "utc": "1989-10-25T05:35:21Z",
          "ms": 625296921337.4489
        },
        "end": {
          "local": "1989-10-26T15:53:00+08:00",
          "utc": "1989-10-26T07:53:00Z",
          "ms": 625391580347.8917
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-10-25",
          "window": {
            "start": {
              "local": "1989-10-25T17:26:16+08:00",
              "utc": "1989-10-25T09:26:16Z",
              "ms": 625310776317.0984
            },
            "end": {
              "local": "1989-10-25T19:07:49+08:00",
              "utc": "1989-10-25T11:07:49Z",
              "ms": 625316868509.4851
            }
          },
          "covered_min": 102,
          "window_min": 102,
          "qualifies": true
        },
        {
          "local_date": "1989-10-26",
          "window": {
            "start": {
              "local": "1989-10-26T17:25:28+08:00",
              "utc": "1989-10-26T09:25:28Z",
              "ms": 625397127846.6744
            },
            "end": {
              "local": "1989-10-26T19:07:11+08:00",
              "utc": "1989-10-26T11:07:11Z",
              "ms": 625403231284.0514
            }
          },
          "covered_min": 0,
          "window_min": 102,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 13:35 on Wed 25 Oct to 15:53 on Thu 26 Oct.",
          "fact": "1989-10-25T05:35:21Z → 1989-10-26T07:53:00Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:26–19:08 on the 25th, 17:25–19:07 on the 26th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 25th and 0 of 102 on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 5547 s"
        },
        {
          "step": "ruling",
          "text": "Govatsa Dvādaśī, Fuzhou, 1989: Wednesday 25 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "govatsa-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day."
          }
        ],
        "kaala": "pradosha",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Govatsa Dvādaśī (Vasu Baras) 1989 falls on Wednesday 25 October. Dvādaśī runs from 13:35 on Wed 25 Oct to 15:53 on Thu 26 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/govatsa-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/yama-dipadana",
      "festival": "yama-dipadana",
      "name": "Yama Dīpadāna",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-26",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 2662,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-10-26T15:53:00+08:00",
          "utc": "1989-10-26T07:53:00Z",
          "ms": 625391580347.8917
        },
        "end": {
          "local": "1989-10-27T18:22:13+08:00",
          "utc": "1989-10-27T10:22:13Z",
          "ms": 625486932965.6047
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-26T15:53:00+08:00",
          "utc": "1989-10-26T07:53:00Z",
          "ms": 625391580347.8917
        },
        "end": {
          "local": "1989-10-27T18:22:13+08:00",
          "utc": "1989-10-27T10:22:13Z",
          "ms": 625486932965.6047
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-10-26",
          "window": {
            "start": {
              "local": "1989-10-26T17:25:28+08:00",
              "utc": "1989-10-26T09:25:28Z",
              "ms": 625397127846.6744
            },
            "end": {
              "local": "1989-10-26T19:07:11+08:00",
              "utc": "1989-10-26T11:07:11Z",
              "ms": 625403231284.0514
            }
          },
          "covered_min": 102,
          "window_min": 102,
          "qualifies": true
        },
        {
          "local_date": "1989-10-27",
          "window": {
            "start": {
              "local": "1989-10-27T17:24:40+08:00",
              "utc": "1989-10-27T09:24:40Z",
              "ms": 625483480397.285
            },
            "end": {
              "local": "1989-10-27T19:06:35+08:00",
              "utc": "1989-10-27T11:06:35Z",
              "ms": 625489595005.3207
            }
          },
          "covered_min": 58,
          "window_min": 102,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:53 on Thu 26 Oct to 18:22 on Fri 27 Oct.",
          "fact": "1989-10-26T07:53:00Z → 1989-10-27T10:22:13Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:25–19:07 on the 26th, 17:25–19:07 on the 27th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 26th and 58 of 102 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 2662 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dīpadāna, Fuzhou, 1989: Thursday 26 October.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "yama-dipadana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 13 Yama dipadana (pradosa)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-26",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-26",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Yama Dīpadāna 1989 falls on Thursday 26 October. Trayodaśī runs from 15:53 on Thu 26 Oct to 18:22 on Fri 27 Oct and covers all of pradoṣa that evening. It also reaches the next evening for 58 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/yama-dipadana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-10-26",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-26",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 2662,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-10-26T15:53:00+08:00",
          "utc": "1989-10-26T07:53:00Z",
          "ms": 625391580347.8917
        },
        "end": {
          "local": "1989-10-27T18:22:13+08:00",
          "utc": "1989-10-27T10:22:13Z",
          "ms": 625486932965.6047
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-26T15:53:00+08:00",
          "utc": "1989-10-26T07:53:00Z",
          "ms": 625391580347.8917
        },
        "end": {
          "local": "1989-10-27T18:22:13+08:00",
          "utc": "1989-10-27T10:22:13Z",
          "ms": 625486932965.6047
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-10-26",
          "window": {
            "start": {
              "local": "1989-10-26T17:25:28+08:00",
              "utc": "1989-10-26T09:25:28Z",
              "ms": 625397127846.6744
            },
            "end": {
              "local": "1989-10-26T19:07:11+08:00",
              "utc": "1989-10-26T11:07:11Z",
              "ms": 625403231284.0514
            }
          },
          "covered_min": 102,
          "window_min": 102,
          "qualifies": true
        },
        {
          "local_date": "1989-10-27",
          "window": {
            "start": {
              "local": "1989-10-27T17:24:40+08:00",
              "utc": "1989-10-27T09:24:40Z",
              "ms": 625483480397.285
            },
            "end": {
              "local": "1989-10-27T19:06:35+08:00",
              "utc": "1989-10-27T11:06:35Z",
              "ms": 625489595005.3207
            }
          },
          "covered_min": 58,
          "window_min": 102,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:53 on Thu 26 Oct to 18:22 on Fri 27 Oct.",
          "fact": "1989-10-26T07:53:00Z → 1989-10-27T10:22:13Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:25–19:07 on the 26th, 17:25–19:07 on the 27th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 26th and 58 of 102 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 2662 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Thursday 26 October.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-26",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-26",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Thursday 26 October. Trayodaśī runs from 15:53 on Thu 26 Oct to 18:22 on Fri 27 Oct and covers all of pradoṣa that evening. It also reaches the next evening for 58 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-10-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-10-27",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8838,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-10-27T18:22:13+08:00",
          "utc": "1989-10-27T10:22:13Z",
          "ms": 625486932965.6047
        },
        "end": {
          "local": "1989-10-28T20:55:28+08:00",
          "utc": "1989-10-28T12:55:28Z",
          "ms": 625582527785.5552
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-27T18:22:13+08:00",
          "utc": "1989-10-27T10:22:13Z",
          "ms": 625486932965.6047
        },
        "end": {
          "local": "1989-10-28T20:55:28+08:00",
          "utc": "1989-10-28T12:55:28Z",
          "ms": 625582527785.5552
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-10-27",
          "window": {
            "start": {
              "local": "1989-10-27T23:22:50+08:00",
              "utc": "1989-10-27T15:22:50Z",
              "ms": 625504970177.4186
            },
            "end": {
              "local": "1989-10-28T00:10:50+08:00",
              "utc": "1989-10-27T16:10:50Z",
              "ms": 625507850177.4186
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-10-28",
          "window": {
            "start": {
              "local": "1989-10-28T23:22:45+08:00",
              "utc": "1989-10-28T15:22:45Z",
              "ms": 625591365370.0295
            },
            "end": {
              "local": "1989-10-29T00:10:45+08:00",
              "utc": "1989-10-28T16:10:45Z",
              "ms": 625594245370.0295
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 18:22 on Fri 27 Oct to 20:55 on Sat 28 Oct.",
          "fact": "1989-10-27T10:22:13Z → 1989-10-28T12:55:28Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 27th, 23:23–00:11 on the 28th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8838 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Friday 27 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Friday 27 October. Caturdaśī runs from 18:22 on Fri 27 Oct to 20:55 on Sat 28 Oct and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-10-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/naraka-chaturdashi",
      "festival": "naraka-chaturdashi",
      "name": "Naraka Caturdaśī",
      "everyday": "Choti Diwali",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27123,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-10-27T18:22:13+08:00",
          "utc": "1989-10-27T10:22:13Z",
          "ms": 625486932965.6047
        },
        "end": {
          "local": "1989-10-28T20:55:28+08:00",
          "utc": "1989-10-28T12:55:28Z",
          "ms": 625582527785.5552
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-27T18:22:13+08:00",
          "utc": "1989-10-27T10:22:13Z",
          "ms": 625486932965.6047
        },
        "end": {
          "local": "1989-10-28T20:55:28+08:00",
          "utc": "1989-10-28T12:55:28Z",
          "ms": 625582527785.5552
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1989-10-28",
          "window": {
            "start": {
              "local": "1989-10-28T04:27:05+08:00",
              "utc": "1989-10-27T20:27:05Z",
              "ms": 625523225349.5165
            },
            "end": {
              "local": "1989-10-28T06:09:00+08:00",
              "utc": "1989-10-27T22:09:00Z",
              "ms": 625529339957.5521
            }
          },
          "covered_min": 102,
          "window_min": 102,
          "qualifies": true
        },
        {
          "local_date": "1989-10-29",
          "window": {
            "start": {
              "local": "1989-10-29T04:27:31+08:00",
              "utc": "1989-10-28T20:27:31Z",
              "ms": 625609651046.7421
            },
            "end": {
              "local": "1989-10-29T06:09:37+08:00",
              "utc": "1989-10-28T22:09:37Z",
              "ms": 625615776747.3647
            }
          },
          "covered_min": 0,
          "window_min": 102,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 18:22 on Fri 27 Oct to 20:55 on Sat 28 Oct.",
          "fact": "1989-10-27T10:22:13Z → 1989-10-28T12:55:28Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:27–06:09 on the 28th, 04:28–06:10 on the 29th.",
          "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during aruṇodaya. It covers 102 of 102 minutes on the 28th and 0 of 102 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one dawn qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 27123 s"
        },
        {
          "step": "ruling",
          "text": "Naraka Caturdaśī, Fuzhou, 1989: Saturday 28 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naraka-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)"
          }
        ],
        "kaala": "arunodaya",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Naraka Caturdaśī (Choti Diwali) 1989 falls on Saturday 28 October. Caturdaśī runs from 18:22 on Fri 27 Oct to 20:55 on Sat 28 Oct and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/naraka-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/kali-puja",
      "festival": "kali-puja",
      "name": "Kālī Pūjā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-28",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "tie-break-unstated"
      ],
      "boundary_margin_s": 262,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1989-10-28T20:55:28+08:00",
          "utc": "1989-10-28T12:55:28Z",
          "ms": 625582527785.5552
        },
        "end": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-28T20:55:28+08:00",
          "utc": "1989-10-28T12:55:28Z",
          "ms": 625582527785.5552
        },
        "end": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-10-28",
          "window": {
            "start": {
              "local": "1989-10-28T23:22:45+08:00",
              "utc": "1989-10-28T15:22:45Z",
              "ms": 625591365370.0295
            },
            "end": {
              "local": "1989-10-29T00:10:45+08:00",
              "utc": "1989-10-28T16:10:45Z",
              "ms": 625594245370.0295
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-10-29",
          "window": {
            "start": {
              "local": "1989-10-29T23:22:41+08:00",
              "utc": "1989-10-29T15:22:41Z",
              "ms": 625677761323.5598
            },
            "end": {
              "local": "1989-10-30T00:10:41+08:00",
              "utc": "1989-10-29T16:10:41Z",
              "ms": 625680641323.5598
            }
          },
          "covered_min": 4,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 20:55 on Sat 28 Oct to 23:27 on Sun 29 Oct.",
          "fact": "1989-10-28T12:55:28Z → 1989-10-29T15:27:04Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 28th, 23:23–00:11 on the 29th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 28th and 4 of 48 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 262 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Kālī Pūjā, Fuzhou, 1989: Saturday 28 October.",
          "fact": "confidence: boundary (margin, tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "kali-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)"
          }
        ],
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-28",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-28",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Kālī Pūjā 1989 falls on Saturday 28 October. Amāvasyā runs from 20:55 on Sat 28 Oct to 23:27 on Sun 29 Oct and covers all of niśītha that night. It also reaches the next night for 4 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 22 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/kali-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/diwali-lakshmi-puja",
      "festival": "diwali-lakshmi-puja",
      "name": "Lakṣmī Pūjā",
      "everyday": "Diwali",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6568,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1989-10-28T20:55:28+08:00",
          "utc": "1989-10-28T12:55:28Z",
          "ms": 625582527785.5552
        },
        "end": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-28T20:55:28+08:00",
          "utc": "1989-10-28T12:55:28Z",
          "ms": 625582527785.5552
        },
        "end": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-10-28",
          "window": {
            "start": {
              "local": "1989-10-28T17:23:54+08:00",
              "utc": "1989-10-28T09:23:54Z",
              "ms": 625569833992.6943
            },
            "end": {
              "local": "1989-10-28T19:06:00+08:00",
              "utc": "1989-10-28T11:06:00Z",
              "ms": 625575959693.317
            }
          },
          "covered_min": 0,
          "window_min": 102,
          "qualifies": false
        },
        {
          "local_date": "1989-10-29",
          "window": {
            "start": {
              "local": "1989-10-29T17:23:09+08:00",
              "utc": "1989-10-29T09:23:09Z",
              "ms": 625656188656.1433
            },
            "end": {
              "local": "1989-10-29T19:05:25+08:00",
              "utc": "1989-10-29T11:05:25Z",
              "ms": 625662325367.4543
            }
          },
          "covered_min": 102,
          "window_min": 102,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 20:55 on Sat 28 Oct to 23:27 on Sun 29 Oct.",
          "fact": "1989-10-28T12:55:28Z → 1989-10-29T15:27:04Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:06 on the 28th, 17:23–19:05 on the 29th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during pradoṣa. It covers 0 of 102 minutes on the 28th and 102 of 102 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 6568 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pūjā, Fuzhou, 1989: Sunday 29 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "diwali-lakshmi-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)"
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Lakṣmī Pūjā (Diwali) 1989 falls on Sunday 29 October. Amāvasyā runs from 20:55 on Sat 28 Oct to 23:27 on Sun 29 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/diwali-lakshmi-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/govardhana-puja",
      "festival": "govardhana-puja",
      "name": "Govardhana Pūjā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34172,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        },
        "end": {
          "local": "1989-10-31T01:52:44+08:00",
          "utc": "1989-10-30T17:52:44Z",
          "ms": 625773164027.5182
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        },
        "end": {
          "local": "1989-10-31T01:52:44+08:00",
          "utc": "1989-10-30T17:52:44Z",
          "ms": 625773164027.5182
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-10-30",
          "window": {
            "start": {
              "local": "1989-10-30T11:22:19+08:00",
              "utc": "1989-10-30T03:22:19Z",
              "ms": 625720939200.6826
            },
            "end": {
              "local": "1989-10-30T12:10:19+08:00",
              "utc": "1989-10-30T04:10:19Z",
              "ms": 625723819200.6826
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-10-31",
          "window": {
            "start": {
              "local": "1989-10-31T11:22:16+08:00",
              "utc": "1989-10-31T03:22:16Z",
              "ms": 625807336479.7612
            },
            "end": {
              "local": "1989-10-31T12:10:16+08:00",
              "utc": "1989-10-31T04:10:16Z",
              "ms": 625810216479.7612
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 23:27 on Sun 29 Oct to 01:53 on Tue 31 Oct.",
          "fact": "1989-10-29T15:27:04Z → 1989-10-30T17:52:44Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 30th, 11:22–12:10 on the 31st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 34172 s"
        },
        {
          "step": "ruling",
          "text": "Govardhana Pūjā, Fuzhou, 1989: Monday 30 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "govardhana-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Govardhana Pūjā 1989 falls on Monday 30 October. Pratipadā runs from 23:27 on Sun 29 Oct to 01:53 on Tue 31 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/govardhana-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/bali-puja",
      "festival": "bali-puja",
      "name": "Bali Pūjā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15698,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        },
        "end": {
          "local": "1989-10-31T01:52:44+08:00",
          "utc": "1989-10-30T17:52:44Z",
          "ms": 625773164027.5182
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        },
        "end": {
          "local": "1989-10-31T01:52:44+08:00",
          "utc": "1989-10-30T17:52:44Z",
          "ms": 625773164027.5182
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-10-29",
          "window": {
            "start": {
              "local": "1989-10-29T17:23:09+08:00",
              "utc": "1989-10-29T09:23:09Z",
              "ms": 625656188656.1433
            },
            "end": {
              "local": "1989-10-29T19:05:25+08:00",
              "utc": "1989-10-29T11:05:25Z",
              "ms": 625662325367.4543
            }
          },
          "covered_min": 0,
          "window_min": 102,
          "qualifies": false
        },
        {
          "local_date": "1989-10-30",
          "window": {
            "start": {
              "local": "1989-10-30T17:22:24+08:00",
              "utc": "1989-10-30T09:22:24Z",
              "ms": 625742544410.3889
            },
            "end": {
              "local": "1989-10-30T19:04:52+08:00",
              "utc": "1989-10-30T11:04:52Z",
              "ms": 625748692046.5742
            }
          },
          "covered_min": 102,
          "window_min": 102,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 23:27 on Sun 29 Oct to 01:53 on Tue 31 Oct.",
          "fact": "1989-10-29T15:27:04Z → 1989-10-30T17:52:44Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:23–19:05 on the 29th, 17:22–19:05 on the 30th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during pradoṣa. It covers 0 of 102 minutes on the 29th and 102 of 102 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 15698 s"
        },
        {
          "step": "ruling",
          "text": "Bali Pūjā, Fuzhou, 1989: Monday 30 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "bali-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Bali Pūjā 1989 falls on Monday 30 October. Pratipadā runs from 23:27 on Sun 29 Oct to 01:53 on Tue 31 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/bali-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/dyuta-pratipad",
      "festival": "dyuta-pratipad",
      "name": "Dyūta Pratipad",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15488,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        },
        "end": {
          "local": "1989-10-31T01:52:44+08:00",
          "utc": "1989-10-30T17:52:44Z",
          "ms": 625773164027.5182
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-29T23:27:04+08:00",
          "utc": "1989-10-29T15:27:04Z",
          "ms": 625678023535.9683
        },
        "end": {
          "local": "1989-10-31T01:52:44+08:00",
          "utc": "1989-10-30T17:52:44Z",
          "ms": 625773164027.5182
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1989-10-30",
          "window": {
            "start": {
              "local": "1989-10-30T06:10:14+08:00",
              "utc": "1989-10-29T22:10:14Z",
              "ms": 625702213990.9762
            },
            "end": {
              "local": "1989-10-30T09:54:17+08:00",
              "utc": "1989-10-30T01:54:17Z",
              "ms": 625715657464.1138
            }
          },
          "covered_min": 224,
          "window_min": 224,
          "qualifies": true
        },
        {
          "local_date": "1989-10-31",
          "window": {
            "start": {
              "local": "1989-10-31T06:10:52+08:00",
              "utc": "1989-10-30T22:10:52Z",
              "ms": 625788651681.7787
            },
            "end": {
              "local": "1989-10-31T09:54:28+08:00",
              "utc": "1989-10-31T01:54:28Z",
              "ms": 625802068213.7671
            }
          },
          "covered_min": 0,
          "window_min": 224,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 23:27 on Sun 29 Oct to 01:53 on Tue 31 Oct.",
          "fact": "1989-10-29T15:27:04Z → 1989-10-30T17:52:44Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:10–09:54 on the 30th, 06:11–09:54 on the 31st.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during pūrvāhṇa. It covers 224 of 224 minutes on the 30th and 0 of 224 on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one forenoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 15488 s"
        },
        {
          "step": "ruling",
          "text": "Dyūta Pratipad, Fuzhou, 1989: Monday 30 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "dyuta-pratipad",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)."
          }
        ],
        "kaala": "purvahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Dyūta Pratipad 1989 falls on Monday 30 October. Pratipadā runs from 23:27 on Sun 29 Oct to 01:53 on Tue 31 Oct and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/dyuta-pratipad",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/yama-dvitiya",
      "festival": "yama-dvitiya",
      "name": "Yama Dvitīyā",
      "everyday": "Bhai Dooj",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-10-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26004,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1989-10-31T01:52:44+08:00",
          "utc": "1989-10-30T17:52:44Z",
          "ms": 625773164027.5182
        },
        "end": {
          "local": "1989-11-01T04:08:50+08:00",
          "utc": "1989-10-31T20:08:50Z",
          "ms": 625867730250.0479
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-10-31T01:52:44+08:00",
          "utc": "1989-10-30T17:52:44Z",
          "ms": 625773164027.5182
        },
        "end": {
          "local": "1989-11-01T04:08:50+08:00",
          "utc": "1989-10-31T20:08:50Z",
          "ms": 625867730250.0479
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-10-31",
          "window": {
            "start": {
              "local": "1989-10-31T11:22:16+08:00",
              "utc": "1989-10-31T03:22:16Z",
              "ms": 625807336479.7612
            },
            "end": {
              "local": "1989-10-31T12:10:16+08:00",
              "utc": "1989-10-31T04:10:16Z",
              "ms": 625810216479.7612
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-11-01",
          "window": {
            "start": {
              "local": "1989-11-01T11:22:15+08:00",
              "utc": "1989-11-01T03:22:15Z",
              "ms": 625893734546.1361
            },
            "end": {
              "local": "1989-11-01T12:10:15+08:00",
              "utc": "1989-11-01T04:10:15Z",
              "ms": 625896614546.1361
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 01:53 on Tue 31 Oct to 04:09 on Wed 1 Nov.",
          "fact": "1989-10-30T17:52:44Z → 1989-10-31T20:08:50Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 31st, 11:22–12:10 on the 1st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 26004 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dvitīyā, Fuzhou, 1989: Tuesday 31 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "yama-dvitiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-10-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-10-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Yama Dvitīyā (Bhai Dooj) 1989 falls on Tuesday 31 October. Dvitīyā runs from 01:53 on Tue 31 Oct to 04:09 on Wed 1 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/yama-dvitiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/naga-chaturthi",
      "festival": "naga-chaturthi",
      "name": "Nāga Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12380,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-11-02T06:11:29+08:00",
          "utc": "1989-11-01T22:11:29Z",
          "ms": 625961488608.1117
        },
        "end": {
          "local": "1989-11-03T07:55:53+08:00",
          "utc": "1989-11-02T23:55:53Z",
          "ms": 626054153261.6697
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-02T06:11:29+08:00",
          "utc": "1989-11-01T22:11:29Z",
          "ms": 625961488608.1117
        },
        "end": {
          "local": "1989-11-03T07:55:53+08:00",
          "utc": "1989-11-02T23:55:53Z",
          "ms": 626054153261.6697
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-11-02",
          "window": {
            "start": {
              "local": "1989-11-02T11:22:13+08:00",
              "utc": "1989-11-02T03:22:13Z",
              "ms": 625980133406.3414
            },
            "end": {
              "local": "1989-11-02T12:10:13+08:00",
              "utc": "1989-11-02T04:10:13Z",
              "ms": 625983013406.3414
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-11-03",
          "window": {
            "start": {
              "local": "1989-11-03T11:22:13+08:00",
              "utc": "1989-11-03T03:22:13Z",
              "ms": 626066533065.989
            },
            "end": {
              "local": "1989-11-03T12:10:13+08:00",
              "utc": "1989-11-03T04:10:13Z",
              "ms": 626069413065.989
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:11 on Thu 2 Nov to 07:56 on Fri 3 Nov.",
          "fact": "1989-11-01T22:11:29Z → 1989-11-02T23:55:53Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 2nd, 11:22–12:10 on the 3rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 0 of 48 on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 12380 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Caturthī, Fuzhou, 1989: Thursday 2 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naga-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Nāga Caturthī 1989 falls on Thursday 2 November. Caturthī runs from 06:11 on Thu 2 Nov to 07:56 on Fri 3 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/naga-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-11-02",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12380,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-11-02T06:11:29+08:00",
          "utc": "1989-11-01T22:11:29Z",
          "ms": 625961488608.1117
        },
        "end": {
          "local": "1989-11-03T07:55:53+08:00",
          "utc": "1989-11-02T23:55:53Z",
          "ms": 626054153261.6697
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-02T06:11:29+08:00",
          "utc": "1989-11-01T22:11:29Z",
          "ms": 625961488608.1117
        },
        "end": {
          "local": "1989-11-03T07:55:53+08:00",
          "utc": "1989-11-02T23:55:53Z",
          "ms": 626054153261.6697
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-11-02",
          "window": {
            "start": {
              "local": "1989-11-02T11:22:13+08:00",
              "utc": "1989-11-02T03:22:13Z",
              "ms": 625980133406.3414
            },
            "end": {
              "local": "1989-11-02T12:10:13+08:00",
              "utc": "1989-11-02T04:10:13Z",
              "ms": 625983013406.3414
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-11-03",
          "window": {
            "start": {
              "local": "1989-11-03T11:22:13+08:00",
              "utc": "1989-11-03T03:22:13Z",
              "ms": 626066533065.989
            },
            "end": {
              "local": "1989-11-03T12:10:13+08:00",
              "utc": "1989-11-03T04:10:13Z",
              "ms": 626069413065.989
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:11 on Thu 2 Nov to 07:56 on Fri 3 Nov.",
          "fact": "1989-11-01T22:11:29Z → 1989-11-02T23:55:53Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 2nd, 11:22–12:10 on the 3rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 0 of 48 on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 12380 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Thursday 2 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Thursday 2 November. Caturthī runs from 06:11 on Thu 2 Nov to 07:56 on Fri 3 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-11-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/surya-shashthi",
      "festival": "surya-shashthi",
      "name": "Sūrya Ṣaṣṭhī",
      "everyday": "Chhath",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4562,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1989-11-04T09:16:16+08:00",
          "utc": "1989-11-04T01:16:16Z",
          "ms": 626145376398.0579
        },
        "end": {
          "local": "1989-11-05T10:06:13+08:00",
          "utc": "1989-11-05T02:06:13Z",
          "ms": 626234772619.5364
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-04T09:16:16+08:00",
          "utc": "1989-11-04T01:16:16Z",
          "ms": 626145376398.0579
        },
        "end": {
          "local": "1989-11-05T10:06:13+08:00",
          "utc": "1989-11-05T02:06:13Z",
          "ms": 626234772619.5364
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-11-04",
          "window": {
            "start": {
              "local": "1989-11-04T11:22:14+08:00",
              "utc": "1989-11-04T03:22:14Z",
              "ms": 626152933530.2817
            },
            "end": {
              "local": "1989-11-04T12:10:14+08:00",
              "utc": "1989-11-04T04:10:14Z",
              "ms": 626155813530.2817
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-11-05",
          "window": {
            "start": {
              "local": "1989-11-05T11:22:15+08:00",
              "utc": "1989-11-05T03:22:15Z",
              "ms": 626239334803.9536
            },
            "end": {
              "local": "1989-11-05T12:10:15+08:00",
              "utc": "1989-11-05T04:10:15Z",
              "ms": 626242214803.9536
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 09:16 on Sat 4 Nov to 10:06 on Sun 5 Nov.",
          "fact": "1989-11-04T01:16:16Z → 1989-11-05T02:06:13Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 4th, 11:22–12:10 on the 5th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 4562 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī, Fuzhou, 1989: Saturday 4 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "surya-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Sūrya Ṣaṣṭhī (Chhath) 1989 falls on Saturday 4 November. Ṣaṣṭhī runs from 09:16 on Sat 4 Nov to 10:06 on Sun 5 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/surya-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/gopashtami",
      "festival": "gopashtami",
      "name": "Gopāṣṭamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3764,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1989-11-06T10:19:33+08:00",
          "utc": "1989-11-06T02:19:33Z",
          "ms": 626321972581.3325
        },
        "end": {
          "local": "1989-11-07T09:51:30+08:00",
          "utc": "1989-11-07T01:51:30Z",
          "ms": 626406689969.5052
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-06T10:19:33+08:00",
          "utc": "1989-11-06T02:19:33Z",
          "ms": 626321972581.3325
        },
        "end": {
          "local": "1989-11-07T09:51:30+08:00",
          "utc": "1989-11-07T01:51:30Z",
          "ms": 626406689969.5052
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-11-06",
          "window": {
            "start": {
              "local": "1989-11-06T11:22:17+08:00",
              "utc": "1989-11-06T03:22:17Z",
              "ms": 626325736891.3689
            },
            "end": {
              "local": "1989-11-06T12:10:17+08:00",
              "utc": "1989-11-06T04:10:17Z",
              "ms": 626328616891.3689
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-11-07",
          "window": {
            "start": {
              "local": "1989-11-07T11:22:20+08:00",
              "utc": "1989-11-07T03:22:20Z",
              "ms": 626412139796.6637
            },
            "end": {
              "local": "1989-11-07T12:10:20+08:00",
              "utc": "1989-11-07T04:10:20Z",
              "ms": 626415019796.6637
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 10:20 on Mon 6 Nov to 09:51 on Tue 7 Nov.",
          "fact": "1989-11-06T02:19:33Z → 1989-11-07T01:51:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 6th, 11:22–12:10 on the 7th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 3764 s"
        },
        {
          "step": "ruling",
          "text": "Gopāṣṭamī, Fuzhou, 1989: Monday 6 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "gopashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Gopastami, Gosthastami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Gopāṣṭamī 1989 falls on Monday 6 November. Aṣṭamī runs from 10:20 on Mon 6 Nov to 09:51 on Tue 7 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/gopashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/durga-navami",
      "festival": "durga-navami",
      "name": "Durgā Navamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5450,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1989-11-07T09:51:30+08:00",
          "utc": "1989-11-07T01:51:30Z",
          "ms": 626406689969.5052
        },
        "end": {
          "local": "1989-11-08T08:39:41+08:00",
          "utc": "1989-11-08T00:39:41Z",
          "ms": 626488780819.3077
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-07T09:51:30+08:00",
          "utc": "1989-11-07T01:51:30Z",
          "ms": 626406689969.5052
        },
        "end": {
          "local": "1989-11-08T08:39:41+08:00",
          "utc": "1989-11-08T00:39:41Z",
          "ms": 626488780819.3077
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-11-07",
          "window": {
            "start": {
              "local": "1989-11-07T11:22:20+08:00",
              "utc": "1989-11-07T03:22:20Z",
              "ms": 626412139796.6637
            },
            "end": {
              "local": "1989-11-07T12:10:20+08:00",
              "utc": "1989-11-07T04:10:20Z",
              "ms": 626415019796.6637
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-11-08",
          "window": {
            "start": {
              "local": "1989-11-08T11:22:24+08:00",
              "utc": "1989-11-08T03:22:24Z",
              "ms": 626498543523.9215
            },
            "end": {
              "local": "1989-11-08T12:10:24+08:00",
              "utc": "1989-11-08T04:10:24Z",
              "ms": 626501423523.9215
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 09:51 on Tue 7 Nov to 08:40 on Wed 8 Nov.",
          "fact": "1989-11-07T01:51:30Z → 1989-11-08T00:39:41Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 7th, 11:22–12:10 on the 8th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 7th and 0 of 48 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 5450 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Navamī, Fuzhou, 1989: Tuesday 7 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "durga-navami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Durgā Navamī 1989 falls on Tuesday 7 November. Navamī runs from 09:51 on Tue 7 Nov to 08:40 on Wed 8 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/durga-navami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/akshaya-navami",
      "festival": "akshaya-navami",
      "name": "Akṣaya Navamī",
      "everyday": "Amla Navami",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-08",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "tie-break-unstated"
      ],
      "boundary_margin_s": 272,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1989-11-07T09:51:30+08:00",
          "utc": "1989-11-07T01:51:30Z",
          "ms": 626406689969.5052
        },
        "end": {
          "local": "1989-11-08T08:39:41+08:00",
          "utc": "1989-11-08T00:39:41Z",
          "ms": 626488780819.3077
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-07T09:51:30+08:00",
          "utc": "1989-11-07T01:51:30Z",
          "ms": 626406689969.5052
        },
        "end": {
          "local": "1989-11-08T08:39:41+08:00",
          "utc": "1989-11-08T00:39:41Z",
          "ms": 626488780819.3077
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1989-11-07",
          "window": {
            "start": {
              "local": "1989-11-07T06:15:27+08:00",
              "utc": "1989-11-06T22:15:27Z",
              "ms": 626393727270.2043
            },
            "end": {
              "local": "1989-11-07T09:56:02+08:00",
              "utc": "1989-11-07T01:56:02Z",
              "ms": 626406962287.8439
            }
          },
          "covered_min": 5,
          "window_min": 221,
          "qualifies": true
        },
        {
          "local_date": "1989-11-08",
          "window": {
            "start": {
              "local": "1989-11-08T06:16:08+08:00",
              "utc": "1989-11-07T22:16:08Z",
              "ms": 626480168184.1223
            },
            "end": {
              "local": "1989-11-08T09:56:18+08:00",
              "utc": "1989-11-08T01:56:18Z",
              "ms": 626493378410.6552
            }
          },
          "covered_min": 144,
          "window_min": 220,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 09:51 on Tue 7 Nov to 08:40 on Wed 8 Nov.",
          "fact": "1989-11-07T01:51:30Z → 1989-11-08T00:39:41Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:15–09:56 on the 7th, 06:16–09:56 on the 8th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during pūrvāhṇa. It covers 5 of 221 minutes on the 7th and 144 of 220 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 272 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Navamī, Fuzhou, 1989: Wednesday 8 November.",
          "fact": "confidence: boundary (margin, tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "akshaya-navami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata."
          }
        ],
        "kaala": "purvahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-08",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-08",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Akṣaya Navamī (Amla Navami) 1989 falls on Wednesday 8 November. Navamī runs from 09:51 on Tue 7 Nov to 08:40 on Wed 8 Nov and covers 144 of 220 minutes of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 5 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 32 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/akshaya-navami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-11-09",
      "festival": "ekadashi",
      "name": "Prabodhinī Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1669,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-11-09T06:44:39+08:00",
          "utc": "1989-11-08T22:44:39Z",
          "ms": 626568278594.3783
        },
        "end": {
          "local": "1989-11-10T04:10:00+08:00",
          "utc": "1989-11-09T20:10:00Z",
          "ms": 626645399591.7649
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-09T06:44:39+08:00",
          "utc": "1989-11-08T22:44:39Z",
          "ms": 626568278594.3783
        },
        "end": {
          "local": "1989-11-10T04:10:00+08:00",
          "utc": "1989-11-09T20:10:00Z",
          "ms": 626645399591.7649
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-11-09",
          "window": {
            "start": {
              "local": "1989-11-09T06:16:49+08:00",
              "utc": "1989-11-08T22:16:49Z",
              "ms": 626566609446.7759
            },
            "end": {
              "local": "1989-11-09T06:16:49+08:00",
              "utc": "1989-11-08T22:16:49Z",
              "ms": 626566609446.7759
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-11-10",
          "window": {
            "start": {
              "local": "1989-11-10T06:17:31+08:00",
              "utc": "1989-11-09T22:17:31Z",
              "ms": 626653051045.8445
            },
            "end": {
              "local": "1989-11-10T06:17:31+08:00",
              "utc": "1989-11-09T22:17:31Z",
              "ms": 626653051045.8445
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:45 on Thu 9 Nov to 04:10 on Fri 10 Nov.",
          "fact": "1989-11-08T22:44:39Z → 1989-11-09T20:10:00Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:17 on the 9th and 06:18 on the 10th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 9th and is not on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Neither sunrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: paraviddha → tithi-day · margin 1669 s"
        },
        {
          "step": "ruling",
          "text": "Prabodhinī Ekādaśī, Fuzhou, 1989: Thursday 9 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Prabodhinī Ekādaśī 1989 falls on Thursday 9 November. Ekādaśī runs from 06:45 on Thu 9 Nov to 04:10 on Fri 10 Nov, and is current at sunrise on neither day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-11-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-11-11",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8987,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-11-11T01:02:04+08:00",
          "utc": "1989-11-10T17:02:04Z",
          "ms": 626720524118.8359
        },
        "end": {
          "local": "1989-11-11T21:29:24+08:00",
          "utc": "1989-11-11T13:29:24Z",
          "ms": 626794164170.001
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-11T01:02:04+08:00",
          "utc": "1989-11-10T17:02:04Z",
          "ms": 626720524118.8359
        },
        "end": {
          "local": "1989-11-11T21:29:24+08:00",
          "utc": "1989-11-11T13:29:24Z",
          "ms": 626794164170.001
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-11-10",
          "window": {
            "start": {
              "local": "1989-11-10T17:15:36+08:00",
              "utc": "1989-11-10T09:15:36Z",
              "ms": 626692535877.2908
            },
            "end": {
              "local": "1989-11-10T18:59:57+08:00",
              "utc": "1989-11-10T10:59:57Z",
              "ms": 626698796822.9291
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        },
        {
          "local_date": "1989-11-11",
          "window": {
            "start": {
              "local": "1989-11-11T17:15:06+08:00",
              "utc": "1989-11-11T09:15:06Z",
              "ms": 626778906393.3429
            },
            "end": {
              "local": "1989-11-11T18:59:37+08:00",
              "utc": "1989-11-11T10:59:37Z",
              "ms": 626785176901.7909
            }
          },
          "covered_min": 105,
          "window_min": 105,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 01:02 on Sat 11 Nov to 21:29 on Sat 11 Nov.",
          "fact": "1989-11-10T17:02:04Z → 1989-11-11T13:29:24Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:16–19:00 on the 10th, 17:15–19:00 on the 11th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 104 minutes on the 10th and 105 of 105 on the 11th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8987 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Saturday 11 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Saturday 11 November. Trayodaśī runs from 01:02 on Sat 11 Nov to 21:29 on Sat 11 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-11-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/rasayatra",
      "festival": "rasayatra",
      "name": "Rāsayātrā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20461,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-11-12T17:42:07+08:00",
          "utc": "1989-11-12T09:42:07Z",
          "ms": 626866927481.8972
        },
        "end": {
          "local": "1989-11-13T13:51:24+08:00",
          "utc": "1989-11-13T05:51:24Z",
          "ms": 626939483588.9934
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-12T17:42:07+08:00",
          "utc": "1989-11-12T09:42:07Z",
          "ms": 626866927481.8972
        },
        "end": {
          "local": "1989-11-13T13:51:24+08:00",
          "utc": "1989-11-13T05:51:24Z",
          "ms": 626939483588.9934
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-11-12",
          "window": {
            "start": {
              "local": "1989-11-12T23:23:08+08:00",
              "utc": "1989-11-12T15:23:08Z",
              "ms": 626887388011.9541
            },
            "end": {
              "local": "1989-11-13T00:11:08+08:00",
              "utc": "1989-11-12T16:11:08Z",
              "ms": 626890268011.9541
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-11-13",
          "window": {
            "start": {
              "local": "1989-11-13T23:23:16+08:00",
              "utc": "1989-11-13T15:23:16Z",
              "ms": 626973796064.1609
            },
            "end": {
              "local": "1989-11-14T00:11:16+08:00",
              "utc": "1989-11-13T16:11:16Z",
              "ms": 626976676064.1609
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:42 on Sun 12 Nov to 13:51 on Mon 13 Nov.",
          "fact": "1989-11-12T09:42:07Z → 1989-11-13T05:51:24Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 12th, 23:23–00:11 on the 13th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during niśītha. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 20461 s"
        },
        {
          "step": "ruling",
          "text": "Rāsayātrā, Fuzhou, 1989: Sunday 12 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rasayatra",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima."
          }
        ],
        "kaala": "nishita",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Rāsayātrā 1989 falls on Sunday 12 November. Pūrṇimā runs from 17:42 on Sun 12 Nov to 13:51 on Mon 13 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/rasayatra",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/kartiki-purnima",
      "festival": "kartiki-purnima",
      "name": "Kārtikī Pūrṇimā",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6029,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-11-12T17:42:07+08:00",
          "utc": "1989-11-12T09:42:07Z",
          "ms": 626866927481.8972
        },
        "end": {
          "local": "1989-11-13T13:51:24+08:00",
          "utc": "1989-11-13T05:51:24Z",
          "ms": 626939483588.9934
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-12T17:42:07+08:00",
          "utc": "1989-11-12T09:42:07Z",
          "ms": 626866927481.8972
        },
        "end": {
          "local": "1989-11-13T13:51:24+08:00",
          "utc": "1989-11-13T05:51:24Z",
          "ms": 626939483588.9934
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-11-12",
          "window": {
            "start": {
              "local": "1989-11-12T11:22:47+08:00",
              "utc": "1989-11-12T03:22:47Z",
              "ms": 626844166742.3247
            },
            "end": {
              "local": "1989-11-12T12:10:47+08:00",
              "utc": "1989-11-12T04:10:47Z",
              "ms": 626847046742.3247
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-11-13",
          "window": {
            "start": {
              "local": "1989-11-13T11:22:55+08:00",
              "utc": "1989-11-13T03:22:55Z",
              "ms": 626930574649.4558
            },
            "end": {
              "local": "1989-11-13T12:10:55+08:00",
              "utc": "1989-11-13T04:10:55Z",
              "ms": 626933454649.4558
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:42 on Sun 12 Nov to 13:51 on Mon 13 Nov.",
          "fact": "1989-11-12T09:42:07Z → 1989-11-13T05:51:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 12th, 11:23–12:11 on the 13th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 6029 s"
        },
        {
          "step": "ruling",
          "text": "Kārtikī Pūrṇimā, Fuzhou, 1989: Monday 13 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "kartiki-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kārtikī Pūrṇimā 1989 falls on Monday 13 November. Pūrṇimā runs from 17:42 on Sun 12 Nov to 13:51 on Mon 13 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/kartiki-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-11-16",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20192,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-11-16T03:54:36+08:00",
          "utc": "1989-11-15T19:54:36Z",
          "ms": 627162876130.0297
        },
        "end": {
          "local": "1989-11-17T01:43:41+08:00",
          "utc": "1989-11-16T17:43:41Z",
          "ms": 627241421354.2555
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-16T03:54:36+08:00",
          "utc": "1989-11-15T19:54:36Z",
          "ms": 627162876130.0297
        },
        "end": {
          "local": "1989-11-17T01:43:41+08:00",
          "utc": "1989-11-16T17:43:41Z",
          "ms": 627241421354.2555
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-11-15",
          "window": {
            "start": {
              "local": "1989-11-15T19:01:32+08:00",
              "utc": "1989-11-15T11:01:32Z",
              "ms": 627130891683.6252
            },
            "end": {
              "local": "1989-11-15T19:01:32+08:00",
              "utc": "1989-11-15T11:01:32Z",
              "ms": 627130891683.6252
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-11-16",
          "window": {
            "start": {
              "local": "1989-11-16T20:07:09+08:00",
              "utc": "1989-11-16T12:07:09Z",
              "ms": 627221229118.3468
            },
            "end": {
              "local": "1989-11-16T20:07:09+08:00",
              "utc": "1989-11-16T12:07:09Z",
              "ms": 627221229118.3468
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:55 on Thu 16 Nov to 01:44 on Fri 17 Nov.",
          "fact": "1989-11-15T19:54:36Z → 1989-11-16T17:43:41Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:02 on the 15th and 20:07 on the 16th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 15th and is on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 20192 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Thursday 16 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Thursday 16 November. Caturthī runs from 03:55 on Thu 16 Nov to 01:44 on Fri 17 Nov and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-11-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-11-24",
      "festival": "ekadashi",
      "name": "Utpannā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3185,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-11-23T05:33:51+08:00",
          "utc": "1989-11-22T21:33:51Z",
          "ms": 627773631144.8125
        },
        "end": {
          "local": "1989-11-24T08:07:42+08:00",
          "utc": "1989-11-24T00:07:42Z",
          "ms": 627869262043.7991
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-23T05:33:51+08:00",
          "utc": "1989-11-22T21:33:51Z",
          "ms": 627773631144.8125
        },
        "end": {
          "local": "1989-11-24T08:07:42+08:00",
          "utc": "1989-11-24T00:07:42Z",
          "ms": 627869262043.7991
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-11-23",
          "window": {
            "start": {
              "local": "1989-11-23T06:26:56+08:00",
              "utc": "1989-11-22T22:26:56Z",
              "ms": 627776816088.496
            },
            "end": {
              "local": "1989-11-23T06:26:56+08:00",
              "utc": "1989-11-22T22:26:56Z",
              "ms": 627776816088.496
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-11-24",
          "window": {
            "start": {
              "local": "1989-11-24T06:27:41+08:00",
              "utc": "1989-11-23T22:27:41Z",
              "ms": 627863260693.0562
            },
            "end": {
              "local": "1989-11-24T06:27:41+08:00",
              "utc": "1989-11-23T22:27:41Z",
              "ms": 627863260693.0562
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 05:34 on Thu 23 Nov to 08:08 on Fri 24 Nov.",
          "fact": "1989-11-22T21:33:51Z → 1989-11-24T00:07:42Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:27 on the 23rd and 06:28 on the 24th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 23rd and is on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Both sunrises qualify. Paraviddhā: the second is taken.",
          "fact": "priority: paraviddha → paraviddha · margin 3185 s"
        },
        {
          "step": "ruling",
          "text": "Utpannā Ekādaśī, Fuzhou, 1989: Friday 24 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Utpannā Ekādaśī 1989 falls on Friday 24 November. Ekādaśī runs from 05:34 on Thu 23 Nov to 08:08 on Fri 24 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-11-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-11-25",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14020,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-11-25T10:45:10+08:00",
          "utc": "1989-11-25T02:45:10Z",
          "ms": 627965110065.2996
        },
        "end": {
          "local": "1989-11-26T13:16:58+08:00",
          "utc": "1989-11-26T05:16:58Z",
          "ms": 628060618359.2145
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-25T10:45:10+08:00",
          "utc": "1989-11-25T02:45:10Z",
          "ms": 627965110065.2996
        },
        "end": {
          "local": "1989-11-26T13:16:58+08:00",
          "utc": "1989-11-26T05:16:58Z",
          "ms": 628060618359.2145
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-11-25",
          "window": {
            "start": {
              "local": "1989-11-25T17:10:46+08:00",
              "utc": "1989-11-25T09:10:46Z",
              "ms": 627988246005.5792
            },
            "end": {
              "local": "1989-11-25T18:57:13+08:00",
              "utc": "1989-11-25T10:57:13Z",
              "ms": 627994633194.7577
            }
          },
          "covered_min": 106,
          "window_min": 106,
          "qualifies": true
        },
        {
          "local_date": "1989-11-26",
          "window": {
            "start": {
              "local": "1989-11-26T17:10:39+08:00",
              "utc": "1989-11-26T09:10:39Z",
              "ms": 628074638846.2454
            },
            "end": {
              "local": "1989-11-26T18:57:13+08:00",
              "utc": "1989-11-26T10:57:13Z",
              "ms": 628081032930.6139
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 10:45 on Sat 25 Nov to 13:17 on Sun 26 Nov.",
          "fact": "1989-11-25T02:45:10Z → 1989-11-26T05:16:58Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:11–18:57 on the 25th, 17:11–18:57 on the 26th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 25th and 0 of 107 on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 14020 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Saturday 25 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Saturday 25 November. Trayodaśī runs from 10:45 on Sat 25 Nov to 13:17 on Sun 26 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-11-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-11-26",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-11-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28192,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-11-26T13:16:58+08:00",
          "utc": "1989-11-26T05:16:58Z",
          "ms": 628060618359.2145
        },
        "end": {
          "local": "1989-11-27T15:36:44+08:00",
          "utc": "1989-11-27T07:36:44Z",
          "ms": 628155404489.0283
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-11-26T13:16:58+08:00",
          "utc": "1989-11-26T05:16:58Z",
          "ms": 628060618359.2145
        },
        "end": {
          "local": "1989-11-27T15:36:44+08:00",
          "utc": "1989-11-27T07:36:44Z",
          "ms": 628155404489.0283
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-11-26",
          "window": {
            "start": {
              "local": "1989-11-26T23:26:17+08:00",
              "utc": "1989-11-26T15:26:17Z",
              "ms": 628097176662.6276
            },
            "end": {
              "local": "1989-11-27T00:14:17+08:00",
              "utc": "1989-11-26T16:14:17Z",
              "ms": 628100056662.6276
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1989-11-27",
          "window": {
            "start": {
              "local": "1989-11-27T23:26:36+08:00",
              "utc": "1989-11-27T15:26:36Z",
              "ms": 628183596094.4929
            },
            "end": {
              "local": "1989-11-28T00:14:36+08:00",
              "utc": "1989-11-27T16:14:36Z",
              "ms": 628186476094.4929
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 13:17 on Sun 26 Nov to 15:37 on Mon 27 Nov.",
          "fact": "1989-11-26T05:16:58Z → 1989-11-27T07:36:44Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:26–00:14 on the 26th, 23:27–00:15 on the 27th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28192 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Sunday 26 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-11-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-11-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Sunday 26 November. Caturdaśī runs from 13:17 on Sun 26 Nov to 15:37 on Mon 27 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-11-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-12-02",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35027,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-12-01T21:59:26+08:00",
          "utc": "1989-12-01T13:59:26Z",
          "ms": 628523965822.1088
        },
        "end": {
          "local": "1989-12-02T22:42:17+08:00",
          "utc": "1989-12-02T14:42:17Z",
          "ms": 628612937371.5652
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-01T21:59:26+08:00",
          "utc": "1989-12-01T13:59:26Z",
          "ms": 628523965822.1088
        },
        "end": {
          "local": "1989-12-02T22:42:17+08:00",
          "utc": "1989-12-02T14:42:17Z",
          "ms": 628612937371.5652
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-12-01",
          "window": {
            "start": {
              "local": "1989-12-01T11:27:39+08:00",
              "utc": "1989-12-01T03:27:39Z",
              "ms": 628486058890.9441
            },
            "end": {
              "local": "1989-12-01T12:15:39+08:00",
              "utc": "1989-12-01T04:15:39Z",
              "ms": 628488938890.9441
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-12-02",
          "window": {
            "start": {
              "local": "1989-12-02T11:28:02+08:00",
              "utc": "1989-12-02T03:28:02Z",
              "ms": 628572481812.247
            },
            "end": {
              "local": "1989-12-02T12:16:02+08:00",
              "utc": "1989-12-02T04:16:02Z",
              "ms": 628575361812.247
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 21:59 on Fri 1 Dec to 22:42 on Sat 2 Dec.",
          "fact": "1989-12-01T13:59:26Z → 1989-12-02T14:42:17Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 on the 1st, 11:28–12:16 on the 2nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 35027 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Saturday 2 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Saturday 2 December. Caturthī runs from 21:59 on Fri 1 Dec to 22:42 on Sat 2 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-12-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/naga-panchami-margashirsha",
      "festival": "naga-panchami-margashirsha",
      "name": "Nāga Pañcamī (Mārgaśīrṣa)",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37576,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1989-12-02T22:42:17+08:00",
          "utc": "1989-12-02T14:42:17Z",
          "ms": 628612937371.5652
        },
        "end": {
          "local": "1989-12-03T22:59:02+08:00",
          "utc": "1989-12-03T14:59:02Z",
          "ms": 628700342236.4375
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-02T22:42:17+08:00",
          "utc": "1989-12-02T14:42:17Z",
          "ms": 628612937371.5652
        },
        "end": {
          "local": "1989-12-03T22:59:02+08:00",
          "utc": "1989-12-03T14:59:02Z",
          "ms": 628700342236.4375
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-12-02",
          "window": {
            "start": {
              "local": "1989-12-02T11:28:02+08:00",
              "utc": "1989-12-02T03:28:02Z",
              "ms": 628572481812.247
            },
            "end": {
              "local": "1989-12-02T12:16:02+08:00",
              "utc": "1989-12-02T04:16:02Z",
              "ms": 628575361812.247
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-12-03",
          "window": {
            "start": {
              "local": "1989-12-03T11:28:25+08:00",
              "utc": "1989-12-03T03:28:25Z",
              "ms": 628658905349.4824
            },
            "end": {
              "local": "1989-12-03T12:16:25+08:00",
              "utc": "1989-12-03T04:16:25Z",
              "ms": 628661785349.4824
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 22:42 on Sat 2 Dec to 22:59 on Sun 3 Dec.",
          "fact": "1989-12-02T14:42:17Z → 1989-12-03T14:59:02Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 on the 2nd, 11:28–12:16 on the 3rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 2nd and 48 of 48 on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 37576 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī (Mārgaśīrṣa), Fuzhou, 1989: Sunday 3 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naga-panchami-margashirsha",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Naga pancami (2nd) (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Nāga Pañcamī (Mārgaśīrṣa) 1989 falls on Sunday 3 December. Pañcamī runs from 22:42 on Sat 2 Dec to 22:59 on Sun 3 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/naga-panchami-margashirsha",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/champa-shashthi",
      "festival": "champa-shashthi",
      "name": "Campā Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37769,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1989-12-03T22:59:02+08:00",
          "utc": "1989-12-03T14:59:02Z",
          "ms": 628700342236.4375
        },
        "end": {
          "local": "1989-12-04T22:46:18+08:00",
          "utc": "1989-12-04T14:46:18Z",
          "ms": 628785978091.7434
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-03T22:59:02+08:00",
          "utc": "1989-12-03T14:59:02Z",
          "ms": 628700342236.4375
        },
        "end": {
          "local": "1989-12-04T22:46:18+08:00",
          "utc": "1989-12-04T14:46:18Z",
          "ms": 628785978091.7434
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-12-03",
          "window": {
            "start": {
              "local": "1989-12-03T11:28:25+08:00",
              "utc": "1989-12-03T03:28:25Z",
              "ms": 628658905349.4824
            },
            "end": {
              "local": "1989-12-03T12:16:25+08:00",
              "utc": "1989-12-03T04:16:25Z",
              "ms": 628661785349.4824
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-12-04",
          "window": {
            "start": {
              "local": "1989-12-04T11:28:49+08:00",
              "utc": "1989-12-04T03:28:49Z",
              "ms": 628745329476.3654
            },
            "end": {
              "local": "1989-12-04T12:16:49+08:00",
              "utc": "1989-12-04T04:16:49Z",
              "ms": 628748209476.3654
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 22:59 on Sun 3 Dec to 22:46 on Mon 4 Dec.",
          "fact": "1989-12-03T14:59:02Z → 1989-12-04T14:46:18Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 on the 3rd, 11:29–12:17 on the 4th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 37769 s"
        },
        {
          "step": "ruling",
          "text": "Campā Ṣaṣṭhī, Fuzhou, 1989: Monday 4 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "champa-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi"
          }
        ],
        "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.",
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Campā Ṣaṣṭhī 1989 falls on Monday 4 December. Ṣaṣṭhī runs from 22:59 on Sun 3 Dec to 22:46 on Mon 4 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/champa-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/skanda-shashthi",
      "festival": "skanda-shashthi",
      "name": "Skanda Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37769,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1989-12-03T22:59:02+08:00",
          "utc": "1989-12-03T14:59:02Z",
          "ms": 628700342236.4375
        },
        "end": {
          "local": "1989-12-04T22:46:18+08:00",
          "utc": "1989-12-04T14:46:18Z",
          "ms": 628785978091.7434
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-03T22:59:02+08:00",
          "utc": "1989-12-03T14:59:02Z",
          "ms": 628700342236.4375
        },
        "end": {
          "local": "1989-12-04T22:46:18+08:00",
          "utc": "1989-12-04T14:46:18Z",
          "ms": 628785978091.7434
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-12-03",
          "window": {
            "start": {
              "local": "1989-12-03T11:28:25+08:00",
              "utc": "1989-12-03T03:28:25Z",
              "ms": 628658905349.4824
            },
            "end": {
              "local": "1989-12-03T12:16:25+08:00",
              "utc": "1989-12-03T04:16:25Z",
              "ms": 628661785349.4824
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-12-04",
          "window": {
            "start": {
              "local": "1989-12-04T11:28:49+08:00",
              "utc": "1989-12-04T03:28:49Z",
              "ms": 628745329476.3654
            },
            "end": {
              "local": "1989-12-04T12:16:49+08:00",
              "utc": "1989-12-04T04:16:49Z",
              "ms": 628748209476.3654
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 22:59 on Sun 3 Dec to 22:46 on Mon 4 Dec.",
          "fact": "1989-12-03T14:59:02Z → 1989-12-04T14:46:18Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 on the 3rd, 11:29–12:17 on the 4th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 37769 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī, Fuzhou, 1989: Monday 4 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "skanda-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Skanda Ṣaṣṭhī 1989 falls on Monday 4 December. Ṣaṣṭhī runs from 22:59 on Sun 3 Dec to 22:46 on Mon 4 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/skanda-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/mitra-saptami",
      "festival": "mitra-saptami",
      "name": "Mitra Saptamī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35033,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1989-12-04T22:46:18+08:00",
          "utc": "1989-12-04T14:46:18Z",
          "ms": 628785978091.7434
        },
        "end": {
          "local": "1989-12-05T22:01:07+08:00",
          "utc": "1989-12-05T14:01:07Z",
          "ms": 628869667209.9431
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-04T22:46:18+08:00",
          "utc": "1989-12-04T14:46:18Z",
          "ms": 628785978091.7434
        },
        "end": {
          "local": "1989-12-05T22:01:07+08:00",
          "utc": "1989-12-05T14:01:07Z",
          "ms": 628869667209.9431
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-12-04",
          "window": {
            "start": {
              "local": "1989-12-04T11:28:49+08:00",
              "utc": "1989-12-04T03:28:49Z",
              "ms": 628745329476.3654
            },
            "end": {
              "local": "1989-12-04T12:16:49+08:00",
              "utc": "1989-12-04T04:16:49Z",
              "ms": 628748209476.3654
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-12-05",
          "window": {
            "start": {
              "local": "1989-12-05T11:29:14+08:00",
              "utc": "1989-12-05T03:29:14Z",
              "ms": 628831754166.0933
            },
            "end": {
              "local": "1989-12-05T12:17:14+08:00",
              "utc": "1989-12-05T04:17:14Z",
              "ms": 628834634166.0933
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 22:46 on Mon 4 Dec to 22:01 on Tue 5 Dec.",
          "fact": "1989-12-04T14:46:18Z → 1989-12-05T14:01:07Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 4th, 11:29–12:17 on the 5th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 35033 s"
        },
        {
          "step": "ruling",
          "text": "Mitra Saptamī, Fuzhou, 1989: Tuesday 5 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mitra-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Mitra saptami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Mitra Saptamī 1989 falls on Tuesday 5 December. Saptamī runs from 22:46 on Mon 4 Dec to 22:01 on Tue 5 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/mitra-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-12-09",
      "festival": "ekadashi",
      "name": "Mokṣadā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24892,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-12-08T16:24:08+08:00",
          "utc": "1989-12-08T08:24:08Z",
          "ms": 629108648203.3497
        },
        "end": {
          "local": "1989-12-09T13:33:22+08:00",
          "utc": "1989-12-09T05:33:22Z",
          "ms": 629184801921.0991
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-08T16:24:08+08:00",
          "utc": "1989-12-08T08:24:08Z",
          "ms": 629108648203.3497
        },
        "end": {
          "local": "1989-12-09T13:33:22+08:00",
          "utc": "1989-12-09T05:33:22Z",
          "ms": 629184801921.0991
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-12-08",
          "window": {
            "start": {
              "local": "1989-12-08T06:37:50+08:00",
              "utc": "1989-12-07T22:37:50Z",
              "ms": 629073469541.4575
            },
            "end": {
              "local": "1989-12-08T06:37:50+08:00",
              "utc": "1989-12-07T22:37:50Z",
              "ms": 629073469541.4575
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1989-12-09",
          "window": {
            "start": {
              "local": "1989-12-09T06:38:30+08:00",
              "utc": "1989-12-08T22:38:30Z",
              "ms": 629159910278.1647
            },
            "end": {
              "local": "1989-12-09T06:38:30+08:00",
              "utc": "1989-12-08T22:38:30Z",
              "ms": 629159910278.1647
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 16:24 on Fri 8 Dec to 13:33 on Sat 9 Dec.",
          "fact": "1989-12-08T08:24:08Z → 1989-12-09T05:33:22Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:38 on the 8th and 06:39 on the 9th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 8th and is on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 24892 s"
        },
        {
          "step": "ruling",
          "text": "Mokṣadā Ekādaśī, Fuzhou, 1989: Saturday 9 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Mokṣadā Ekādaśī 1989 falls on Saturday 9 December. Ekādaśī runs from 16:24 on Fri 8 Dec to 13:33 on Sat 9 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-12-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/akhanda-dvadashi",
      "festival": "akhanda-dvadashi",
      "name": "Akhaṇḍa Dvādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4086,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1989-12-09T13:33:22+08:00",
          "utc": "1989-12-09T05:33:22Z",
          "ms": 629184801921.0991
        },
        "end": {
          "local": "1989-12-10T10:23:20+08:00",
          "utc": "1989-12-10T02:23:20Z",
          "ms": 629259799560.735
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-09T13:33:22+08:00",
          "utc": "1989-12-09T05:33:22Z",
          "ms": 629184801921.0991
        },
        "end": {
          "local": "1989-12-10T10:23:20+08:00",
          "utc": "1989-12-10T02:23:20Z",
          "ms": 629259799560.735
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-12-09",
          "window": {
            "start": {
              "local": "1989-12-09T11:30:58+08:00",
              "utc": "1989-12-09T03:30:58Z",
              "ms": 629177458018.1748
            },
            "end": {
              "local": "1989-12-09T12:18:58+08:00",
              "utc": "1989-12-09T04:18:58Z",
              "ms": 629180338018.1748
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-12-10",
          "window": {
            "start": {
              "local": "1989-12-10T11:31:25+08:00",
              "utc": "1989-12-10T03:31:25Z",
              "ms": 629263885122.8452
            },
            "end": {
              "local": "1989-12-10T12:19:25+08:00",
              "utc": "1989-12-10T04:19:25Z",
              "ms": 629266765122.8452
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 13:33 on Sat 9 Dec to 10:23 on Sun 10 Dec.",
          "fact": "1989-12-09T05:33:22Z → 1989-12-10T02:23:20Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:31–12:19 on the 9th, 11:31–12:19 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 0 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: paraviddha → second-day · margin 4086 s"
        },
        {
          "step": "ruling",
          "text": "Akhaṇḍa Dvādaśī, Fuzhou, 1989: Sunday 10 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "akhanda-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Akhaṇḍa Dvādaśī 1989 falls on Sunday 10 December. Dvādaśī runs from 13:33 on Sat 9 Dec to 10:23 on Sun 10 Dec, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/akhanda-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-12-10",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24500,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-12-10T10:23:20+08:00",
          "utc": "1989-12-10T02:23:20Z",
          "ms": 629259799560.735
        },
        "end": {
          "local": "1989-12-11T07:02:43+08:00",
          "utc": "1989-12-10T23:02:43Z",
          "ms": 629334162807.2546
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-10T10:23:20+08:00",
          "utc": "1989-12-10T02:23:20Z",
          "ms": 629259799560.735
        },
        "end": {
          "local": "1989-12-11T07:02:43+08:00",
          "utc": "1989-12-10T23:02:43Z",
          "ms": 629334162807.2546
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-12-10",
          "window": {
            "start": {
              "local": "1989-12-10T17:11:40+08:00",
              "utc": "1989-12-10T09:11:40Z",
              "ms": 629284299812.9456
            },
            "end": {
              "local": "1989-12-10T18:59:25+08:00",
              "utc": "1989-12-10T10:59:25Z",
              "ms": 629290765167.106
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        },
        {
          "local_date": "1989-12-11",
          "window": {
            "start": {
              "local": "1989-12-11T17:11:55+08:00",
              "utc": "1989-12-11T09:11:55Z",
              "ms": 629370715297.1047
            },
            "end": {
              "local": "1989-12-11T18:59:44+08:00",
              "utc": "1989-12-11T10:59:44Z",
              "ms": 629377183771.1184
            }
          },
          "covered_min": 0,
          "window_min": 108,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 10:23 on Sun 10 Dec to 07:03 on Mon 11 Dec.",
          "fact": "1989-12-10T02:23:20Z → 1989-12-10T23:02:43Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:12–18:59 on the 10th, 17:12–19:00 on the 11th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 10th and 0 of 108 on the 11th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 24500 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Fuzhou, 1989: Sunday 10 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1989 falls on Sunday 10 December. Trayodaśī runs from 10:23 on Sun 10 Dec to 07:03 on Mon 11 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-12-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/dattatreyotpatti",
      "festival": "dattatreyotpatti",
      "name": "Dattātreyotpatti",
      "everyday": "Datta Jayanti",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19789,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1989-12-12T03:41:23+08:00",
          "utc": "1989-12-11T19:41:23Z",
          "ms": 629408483354.5662
        },
        "end": {
          "local": "1989-12-13T00:29:53+08:00",
          "utc": "1989-12-12T16:29:53Z",
          "ms": 629483392734.2607
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-12T03:41:23+08:00",
          "utc": "1989-12-11T19:41:23Z",
          "ms": 629408483354.5662
        },
        "end": {
          "local": "1989-12-13T00:29:53+08:00",
          "utc": "1989-12-12T16:29:53Z",
          "ms": 629483392734.2607
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-12-11",
          "window": {
            "start": {
              "local": "1989-12-11T17:11:55+08:00",
              "utc": "1989-12-11T09:11:55Z",
              "ms": 629370715297.1047
            },
            "end": {
              "local": "1989-12-11T18:59:44+08:00",
              "utc": "1989-12-11T10:59:44Z",
              "ms": 629377183771.1184
            }
          },
          "covered_min": 0,
          "window_min": 108,
          "qualifies": false
        },
        {
          "local_date": "1989-12-12",
          "window": {
            "start": {
              "local": "1989-12-12T17:12:12+08:00",
              "utc": "1989-12-12T09:12:12Z",
              "ms": 629457132195.8341
            },
            "end": {
              "local": "1989-12-12T19:00:04+08:00",
              "utc": "1989-12-12T11:00:04Z",
              "ms": 629463603509.3334
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 03:41 on Tue 12 Dec to 00:30 on Wed 13 Dec.",
          "fact": "1989-12-11T19:41:23Z → 1989-12-12T16:29:53Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:12–19:00 on the 11th, 17:12–19:00 on the 12th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 108 minutes on the 11th and 108 of 108 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 19789 s"
        },
        {
          "step": "ruling",
          "text": "Dattātreyotpatti, Fuzhou, 1989: Tuesday 12 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "dattatreyotpatti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Dattatreyotpatti (pradosa)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Dattātreyotpatti (Datta Jayanti) 1989 falls on Tuesday 12 December. Pūrṇimā runs from 03:41 on Tue 12 Dec to 00:30 on Wed 13 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/dattatreyotpatti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-12-15",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8373,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-12-15T17:37:44+08:00",
          "utc": "1989-12-15T09:37:44Z",
          "ms": 629717863567.5549
        },
        "end": {
          "local": "1989-12-16T16:43:28+08:00",
          "utc": "1989-12-16T08:43:28Z",
          "ms": 629801007914.3607
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-15T17:37:44+08:00",
          "utc": "1989-12-15T09:37:44Z",
          "ms": 629717863567.5549
        },
        "end": {
          "local": "1989-12-16T16:43:28+08:00",
          "utc": "1989-12-16T08:43:28Z",
          "ms": 629801007914.3607
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1989-12-15",
          "window": {
            "start": {
              "local": "1989-12-15T19:57:17+08:00",
              "utc": "1989-12-15T11:57:17Z",
              "ms": 629726237008.2435
            },
            "end": {
              "local": "1989-12-15T19:57:17+08:00",
              "utc": "1989-12-15T11:57:17Z",
              "ms": 629726237008.2435
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-12-16",
          "window": {
            "start": {
              "local": "1989-12-16T20:59:39+08:00",
              "utc": "1989-12-16T12:59:39Z",
              "ms": 629816378548.4055
            },
            "end": {
              "local": "1989-12-16T20:59:39+08:00",
              "utc": "1989-12-16T12:59:39Z",
              "ms": 629816378548.4055
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:38 on Fri 15 Dec to 16:43 on Sat 16 Dec.",
          "fact": "1989-12-15T09:37:44Z → 1989-12-16T08:43:28Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:57 on the 15th and 21:00 on the 16th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 15th and is not on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8373 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1989: Friday 15 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1989 falls on Friday 15 December. Caturthī runs from 17:38 on Fri 15 Dec to 16:43 on Sat 16 Dec and is current at moonrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/sankashta-chaturthi?on=1989-12-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/ekadashi?on=1989-12-23",
      "festival": "ekadashi",
      "name": "Saphalā Ekādaśī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7815,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1989-12-23T02:05:14+08:00",
          "utc": "1989-12-22T18:05:14Z",
          "ms": 630353114446.1667
        },
        "end": {
          "local": "1989-12-24T04:36:57+08:00",
          "utc": "1989-12-23T20:36:57Z",
          "ms": 630448616567.2845
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-23T02:05:14+08:00",
          "utc": "1989-12-22T18:05:14Z",
          "ms": 630353114446.1667
        },
        "end": {
          "local": "1989-12-24T04:36:57+08:00",
          "utc": "1989-12-23T20:36:57Z",
          "ms": 630448616567.2845
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1989-12-23",
          "window": {
            "start": {
              "local": "1989-12-23T06:46:43+08:00",
              "utc": "1989-12-22T22:46:43Z",
              "ms": 630370003197.6445
            },
            "end": {
              "local": "1989-12-23T06:46:43+08:00",
              "utc": "1989-12-22T22:46:43Z",
              "ms": 630370003197.6445
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1989-12-24",
          "window": {
            "start": {
              "local": "1989-12-24T06:47:11+08:00",
              "utc": "1989-12-23T22:47:11Z",
              "ms": 630456431420.6732
            },
            "end": {
              "local": "1989-12-24T06:47:11+08:00",
              "utc": "1989-12-23T22:47:11Z",
              "ms": 630456431420.6732
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 02:05 on Sat 23 Dec to 04:37 on Sun 24 Dec.",
          "fact": "1989-12-22T18:05:14Z → 1989-12-23T20:36:57Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:47 on the 23rd and 06:47 on the 24th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 23rd and is not on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 7815 s"
        },
        {
          "step": "ruling",
          "text": "Saphalā Ekādaśī, Fuzhou, 1989: Saturday 23 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Saphalā Ekādaśī 1989 falls on Saturday 23 December. Ekādaśī runs from 02:05 on Sat 23 Dec to 04:37 on Sun 24 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/ekadashi?on=1989-12-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/pradosha-vrata?on=1989-12-25",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30613,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1989-12-25T06:53:35+08:00",
          "utc": "1989-12-24T22:53:35Z",
          "ms": 630543214797.4005
        },
        "end": {
          "local": "1989-12-26T08:48:12+08:00",
          "utc": "1989-12-26T00:48:12Z",
          "ms": 630636491943.9991
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-25T06:53:35+08:00",
          "utc": "1989-12-24T22:53:35Z",
          "ms": 630543214797.4005
        },
        "end": {
          "local": "1989-12-26T08:48:12+08:00",
          "utc": "1989-12-26T00:48:12Z",
          "ms": 630636491943.9991
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1989-12-25",
          "window": {
            "start": {
              "local": "1989-12-25T17:17:51+08:00",
              "utc": "1989-12-25T09:17:51Z",
              "ms": 630580671138.1124
            },
            "end": {
              "local": "1989-12-25T19:05:53+08:00",
              "utc": "1989-12-25T11:05:53Z",
              "ms": 630587152913.6854
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        },
        {
          "local_date": "1989-12-26",
          "window": {
            "start": {
              "local": "1989-12-26T17:18:25+08:00",
              "utc": "1989-12-26T09:18:25Z",
              "ms": 630667105372.7767
            },
            "end": {
              "local": "1989-12-26T19:06:26+08:00",
              "utc": "1989-12-26T11:06:26Z",
              "ms": 630673585882.7484
            }
          },
          "covered_min": 0,
          "window_min": 108,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 06:54 on Mon 25 Dec to 08:48 on Tue 26 Dec.",
          "fact": "1989-12-24T22:53:35Z → 1989-12-26T00:48:12Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:18–19:06 on the 25th, 17:18–19:06 on the 26th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 25th and 0 of 108 on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 30613 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1989: Monday 25 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1989 falls on Monday 25 December. Trayodaśī runs from 06:54 on Mon 25 Dec to 08:48 on Tue 26 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/pradosha-vrata?on=1989-12-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/shivaratri?on=1989-12-26",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30074,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1989-12-26T08:48:12+08:00",
          "utc": "1989-12-26T00:48:12Z",
          "ms": 630636491943.9991
        },
        "end": {
          "local": "1989-12-27T10:17:12+08:00",
          "utc": "1989-12-27T02:17:12Z",
          "ms": 630728231904.1218
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-26T08:48:12+08:00",
          "utc": "1989-12-26T00:48:12Z",
          "ms": 630636491943.9991
        },
        "end": {
          "local": "1989-12-27T10:17:12+08:00",
          "utc": "1989-12-27T02:17:12Z",
          "ms": 630728231904.1218
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1989-12-25",
          "window": {
            "start": {
              "local": "1989-12-25T23:38:58+08:00",
              "utc": "1989-12-25T15:38:58Z",
              "ms": 630603537796.511
            },
            "end": {
              "local": "1989-12-26T00:26:58+08:00",
              "utc": "1989-12-25T16:26:58Z",
              "ms": 630606417796.511
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1989-12-26",
          "window": {
            "start": {
              "local": "1989-12-26T23:39:27+08:00",
              "utc": "1989-12-26T15:39:27Z",
              "ms": 630689967285.1704
            },
            "end": {
              "local": "1989-12-27T00:27:27+08:00",
              "utc": "1989-12-26T16:27:27Z",
              "ms": 630692847285.1704
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 08:48 on Tue 26 Dec to 10:17 on Wed 27 Dec.",
          "fact": "1989-12-26T00:48:12Z → 1989-12-27T02:17:12Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:39–00:27 on the 25th, 23:39–00:27 on the 26th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 30074 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Fuzhou, 1989: Tuesday 26 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Fuzhou, Śivarātri 1989 falls on Tuesday 26 December. Caturdaśī runs from 08:48 on Tue 26 Dec to 10:17 on Wed 27 Dec and covers all of niśītha that night.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/shivaratri?on=1989-12-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-12-31",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1810821",
      "year": 1989,
      "local_date": "1989-12-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 905,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1989-12-31T11:56:48+08:00",
          "utc": "1989-12-31T03:56:48Z",
          "ms": 631079807974.9824
        },
        "end": {
          "local": "1990-01-01T11:23:27+08:00",
          "utc": "1990-01-01T03:23:27Z",
          "ms": 631164207272.116
        },
        "month": {
          "amanta": 9,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1989-12-31T11:56:48+08:00",
          "utc": "1989-12-31T03:56:48Z",
          "ms": 631079807974.9824
        },
        "end": {
          "local": "1990-01-01T11:23:27+08:00",
          "utc": "1990-01-01T03:23:27Z",
          "ms": 631164207272.116
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1989-12-31",
          "window": {
            "start": {
              "local": "1989-12-31T11:41:43+08:00",
              "utc": "1989-12-31T03:41:43Z",
              "ms": 631078903007.1057
            },
            "end": {
              "local": "1989-12-31T12:29:43+08:00",
              "utc": "1989-12-31T04:29:43Z",
              "ms": 631081783007.1057
            }
          },
          "covered_min": 33,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1990-01-01",
          "window": {
            "start": {
              "local": "1990-01-01T11:42:11+08:00",
              "utc": "1990-01-01T03:42:11Z",
              "ms": 631165331395.8572
            },
            "end": {
              "local": "1990-01-01T12:30:11+08:00",
              "utc": "1990-01-01T04:30:11Z",
              "ms": 631168211395.8572
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 11:57 on Sun 31 Dec to 11:23 on Mon 1 Jan.",
          "fact": "1989-12-31T03:56:48Z → 1990-01-01T03:23:27Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 31st, 11:42–12:30 on the 1st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 33 of 48 minutes on the 31st and 0 of 48 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 905 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Fuzhou, 1989: Sunday 31 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1989-12-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1989-12-31",
          "confidence": "boundary"
        }
      ],
      "quote": "In Fuzhou, Vināyaka Caturthī 1989 falls on Sunday 31 December. Caturthī runs from 11:57 on Sun 31 Dec to 11:23 on Mon 1 Jan and covers 33 of 48 minutes of madhyāhna that midday.",
      "cite": "https://ahargana.org/fuzhou/festivals/1989/vinayaka-chaturthi?on=1989-12-31",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    }
  ],
  "engine": {
    "version": "0.1.0",
    "ruleset": "2026.3-draft",
    "kernel": "de440-1900-2100",
    "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
    "tzdata": "2026f"
  }
}
