{
  "id": "/beijing/festivals/2004",
  "place": {
    "id": "1816670",
    "slug": "beijing",
    "name": "Beijing",
    "region": "China",
    "country": "CN",
    "lat": 39.9075,
    "lon": 116.39723,
    "elevation_m": 49,
    "tz": "Asia/Shanghai"
  },
  "year": 2004,
  "tradition": "smarta",
  "method": "pac-rp@2026.1",
  "ruleset": "2026.3-draft",
  "rulings": [
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-01-03",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13567,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-01-02T11:22:30+08:00",
          "utc": "2004-01-02T03:22:30Z",
          "ms": 1073013750280.8002
        },
        "end": {
          "local": "2004-01-03T14:07:31+08:00",
          "utc": "2004-01-03T06:07:31Z",
          "ms": 1073110050720.0292
        },
        "month": {
          "amanta": 9,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-02T11:22:30+08:00",
          "utc": "2004-01-02T03:22:30Z",
          "ms": 1073013750280.8002
        },
        "end": {
          "local": "2004-01-03T14:07:31+08:00",
          "utc": "2004-01-03T06:07:31Z",
          "ms": 1073110050720.0292
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-01-02",
          "window": {
            "start": {
              "local": "2004-01-02T07:36:23+08:00",
              "utc": "2004-01-01T23:36:23Z",
              "ms": 1073000182957.3527
            },
            "end": {
              "local": "2004-01-02T07:36:23+08:00",
              "utc": "2004-01-01T23:36:23Z",
              "ms": 1073000182957.3527
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-01-03",
          "window": {
            "start": {
              "local": "2004-01-03T07:36:29+08:00",
              "utc": "2004-01-02T23:36:29Z",
              "ms": 1073086589338.037
            },
            "end": {
              "local": "2004-01-03T07:36:29+08:00",
              "utc": "2004-01-02T23:36:29Z",
              "ms": 1073086589338.037
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 11:23 on Fri 2 Jan to 14:08 on Sat 3 Jan.",
          "fact": "2004-01-02T03:22:30Z → 2004-01-03T06:07:31Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:36 on the 2nd and 07:36 on the 3rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 2nd and is 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 13567 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Beijing, 2004: Saturday 3 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": "2004-01-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Putradā Ekādaśī 2004 falls on Saturday 3 January. Ekādaśī runs from 11:23 on Fri 2 Jan to 14:08 on Sat 3 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-01-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-01-04",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-04",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 489,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-01-04T16:53:23+08:00",
          "utc": "2004-01-04T08:53:23Z",
          "ms": 1073206402901.0789
        },
        "end": {
          "local": "2004-01-05T19:28:52+08:00",
          "utc": "2004-01-05T11:28:52Z",
          "ms": 1073302131677.0594
        },
        "month": {
          "amanta": 9,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-04T16:53:23+08:00",
          "utc": "2004-01-04T08:53:23Z",
          "ms": 1073206402901.0789
        },
        "end": {
          "local": "2004-01-05T19:28:52+08:00",
          "utc": "2004-01-05T11:28:52Z",
          "ms": 1073302131677.0594
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-01-04",
          "window": {
            "start": {
              "local": "2004-01-04T17:01:32+08:00",
              "utc": "2004-01-04T09:01:32Z",
              "ms": 1073206892227.3839
            },
            "end": {
              "local": "2004-01-04T18:58:13+08:00",
              "utc": "2004-01-04T10:58:13Z",
              "ms": 1073213892657.7463
            }
          },
          "covered_min": 117,
          "window_min": 117,
          "qualifies": true
        },
        {
          "local_date": "2004-01-05",
          "window": {
            "start": {
              "local": "2004-01-05T17:02:25+08:00",
              "utc": "2004-01-05T09:02:25Z",
              "ms": 1073293345493.3472
            },
            "end": {
              "local": "2004-01-05T18:58:59+08:00",
              "utc": "2004-01-05T10:58:59Z",
              "ms": 1073300338785.6696
            }
          },
          "covered_min": 117,
          "window_min": 117,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 16:53 on Sun 4 Jan to 19:29 on Mon 5 Jan.",
          "fact": "2004-01-04T08:53:23Z → 2004-01-05T11:28:52Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:02–18:58 on the 4th, 17:02–18:59 on the 5th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 117 of 117 minutes on the 4th and 117 of 117 on the 5th.",
          "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 489 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Sunday 4 January.",
          "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": "2004-01-04",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-04",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Sunday 4 January. Trayodaśī runs from 16:53 on Sun 4 Jan to 19:29 on Mon 5 Jan and covers all of pradoṣa that evening. It also reaches the next evening for 117 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/beijing/festivals/2004/pradosha-vrata?on=2004-01-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-01-11",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23108,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-01-11T02:53:07+08:00",
          "utc": "2004-01-10T18:53:07Z",
          "ms": 1073760787367.7893
        },
        "end": {
          "local": "2004-01-12T03:08:26+08:00",
          "utc": "2004-01-11T19:08:26Z",
          "ms": 1073848105990.1179
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-11T02:53:07+08:00",
          "utc": "2004-01-10T18:53:07Z",
          "ms": 1073760787367.7893
        },
        "end": {
          "local": "2004-01-12T03:08:26+08:00",
          "utc": "2004-01-11T19:08:26Z",
          "ms": 1073848105990.1179
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-01-10",
          "window": {
            "start": {
              "local": "2004-01-10T19:37:02+08:00",
              "utc": "2004-01-10T11:37:02Z",
              "ms": 1073734621808.8289
            },
            "end": {
              "local": "2004-01-10T19:37:02+08:00",
              "utc": "2004-01-10T11:37:02Z",
              "ms": 1073734621808.8289
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-01-11",
          "window": {
            "start": {
              "local": "2004-01-11T20:43:18+08:00",
              "utc": "2004-01-11T12:43:18Z",
              "ms": 1073824998223.7504
            },
            "end": {
              "local": "2004-01-11T20:43:18+08:00",
              "utc": "2004-01-11T12:43:18Z",
              "ms": 1073824998223.7504
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 02:53 on Sun 11 Jan to 03:08 on Mon 12 Jan.",
          "fact": "2004-01-10T18:53:07Z → 2004-01-11T19:08:26Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:37 on the 10th and 20:43 on the 11th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 10th and is on the 11th.",
          "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 23108 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Sunday 11 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": "2004-01-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Sunday 11 January. Caturthī runs from 02:53 on Sun 11 Jan to 03:08 on Mon 12 Jan and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-01-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/bhogi",
      "festival": "bhogi",
      "name": "Bhogi",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32486,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        },
        "end": {
          "local": "2004-02-13T15:11:03+08:00",
          "utc": "2004-02-13T07:11:03Z",
          "ms": 1076656263005.8335
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        },
        "end": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2004-01-14",
          "window": {
            "start": {
              "local": "2004-01-13T17:10:16+08:00",
              "utc": "2004-01-13T09:10:16Z",
              "ms": 1073985016407.2705
            },
            "end": {
              "local": "2004-01-14T17:11:20+08:00",
              "utc": "2004-01-14T09:11:20Z",
              "ms": 1074071480110.3496
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        },
        {
          "local_date": "2004-01-15",
          "window": {
            "start": {
              "local": "2004-01-14T17:11:20+08:00",
              "utc": "2004-01-14T09:11:20Z",
              "ms": 1074071480110.3496
            },
            "end": {
              "local": "2004-01-15T17:12:25+08:00",
              "utc": "2004-01-15T09:12:25Z",
              "ms": 1074157944719.5094
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "2004-01-15",
        "days": -1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 02:13 on Thu 15 Jan.",
          "fact": "2004-01-14T18:12:46Z · 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 17:11, and the day of the 15th ends at 17:12.",
          "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 14th and the 15th.",
          "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 32486 s"
        },
        {
          "step": "counted",
          "text": "Bhogi is kept the day before Pongal: Thursday 15 January is the day taken above.",
          "fact": "follows: pongal − 1 d"
        },
        {
          "step": "ruling",
          "text": "Bhogi, Beijing, 2004: Wednesday 14 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": "2004-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2004-01-14",
          "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": "2004-01-13",
          "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 Beijing, Bhogi 2004 falls on Wednesday 14 January. It is kept the day before Pongal, which falls on Thursday 15 January. The Sun enters Makara at 02:13 on Thu 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from sunrise, as in Orissa, it is 13 January.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pongal",
      "festival": "pongal",
      "name": "Pongal",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32486,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        },
        "end": {
          "local": "2004-02-13T15:11:03+08:00",
          "utc": "2004-02-13T07:11:03Z",
          "ms": 1076656263005.8335
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        },
        "end": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2004-01-14",
          "window": {
            "start": {
              "local": "2004-01-13T17:10:16+08:00",
              "utc": "2004-01-13T09:10:16Z",
              "ms": 1073985016407.2705
            },
            "end": {
              "local": "2004-01-14T17:11:20+08:00",
              "utc": "2004-01-14T09:11:20Z",
              "ms": 1074071480110.3496
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        },
        {
          "local_date": "2004-01-15",
          "window": {
            "start": {
              "local": "2004-01-14T17:11:20+08:00",
              "utc": "2004-01-14T09:11:20Z",
              "ms": 1074071480110.3496
            },
            "end": {
              "local": "2004-01-15T17:12:25+08:00",
              "utc": "2004-01-15T09:12:25Z",
              "ms": 1074157944719.5094
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 02:13 on Thu 15 Jan.",
          "fact": "2004-01-14T18:12:46Z · 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 17:11, and the day of the 15th ends at 17:12.",
          "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 14th and the 15th.",
          "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 32486 s"
        },
        {
          "step": "ruling",
          "text": "Pongal, Beijing, 2004: Thursday 15 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": "2004-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2004-01-15",
          "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": "2004-01-14",
          "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 Beijing, Pongal 2004 falls on Thursday 15 January. The Sun enters Makara at 02:13 on Thu 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from sunrise, as in Orissa, it is 14 January.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/makara-sankranti",
      "festival": "makara-sankranti",
      "name": "Makara Saṅkrānti",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7966,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        },
        "end": {
          "local": "2004-02-13T15:11:03+08:00",
          "utc": "2004-02-13T07:11:03Z",
          "ms": 1076656263005.8335
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        },
        "end": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        }
      },
      "kaala": "civil-day",
      "days": [
        {
          "local_date": "2004-01-14",
          "window": {
            "start": {
              "local": "2004-01-14T00:00:00+08:00",
              "utc": "2004-01-13T16:00:00Z",
              "ms": 1074009600000
            },
            "end": {
              "local": "2004-01-15T00:00:00+08:00",
              "utc": "2004-01-14T16:00:00Z",
              "ms": 1074096000000
            }
          },
          "covered_min": 0,
          "window_min": 1440,
          "qualifies": false
        },
        {
          "local_date": "2004-01-15",
          "window": {
            "start": {
              "local": "2004-01-15T00:00:00+08:00",
              "utc": "2004-01-14T16:00:00Z",
              "ms": 1074096000000
            },
            "end": {
              "local": "2004-01-16T00:00:00+08:00",
              "utc": "2004-01-15T16:00:00Z",
              "ms": 1074182400000
            }
          },
          "covered_min": 1,
          "window_min": 1440,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 02:13 on Thu 15 Jan.",
          "fact": "2004-01-14T18:12:46Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from midnight to midnight, on the clock of Beijing.",
          "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 15th, 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 midnight → only-day · margin 7966 s"
        },
        {
          "step": "ruling",
          "text": "Makara Saṅkrānti, Beijing, 2004: Thursday 15 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": "2004-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "2004-01-14",
          "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."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunset-rule",
          "local_date": "2004-01-15",
          "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 Beijing, Makara Saṅkrānti 2004 falls on Thursday 15 January. The Sun enters Makara at 02:13 on Thu 15 Jan, and the rule counts the day from midnight. Counted from sunrise, as in Orissa, it is 14 January.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/mattu-pongal",
      "festival": "mattu-pongal",
      "name": "Mattu Pongal",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32486,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        },
        "end": {
          "local": "2004-02-13T15:11:03+08:00",
          "utc": "2004-02-13T07:11:03Z",
          "ms": 1076656263005.8335
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        },
        "end": {
          "local": "2004-01-15T02:12:46+08:00",
          "utc": "2004-01-14T18:12:46Z",
          "ms": 1074103966225.0189
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2004-01-14",
          "window": {
            "start": {
              "local": "2004-01-13T17:10:16+08:00",
              "utc": "2004-01-13T09:10:16Z",
              "ms": 1073985016407.2705
            },
            "end": {
              "local": "2004-01-14T17:11:20+08:00",
              "utc": "2004-01-14T09:11:20Z",
              "ms": 1074071480110.3496
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        },
        {
          "local_date": "2004-01-15",
          "window": {
            "start": {
              "local": "2004-01-14T17:11:20+08:00",
              "utc": "2004-01-14T09:11:20Z",
              "ms": 1074071480110.3496
            },
            "end": {
              "local": "2004-01-15T17:12:25+08:00",
              "utc": "2004-01-15T09:12:25Z",
              "ms": 1074157944719.5094
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "2004-01-15",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 02:13 on Thu 15 Jan.",
          "fact": "2004-01-14T18:12:46Z · 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 17:11, and the day of the 15th ends at 17:12.",
          "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 14th and the 15th.",
          "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 32486 s"
        },
        {
          "step": "counted",
          "text": "Mattu Pongal is kept the day after Pongal: Thursday 15 January is the day taken above.",
          "fact": "follows: pongal + 1 d"
        },
        {
          "step": "ruling",
          "text": "Mattu Pongal, Beijing, 2004: Friday 16 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": "2004-01-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-16",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2004-01-16",
          "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": "2004-01-15",
          "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 Beijing, Mattu Pongal 2004 falls on Friday 16 January. It is kept the day after Pongal, which falls on Thursday 15 January. The Sun enters Makara at 02:13 on Thu 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from sunrise, as in Orissa, it is 15 January.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-01-18",
      "festival": "ekadashi",
      "name": "Ṣaṭtilā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34483,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-01-17T19:47:56+08:00",
          "utc": "2004-01-17T11:47:56Z",
          "ms": 1074340075556.4989
        },
        "end": {
          "local": "2004-01-18T17:08:24+08:00",
          "utc": "2004-01-18T09:08:24Z",
          "ms": 1074416904205.611
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-17T19:47:56+08:00",
          "utc": "2004-01-17T11:47:56Z",
          "ms": 1074340075556.4989
        },
        "end": {
          "local": "2004-01-18T17:08:24+08:00",
          "utc": "2004-01-18T09:08:24Z",
          "ms": 1074416904205.611
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-01-17",
          "window": {
            "start": {
              "local": "2004-01-17T07:34:07+08:00",
              "utc": "2004-01-16T23:34:07Z",
              "ms": 1074296047275.5986
            },
            "end": {
              "local": "2004-01-17T07:34:07+08:00",
              "utc": "2004-01-16T23:34:07Z",
              "ms": 1074296047275.5986
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-01-18",
          "window": {
            "start": {
              "local": "2004-01-18T07:33:41+08:00",
              "utc": "2004-01-17T23:33:41Z",
              "ms": 1074382420933.3715
            },
            "end": {
              "local": "2004-01-18T07:33:41+08:00",
              "utc": "2004-01-17T23:33:41Z",
              "ms": 1074382420933.3715
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 19:48 on Sat 17 Jan to 17:08 on Sun 18 Jan.",
          "fact": "2004-01-17T11:47:56Z → 2004-01-18T09:08:24Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:34 on the 17th and 07:34 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 34483 s"
        },
        {
          "step": "ruling",
          "text": "Ṣaṭtilā Ekādaśī, Beijing, 2004: Sunday 18 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": "2004-01-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Ṣaṭtilā Ekādaśī 2004 falls on Sunday 18 January. Ekādaśī runs from 19:48 on Sat 17 Jan to 17:08 on Sun 18 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-01-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-01-19",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11055,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-01-19T14:12:36+08:00",
          "utc": "2004-01-19T06:12:36Z",
          "ms": 1074492756204.6688
        },
        "end": {
          "local": "2004-01-20T11:07:33+08:00",
          "utc": "2004-01-20T03:07:33Z",
          "ms": 1074568053215.8812
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-19T14:12:36+08:00",
          "utc": "2004-01-19T06:12:36Z",
          "ms": 1074492756204.6688
        },
        "end": {
          "local": "2004-01-20T11:07:33+08:00",
          "utc": "2004-01-20T03:07:33Z",
          "ms": 1074568053215.8812
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-01-19",
          "window": {
            "start": {
              "local": "2004-01-19T17:16:51+08:00",
              "utc": "2004-01-19T09:16:51Z",
              "ms": 1074503811156.8153
            },
            "end": {
              "local": "2004-01-19T19:10:58+08:00",
              "utc": "2004-01-19T11:10:58Z",
              "ms": 1074510657937.8627
            }
          },
          "covered_min": 114,
          "window_min": 114,
          "qualifies": true
        },
        {
          "local_date": "2004-01-20",
          "window": {
            "start": {
              "local": "2004-01-20T17:17:59+08:00",
              "utc": "2004-01-20T09:17:59Z",
              "ms": 1074590279490.9319
            },
            "end": {
              "local": "2004-01-20T19:11:53+08:00",
              "utc": "2004-01-20T11:11:53Z",
              "ms": 1074597112822.0088
            }
          },
          "covered_min": 0,
          "window_min": 114,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 14:13 on Mon 19 Jan to 11:08 on Tue 20 Jan.",
          "fact": "2004-01-19T06:12:36Z → 2004-01-20T03:07:33Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:17–19:11 on the 19th, 17:18–19:12 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 114 of 114 minutes on the 19th and 0 of 114 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 11055 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Monday 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": "2004-01-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Monday 19 January. Trayodaśī runs from 14:13 on Mon 19 Jan to 11:08 on Tue 20 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-01-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-01-20",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25962,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-01-20T11:07:33+08:00",
          "utc": "2004-01-20T03:07:33Z",
          "ms": 1074568053215.8812
        },
        "end": {
          "local": "2004-01-21T08:01:47+08:00",
          "utc": "2004-01-21T00:01:47Z",
          "ms": 1074643306551.957
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-20T11:07:33+08:00",
          "utc": "2004-01-20T03:07:33Z",
          "ms": 1074568053215.8812
        },
        "end": {
          "local": "2004-01-21T08:01:47+08:00",
          "utc": "2004-01-21T00:01:47Z",
          "ms": 1074643306551.957
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-01-19",
          "window": {
            "start": {
              "local": "2004-01-20T00:00:47+08:00",
              "utc": "2004-01-19T16:00:47Z",
              "ms": 1074528046585.7427
            },
            "end": {
              "local": "2004-01-20T00:48:47+08:00",
              "utc": "2004-01-19T16:48:47Z",
              "ms": 1074530926585.7427
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-01-20",
          "window": {
            "start": {
              "local": "2004-01-21T00:01:04+08:00",
              "utc": "2004-01-20T16:01:04Z",
              "ms": 1074614464482.4705
            },
            "end": {
              "local": "2004-01-21T00:49:04+08:00",
              "utc": "2004-01-20T16:49:04Z",
              "ms": 1074617344482.4705
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 11:08 on Tue 20 Jan to 08:02 on Wed 21 Jan.",
          "fact": "2004-01-20T03:07:33Z → 2004-01-21T00:01:47Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:01–00:49 on the 19th, 00:01–00:49 on the 20th.",
          "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 19th and 48 of 48 on the 20th.",
          "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 25962 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Tuesday 20 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": "2004-01-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Tuesday 20 January. Caturdaśī runs from 11:08 on Tue 20 Jan to 08:02 on Wed 21 Jan and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-01-20",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/yama-tarpana",
      "festival": "yama-tarpana",
      "name": "Yama Tarpaṇa",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1777,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-01-20T11:07:33+08:00",
          "utc": "2004-01-20T03:07:33Z",
          "ms": 1074568053215.8812
        },
        "end": {
          "local": "2004-01-21T08:01:47+08:00",
          "utc": "2004-01-21T00:01:47Z",
          "ms": 1074643306551.957
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-20T11:07:33+08:00",
          "utc": "2004-01-20T03:07:33Z",
          "ms": 1074568053215.8812
        },
        "end": {
          "local": "2004-01-21T08:01:47+08:00",
          "utc": "2004-01-21T00:01:47Z",
          "ms": 1074643306551.957
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2004-01-20",
          "window": {
            "start": {
              "local": "2004-01-20T05:38:35+08:00",
              "utc": "2004-01-19T21:38:35Z",
              "ms": 1074548315233.6228
            },
            "end": {
              "local": "2004-01-20T07:32:42+08:00",
              "utc": "2004-01-19T23:32:42Z",
              "ms": 1074555162014.6702
            }
          },
          "covered_min": 0,
          "window_min": 114,
          "qualifies": false
        },
        {
          "local_date": "2004-01-21",
          "window": {
            "start": {
              "local": "2004-01-21T05:38:16+08:00",
              "utc": "2004-01-20T21:38:16Z",
              "ms": 1074634696142.932
            },
            "end": {
              "local": "2004-01-21T07:32:09+08:00",
              "utc": "2004-01-20T23:32:09Z",
              "ms": 1074641529474.0089
            }
          },
          "covered_min": 114,
          "window_min": 114,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 11:08 on Tue 20 Jan to 08:02 on Wed 21 Jan.",
          "fact": "2004-01-20T03:07:33Z → 2004-01-21T00:01:47Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:39–07:33 on the 20th, 05:38–07:32 on the 21st.",
          "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 0 of 114 minutes on the 20th and 114 of 114 on the 21st.",
          "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 1777 s"
        },
        {
          "step": "ruling",
          "text": "Yama Tarpaṇa, Beijing, 2004: Wednesday 21 January.",
          "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": "2004-01-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Yama Tarpaṇa 2004 falls on Wednesday 21 January. Caturdaśī runs from 11:08 on Tue 20 Jan to 08:02 on Wed 21 Jan and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ganesha-jayanti",
      "festival": "ganesha-jayanti",
      "name": "Gaṇeśa Jayantī",
      "everyday": "Maghi Ganesh Jayanti",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33332,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-01-24T22:49:21+08:00",
          "utc": "2004-01-24T14:49:21Z",
          "ms": 1074955761050.9529
        },
        "end": {
          "local": "2004-01-25T22:06:16+08:00",
          "utc": "2004-01-25T14:06:16Z",
          "ms": 1075039575860.7996
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-24T22:49:21+08:00",
          "utc": "2004-01-24T14:49:21Z",
          "ms": 1074955761050.9529
        },
        "end": {
          "local": "2004-01-25T22:06:16+08:00",
          "utc": "2004-01-25T14:06:16Z",
          "ms": 1075039575860.7996
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-01-24",
          "window": {
            "start": {
              "local": "2004-01-24T12:02:29+08:00",
              "utc": "2004-01-24T04:02:29Z",
              "ms": 1074916948900.6614
            },
            "end": {
              "local": "2004-01-24T12:50:29+08:00",
              "utc": "2004-01-24T04:50:29Z",
              "ms": 1074919828900.6614
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-01-25",
          "window": {
            "start": {
              "local": "2004-01-25T12:02:44+08:00",
              "utc": "2004-01-25T04:02:44Z",
              "ms": 1075003363971.9495
            },
            "end": {
              "local": "2004-01-25T12:50:44+08:00",
              "utc": "2004-01-25T04:50:44Z",
              "ms": 1075006243971.9495
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 22:49 on Sat 24 Jan to 22:06 on Sun 25 Jan.",
          "fact": "2004-01-24T14:49:21Z → 2004-01-25T14:06:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 24th, 12:03–12:51 on the 25th.",
          "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 24th and 48 of 48 on the 25th.",
          "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 33332 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Jayantī, Beijing, 2004: Sunday 25 January.",
          "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": "2004-01-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2004 falls on Sunday 25 January. Caturthī runs from 22:49 on Sat 24 Jan to 22:06 on Sun 25 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/tila-chaturthi",
      "festival": "tila-chaturthi",
      "name": "Tila Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10186,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-01-24T22:49:21+08:00",
          "utc": "2004-01-24T14:49:21Z",
          "ms": 1074955761050.9529
        },
        "end": {
          "local": "2004-01-25T22:06:16+08:00",
          "utc": "2004-01-25T14:06:16Z",
          "ms": 1075039575860.7996
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-24T22:49:21+08:00",
          "utc": "2004-01-24T14:49:21Z",
          "ms": 1074955761050.9529
        },
        "end": {
          "local": "2004-01-25T22:06:16+08:00",
          "utc": "2004-01-25T14:06:16Z",
          "ms": 1075039575860.7996
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-01-24",
          "window": {
            "start": {
              "local": "2004-01-24T17:22:38+08:00",
              "utc": "2004-01-24T09:22:38Z",
              "ms": 1074936158047.9551
            },
            "end": {
              "local": "2004-01-24T19:15:34+08:00",
              "utc": "2004-01-24T11:15:34Z",
              "ms": 1074942934203.8605
            }
          },
          "covered_min": 0,
          "window_min": 113,
          "qualifies": false
        },
        {
          "local_date": "2004-01-25",
          "window": {
            "start": {
              "local": "2004-01-25T17:23:49+08:00",
              "utc": "2004-01-25T09:23:49Z",
              "ms": 1075022628726.6536
            },
            "end": {
              "local": "2004-01-25T19:16:30+08:00",
              "utc": "2004-01-25T11:16:30Z",
              "ms": 1075029389795.0917
            }
          },
          "covered_min": 113,
          "window_min": 113,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 22:49 on Sat 24 Jan to 22:06 on Sun 25 Jan.",
          "fact": "2004-01-24T14:49:21Z → 2004-01-25T14:06:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:23–19:16 on the 24th, 17:24–19:16 on the 25th.",
          "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 113 minutes on the 24th and 113 of 113 on the 25th.",
          "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 10186 s"
        },
        {
          "step": "ruling",
          "text": "Tila Caturthī, Beijing, 2004: Sunday 25 January.",
          "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": "2004-01-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Tila Caturthī 2004 falls on Sunday 25 January. Caturthī runs from 22:49 on Sat 24 Jan to 22:06 on Sun 25 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/shri-panchami",
      "festival": "shri-panchami",
      "name": "Śrī Pañcamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33332,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2004-01-25T22:06:16+08:00",
          "utc": "2004-01-25T14:06:16Z",
          "ms": 1075039575860.7996
        },
        "end": {
          "local": "2004-01-26T22:14:02+08:00",
          "utc": "2004-01-26T14:14:02Z",
          "ms": 1075126442227.3116
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-25T22:06:16+08:00",
          "utc": "2004-01-25T14:06:16Z",
          "ms": 1075039575860.7996
        },
        "end": {
          "local": "2004-01-26T22:14:02+08:00",
          "utc": "2004-01-26T14:14:02Z",
          "ms": 1075126442227.3116
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-01-25",
          "window": {
            "start": {
              "local": "2004-01-25T12:02:44+08:00",
              "utc": "2004-01-25T04:02:44Z",
              "ms": 1075003363971.9495
            },
            "end": {
              "local": "2004-01-25T12:50:44+08:00",
              "utc": "2004-01-25T04:50:44Z",
              "ms": 1075006243971.9495
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-01-26",
          "window": {
            "start": {
              "local": "2004-01-26T12:02:58+08:00",
              "utc": "2004-01-26T04:02:58Z",
              "ms": 1075089778231.175
            },
            "end": {
              "local": "2004-01-26T12:50:58+08:00",
              "utc": "2004-01-26T04:50:58Z",
              "ms": 1075092658231.175
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 22:06 on Sun 25 Jan to 22:14 on Mon 26 Jan.",
          "fact": "2004-01-25T14:06:16Z → 2004-01-26T14:14:02Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 25th, 12:03–12:51 on the 26th.",
          "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 25th and 48 of 48 on the 26th.",
          "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 33332 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Pañcamī, Beijing, 2004: Monday 26 January.",
          "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": "2004-01-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śrī Pañcamī 2004 falls on Monday 26 January. Pañcamī runs from 22:06 on Sun 25 Jan to 22:14 on Mon 26 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vasanta-panchami",
      "festival": "vasanta-panchami",
      "name": "Vasanta Pañcamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33332,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2004-01-25T22:06:16+08:00",
          "utc": "2004-01-25T14:06:16Z",
          "ms": 1075039575860.7996
        },
        "end": {
          "local": "2004-01-26T22:14:02+08:00",
          "utc": "2004-01-26T14:14:02Z",
          "ms": 1075126442227.3116
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-25T22:06:16+08:00",
          "utc": "2004-01-25T14:06:16Z",
          "ms": 1075039575860.7996
        },
        "end": {
          "local": "2004-01-26T22:14:02+08:00",
          "utc": "2004-01-26T14:14:02Z",
          "ms": 1075126442227.3116
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-01-25",
          "window": {
            "start": {
              "local": "2004-01-25T12:02:44+08:00",
              "utc": "2004-01-25T04:02:44Z",
              "ms": 1075003363971.9495
            },
            "end": {
              "local": "2004-01-25T12:50:44+08:00",
              "utc": "2004-01-25T04:50:44Z",
              "ms": 1075006243971.9495
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-01-26",
          "window": {
            "start": {
              "local": "2004-01-26T12:02:58+08:00",
              "utc": "2004-01-26T04:02:58Z",
              "ms": 1075089778231.175
            },
            "end": {
              "local": "2004-01-26T12:50:58+08:00",
              "utc": "2004-01-26T04:50:58Z",
              "ms": 1075092658231.175
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 22:06 on Sun 25 Jan to 22:14 on Mon 26 Jan.",
          "fact": "2004-01-25T14:06:16Z → 2004-01-26T14:14:02Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 25th, 12:03–12:51 on the 26th.",
          "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 25th and 48 of 48 on the 26th.",
          "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 33332 s"
        },
        {
          "step": "ruling",
          "text": "Vasanta Pañcamī, Beijing, 2004: Monday 26 January.",
          "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": "2004-01-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vasanta Pañcamī 2004 falls on Monday 26 January. Pañcamī runs from 22:06 on Sun 25 Jan to 22:14 on Mon 26 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ratha-saptami",
      "festival": "ratha-saptami",
      "name": "Ratha Saptamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-01-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16660,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2004-01-27T23:12:43+08:00",
          "utc": "2004-01-27T15:12:43Z",
          "ms": 1075216363169.8628
        },
        "end": {
          "local": "2004-01-29T00:57:03+08:00",
          "utc": "2004-01-28T16:57:03Z",
          "ms": 1075309023452.2399
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-01-27T23:12:43+08:00",
          "utc": "2004-01-27T15:12:43Z",
          "ms": 1075216363169.8628
        },
        "end": {
          "local": "2004-01-29T00:57:03+08:00",
          "utc": "2004-01-28T16:57:03Z",
          "ms": 1075309023452.2399
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2004-01-28",
          "window": {
            "start": {
              "local": "2004-01-28T05:35:16+08:00",
              "utc": "2004-01-27T21:35:16Z",
              "ms": 1075239316061.8948
            },
            "end": {
              "local": "2004-01-28T07:27:26+08:00",
              "utc": "2004-01-27T23:27:26Z",
              "ms": 1075246046072.9757
            }
          },
          "covered_min": 112,
          "window_min": 112,
          "qualifies": true
        },
        {
          "local_date": "2004-01-29",
          "window": {
            "start": {
              "local": "2004-01-29T05:34:44+08:00",
              "utc": "2004-01-28T21:34:44Z",
              "ms": 1075325683882.4023
            },
            "end": {
              "local": "2004-01-29T07:26:38+08:00",
              "utc": "2004-01-28T23:26:38Z",
              "ms": 1075332397943.4037
            }
          },
          "covered_min": 0,
          "window_min": 112,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 23:13 on Tue 27 Jan to 00:57 on Thu 29 Jan.",
          "fact": "2004-01-27T15:12:43Z → 2004-01-28T16:57:03Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:35–07:27 on the 28th, 05:35–07:27 on the 29th.",
          "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 112 of 112 minutes on the 28th and 0 of 112 on the 29th.",
          "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 16660 s"
        },
        {
          "step": "ruling",
          "text": "Ratha Saptamī, Beijing, 2004: Wednesday 28 January.",
          "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": "2004-01-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-01-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Ratha Saptamī 2004 falls on Wednesday 28 January. Saptamī runs from 23:13 on Tue 27 Jan to 00:57 on Thu 29 Jan and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-02-02",
      "festival": "ekadashi",
      "name": "Jayā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4586,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-02-01T08:40:29+08:00",
          "utc": "2004-02-01T00:40:29Z",
          "ms": 1075596028637.2307
        },
        "end": {
          "local": "2004-02-02T11:13:35+08:00",
          "utc": "2004-02-02T03:13:35Z",
          "ms": 1075691615013.4908
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-01T08:40:29+08:00",
          "utc": "2004-02-01T00:40:29Z",
          "ms": 1075596028637.2307
        },
        "end": {
          "local": "2004-02-02T11:13:35+08:00",
          "utc": "2004-02-02T03:13:35Z",
          "ms": 1075691615013.4908
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-02-01",
          "window": {
            "start": {
              "local": "2004-02-01T07:24:03+08:00",
              "utc": "2004-01-31T23:24:03Z",
              "ms": 1075591442758.8947
            },
            "end": {
              "local": "2004-02-01T07:24:03+08:00",
              "utc": "2004-01-31T23:24:03Z",
              "ms": 1075591442758.8947
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-02-02",
          "window": {
            "start": {
              "local": "2004-02-02T07:23:08+08:00",
              "utc": "2004-02-01T23:23:08Z",
              "ms": 1075677787545.8177
            },
            "end": {
              "local": "2004-02-02T07:23:08+08:00",
              "utc": "2004-02-01T23:23:08Z",
              "ms": 1075677787545.8177
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:40 on Sun 1 Feb to 11:14 on Mon 2 Feb.",
          "fact": "2004-02-01T00:40:29Z → 2004-02-02T03:13:35Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:24 on the 1st and 07:23 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 4586 s"
        },
        {
          "step": "ruling",
          "text": "Jayā Ekādaśī, Beijing, 2004: Monday 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": "2004-02-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Jayā Ekādaśī 2004 falls on Monday 2 February. Ekādaśī runs from 08:40 on Sun 1 Feb to 11:14 on Mon 2 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-02-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/bhishma-dvadashi",
      "festival": "bhishma-dvadashi",
      "name": "Bhīṣma Dvādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1893,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2004-02-02T11:13:35+08:00",
          "utc": "2004-02-02T03:13:35Z",
          "ms": 1075691615013.4908
        },
        "end": {
          "local": "2004-02-03T13:23:56+08:00",
          "utc": "2004-02-03T05:23:56Z",
          "ms": 1075785835846.5728
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-02T11:13:35+08:00",
          "utc": "2004-02-02T03:13:35Z",
          "ms": 1075691615013.4908
        },
        "end": {
          "local": "2004-02-03T13:23:56+08:00",
          "utc": "2004-02-03T05:23:56Z",
          "ms": 1075785835846.5728
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-02-02",
          "window": {
            "start": {
              "local": "2004-02-02T12:04:15+08:00",
              "utc": "2004-02-02T04:04:15Z",
              "ms": 1075694654790.3119
            },
            "end": {
              "local": "2004-02-02T12:52:15+08:00",
              "utc": "2004-02-02T04:52:15Z",
              "ms": 1075697534790.3119
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-02-03",
          "window": {
            "start": {
              "local": "2004-02-03T12:04:22+08:00",
              "utc": "2004-02-03T04:04:22Z",
              "ms": 1075781062382.5535
            },
            "end": {
              "local": "2004-02-03T12:52:22+08:00",
              "utc": "2004-02-03T04:52:22Z",
              "ms": 1075783942382.5535
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 11:14 on Mon 2 Feb to 13:24 on Tue 3 Feb.",
          "fact": "2004-02-02T03:13:35Z → 2004-02-03T05:23:56Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 2nd, 12:04–12:52 on the 3rd.",
          "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 2nd and 48 of 48 on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 1893 s"
        },
        {
          "step": "ruling",
          "text": "Bhīṣma Dvādaśī, Beijing, 2004: Monday 2 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": "2004-02-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Bhīṣma Dvādaśī 2004 falls on Monday 2 February. Dvādaśī runs from 11:14 on Mon 2 Feb to 13:24 on Tue 3 Feb 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/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-02-03",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9092,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-02-03T13:23:56+08:00",
          "utc": "2004-02-03T05:23:56Z",
          "ms": 1075785835846.5728
        },
        "end": {
          "local": "2004-02-04T15:04:15+08:00",
          "utc": "2004-02-04T07:04:15Z",
          "ms": 1075878254635.0853
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-03T13:23:56+08:00",
          "utc": "2004-02-03T05:23:56Z",
          "ms": 1075785835846.5728
        },
        "end": {
          "local": "2004-02-04T15:04:15+08:00",
          "utc": "2004-02-04T07:04:15Z",
          "ms": 1075878254635.0853
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-02-03",
          "window": {
            "start": {
              "local": "2004-02-03T17:34:34+08:00",
              "utc": "2004-02-03T09:34:34Z",
              "ms": 1075800874115.9918
            },
            "end": {
              "local": "2004-02-03T19:24:47+08:00",
              "utc": "2004-02-03T11:24:47Z",
              "ms": 1075807487181.1892
            }
          },
          "covered_min": 110,
          "window_min": 110,
          "qualifies": true
        },
        {
          "local_date": "2004-02-04",
          "window": {
            "start": {
              "local": "2004-02-04T17:35:46+08:00",
              "utc": "2004-02-04T09:35:46Z",
              "ms": 1075887346183.6294
            },
            "end": {
              "local": "2004-02-04T19:25:42+08:00",
              "utc": "2004-02-04T11:25:42Z",
              "ms": 1075893941619.1482
            }
          },
          "covered_min": 0,
          "window_min": 110,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 13:24 on Tue 3 Feb to 15:04 on Wed 4 Feb.",
          "fact": "2004-02-03T05:23:56Z → 2004-02-04T07:04:15Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:35–19:25 on the 3rd, 17:36–19:26 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 110 of 110 minutes on the 3rd and 0 of 110 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 9092 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Tuesday 3 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": "2004-02-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Tuesday 3 February. Trayodaśī runs from 13:24 on Tue 3 Feb to 15:04 on Wed 4 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-02-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/maghi-purnima",
      "festival": "maghi-purnima",
      "name": "Māghī Pūrṇimā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11945,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-02-05T16:11:40+08:00",
          "utc": "2004-02-05T08:11:40Z",
          "ms": 1075968700453.3477
        },
        "end": {
          "local": "2004-02-06T16:46:54+08:00",
          "utc": "2004-02-06T08:46:54Z",
          "ms": 1076057214278.3915
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-05T16:11:40+08:00",
          "utc": "2004-02-05T08:11:40Z",
          "ms": 1075968700453.3477
        },
        "end": {
          "local": "2004-02-06T16:46:54+08:00",
          "utc": "2004-02-06T08:46:54Z",
          "ms": 1076057214278.3915
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-02-05",
          "window": {
            "start": {
              "local": "2004-02-05T12:04:35+08:00",
              "utc": "2004-02-05T04:04:35Z",
              "ms": 1075953875080.9729
            },
            "end": {
              "local": "2004-02-05T12:52:35+08:00",
              "utc": "2004-02-05T04:52:35Z",
              "ms": 1075956755080.9729
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-02-06",
          "window": {
            "start": {
              "local": "2004-02-06T12:04:40+08:00",
              "utc": "2004-02-06T04:04:40Z",
              "ms": 1076040280199.3071
            },
            "end": {
              "local": "2004-02-06T12:52:40+08:00",
              "utc": "2004-02-06T04:52:40Z",
              "ms": 1076043160199.3071
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 16:12 on Thu 5 Feb to 16:47 on Fri 6 Feb.",
          "fact": "2004-02-05T08:11:40Z → 2004-02-06T08:46:54Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 5th, 12:05–12:53 on the 6th.",
          "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 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 midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 11945 s"
        },
        {
          "step": "ruling",
          "text": "Māghī Pūrṇimā, Beijing, 2004: Friday 6 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": "2004-02-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Māghī Pūrṇimā 2004 falls on Friday 6 February. Pūrṇimā runs from 16:12 on Thu 5 Feb to 16:47 on Fri 6 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-02-09",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17719,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-02-09T15:53:27+08:00",
          "utc": "2004-02-09T07:53:27Z",
          "ms": 1076313206628.5939
        },
        "end": {
          "local": "2004-02-10T14:55:29+08:00",
          "utc": "2004-02-10T06:55:29Z",
          "ms": 1076396129259.8276
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-09T15:53:27+08:00",
          "utc": "2004-02-09T07:53:27Z",
          "ms": 1076313206628.5939
        },
        "end": {
          "local": "2004-02-10T14:55:29+08:00",
          "utc": "2004-02-10T06:55:29Z",
          "ms": 1076396129259.8276
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-02-09",
          "window": {
            "start": {
              "local": "2004-02-09T20:48:46+08:00",
              "utc": "2004-02-09T12:48:46Z",
              "ms": 1076330925874.7953
            },
            "end": {
              "local": "2004-02-09T20:48:46+08:00",
              "utc": "2004-02-09T12:48:46Z",
              "ms": 1076330925874.7953
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-02-10",
          "window": {
            "start": {
              "local": "2004-02-10T21:56:59+08:00",
              "utc": "2004-02-10T13:56:59Z",
              "ms": 1076421418818.5591
            },
            "end": {
              "local": "2004-02-10T21:56:59+08:00",
              "utc": "2004-02-10T13:56:59Z",
              "ms": 1076421418818.5591
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:53 on Mon 9 Feb to 14:55 on Tue 10 Feb.",
          "fact": "2004-02-09T07:53:27Z → 2004-02-10T06:55:29Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:49 on the 9th and 21:57 on the 10th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 9th and is not on the 10th.",
          "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 17719 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Monday 9 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": "2004-02-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Monday 9 February. Caturthī runs from 15:53 on Mon 9 Feb to 14:55 on Tue 10 Feb and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-02-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-02-16",
      "festival": "ekadashi",
      "name": "Vijayā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10035,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-02-16T04:20:19+08:00",
          "utc": "2004-02-15T20:20:19Z",
          "ms": 1076876418989.224
        },
        "end": {
          "local": "2004-02-17T01:57:51+08:00",
          "utc": "2004-02-16T17:57:51Z",
          "ms": 1076954270608.5264
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-16T04:20:19+08:00",
          "utc": "2004-02-15T20:20:19Z",
          "ms": 1076876418989.224
        },
        "end": {
          "local": "2004-02-17T01:57:51+08:00",
          "utc": "2004-02-16T17:57:51Z",
          "ms": 1076954270608.5264
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-02-16",
          "window": {
            "start": {
              "local": "2004-02-16T07:07:34+08:00",
              "utc": "2004-02-15T23:07:34Z",
              "ms": 1076886454487.1289
            },
            "end": {
              "local": "2004-02-16T07:07:34+08:00",
              "utc": "2004-02-15T23:07:34Z",
              "ms": 1076886454487.1289
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-02-17",
          "window": {
            "start": {
              "local": "2004-02-17T07:06:18+08:00",
              "utc": "2004-02-16T23:06:18Z",
              "ms": 1076972777863.1565
            },
            "end": {
              "local": "2004-02-17T07:06:18+08:00",
              "utc": "2004-02-16T23:06:18Z",
              "ms": 1076972777863.1565
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 04:20 on Mon 16 Feb to 01:58 on Tue 17 Feb.",
          "fact": "2004-02-15T20:20:19Z → 2004-02-16T17:57:51Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:08 on the 16th and 07:06 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 10035 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Ekādaśī, Beijing, 2004: Monday 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": "2004-02-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vijayā Ekādaśī 2004 falls on Monday 16 February. Ekādaśī runs from 04:20 on Mon 16 Feb to 01:58 on Tue 17 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-02-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/maha-shivaratri",
      "festival": "maha-shivaratri",
      "name": "Mahāśivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10243,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-02-18T21:13:19+08:00",
          "utc": "2004-02-18T13:13:19Z",
          "ms": 1077109999273.4551
        },
        "end": {
          "local": "2004-02-19T19:05:18+08:00",
          "utc": "2004-02-19T11:05:18Z",
          "ms": 1077188718210.9868
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-18T21:13:19+08:00",
          "utc": "2004-02-18T13:13:19Z",
          "ms": 1077109999273.4551
        },
        "end": {
          "local": "2004-02-19T19:05:18+08:00",
          "utc": "2004-02-19T11:05:18Z",
          "ms": 1077188718210.9868
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-02-18",
          "window": {
            "start": {
              "local": "2004-02-19T00:04:02+08:00",
              "utc": "2004-02-18T16:04:02Z",
              "ms": 1077120241888.7007
            },
            "end": {
              "local": "2004-02-19T00:52:02+08:00",
              "utc": "2004-02-18T16:52:02Z",
              "ms": 1077123121888.7007
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-02-19",
          "window": {
            "start": {
              "local": "2004-02-20T00:03:57+08:00",
              "utc": "2004-02-19T16:03:57Z",
              "ms": 1077206636730.0042
            },
            "end": {
              "local": "2004-02-20T00:51:57+08:00",
              "utc": "2004-02-19T16:51:57Z",
              "ms": 1077209516730.0042
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 21:13 on Wed 18 Feb to 19:05 on Thu 19 Feb.",
          "fact": "2004-02-18T13:13:19Z → 2004-02-19T11:05:18Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:04–00:52 on the 18th, 00:04–00:52 on the 19th.",
          "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 18th and 0 of 48 on the 19th.",
          "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 10243 s"
        },
        {
          "step": "ruling",
          "text": "Mahāśivarātri, Beijing, 2004: Wednesday 18 February.",
          "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": "2004-02-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Mahāśivarātri 2004 falls on Wednesday 18 February. Caturdaśī runs from 21:13 on Wed 18 Feb to 19:05 on Thu 19 Feb and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-02-18",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5726,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-02-17T23:33:23+08:00",
          "utc": "2004-02-17T15:33:23Z",
          "ms": 1077032002589.9095
        },
        "end": {
          "local": "2004-02-18T21:13:19+08:00",
          "utc": "2004-02-18T13:13:19Z",
          "ms": 1077109999273.4551
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-17T23:33:23+08:00",
          "utc": "2004-02-17T15:33:23Z",
          "ms": 1077032002589.9095
        },
        "end": {
          "local": "2004-02-18T21:13:19+08:00",
          "utc": "2004-02-18T13:13:19Z",
          "ms": 1077109999273.4551
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-02-17",
          "window": {
            "start": {
              "local": "2004-02-17T17:51:13+08:00",
              "utc": "2004-02-17T09:51:13Z",
              "ms": 1077011472650.8646
            },
            "end": {
              "local": "2004-02-17T19:37:03+08:00",
              "utc": "2004-02-17T11:37:03Z",
              "ms": 1077017822976.7955
            }
          },
          "covered_min": 0,
          "window_min": 106,
          "qualifies": false
        },
        {
          "local_date": "2004-02-18",
          "window": {
            "start": {
              "local": "2004-02-18T17:52:23+08:00",
              "utc": "2004-02-18T09:52:23Z",
              "ms": 1077097942561.5342
            },
            "end": {
              "local": "2004-02-18T19:37:53+08:00",
              "utc": "2004-02-18T11:37:53Z",
              "ms": 1077104273048.7786
            }
          },
          "covered_min": 106,
          "window_min": 106,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 23:33 on Tue 17 Feb to 21:13 on Wed 18 Feb.",
          "fact": "2004-02-17T15:33:23Z → 2004-02-18T13:13:19Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:51–19:37 on the 17th, 17:52–19:38 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 0 of 106 minutes on the 17th and 106 of 106 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 5726 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Wednesday 18 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": "2004-02-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Wednesday 18 February. Trayodaśī runs from 23:33 on Tue 17 Feb to 21:13 on Wed 18 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-02-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-02-24",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-02-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8671,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-02-23T15:16:43+08:00",
          "utc": "2004-02-23T07:16:43Z",
          "ms": 1077520602808.07
        },
        "end": {
          "local": "2004-02-24T16:01:43+08:00",
          "utc": "2004-02-24T08:01:43Z",
          "ms": 1077609702540.4286
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-02-23T15:16:43+08:00",
          "utc": "2004-02-23T07:16:43Z",
          "ms": 1077520602808.07
        },
        "end": {
          "local": "2004-02-24T16:01:43+08:00",
          "utc": "2004-02-24T08:01:43Z",
          "ms": 1077609702540.4286
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-02-23",
          "window": {
            "start": {
              "local": "2004-02-23T12:04:12+08:00",
              "utc": "2004-02-23T04:04:12Z",
              "ms": 1077509051524.6982
            },
            "end": {
              "local": "2004-02-23T12:52:12+08:00",
              "utc": "2004-02-23T04:52:12Z",
              "ms": 1077511931524.6982
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-02-24",
          "window": {
            "start": {
              "local": "2004-02-24T12:04:04+08:00",
              "utc": "2004-02-24T04:04:04Z",
              "ms": 1077595443606.2128
            },
            "end": {
              "local": "2004-02-24T12:52:04+08:00",
              "utc": "2004-02-24T04:52:04Z",
              "ms": 1077598323606.2128
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:17 on Mon 23 Feb to 16:02 on Tue 24 Feb.",
          "fact": "2004-02-23T07:16:43Z → 2004-02-24T08:01:43Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 23rd, 12:04–12:52 on the 24th.",
          "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 23rd and 48 of 48 on the 24th.",
          "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 8671 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Tuesday 24 February.",
          "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": "2004-02-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-02-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Tuesday 24 February. Caturthī runs from 15:17 on Mon 23 Feb to 16:02 on Tue 24 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-02-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-03-03",
      "festival": "ekadashi",
      "name": "Āmalakī Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1209,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-03-02T05:27:05+08:00",
          "utc": "2004-03-01T21:27:05Z",
          "ms": 1078176425110.4895
        },
        "end": {
          "local": "2004-03-03T07:05:18+08:00",
          "utc": "2004-03-02T23:05:18Z",
          "ms": 1078268718343.3646
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-02T05:27:05+08:00",
          "utc": "2004-03-01T21:27:05Z",
          "ms": 1078176425110.4895
        },
        "end": {
          "local": "2004-03-03T07:05:18+08:00",
          "utc": "2004-03-02T23:05:18Z",
          "ms": 1078268718343.3646
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-03-02",
          "window": {
            "start": {
              "local": "2004-03-02T06:46:40+08:00",
              "utc": "2004-03-01T22:46:40Z",
              "ms": 1078181199625.5665
            },
            "end": {
              "local": "2004-03-02T06:46:40+08:00",
              "utc": "2004-03-01T22:46:40Z",
              "ms": 1078181199625.5665
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-03-03",
          "window": {
            "start": {
              "local": "2004-03-03T06:45:09+08:00",
              "utc": "2004-03-02T22:45:09Z",
              "ms": 1078267509250.6644
            },
            "end": {
              "local": "2004-03-03T06:45:09+08:00",
              "utc": "2004-03-02T22:45:09Z",
              "ms": 1078267509250.6644
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 05:27 on Tue 2 Mar to 07:05 on Wed 3 Mar.",
          "fact": "2004-03-01T21:27:05Z → 2004-03-02T23:05:18Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:47 on the 2nd and 06:45 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 on the 3rd.",
          "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 1209 s"
        },
        {
          "step": "ruling",
          "text": "Āmalakī Ekādaśī, Beijing, 2004: Wednesday 3 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": "2004-03-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Āmalakī Ekādaśī 2004 falls on Wednesday 3 March. Ekādaśī runs from 05:27 on Tue 2 Mar to 07:05 on Wed 3 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-03-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-03-04",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35169,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-03-04T08:04:49+08:00",
          "utc": "2004-03-04T00:04:49Z",
          "ms": 1078358688650.2623
        },
        "end": {
          "local": "2004-03-05T08:24:10+08:00",
          "utc": "2004-03-05T00:24:10Z",
          "ms": 1078446250188.4441
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-04T08:04:49+08:00",
          "utc": "2004-03-04T00:04:49Z",
          "ms": 1078358688650.2623
        },
        "end": {
          "local": "2004-03-05T08:24:10+08:00",
          "utc": "2004-03-05T00:24:10Z",
          "ms": 1078446250188.4441
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-03-04",
          "window": {
            "start": {
              "local": "2004-03-04T18:09:14+08:00",
              "utc": "2004-03-04T10:09:14Z",
              "ms": 1078394954383.4406
            },
            "end": {
              "local": "2004-03-04T19:49:37+08:00",
              "utc": "2004-03-04T11:49:37Z",
              "ms": 1078400977344.8517
            }
          },
          "covered_min": 100,
          "window_min": 100,
          "qualifies": true
        },
        {
          "local_date": "2004-03-05",
          "window": {
            "start": {
              "local": "2004-03-05T18:10:19+08:00",
              "utc": "2004-03-05T10:10:19Z",
              "ms": 1078481419285.4279
            },
            "end": {
              "local": "2004-03-05T19:50:21+08:00",
              "utc": "2004-03-05T11:50:21Z",
              "ms": 1078487421298.1718
            }
          },
          "covered_min": 0,
          "window_min": 100,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:05 on Thu 4 Mar to 08:24 on Fri 5 Mar.",
          "fact": "2004-03-04T00:04:49Z → 2004-03-05T00:24:10Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–19:50 on the 4th, 18:10–19:50 on the 5th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 100 of 100 minutes on the 4th and 0 of 100 on the 5th.",
          "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 35169 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Thursday 4 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": "2004-03-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Thursday 4 March. Trayodaśī runs from 08:05 on Thu 4 Mar to 08:24 on Fri 5 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-03-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/holika-dahana",
      "festival": "holika-dahana",
      "name": "Holikā Dahana",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28051,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-03-06T08:05:43+08:00",
          "utc": "2004-03-06T00:05:43Z",
          "ms": 1078531542537.389
        },
        "end": {
          "local": "2004-03-07T07:14:16+08:00",
          "utc": "2004-03-06T23:14:16Z",
          "ms": 1078614856451.0642
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-06T08:05:43+08:00",
          "utc": "2004-03-06T00:05:43Z",
          "ms": 1078531542537.389
        },
        "end": {
          "local": "2004-03-07T07:14:16+08:00",
          "utc": "2004-03-06T23:14:16Z",
          "ms": 1078614856451.0642
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2004-03-06",
          "window": {
            "start": {
              "local": "2004-03-06T15:53:14+08:00",
              "utc": "2004-03-06T07:53:14Z",
              "ms": 1078559593992.7294
            },
            "end": {
              "local": "2004-03-06T18:11:24+08:00",
              "utc": "2004-03-06T10:11:24Z",
              "ms": 1078567883895.6599
            }
          },
          "covered_min": 138,
          "window_min": 138,
          "qualifies": true
        },
        {
          "local_date": "2004-03-07",
          "window": {
            "start": {
              "local": "2004-03-07T15:53:47+08:00",
              "utc": "2004-03-07T07:53:47Z",
              "ms": 1078646026905.5063
            },
            "end": {
              "local": "2004-03-07T18:12:28+08:00",
              "utc": "2004-03-07T10:12:28Z",
              "ms": 1078654348225.9314
            }
          },
          "covered_min": 0,
          "window_min": 139,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 08:06 on Sat 6 Mar to 07:14 on Sun 7 Mar.",
          "fact": "2004-03-06T00:05:43Z → 2004-03-06T23:14:16Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:53–18:11 on the 6th, 15:54–18:12 on the 7th.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 138 of 138 minutes on the 6th and 0 of 139 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one late afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28051 s"
        },
        {
          "step": "ruling",
          "text": "Holikā Dahana, Beijing, 2004: Saturday 6 March.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "2004-03-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Holikā Dahana 2004 falls on Saturday 6 March. Pūrṇimā runs from 08:06 on Sat 6 Mar to 07:14 on Sun 7 Mar and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/holi",
      "festival": "holi",
      "name": "Holī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28051,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-03-06T08:05:43+08:00",
          "utc": "2004-03-06T00:05:43Z",
          "ms": 1078531542537.389
        },
        "end": {
          "local": "2004-03-07T07:14:16+08:00",
          "utc": "2004-03-06T23:14:16Z",
          "ms": 1078614856451.0642
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-06T08:05:43+08:00",
          "utc": "2004-03-06T00:05:43Z",
          "ms": 1078531542537.389
        },
        "end": {
          "local": "2004-03-07T07:14:16+08:00",
          "utc": "2004-03-06T23:14:16Z",
          "ms": 1078614856451.0642
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2004-03-06",
          "window": {
            "start": {
              "local": "2004-03-06T15:53:14+08:00",
              "utc": "2004-03-06T07:53:14Z",
              "ms": 1078559593992.7294
            },
            "end": {
              "local": "2004-03-06T18:11:24+08:00",
              "utc": "2004-03-06T10:11:24Z",
              "ms": 1078567883895.6599
            }
          },
          "covered_min": 138,
          "window_min": 138,
          "qualifies": true
        },
        {
          "local_date": "2004-03-07",
          "window": {
            "start": {
              "local": "2004-03-07T15:53:47+08:00",
              "utc": "2004-03-07T07:53:47Z",
              "ms": 1078646026905.5063
            },
            "end": {
              "local": "2004-03-07T18:12:28+08:00",
              "utc": "2004-03-07T10:12:28Z",
              "ms": 1078654348225.9314
            }
          },
          "covered_min": 0,
          "window_min": 139,
          "qualifies": false
        }
      ],
      "follows": {
        "festival": "holika-dahana",
        "name": "Holikā Dahana",
        "local_date": "2004-03-06",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 08:06 on Sat 6 Mar to 07:14 on Sun 7 Mar.",
          "fact": "2004-03-06T00:05:43Z → 2004-03-06T23:14:16Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:53–18:11 on the 6th, 15:54–18:12 on the 7th.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 138 of 138 minutes on the 6th and 0 of 139 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one late afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28051 s"
        },
        {
          "step": "counted",
          "text": "Holī is kept the day after Holikā Dahana: Saturday 6 March is the day taken above.",
          "fact": "follows: holika-dahana + 1 d"
        },
        {
          "step": "ruling",
          "text": "Holī, Beijing, 2004: Sunday 7 March.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "2004-03-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Holī 2004 falls on Sunday 7 March. It is kept the day after Holikā Dahana, which falls on Saturday 6 March. Pūrṇimā runs from 08:06 on Sat 6 Mar to 07:14 on Sun 7 Mar and covers all of sāyāhna on the 6th.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vasantotsava",
      "festival": "vasantotsava",
      "name": "Vasantotsava",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-07",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 2115,
      "anga": {
        "type": "tithi",
        "index": 15,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2004-03-07T07:14:16+08:00",
          "utc": "2004-03-06T23:14:16Z",
          "ms": 1078614856451.0642
        },
        "end": {
          "local": "2004-03-08T05:56:02+08:00",
          "utc": "2004-03-07T21:56:02Z",
          "ms": 1078696562168.0216
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-07T07:14:16+08:00",
          "utc": "2004-03-06T23:14:16Z",
          "ms": 1078614856451.0642
        },
        "end": {
          "local": "2004-03-08T05:56:02+08:00",
          "utc": "2004-03-07T21:56:02Z",
          "ms": 1078696562168.0216
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-03-07",
          "window": {
            "start": {
              "local": "2004-03-07T06:39:02+08:00",
              "utc": "2004-03-06T22:39:02Z",
              "ms": 1078612741623.806
            },
            "end": {
              "local": "2004-03-07T06:39:02+08:00",
              "utc": "2004-03-06T22:39:02Z",
              "ms": 1078612741623.806
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-03-08",
          "window": {
            "start": {
              "local": "2004-03-08T06:37:28+08:00",
              "utc": "2004-03-07T22:37:28Z",
              "ms": 1078699048356.3617
            },
            "end": {
              "local": "2004-03-08T06:37:28+08:00",
              "utc": "2004-03-07T22:37:28Z",
              "ms": 1078699048356.3617
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 07:14 on Sun 7 Mar to 05:56 on Mon 8 Mar.",
          "fact": "2004-03-06T23:14:16Z → 2004-03-07T21:56:02Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:39 on the 7th and 06:37 on the 8th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be current at sunrise. It is not on the 7th and is not on the 8th.",
          "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: purvaviddha → tithi-day · margin 2115 s"
        },
        {
          "step": "ruling",
          "text": "Vasantotsava, Beijing, 2004: Sunday 7 March.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "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": "2004-03-07",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-07",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Vasantotsava 2004 falls on Sunday 7 March. Pratipadā runs from 07:14 on Sun 7 Mar to 05:56 on Mon 8 Mar, and is current at sunrise on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-03-10",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8090,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-03-10T02:24:50+08:00",
          "utc": "2004-03-09T18:24:50Z",
          "ms": 1078856689769.5262
        },
        "end": {
          "local": "2004-03-11T00:23:18+08:00",
          "utc": "2004-03-10T16:23:18Z",
          "ms": 1078935798026.0262
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-10T02:24:50+08:00",
          "utc": "2004-03-09T18:24:50Z",
          "ms": 1078856689769.5262
        },
        "end": {
          "local": "2004-03-11T00:23:18+08:00",
          "utc": "2004-03-10T16:23:18Z",
          "ms": 1078935798026.0262
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-03-09",
          "window": {
            "start": {
              "local": "2004-03-09T20:55:34+08:00",
              "utc": "2004-03-09T12:55:34Z",
              "ms": 1078836933730.4639
            },
            "end": {
              "local": "2004-03-09T20:55:34+08:00",
              "utc": "2004-03-09T12:55:34Z",
              "ms": 1078836933730.4639
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-03-10",
          "window": {
            "start": {
              "local": "2004-03-10T22:08:28+08:00",
              "utc": "2004-03-10T14:08:28Z",
              "ms": 1078927708171.2029
            },
            "end": {
              "local": "2004-03-10T22:08:28+08:00",
              "utc": "2004-03-10T14:08:28Z",
              "ms": 1078927708171.2029
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 02:25 on Wed 10 Mar to 00:23 on Thu 11 Mar.",
          "fact": "2004-03-09T18:24:50Z → 2004-03-10T16:23:18Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:56 on the 9th and 22:08 on the 10th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 9th and is on the 10th.",
          "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 8090 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Wednesday 10 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": "2004-03-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Wednesday 10 March. Caturthī runs from 02:25 on Wed 10 Mar to 00:23 on Thu 11 Mar and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-03-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shitalashtami",
      "festival": "shitalashtami",
      "name": "Śītalāṣṭamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11482,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-03-13T18:03:03+08:00",
          "utc": "2004-03-13T10:03:03Z",
          "ms": 1079172182705.024
        },
        "end": {
          "local": "2004-03-14T15:59:18+08:00",
          "utc": "2004-03-14T07:59:18Z",
          "ms": 1079251157694.8066
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-13T18:03:03+08:00",
          "utc": "2004-03-13T10:03:03Z",
          "ms": 1079172182705.024
        },
        "end": {
          "local": "2004-03-14T15:59:18+08:00",
          "utc": "2004-03-14T07:59:18Z",
          "ms": 1079251157694.8066
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-03-13",
          "window": {
            "start": {
              "local": "2004-03-13T12:00:12+08:00",
              "utc": "2004-03-13T04:00:12Z",
              "ms": 1079150412311.4188
            },
            "end": {
              "local": "2004-03-13T12:48:12+08:00",
              "utc": "2004-03-13T04:48:12Z",
              "ms": 1079153292311.4188
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-03-14",
          "window": {
            "start": {
              "local": "2004-03-14T11:59:56+08:00",
              "utc": "2004-03-14T03:59:56Z",
              "ms": 1079236795867.4885
            },
            "end": {
              "local": "2004-03-14T12:47:56+08:00",
              "utc": "2004-03-14T04:47:56Z",
              "ms": 1079239675867.4885
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 18:03 on Sat 13 Mar to 15:59 on Sun 14 Mar.",
          "fact": "2004-03-13T10:03:03Z → 2004-03-14T07:59:18Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 13th, 12:00–12:48 on the 14th.",
          "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 13th and 48 of 48 on the 14th.",
          "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 11482 s"
        },
        {
          "step": "ruling",
          "text": "Śītalāṣṭamī, Beijing, 2004: Sunday 14 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": "2004-03-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śītalāṣṭamī 2004 falls on Sunday 14 March. Aṣṭamī runs from 18:03 on Sat 13 Mar to 15:59 on Sun 14 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-03-17",
      "festival": "ekadashi",
      "name": "Pāpamocanī Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14556,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-03-16T12:08:04+08:00",
          "utc": "2004-03-16T04:08:04Z",
          "ms": 1079410084471.6052
        },
        "end": {
          "local": "2004-03-17T10:25:47+08:00",
          "utc": "2004-03-17T02:25:47Z",
          "ms": 1079490347456.0917
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-16T12:08:04+08:00",
          "utc": "2004-03-16T04:08:04Z",
          "ms": 1079410084471.6052
        },
        "end": {
          "local": "2004-03-17T10:25:47+08:00",
          "utc": "2004-03-17T02:25:47Z",
          "ms": 1079490347456.0917
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-03-16",
          "window": {
            "start": {
              "local": "2004-03-16T06:24:48+08:00",
              "utc": "2004-03-15T22:24:48Z",
              "ms": 1079389487817.2361
            },
            "end": {
              "local": "2004-03-16T06:24:48+08:00",
              "utc": "2004-03-15T22:24:48Z",
              "ms": 1079389487817.2361
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-03-17",
          "window": {
            "start": {
              "local": "2004-03-17T06:23:11+08:00",
              "utc": "2004-03-16T22:23:11Z",
              "ms": 1079475791428.841
            },
            "end": {
              "local": "2004-03-17T06:23:11+08:00",
              "utc": "2004-03-16T22:23:11Z",
              "ms": 1079475791428.841
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 12:08 on Tue 16 Mar to 10:26 on Wed 17 Mar.",
          "fact": "2004-03-16T04:08:04Z → 2004-03-17T02:25:47Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:25 on the 16th and 06:23 on the 17th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is 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 14556 s"
        },
        {
          "step": "ruling",
          "text": "Pāpamocanī Ekādaśī, Beijing, 2004: Wednesday 17 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": "2004-03-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Pāpamocanī Ekādaśī 2004 falls on Wednesday 17 March. Ekādaśī runs from 12:08 on Tue 16 Mar to 10:26 on Wed 17 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-03-17",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-03-18",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34010,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-03-18T08:57:11+08:00",
          "utc": "2004-03-18T00:57:11Z",
          "ms": 1079571430841.1803
        },
        "end": {
          "local": "2004-03-19T07:46:50+08:00",
          "utc": "2004-03-18T23:46:50Z",
          "ms": 1079653610435.7192
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-18T08:57:11+08:00",
          "utc": "2004-03-18T00:57:11Z",
          "ms": 1079571430841.1803
        },
        "end": {
          "local": "2004-03-19T07:46:50+08:00",
          "utc": "2004-03-18T23:46:50Z",
          "ms": 1079653610435.7192
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-03-18",
          "window": {
            "start": {
              "local": "2004-03-18T18:24:01+08:00",
              "utc": "2004-03-18T10:24:01Z",
              "ms": 1079605441078.0316
            },
            "end": {
              "local": "2004-03-18T19:59:29+08:00",
              "utc": "2004-03-18T11:59:29Z",
              "ms": 1079611168681.4197
            }
          },
          "covered_min": 95,
          "window_min": 95,
          "qualifies": true
        },
        {
          "local_date": "2004-03-19",
          "window": {
            "start": {
              "local": "2004-03-19T18:25:03+08:00",
              "utc": "2004-03-19T10:25:03Z",
              "ms": 1079691902986.0007
            },
            "end": {
              "local": "2004-03-19T20:00:09+08:00",
              "utc": "2004-03-19T12:00:09Z",
              "ms": 1079697609417.6177
            }
          },
          "covered_min": 0,
          "window_min": 95,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:57 on Thu 18 Mar to 07:47 on Fri 19 Mar.",
          "fact": "2004-03-18T00:57:11Z → 2004-03-18T23:46:50Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:24–19:59 on the 18th, 18:25–20:00 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 95 of 95 minutes on the 18th and 0 of 95 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 34010 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Thursday 18 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": "2004-03-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Thursday 18 March. Trayodaśī runs from 08:57 on Thu 18 Mar to 07:47 on Fri 19 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-03-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-03-19",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22450,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-03-19T07:46:50+08:00",
          "utc": "2004-03-18T23:46:50Z",
          "ms": 1079653610435.7192
        },
        "end": {
          "local": "2004-03-20T06:59:52+08:00",
          "utc": "2004-03-19T22:59:52Z",
          "ms": 1079737192121.2274
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-19T07:46:50+08:00",
          "utc": "2004-03-18T23:46:50Z",
          "ms": 1079653610435.7192
        },
        "end": {
          "local": "2004-03-20T06:59:52+08:00",
          "utc": "2004-03-19T22:59:52Z",
          "ms": 1079737192121.2274
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-03-18",
          "window": {
            "start": {
              "local": "2004-03-18T23:58:00+08:00",
              "utc": "2004-03-18T15:58:00Z",
              "ms": 1079625479590.7366
            },
            "end": {
              "local": "2004-03-19T00:46:00+08:00",
              "utc": "2004-03-18T16:46:00Z",
              "ms": 1079628359590.7366
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-03-19",
          "window": {
            "start": {
              "local": "2004-03-19T23:57:42+08:00",
              "utc": "2004-03-19T15:57:42Z",
              "ms": 1079711862104.5641
            },
            "end": {
              "local": "2004-03-20T00:45:42+08:00",
              "utc": "2004-03-19T16:45:42Z",
              "ms": 1079714742104.5641
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 07:47 on Fri 19 Mar to 07:00 on Sat 20 Mar.",
          "fact": "2004-03-18T23:46:50Z → 2004-03-19T22:59:52Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:58–00:46 on the 18th, 23:58–00:46 on the 19th.",
          "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 18th and 48 of 48 on the 19th.",
          "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 22450 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Friday 19 March.",
          "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": "2004-03-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Friday 19 March. Caturdaśī runs from 07:47 on Fri 19 Mar to 07:00 on Sat 20 Mar and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-03-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/navaratra-arambha-caitra",
      "festival": "navaratra-arambha-caitra",
      "name": "Navarātrārambha (Caitra)",
      "everyday": "Chaitra Navratri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18120,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2004-03-21T06:41:21+08:00",
          "utc": "2004-03-20T22:41:21Z",
          "ms": 1079822481057.9146
        },
        "end": {
          "local": "2004-03-22T06:55:38+08:00",
          "utc": "2004-03-21T22:55:38Z",
          "ms": 1079909737958.1171
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-21T06:41:21+08:00",
          "utc": "2004-03-20T22:41:21Z",
          "ms": 1079822481057.9146
        },
        "end": {
          "local": "2004-03-22T06:55:38+08:00",
          "utc": "2004-03-21T22:55:38Z",
          "ms": 1079909737958.1171
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-03-21",
          "window": {
            "start": {
              "local": "2004-03-21T11:57:55+08:00",
              "utc": "2004-03-21T03:57:55Z",
              "ms": 1079841475296.623
            },
            "end": {
              "local": "2004-03-21T12:45:55+08:00",
              "utc": "2004-03-21T04:45:55Z",
              "ms": 1079844355296.623
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-03-22",
          "window": {
            "start": {
              "local": "2004-03-22T11:57:38+08:00",
              "utc": "2004-03-22T03:57:38Z",
              "ms": 1079927857500.3574
            },
            "end": {
              "local": "2004-03-22T12:45:38+08:00",
              "utc": "2004-03-22T04:45:38Z",
              "ms": 1079930737500.3574
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 06:41 on Sun 21 Mar to 06:56 on Mon 22 Mar.",
          "fact": "2004-03-20T22:41:21Z → 2004-03-21T22:55:38Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 21st, 11:58–12:46 on the 22nd.",
          "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 21st and 0 of 48 on the 22nd.",
          "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 18120 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha (Caitra), Beijing, 2004: Sunday 21 March.",
          "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": "2004-03-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Navarātrārambha (Caitra) (Chaitra Navratri) 2004 falls on Sunday 21 March. Pratipadā runs from 06:41 on Sun 21 Mar to 06:56 on Mon 22 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/gauri-tritiya",
      "festival": "gauri-tritiya",
      "name": "Gaurī Tṛtīyā",
      "everyday": "Gangaur",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9980,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2004-03-23T07:45:24+08:00",
          "utc": "2004-03-22T23:45:24Z",
          "ms": 1079999124233.8273
        },
        "end": {
          "local": "2004-03-24T09:10:41+08:00",
          "utc": "2004-03-24T01:10:41Z",
          "ms": 1080090641298.1957
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-23T07:45:24+08:00",
          "utc": "2004-03-22T23:45:24Z",
          "ms": 1079999124233.8273
        },
        "end": {
          "local": "2004-03-24T09:10:41+08:00",
          "utc": "2004-03-24T01:10:41Z",
          "ms": 1080090641298.1957
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-03-23",
          "window": {
            "start": {
              "local": "2004-03-23T11:57:20+08:00",
              "utc": "2004-03-23T03:57:20Z",
              "ms": 1080014239611.919
            },
            "end": {
              "local": "2004-03-23T12:45:20+08:00",
              "utc": "2004-03-23T04:45:20Z",
              "ms": 1080017119611.919
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-03-24",
          "window": {
            "start": {
              "local": "2004-03-24T11:57:02+08:00",
              "utc": "2004-03-24T03:57:02Z",
              "ms": 1080100621648.6763
            },
            "end": {
              "local": "2004-03-24T12:45:02+08:00",
              "utc": "2004-03-24T04:45:02Z",
              "ms": 1080103501648.6763
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 07:45 on Tue 23 Mar to 09:11 on Wed 24 Mar.",
          "fact": "2004-03-22T23:45:24Z → 2004-03-24T01:10:41Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 23rd, 11:57–12:45 on the 24th.",
          "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 23rd and 0 of 48 on the 24th.",
          "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 9980 s"
        },
        {
          "step": "ruling",
          "text": "Gaurī Tṛtīyā, Beijing, 2004: Tuesday 23 March.",
          "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": "2004-03-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Gaurī Tṛtīyā (Gangaur) 2004 falls on Tuesday 23 March. Tṛtīyā runs from 07:45 on Tue 23 Mar to 09:11 on Wed 24 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/saubhagya-shayana-vrata",
      "festival": "saubhagya-shayana-vrata",
      "name": "Saubhāgya Śayana Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9980,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2004-03-23T07:45:24+08:00",
          "utc": "2004-03-22T23:45:24Z",
          "ms": 1079999124233.8273
        },
        "end": {
          "local": "2004-03-24T09:10:41+08:00",
          "utc": "2004-03-24T01:10:41Z",
          "ms": 1080090641298.1957
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-23T07:45:24+08:00",
          "utc": "2004-03-22T23:45:24Z",
          "ms": 1079999124233.8273
        },
        "end": {
          "local": "2004-03-24T09:10:41+08:00",
          "utc": "2004-03-24T01:10:41Z",
          "ms": 1080090641298.1957
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-03-23",
          "window": {
            "start": {
              "local": "2004-03-23T11:57:20+08:00",
              "utc": "2004-03-23T03:57:20Z",
              "ms": 1080014239611.919
            },
            "end": {
              "local": "2004-03-23T12:45:20+08:00",
              "utc": "2004-03-23T04:45:20Z",
              "ms": 1080017119611.919
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-03-24",
          "window": {
            "start": {
              "local": "2004-03-24T11:57:02+08:00",
              "utc": "2004-03-24T03:57:02Z",
              "ms": 1080100621648.6763
            },
            "end": {
              "local": "2004-03-24T12:45:02+08:00",
              "utc": "2004-03-24T04:45:02Z",
              "ms": 1080103501648.6763
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 07:45 on Tue 23 Mar to 09:11 on Wed 24 Mar.",
          "fact": "2004-03-22T23:45:24Z → 2004-03-24T01:10:41Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 23rd, 11:57–12:45 on the 24th.",
          "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 23rd and 0 of 48 on the 24th.",
          "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 9980 s"
        },
        {
          "step": "ruling",
          "text": "Saubhāgya Śayana Vrata, Beijing, 2004: Tuesday 23 March.",
          "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": "2004-03-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saubhāgya Śayana Vrata 2004 falls on Tuesday 23 March. Tṛtīyā runs from 07:45 on Tue 23 Mar to 09:11 on Wed 24 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-03-24",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2928,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-03-24T09:10:41+08:00",
          "utc": "2004-03-24T01:10:41Z",
          "ms": 1080090641298.1957
        },
        "end": {
          "local": "2004-03-25T11:07:55+08:00",
          "utc": "2004-03-25T03:07:55Z",
          "ms": 1080184075460.9939
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-24T09:10:41+08:00",
          "utc": "2004-03-24T01:10:41Z",
          "ms": 1080090641298.1957
        },
        "end": {
          "local": "2004-03-25T11:07:55+08:00",
          "utc": "2004-03-25T03:07:55Z",
          "ms": 1080184075460.9939
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-03-24",
          "window": {
            "start": {
              "local": "2004-03-24T11:57:02+08:00",
              "utc": "2004-03-24T03:57:02Z",
              "ms": 1080100621648.6763
            },
            "end": {
              "local": "2004-03-24T12:45:02+08:00",
              "utc": "2004-03-24T04:45:02Z",
              "ms": 1080103501648.6763
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-03-25",
          "window": {
            "start": {
              "local": "2004-03-25T11:56:44+08:00",
              "utc": "2004-03-25T03:56:44Z",
              "ms": 1080187003628.3718
            },
            "end": {
              "local": "2004-03-25T12:44:44+08:00",
              "utc": "2004-03-25T04:44:44Z",
              "ms": 1080189883628.3718
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 09:11 on Wed 24 Mar to 11:08 on Thu 25 Mar.",
          "fact": "2004-03-24T01:10:41Z → 2004-03-25T03:07:55Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 24th, 11:57–12:45 on the 25th.",
          "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 24th and 0 of 48 on the 25th.",
          "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 2928 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Wednesday 24 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": "2004-03-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-24",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Wednesday 24 March. Caturthī runs from 09:11 on Wed 24 Mar to 11:08 on Thu 25 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-03-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/lakshmi-panchami",
      "festival": "lakshmi-panchami",
      "name": "Lakṣmī Pañcamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2701,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2004-03-25T11:07:55+08:00",
          "utc": "2004-03-25T03:07:55Z",
          "ms": 1080184075460.9939
        },
        "end": {
          "local": "2004-03-26T13:29:27+08:00",
          "utc": "2004-03-26T05:29:27Z",
          "ms": 1080278966950.1282
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-25T11:07:55+08:00",
          "utc": "2004-03-25T03:07:55Z",
          "ms": 1080184075460.9939
        },
        "end": {
          "local": "2004-03-26T13:29:27+08:00",
          "utc": "2004-03-26T05:29:27Z",
          "ms": 1080278966950.1282
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-03-25",
          "window": {
            "start": {
              "local": "2004-03-25T11:56:44+08:00",
              "utc": "2004-03-25T03:56:44Z",
              "ms": 1080187003628.3718
            },
            "end": {
              "local": "2004-03-25T12:44:44+08:00",
              "utc": "2004-03-25T04:44:44Z",
              "ms": 1080189883628.3718
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-03-26",
          "window": {
            "start": {
              "local": "2004-03-26T11:56:26+08:00",
              "utc": "2004-03-26T03:56:26Z",
              "ms": 1080273385569.1221
            },
            "end": {
              "local": "2004-03-26T12:44:26+08:00",
              "utc": "2004-03-26T04:44:26Z",
              "ms": 1080276265569.1221
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 11:08 on Thu 25 Mar to 13:29 on Fri 26 Mar.",
          "fact": "2004-03-25T03:07:55Z → 2004-03-26T05:29:27Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 25th, 11:56–12:44 on the 26th.",
          "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 25th and 48 of 48 on the 26th.",
          "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 2701 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pañcamī, Beijing, 2004: Thursday 25 March.",
          "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": "2004-03-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-25",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Lakṣmī Pañcamī 2004 falls on Thursday 25 March. Pañcamī runs from 11:08 on Thu 25 Mar to 13:29 on Fri 26 Mar 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/beijing/festivals/2004/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": "/beijing/festivals/2004/bhavani-utpatti",
      "festival": "bhavani-utpatti",
      "name": "Bhavānī Utpatti",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21168,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-03-28T18:36:37+08:00",
          "utc": "2004-03-28T10:36:37Z",
          "ms": 1080470197081.4264
        },
        "end": {
          "local": "2004-03-29T20:53:17+08:00",
          "utc": "2004-03-29T12:53:17Z",
          "ms": 1080564797308.0363
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-28T18:36:37+08:00",
          "utc": "2004-03-28T10:36:37Z",
          "ms": 1080470197081.4264
        },
        "end": {
          "local": "2004-03-29T20:53:17+08:00",
          "utc": "2004-03-29T12:53:17Z",
          "ms": 1080564797308.0363
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-03-28",
          "window": {
            "start": {
              "local": "2004-03-28T11:55:49+08:00",
              "utc": "2004-03-28T03:55:49Z",
              "ms": 1080446149407.9525
            },
            "end": {
              "local": "2004-03-28T12:43:49+08:00",
              "utc": "2004-03-28T04:43:49Z",
              "ms": 1080449029407.9525
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-03-29",
          "window": {
            "start": {
              "local": "2004-03-29T11:55:31+08:00",
              "utc": "2004-03-29T03:55:31Z",
              "ms": 1080532531343.8767
            },
            "end": {
              "local": "2004-03-29T12:43:31+08:00",
              "utc": "2004-03-29T04:43:31Z",
              "ms": 1080535411343.8767
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 18:37 on Sun 28 Mar to 20:53 on Mon 29 Mar.",
          "fact": "2004-03-28T10:36:37Z → 2004-03-29T12:53:17Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 28th, 11:56–12:44 on the 29th.",
          "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 28th and 48 of 48 on the 29th.",
          "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 21168 s"
        },
        {
          "step": "ruling",
          "text": "Bhavānī Utpatti, Beijing, 2004: Monday 29 March.",
          "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": "2004-03-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Bhavānī Utpatti 2004 falls on Monday 29 March. Aṣṭamī runs from 18:37 on Sun 28 Mar to 20:53 on Mon 29 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/rama-navami",
      "festival": "rama-navami",
      "name": "Rāma Navamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-03-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29386,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2004-03-29T20:53:17+08:00",
          "utc": "2004-03-29T12:53:17Z",
          "ms": 1080564797308.0363
        },
        "end": {
          "local": "2004-03-30T22:40:38+08:00",
          "utc": "2004-03-30T14:40:38Z",
          "ms": 1080657637573.6498
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-29T20:53:17+08:00",
          "utc": "2004-03-29T12:53:17Z",
          "ms": 1080564797308.0363
        },
        "end": {
          "local": "2004-03-30T22:40:38+08:00",
          "utc": "2004-03-30T14:40:38Z",
          "ms": 1080657637573.6498
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-03-29",
          "window": {
            "start": {
              "local": "2004-03-29T11:55:31+08:00",
              "utc": "2004-03-29T03:55:31Z",
              "ms": 1080532531343.8767
            },
            "end": {
              "local": "2004-03-29T12:43:31+08:00",
              "utc": "2004-03-29T04:43:31Z",
              "ms": 1080535411343.8767
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-03-30",
          "window": {
            "start": {
              "local": "2004-03-30T11:55:13+08:00",
              "utc": "2004-03-30T03:55:13Z",
              "ms": 1080618913316.5215
            },
            "end": {
              "local": "2004-03-30T12:43:13+08:00",
              "utc": "2004-03-30T04:43:13Z",
              "ms": 1080621793316.5215
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 20:53 on Mon 29 Mar to 22:41 on Tue 30 Mar.",
          "fact": "2004-03-29T12:53:17Z → 2004-03-30T14:40:38Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 29th, 11:55–12:43 on the 30th.",
          "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 29th and 48 of 48 on the 30th.",
          "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 29386 s"
        },
        {
          "step": "ruling",
          "text": "Rāma Navamī, Beijing, 2004: Tuesday 30 March.",
          "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": "2004-03-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-03-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Rāma Navamī 2004 falls on Tuesday 30 March. Navamī runs from 20:53 on Mon 29 Mar to 22:41 on Tue 30 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-04-01",
      "festival": "ekadashi",
      "name": "Kāmadā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20641,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-03-31T23:49:02+08:00",
          "utc": "2004-03-31T15:49:02Z",
          "ms": 1080748141898.0712
        },
        "end": {
          "local": "2004-04-02T00:13:21+08:00",
          "utc": "2004-04-01T16:13:21Z",
          "ms": 1080836000938.9757
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-03-31T23:49:02+08:00",
          "utc": "2004-03-31T15:49:02Z",
          "ms": 1080748141898.0712
        },
        "end": {
          "local": "2004-04-02T00:13:21+08:00",
          "utc": "2004-04-01T16:13:21Z",
          "ms": 1080836000938.9757
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-04-01",
          "window": {
            "start": {
              "local": "2004-04-01T05:58:58+08:00",
              "utc": "2004-03-31T21:58:58Z",
              "ms": 1080770338437.434
            },
            "end": {
              "local": "2004-04-01T05:58:58+08:00",
              "utc": "2004-03-31T21:58:58Z",
              "ms": 1080770338437.434
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-04-02",
          "window": {
            "start": {
              "local": "2004-04-02T05:57:22+08:00",
              "utc": "2004-04-01T21:57:22Z",
              "ms": 1080856642416.5848
            },
            "end": {
              "local": "2004-04-02T05:57:22+08:00",
              "utc": "2004-04-01T21:57:22Z",
              "ms": 1080856642416.5848
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 23:49 on Wed 31 Mar to 00:13 on Fri 2 Apr.",
          "fact": "2004-03-31T15:49:02Z → 2004-04-01T16:13:21Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:59 on the 1st and 05:57 on the 2nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not 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 20641 s"
        },
        {
          "step": "ruling",
          "text": "Kāmadā Ekādaśī, Beijing, 2004: Thursday 1 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": "2004-04-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kāmadā Ekādaśī 2004 falls on Thursday 1 April. Ekādaśī runs from 23:49 on Wed 31 Mar to 00:13 on Fri 2 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-04-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ananga-trayodashi",
      "festival": "ananga-trayodashi",
      "name": "Anaṅga Trayodaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36495,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-04-02T23:52:48+08:00",
          "utc": "2004-04-02T15:52:48Z",
          "ms": 1080921168413.7319
        },
        "end": {
          "local": "2004-04-03T22:50:17+08:00",
          "utc": "2004-04-03T14:50:17Z",
          "ms": 1081003816513.3658
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-02T23:52:48+08:00",
          "utc": "2004-04-02T15:52:48Z",
          "ms": 1080921168413.7319
        },
        "end": {
          "local": "2004-04-03T22:50:17+08:00",
          "utc": "2004-04-03T14:50:17Z",
          "ms": 1081003816513.3658
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-04-02",
          "window": {
            "start": {
              "local": "2004-04-02T11:54:20+08:00",
              "utc": "2004-04-02T03:54:20Z",
              "ms": 1080878059653.7357
            },
            "end": {
              "local": "2004-04-02T12:42:20+08:00",
              "utc": "2004-04-02T04:42:20Z",
              "ms": 1080880939653.7357
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-04-03",
          "window": {
            "start": {
              "local": "2004-04-03T11:54:02+08:00",
              "utc": "2004-04-03T03:54:02Z",
              "ms": 1080964441974.4519
            },
            "end": {
              "local": "2004-04-03T12:42:02+08:00",
              "utc": "2004-04-03T04:42:02Z",
              "ms": 1080967321974.4519
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 23:53 on Fri 2 Apr to 22:50 on Sat 3 Apr.",
          "fact": "2004-04-02T15:52:48Z → 2004-04-03T14:50:17Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 2nd, 11:54–12:42 on the 3rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī 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. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 36495 s"
        },
        {
          "step": "ruling",
          "text": "Anaṅga Trayodaśī, Beijing, 2004: Saturday 3 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": "2004-04-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Anaṅga Trayodaśī 2004 falls on Saturday 3 April. Trayodaśī runs from 23:53 on Fri 2 Apr to 22:50 on Sat 3 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-04-03",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9608,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-04-02T23:52:48+08:00",
          "utc": "2004-04-02T15:52:48Z",
          "ms": 1080921168413.7319
        },
        "end": {
          "local": "2004-04-03T22:50:17+08:00",
          "utc": "2004-04-03T14:50:17Z",
          "ms": 1081003816513.3658
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-02T23:52:48+08:00",
          "utc": "2004-04-02T15:52:48Z",
          "ms": 1080921168413.7319
        },
        "end": {
          "local": "2004-04-03T22:50:17+08:00",
          "utc": "2004-04-03T14:50:17Z",
          "ms": 1081003816513.3658
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-04-02",
          "window": {
            "start": {
              "local": "2004-04-02T18:39:17+08:00",
              "utc": "2004-04-02T10:39:17Z",
              "ms": 1080902356890.8866
            },
            "end": {
              "local": "2004-04-02T20:09:29+08:00",
              "utc": "2004-04-02T12:09:29Z",
              "ms": 1080907768861.9358
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        },
        {
          "local_date": "2004-04-03",
          "window": {
            "start": {
              "local": "2004-04-03T18:40:17+08:00",
              "utc": "2004-04-03T10:40:17Z",
              "ms": 1080988817275.1486
            },
            "end": {
              "local": "2004-04-03T20:10:08+08:00",
              "utc": "2004-04-03T12:10:08Z",
              "ms": 1080994208470.5397
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 23:53 on Fri 2 Apr to 22:50 on Sat 3 Apr.",
          "fact": "2004-04-02T15:52:48Z → 2004-04-03T14:50:17Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:39–20:09 on the 2nd, 18:40–20:10 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 90 minutes on the 2nd and 90 of 90 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 9608 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Saturday 3 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": "2004-04-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Saturday 3 April. Trayodaśī runs from 23:53 on Fri 2 Apr to 22:50 on Sat 3 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-04-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/vishnu-damanaka-chaturdashi",
      "festival": "vishnu-damanaka-chaturdashi",
      "name": "Viṣṇudamanaka Caturdaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30570,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-04-03T22:50:17+08:00",
          "utc": "2004-04-03T14:50:17Z",
          "ms": 1081003816513.3658
        },
        "end": {
          "local": "2004-04-04T21:11:14+08:00",
          "utc": "2004-04-04T13:11:14Z",
          "ms": 1081084273990.966
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-03T22:50:17+08:00",
          "utc": "2004-04-03T14:50:17Z",
          "ms": 1081003816513.3658
        },
        "end": {
          "local": "2004-04-04T21:11:14+08:00",
          "utc": "2004-04-04T13:11:14Z",
          "ms": 1081084273990.966
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-04-03",
          "window": {
            "start": {
              "local": "2004-04-03T11:54:02+08:00",
              "utc": "2004-04-03T03:54:02Z",
              "ms": 1080964441974.4519
            },
            "end": {
              "local": "2004-04-03T12:42:02+08:00",
              "utc": "2004-04-03T04:42:02Z",
              "ms": 1080967321974.4519
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-04-04",
          "window": {
            "start": {
              "local": "2004-04-04T11:53:44+08:00",
              "utc": "2004-04-04T03:53:44Z",
              "ms": 1081050824434.9198
            },
            "end": {
              "local": "2004-04-04T12:41:44+08:00",
              "utc": "2004-04-04T04:41:44Z",
              "ms": 1081053704434.9198
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 22:50 on Sat 3 Apr to 21:11 on Sun 4 Apr.",
          "fact": "2004-04-03T14:50:17Z → 2004-04-04T13:11:14Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 3rd, 11:54–12:42 on the 4th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī 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. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 30570 s"
        },
        {
          "step": "ruling",
          "text": "Viṣṇudamanaka Caturdaśī, Beijing, 2004: Sunday 4 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": "2004-04-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Viṣṇudamanaka Caturdaśī 2004 falls on Sunday 4 April. Caturdaśī runs from 22:50 on Sat 3 Apr to 21:11 on Sun 4 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/chaitri-purnima",
      "festival": "chaitri-purnima",
      "name": "Caitrī Pūrṇimā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22878,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-04-04T21:11:14+08:00",
          "utc": "2004-04-04T13:11:14Z",
          "ms": 1081084273990.966
        },
        "end": {
          "local": "2004-04-05T19:02:45+08:00",
          "utc": "2004-04-05T11:02:45Z",
          "ms": 1081162965196.5399
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-04T21:11:14+08:00",
          "utc": "2004-04-04T13:11:14Z",
          "ms": 1081084273990.966
        },
        "end": {
          "local": "2004-04-05T19:02:45+08:00",
          "utc": "2004-04-05T11:02:45Z",
          "ms": 1081162965196.5399
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-04-04",
          "window": {
            "start": {
              "local": "2004-04-04T11:53:44+08:00",
              "utc": "2004-04-04T03:53:44Z",
              "ms": 1081050824434.9198
            },
            "end": {
              "local": "2004-04-04T12:41:44+08:00",
              "utc": "2004-04-04T04:41:44Z",
              "ms": 1081053704434.9198
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-04-05",
          "window": {
            "start": {
              "local": "2004-04-05T11:53:27+08:00",
              "utc": "2004-04-05T03:53:27Z",
              "ms": 1081137207057.3323
            },
            "end": {
              "local": "2004-04-05T12:41:27+08:00",
              "utc": "2004-04-05T04:41:27Z",
              "ms": 1081140087057.3323
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 21:11 on Sun 4 Apr to 19:03 on Mon 5 Apr.",
          "fact": "2004-04-04T13:11:14Z → 2004-04-05T11:02:45Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 4th, 11:53–12:41 on the 5th.",
          "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 4th and 48 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 22878 s"
        },
        {
          "step": "ruling",
          "text": "Caitrī Pūrṇimā, Beijing, 2004: Monday 5 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": "2004-04-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Caitrī Pūrṇimā 2004 falls on Monday 5 April. Pūrṇimā runs from 21:11 on Sun 4 Apr to 19:03 on Mon 5 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-04-08",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35112,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-04-08T10:59:02+08:00",
          "utc": "2004-04-08T02:59:02Z",
          "ms": 1081393142248.4956
        },
        "end": {
          "local": "2004-04-09T08:10:06+08:00",
          "utc": "2004-04-09T00:10:06Z",
          "ms": 1081469405681.7521
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-08T10:59:02+08:00",
          "utc": "2004-04-08T02:59:02Z",
          "ms": 1081393142248.4956
        },
        "end": {
          "local": "2004-04-09T08:10:06+08:00",
          "utc": "2004-04-09T00:10:06Z",
          "ms": 1081469405681.7521
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-04-07",
          "window": {
            "start": {
              "local": "2004-04-07T21:06:35+08:00",
              "utc": "2004-04-07T13:06:35Z",
              "ms": 1081343194593.618
            },
            "end": {
              "local": "2004-04-07T21:06:35+08:00",
              "utc": "2004-04-07T13:06:35Z",
              "ms": 1081343194593.618
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-04-08",
          "window": {
            "start": {
              "local": "2004-04-08T22:24:53+08:00",
              "utc": "2004-04-08T14:24:53Z",
              "ms": 1081434293447.083
            },
            "end": {
              "local": "2004-04-08T22:24:53+08:00",
              "utc": "2004-04-08T14:24:53Z",
              "ms": 1081434293447.083
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:59 on Thu 8 Apr to 08:10 on Fri 9 Apr.",
          "fact": "2004-04-08T02:59:02Z → 2004-04-09T00:10:06Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:07 on the 7th and 22:25 on the 8th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 7th and is on the 8th.",
          "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 35112 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Thursday 8 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": "2004-04-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Thursday 8 April. Caturthī runs from 10:59 on Thu 8 Apr to 08:10 on Fri 9 Apr and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-04-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/vaishakhi",
      "festival": "vaishakhi",
      "name": "Vaiśākhī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32782,
      "anga": {
        "type": "sankranti",
        "index": 0,
        "key": "mesha",
        "name": "Meṣa",
        "start": {
          "local": "2004-04-13T20:32:19+08:00",
          "utc": "2004-04-13T12:32:19Z",
          "ms": 1081859539241.1885
        },
        "end": {
          "local": "2004-05-14T17:25:30+08:00",
          "utc": "2004-05-14T09:25:30Z",
          "ms": 1084526730015.0026
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2004-04-13T20:32:19+08:00",
          "utc": "2004-04-13T12:32:19Z",
          "ms": 1081859539241.1885
        },
        "end": {
          "local": "2004-04-13T20:32:19+08:00",
          "utc": "2004-04-13T12:32:19Z",
          "ms": 1081859539241.1885
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "2004-04-13",
          "window": {
            "start": {
              "local": "2004-04-13T05:40:12+08:00",
              "utc": "2004-04-12T21:40:12Z",
              "ms": 1081806011548.9084
            },
            "end": {
              "local": "2004-04-14T05:38:41+08:00",
              "utc": "2004-04-13T21:38:41Z",
              "ms": 1081892320969.3337
            }
          },
          "covered_min": 1,
          "window_min": 1438,
          "qualifies": true
        },
        {
          "local_date": "2004-04-14",
          "window": {
            "start": {
              "local": "2004-04-14T05:38:41+08:00",
              "utc": "2004-04-13T21:38:41Z",
              "ms": 1081892320969.3337
            },
            "end": {
              "local": "2004-04-15T05:37:11+08:00",
              "utc": "2004-04-14T21:37:11Z",
              "ms": 1081978631048.1804
            }
          },
          "covered_min": 0,
          "window_min": 1439,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Meṣa at 20:32 on Tue 13 Apr.",
          "fact": "2004-04-13T12:32:19Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 05:40 on the 13th, and from 05:39 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 32782 s"
        },
        {
          "step": "ruling",
          "text": "Vaiśākhī, Beijing, 2004: Tuesday 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": "2004-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2004-04-13",
          "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": "sunset-rule",
          "local_date": "2004-04-14",
          "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 Beijing, Vaiśākhī 2004 falls on Tuesday 13 April. The Sun enters Meṣa at 20:32 on Tue 13 Apr, and the rule counts the day from sunrise. 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/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-04-15",
      "festival": "ekadashi",
      "name": "Varūthinī Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33794,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-04-14T20:13:57+08:00",
          "utc": "2004-04-14T12:13:57Z",
          "ms": 1081944837428.6091
        },
        "end": {
          "local": "2004-04-15T19:32:34+08:00",
          "utc": "2004-04-15T11:32:34Z",
          "ms": 1082028753893.4353
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-14T20:13:57+08:00",
          "utc": "2004-04-14T12:13:57Z",
          "ms": 1081944837428.6091
        },
        "end": {
          "local": "2004-04-15T19:32:34+08:00",
          "utc": "2004-04-15T11:32:34Z",
          "ms": 1082028753893.4353
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-04-15",
          "window": {
            "start": {
              "local": "2004-04-15T05:37:11+08:00",
              "utc": "2004-04-14T21:37:11Z",
              "ms": 1081978631048.1804
            },
            "end": {
              "local": "2004-04-15T05:37:11+08:00",
              "utc": "2004-04-14T21:37:11Z",
              "ms": 1081978631048.1804
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-04-16",
          "window": {
            "start": {
              "local": "2004-04-16T05:35:42+08:00",
              "utc": "2004-04-15T21:35:42Z",
              "ms": 1082064941815.2933
            },
            "end": {
              "local": "2004-04-16T05:35:42+08:00",
              "utc": "2004-04-15T21:35:42Z",
              "ms": 1082064941815.2933
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 20:14 on Wed 14 Apr to 19:33 on Thu 15 Apr.",
          "fact": "2004-04-14T12:13:57Z → 2004-04-15T11:32:34Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:37 on the 15th and 05:36 on the 16th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not 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 33794 s"
        },
        {
          "step": "ruling",
          "text": "Varūthinī Ekādaśī, Beijing, 2004: Thursday 15 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": "2004-04-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Varūthinī Ekādaśī 2004 falls on Thursday 15 April. Ekādaśī runs from 20:14 on Wed 14 Apr to 19:33 on Thu 15 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-04-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-04-16",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-16",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1469,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-04-16T19:17:53+08:00",
          "utc": "2004-04-16T11:17:53Z",
          "ms": 1082114272738.1708
        },
        "end": {
          "local": "2004-04-17T19:30:49+08:00",
          "utc": "2004-04-17T11:30:49Z",
          "ms": 1082201448563.443
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-16T19:17:53+08:00",
          "utc": "2004-04-16T11:17:53Z",
          "ms": 1082114272738.1708
        },
        "end": {
          "local": "2004-04-17T19:30:49+08:00",
          "utc": "2004-04-17T11:30:49Z",
          "ms": 1082201448563.443
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-04-16",
          "window": {
            "start": {
              "local": "2004-04-16T18:53:23+08:00",
              "utc": "2004-04-16T10:53:23Z",
              "ms": 1082112803382.1992
            },
            "end": {
              "local": "2004-04-16T20:18:50+08:00",
              "utc": "2004-04-16T12:18:50Z",
              "ms": 1082117930037.917
            }
          },
          "covered_min": 61,
          "window_min": 85,
          "qualifies": true
        },
        {
          "local_date": "2004-04-17",
          "window": {
            "start": {
              "local": "2004-04-17T18:54:24+08:00",
              "utc": "2004-04-17T10:54:24Z",
              "ms": 1082199264125.4185
            },
            "end": {
              "local": "2004-04-17T20:19:31+08:00",
              "utc": "2004-04-17T12:19:31Z",
              "ms": 1082204370979.581
            }
          },
          "covered_min": 36,
          "window_min": 85,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:18 on Fri 16 Apr to 19:31 on Sat 17 Apr.",
          "fact": "2004-04-16T11:17:53Z → 2004-04-17T11:30:49Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:19 on the 16th, 18:54–20:20 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 61 of 85 minutes on the 16th and 36 of 85 on the 17th.",
          "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 1469 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Friday 16 April.",
          "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": "2004-04-16",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-16",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Friday 16 April. Trayodaśī runs from 19:18 on Fri 16 Apr to 19:31 on Sat 17 Apr and covers 61 of 85 minutes of pradoṣa that evening. It also reaches the next evening for 36 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/beijing/festivals/2004/pradosha-vrata?on=2004-04-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-04-17",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13046,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-04-17T19:30:49+08:00",
          "utc": "2004-04-17T11:30:49Z",
          "ms": 1082201448563.443
        },
        "end": {
          "local": "2004-04-18T20:11:56+08:00",
          "utc": "2004-04-18T12:11:56Z",
          "ms": 1082290315922.4846
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-17T19:30:49+08:00",
          "utc": "2004-04-17T11:30:49Z",
          "ms": 1082201448563.443
        },
        "end": {
          "local": "2004-04-18T20:11:56+08:00",
          "utc": "2004-04-18T12:11:56Z",
          "ms": 1082290315922.4846
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-04-17",
          "window": {
            "start": {
              "local": "2004-04-17T23:49:35+08:00",
              "utc": "2004-04-17T15:49:35Z",
              "ms": 1082216974828.5281
            },
            "end": {
              "local": "2004-04-18T00:37:35+08:00",
              "utc": "2004-04-17T16:37:35Z",
              "ms": 1082219854828.5281
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-04-18",
          "window": {
            "start": {
              "local": "2004-04-18T23:49:22+08:00",
              "utc": "2004-04-18T15:49:22Z",
              "ms": 1082303361718.732
            },
            "end": {
              "local": "2004-04-19T00:37:22+08:00",
              "utc": "2004-04-18T16:37:22Z",
              "ms": 1082306241718.732
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 19:31 on Sat 17 Apr to 20:12 on Sun 18 Apr.",
          "fact": "2004-04-17T11:30:49Z → 2004-04-18T12:11:56Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:50–00:38 on the 17th, 23:49–00:37 on the 18th.",
          "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 17th and 0 of 48 on the 18th.",
          "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 13046 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Saturday 17 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": "2004-04-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Saturday 17 April. Caturdaśī runs from 19:31 on Sat 17 Apr to 20:12 on Sun 18 Apr and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-04-17",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/akshaya-tritiya",
      "festival": "akshaya-tritiya",
      "name": "Akṣaya Tṛtīyā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7684,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2004-04-22T00:57:57+08:00",
          "utc": "2004-04-21T16:57:57Z",
          "ms": 1082566676863.9208
        },
        "end": {
          "local": "2004-04-23T03:17:35+08:00",
          "utc": "2004-04-22T19:17:35Z",
          "ms": 1082661455173.0875
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-22T00:57:57+08:00",
          "utc": "2004-04-21T16:57:57Z",
          "ms": 1082566676863.9208
        },
        "end": {
          "local": "2004-04-23T03:17:35+08:00",
          "utc": "2004-04-22T19:17:35Z",
          "ms": 1082661455173.0875
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2004-04-22",
          "window": {
            "start": {
              "local": "2004-04-22T05:27:03+08:00",
              "utc": "2004-04-21T21:27:03Z",
              "ms": 1082582822504.0364
            },
            "end": {
              "local": "2004-04-22T09:57:51+08:00",
              "utc": "2004-04-22T01:57:51Z",
              "ms": 1082599071044.3865
            }
          },
          "covered_min": 271,
          "window_min": 271,
          "qualifies": true
        },
        {
          "local_date": "2004-04-23",
          "window": {
            "start": {
              "local": "2004-04-23T05:25:39+08:00",
              "utc": "2004-04-22T21:25:39Z",
              "ms": 1082669138904.2635
            },
            "end": {
              "local": "2004-04-23T09:57:16+08:00",
              "utc": "2004-04-23T01:57:16Z",
              "ms": 1082685435574.8143
            }
          },
          "covered_min": 0,
          "window_min": 272,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 00:58 on Thu 22 Apr to 03:18 on Fri 23 Apr.",
          "fact": "2004-04-21T16:57:57Z → 2004-04-22T19:17:35Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:27–09:58 on the 22nd, 05:26–09:57 on the 23rd.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 271 of 271 minutes on the 22nd and 0 of 272 on the 23rd.",
          "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 7684 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Tṛtīyā, Beijing, 2004: Thursday 22 April.",
          "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": "2004-04-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Akṣaya Tṛtīyā 2004 falls on Thursday 22 April. Tṛtīyā runs from 00:58 on Thu 22 Apr to 03:18 on Fri 23 Apr and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/parashurama-jayanti",
      "festival": "parashurama-jayanti",
      "name": "Paraśurāma Jayantī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16541,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2004-04-22T00:57:57+08:00",
          "utc": "2004-04-21T16:57:57Z",
          "ms": 1082566676863.9208
        },
        "end": {
          "local": "2004-04-23T03:17:35+08:00",
          "utc": "2004-04-22T19:17:35Z",
          "ms": 1082661455173.0875
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-22T00:57:57+08:00",
          "utc": "2004-04-21T16:57:57Z",
          "ms": 1082566676863.9208
        },
        "end": {
          "local": "2004-04-23T03:17:35+08:00",
          "utc": "2004-04-22T19:17:35Z",
          "ms": 1082661455173.0875
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-04-21",
          "window": {
            "start": {
              "local": "2004-04-21T18:58:27+08:00",
              "utc": "2004-04-21T10:58:27Z",
              "ms": 1082545107317.2908
            },
            "end": {
              "local": "2004-04-21T20:22:16+08:00",
              "utc": "2004-04-21T12:22:16Z",
              "ms": 1082550136008.8568
            }
          },
          "covered_min": 0,
          "window_min": 84,
          "qualifies": false
        },
        {
          "local_date": "2004-04-22",
          "window": {
            "start": {
              "local": "2004-04-22T18:59:28+08:00",
              "utc": "2004-04-22T10:59:28Z",
              "ms": 1082631568125.0867
            },
            "end": {
              "local": "2004-04-22T20:22:58+08:00",
              "utc": "2004-04-22T12:22:58Z",
              "ms": 1082636577562.3103
            }
          },
          "covered_min": 83,
          "window_min": 83,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 00:58 on Thu 22 Apr to 03:18 on Fri 23 Apr.",
          "fact": "2004-04-21T16:57:57Z → 2004-04-22T19:17:35Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:58–20:22 on the 21st, 18:59–20:23 on the 22nd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pradoṣa. It covers 0 of 84 minutes on the 21st and 83 of 83 on the 22nd.",
          "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 16541 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Jayantī, Beijing, 2004: Thursday 22 April.",
          "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": "2004-04-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Paraśurāma Jayantī 2004 falls on Thursday 22 April. Tṛtīyā runs from 00:58 on Thu 22 Apr to 03:18 on Fri 23 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-04-23",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21606,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-04-23T03:17:35+08:00",
          "utc": "2004-04-22T19:17:35Z",
          "ms": 1082661455173.0875
        },
        "end": {
          "local": "2004-04-24T05:48:47+08:00",
          "utc": "2004-04-23T21:48:47Z",
          "ms": 1082756927441.8989
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-23T03:17:35+08:00",
          "utc": "2004-04-22T19:17:35Z",
          "ms": 1082661455173.0875
        },
        "end": {
          "local": "2004-04-24T05:48:47+08:00",
          "utc": "2004-04-23T21:48:47Z",
          "ms": 1082756927441.8989
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-04-23",
          "window": {
            "start": {
              "local": "2004-04-23T11:49:04+08:00",
              "utc": "2004-04-23T03:49:04Z",
              "ms": 1082692143910.0896
            },
            "end": {
              "local": "2004-04-23T12:37:04+08:00",
              "utc": "2004-04-23T04:37:04Z",
              "ms": 1082695023910.0896
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-04-24",
          "window": {
            "start": {
              "local": "2004-04-24T11:48:53+08:00",
              "utc": "2004-04-24T03:48:53Z",
              "ms": 1082778532952.2346
            },
            "end": {
              "local": "2004-04-24T12:36:53+08:00",
              "utc": "2004-04-24T04:36:53Z",
              "ms": 1082781412952.2346
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:18 on Fri 23 Apr to 05:49 on Sat 24 Apr.",
          "fact": "2004-04-22T19:17:35Z → 2004-04-23T21:48:47Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 23rd, 11:49–12:37 on the 24th.",
          "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 23rd and 0 of 48 on the 24th.",
          "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 21606 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Friday 23 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": "2004-04-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Friday 23 April. Caturthī runs from 03:18 on Fri 23 Apr to 05:49 on Sat 24 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-04-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shankara-jayanti",
      "festival": "shankara-jayanti",
      "name": "Śaṅkara Jayantī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12431,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2004-04-24T05:48:47+08:00",
          "utc": "2004-04-23T21:48:47Z",
          "ms": 1082756927441.8989
        },
        "end": {
          "local": "2004-04-25T08:21:31+08:00",
          "utc": "2004-04-25T00:21:31Z",
          "ms": 1082852491371.0292
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-24T05:48:47+08:00",
          "utc": "2004-04-23T21:48:47Z",
          "ms": 1082756927441.8989
        },
        "end": {
          "local": "2004-04-25T08:21:31+08:00",
          "utc": "2004-04-25T00:21:31Z",
          "ms": 1082852491371.0292
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-04-24",
          "window": {
            "start": {
              "local": "2004-04-24T11:48:53+08:00",
              "utc": "2004-04-24T03:48:53Z",
              "ms": 1082778532952.2346
            },
            "end": {
              "local": "2004-04-24T12:36:53+08:00",
              "utc": "2004-04-24T04:36:53Z",
              "ms": 1082781412952.2346
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-04-25",
          "window": {
            "start": {
              "local": "2004-04-25T11:48:42+08:00",
              "utc": "2004-04-25T03:48:42Z",
              "ms": 1082864922449.8286
            },
            "end": {
              "local": "2004-04-25T12:36:42+08:00",
              "utc": "2004-04-25T04:36:42Z",
              "ms": 1082867802449.8286
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 05:49 on Sat 24 Apr to 08:22 on Sun 25 Apr.",
          "fact": "2004-04-23T21:48:47Z → 2004-04-25T00:21:31Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 24th, 11:49–12:37 on the 25th.",
          "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 24th and 0 of 48 on the 25th.",
          "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 12431 s"
        },
        {
          "step": "ruling",
          "text": "Śaṅkara Jayantī, Beijing, 2004: Saturday 24 April.",
          "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": "2004-04-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śaṅkara Jayantī 2004 falls on Saturday 24 April. Pañcamī runs from 05:49 on Sat 24 Apr to 08:22 on Sun 25 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/gangotpatti",
      "festival": "gangotpatti",
      "name": "Gaṅgotpatti",
      "everyday": "Ganga Saptami",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-04-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 471,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2004-04-26T10:44:03+08:00",
          "utc": "2004-04-26T02:44:03Z",
          "ms": 1082947442667.5844
        },
        "end": {
          "local": "2004-04-27T12:44:14+08:00",
          "utc": "2004-04-27T04:44:14Z",
          "ms": 1083041054212.7664
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-26T10:44:03+08:00",
          "utc": "2004-04-26T02:44:03Z",
          "ms": 1082947442667.5844
        },
        "end": {
          "local": "2004-04-27T12:44:14+08:00",
          "utc": "2004-04-27T04:44:14Z",
          "ms": 1083041054212.7664
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-04-26",
          "window": {
            "start": {
              "local": "2004-04-26T11:48:32+08:00",
              "utc": "2004-04-26T03:48:32Z",
              "ms": 1082951312411.5377
            },
            "end": {
              "local": "2004-04-26T12:36:32+08:00",
              "utc": "2004-04-26T04:36:32Z",
              "ms": 1082954192411.5377
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-04-27",
          "window": {
            "start": {
              "local": "2004-04-27T11:48:23+08:00",
              "utc": "2004-04-27T03:48:23Z",
              "ms": 1083037702845.8813
            },
            "end": {
              "local": "2004-04-27T12:36:23+08:00",
              "utc": "2004-04-27T04:36:23Z",
              "ms": 1083040582845.8813
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 10:44 on Mon 26 Apr to 12:44 on Tue 27 Apr.",
          "fact": "2004-04-26T02:44:03Z → 2004-04-27T04:44:14Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 26th, 11:48–12:36 on the 27th.",
          "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 26th and 48 of 48 on the 27th.",
          "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 471 s"
        },
        {
          "step": "ruling",
          "text": "Gaṅgotpatti, Beijing, 2004: Monday 26 April.",
          "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": "2004-04-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-04-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Gaṅgotpatti (Ganga Saptami) 2004 falls on Monday 26 April. Saptamī runs from 10:44 on Mon 26 Apr to 12:44 on Tue 27 Apr 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/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-05-01",
      "festival": "ekadashi",
      "name": "Mohinī Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32006,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-04-30T14:56:08+08:00",
          "utc": "2004-04-30T06:56:08Z",
          "ms": 1083308168347.1486
        },
        "end": {
          "local": "2004-05-01T14:08:32+08:00",
          "utc": "2004-05-01T06:08:32Z",
          "ms": 1083391712175.7961
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-04-30T14:56:08+08:00",
          "utc": "2004-04-30T06:56:08Z",
          "ms": 1083308168347.1486
        },
        "end": {
          "local": "2004-05-01T14:08:32+08:00",
          "utc": "2004-05-01T06:08:32Z",
          "ms": 1083391712175.7961
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-04-30",
          "window": {
            "start": {
              "local": "2004-04-30T05:16:21+08:00",
              "utc": "2004-04-29T21:16:21Z",
              "ms": 1083273381219.3239
            },
            "end": {
              "local": "2004-04-30T05:16:21+08:00",
              "utc": "2004-04-29T21:16:21Z",
              "ms": 1083273381219.3239
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-05-01",
          "window": {
            "start": {
              "local": "2004-05-01T05:15:06+08:00",
              "utc": "2004-04-30T21:15:06Z",
              "ms": 1083359705850.6621
            },
            "end": {
              "local": "2004-05-01T05:15:06+08:00",
              "utc": "2004-04-30T21:15:06Z",
              "ms": 1083359705850.6621
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 14:56 on Fri 30 Apr to 14:09 on Sat 1 May.",
          "fact": "2004-04-30T06:56:08Z → 2004-05-01T06:08:32Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:16 on the 30th and 05:15 on the 1st.",
          "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 1st.",
          "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 32006 s"
        },
        {
          "step": "ruling",
          "text": "Mohinī Ekādaśī, Beijing, 2004: Saturday 1 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": "2004-05-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Mohinī Ekādaśī 2004 falls on Saturday 1 May. Ekādaśī runs from 14:56 on Fri 30 Apr to 14:09 on Sat 1 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-05-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/parashurama-dvadashi",
      "festival": "parashurama-dvadashi",
      "name": "Paraśurāma Dvādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-02",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 42,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2004-05-01T14:08:32+08:00",
          "utc": "2004-05-01T06:08:32Z",
          "ms": 1083391712175.7961
        },
        "end": {
          "local": "2004-05-02T12:36:24+08:00",
          "utc": "2004-05-02T04:36:24Z",
          "ms": 1083472584322.5112
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-01T14:08:32+08:00",
          "utc": "2004-05-01T06:08:32Z",
          "ms": 1083391712175.7961
        },
        "end": {
          "local": "2004-05-02T12:36:24+08:00",
          "utc": "2004-05-02T04:36:24Z",
          "ms": 1083472584322.5112
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-01",
          "window": {
            "start": {
              "local": "2004-05-01T11:47:49+08:00",
              "utc": "2004-05-01T03:47:49Z",
              "ms": 1083383269477.6858
            },
            "end": {
              "local": "2004-05-01T12:35:49+08:00",
              "utc": "2004-05-01T04:35:49Z",
              "ms": 1083386149477.6858
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-05-02",
          "window": {
            "start": {
              "local": "2004-05-02T11:47:42+08:00",
              "utc": "2004-05-02T03:47:42Z",
              "ms": 1083469662402.0625
            },
            "end": {
              "local": "2004-05-02T12:35:42+08:00",
              "utc": "2004-05-02T04:35:42Z",
              "ms": 1083472542402.0625
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 14:09 on Sat 1 May to 12:36 on Sun 2 May.",
          "fact": "2004-05-01T06:08:32Z → 2004-05-02T04:36:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 1st, 11:48–12:36 on the 2nd.",
          "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 1st and 48 of 48 on the 2nd.",
          "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 42 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Dvādaśī, Beijing, 2004: Sunday 2 May.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2004-05-02",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Paraśurāma Dvādaśī 2004 falls on Sunday 2 May. Dvādaśī runs from 14:09 on Sat 1 May to 12:36 on Sun 2 May and covers all of madhyāhna that midday. It is 0 min 42 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/rukmini-dvadashi",
      "festival": "rukmini-dvadashi",
      "name": "Rukmiṇī Dvādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-02",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 42,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2004-05-01T14:08:32+08:00",
          "utc": "2004-05-01T06:08:32Z",
          "ms": 1083391712175.7961
        },
        "end": {
          "local": "2004-05-02T12:36:24+08:00",
          "utc": "2004-05-02T04:36:24Z",
          "ms": 1083472584322.5112
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-01T14:08:32+08:00",
          "utc": "2004-05-01T06:08:32Z",
          "ms": 1083391712175.7961
        },
        "end": {
          "local": "2004-05-02T12:36:24+08:00",
          "utc": "2004-05-02T04:36:24Z",
          "ms": 1083472584322.5112
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-01",
          "window": {
            "start": {
              "local": "2004-05-01T11:47:49+08:00",
              "utc": "2004-05-01T03:47:49Z",
              "ms": 1083383269477.6858
            },
            "end": {
              "local": "2004-05-01T12:35:49+08:00",
              "utc": "2004-05-01T04:35:49Z",
              "ms": 1083386149477.6858
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-05-02",
          "window": {
            "start": {
              "local": "2004-05-02T11:47:42+08:00",
              "utc": "2004-05-02T03:47:42Z",
              "ms": 1083469662402.0625
            },
            "end": {
              "local": "2004-05-02T12:35:42+08:00",
              "utc": "2004-05-02T04:35:42Z",
              "ms": 1083472542402.0625
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 14:09 on Sat 1 May to 12:36 on Sun 2 May.",
          "fact": "2004-05-01T06:08:32Z → 2004-05-02T04:36:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 1st, 11:48–12:36 on the 2nd.",
          "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 1st and 48 of 48 on the 2nd.",
          "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 42 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Rukmiṇī Dvādaśī, Beijing, 2004: Sunday 2 May.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2004-05-02",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Rukmiṇī Dvādaśī 2004 falls on Sunday 2 May. Dvādaśī runs from 14:09 on Sat 1 May to 12:36 on Sun 2 May and covers all of madhyāhna that midday. It is 0 min 42 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-05-02",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23589,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-05-02T12:36:24+08:00",
          "utc": "2004-05-02T04:36:24Z",
          "ms": 1083472584322.5112
        },
        "end": {
          "local": "2004-05-03T10:24:55+08:00",
          "utc": "2004-05-03T02:24:55Z",
          "ms": 1083551095200.2753
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-02T12:36:24+08:00",
          "utc": "2004-05-02T04:36:24Z",
          "ms": 1083472584322.5112
        },
        "end": {
          "local": "2004-05-03T10:24:55+08:00",
          "utc": "2004-05-03T02:24:55Z",
          "ms": 1083551095200.2753
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-05-02",
          "window": {
            "start": {
              "local": "2004-05-02T19:09:33+08:00",
              "utc": "2004-05-02T11:09:33Z",
              "ms": 1083496173152.5292
            },
            "end": {
              "local": "2004-05-02T20:29:58+08:00",
              "utc": "2004-05-02T12:29:58Z",
              "ms": 1083500997886.1045
            }
          },
          "covered_min": 80,
          "window_min": 80,
          "qualifies": true
        },
        {
          "local_date": "2004-05-03",
          "window": {
            "start": {
              "local": "2004-05-03T19:10:33+08:00",
              "utc": "2004-05-03T11:10:33Z",
              "ms": 1083582633048.0839
            },
            "end": {
              "local": "2004-05-03T20:30:40+08:00",
              "utc": "2004-05-03T12:30:40Z",
              "ms": 1083587440227.1633
            }
          },
          "covered_min": 0,
          "window_min": 80,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 12:36 on Sun 2 May to 10:25 on Mon 3 May.",
          "fact": "2004-05-02T04:36:24Z → 2004-05-03T02:24:55Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:10–20:30 on the 2nd, 19:11–20:31 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 80 of 80 minutes on the 2nd and 0 of 80 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 23589 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Sunday 2 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": "2004-05-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Sunday 2 May. Trayodaśī runs from 12:36 on Sun 2 May to 10:25 on Mon 3 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-05-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/nrisimha-chaturdashi",
      "festival": "nrisimha-chaturdashi",
      "name": "Nṛsiṃha Caturdaśī",
      "everyday": "Narasimha Jayanti",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31538,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-05-03T10:24:55+08:00",
          "utc": "2004-05-03T02:24:55Z",
          "ms": 1083551095200.2753
        },
        "end": {
          "local": "2004-05-04T07:41:10+08:00",
          "utc": "2004-05-03T23:41:10Z",
          "ms": 1083627669950.0184
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-03T10:24:55+08:00",
          "utc": "2004-05-03T02:24:55Z",
          "ms": 1083551095200.2753
        },
        "end": {
          "local": "2004-05-04T07:41:10+08:00",
          "utc": "2004-05-03T23:41:10Z",
          "ms": 1083627669950.0184
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-05-03",
          "window": {
            "start": {
              "local": "2004-05-03T19:10:33+08:00",
              "utc": "2004-05-03T11:10:33Z",
              "ms": 1083582633048.0839
            },
            "end": {
              "local": "2004-05-03T20:30:40+08:00",
              "utc": "2004-05-03T12:30:40Z",
              "ms": 1083587440227.1633
            }
          },
          "covered_min": 80,
          "window_min": 80,
          "qualifies": true
        },
        {
          "local_date": "2004-05-04",
          "window": {
            "start": {
              "local": "2004-05-04T19:11:33+08:00",
              "utc": "2004-05-04T11:11:33Z",
              "ms": 1083669092778.4249
            },
            "end": {
              "local": "2004-05-04T20:31:23+08:00",
              "utc": "2004-05-04T12:31:23Z",
              "ms": 1083673882593.8928
            }
          },
          "covered_min": 0,
          "window_min": 80,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 10:25 on Mon 3 May to 07:41 on Tue 4 May.",
          "fact": "2004-05-03T02:24:55Z → 2004-05-03T23:41:10Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:11–20:31 on the 3rd, 19:12–20:31 on the 4th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during pradoṣa. It covers 80 of 80 minutes on the 3rd and 0 of 80 on the 4th.",
          "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 31538 s"
        },
        {
          "step": "ruling",
          "text": "Nṛsiṃha Caturdaśī, Beijing, 2004: Monday 3 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": "2004-05-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2004 falls on Monday 3 May. Caturdaśī runs from 10:25 on Mon 3 May to 07:41 on Tue 4 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/buddha-purnima",
      "festival": "buddha-purnima",
      "name": "Buddha Pūrṇimā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14780,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-05-04T07:41:10+08:00",
          "utc": "2004-05-03T23:41:10Z",
          "ms": 1083627669950.0184
        },
        "end": {
          "local": "2004-05-05T04:33:27+08:00",
          "utc": "2004-05-04T20:33:27Z",
          "ms": 1083702806612.8502
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-04T07:41:10+08:00",
          "utc": "2004-05-03T23:41:10Z",
          "ms": 1083627669950.0184
        },
        "end": {
          "local": "2004-05-05T04:33:27+08:00",
          "utc": "2004-05-04T20:33:27Z",
          "ms": 1083702806612.8502
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-04",
          "window": {
            "start": {
              "local": "2004-05-04T11:47:30+08:00",
              "utc": "2004-05-04T03:47:30Z",
              "ms": 1083642449834.8022
            },
            "end": {
              "local": "2004-05-04T12:35:30+08:00",
              "utc": "2004-05-04T04:35:30Z",
              "ms": 1083645329834.8022
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-05-05",
          "window": {
            "start": {
              "local": "2004-05-05T11:47:24+08:00",
              "utc": "2004-05-05T03:47:24Z",
              "ms": 1083728844362.4939
            },
            "end": {
              "local": "2004-05-05T12:35:24+08:00",
              "utc": "2004-05-05T04:35:24Z",
              "ms": 1083731724362.4939
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 07:41 on Tue 4 May to 04:33 on Wed 5 May.",
          "fact": "2004-05-03T23:41:10Z → 2004-05-04T20:33:27Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 4th, 11:47–12:35 on the 5th.",
          "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 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: unstated → only-day · margin 14780 s"
        },
        {
          "step": "ruling",
          "text": "Buddha Pūrṇimā, Beijing, 2004: Tuesday 4 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": "2004-05-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Buddha Pūrṇimā 2004 falls on Tuesday 4 May. Pūrṇimā runs from 07:41 on Tue 4 May to 04:33 on Wed 5 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sampat-gauri-vrata",
      "festival": "sampat-gauri-vrata",
      "name": "Sampat Gaurī Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14780,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-05-04T07:41:10+08:00",
          "utc": "2004-05-03T23:41:10Z",
          "ms": 1083627669950.0184
        },
        "end": {
          "local": "2004-05-05T04:33:27+08:00",
          "utc": "2004-05-04T20:33:27Z",
          "ms": 1083702806612.8502
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-04T07:41:10+08:00",
          "utc": "2004-05-03T23:41:10Z",
          "ms": 1083627669950.0184
        },
        "end": {
          "local": "2004-05-05T04:33:27+08:00",
          "utc": "2004-05-04T20:33:27Z",
          "ms": 1083702806612.8502
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-04",
          "window": {
            "start": {
              "local": "2004-05-04T11:47:30+08:00",
              "utc": "2004-05-04T03:47:30Z",
              "ms": 1083642449834.8022
            },
            "end": {
              "local": "2004-05-04T12:35:30+08:00",
              "utc": "2004-05-04T04:35:30Z",
              "ms": 1083645329834.8022
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-05-05",
          "window": {
            "start": {
              "local": "2004-05-05T11:47:24+08:00",
              "utc": "2004-05-05T03:47:24Z",
              "ms": 1083728844362.4939
            },
            "end": {
              "local": "2004-05-05T12:35:24+08:00",
              "utc": "2004-05-05T04:35:24Z",
              "ms": 1083731724362.4939
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 07:41 on Tue 4 May to 04:33 on Wed 5 May.",
          "fact": "2004-05-03T23:41:10Z → 2004-05-04T20:33:27Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 4th, 11:47–12:35 on the 5th.",
          "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 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 14780 s"
        },
        {
          "step": "ruling",
          "text": "Sampat Gaurī Vrata, Beijing, 2004: Tuesday 4 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": "2004-05-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Sampat Gaurī Vrata 2004 falls on Tuesday 4 May. Pūrṇimā runs from 07:41 on Tue 4 May to 04:33 on Wed 5 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-05-07",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15633,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-05-07T18:16:51+08:00",
          "utc": "2004-05-07T10:16:51Z",
          "ms": 1083925010712.7275
        },
        "end": {
          "local": "2004-05-08T15:03:27+08:00",
          "utc": "2004-05-08T07:03:27Z",
          "ms": 1083999806521.3322
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-07T18:16:51+08:00",
          "utc": "2004-05-07T10:16:51Z",
          "ms": 1083925010712.7275
        },
        "end": {
          "local": "2004-05-08T15:03:27+08:00",
          "utc": "2004-05-08T07:03:27Z",
          "ms": 1083999806521.3322
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-05-07",
          "window": {
            "start": {
              "local": "2004-05-07T22:37:24+08:00",
              "utc": "2004-05-07T14:37:24Z",
              "ms": 1083940643750.0192
            },
            "end": {
              "local": "2004-05-07T22:37:24+08:00",
              "utc": "2004-05-07T14:37:24Z",
              "ms": 1083940643750.0192
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-05-08",
          "window": {
            "start": {
              "local": "2004-05-08T23:44:48+08:00",
              "utc": "2004-05-08T15:44:48Z",
              "ms": 1084031088428.0742
            },
            "end": {
              "local": "2004-05-08T23:44:48+08:00",
              "utc": "2004-05-08T15:44:48Z",
              "ms": 1084031088428.0742
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 18:17 on Fri 7 May to 15:03 on Sat 8 May.",
          "fact": "2004-05-07T10:16:51Z → 2004-05-08T07:03:27Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:37 on the 7th and 23:45 on the 8th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.",
          "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 15633 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Friday 7 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": "2004-05-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Friday 7 May. Caturthī runs from 18:17 on Fri 7 May to 15:03 on Sat 8 May and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-05-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-05-15",
      "festival": "ekadashi",
      "name": "Aparā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2570,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-05-14T05:43:35+08:00",
          "utc": "2004-05-13T21:43:35Z",
          "ms": 1084484614733.133
        },
        "end": {
          "local": "2004-05-15T06:14:37+08:00",
          "utc": "2004-05-14T22:14:37Z",
          "ms": 1084572876590.7256
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-14T05:43:35+08:00",
          "utc": "2004-05-13T21:43:35Z",
          "ms": 1084484614733.133
        },
        "end": {
          "local": "2004-05-15T06:14:37+08:00",
          "utc": "2004-05-14T22:14:37Z",
          "ms": 1084572876590.7256
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-05-14",
          "window": {
            "start": {
              "local": "2004-05-14T05:00:44+08:00",
              "utc": "2004-05-13T21:00:44Z",
              "ms": 1084482044239.7565
            },
            "end": {
              "local": "2004-05-14T05:00:44+08:00",
              "utc": "2004-05-13T21:00:44Z",
              "ms": 1084482044239.7565
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-05-15",
          "window": {
            "start": {
              "local": "2004-05-15T04:59:48+08:00",
              "utc": "2004-05-14T20:59:48Z",
              "ms": 1084568388155.6736
            },
            "end": {
              "local": "2004-05-15T04:59:48+08:00",
              "utc": "2004-05-14T20:59:48Z",
              "ms": 1084568388155.6736
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 05:44 on Fri 14 May to 06:15 on Sat 15 May.",
          "fact": "2004-05-13T21:43:35Z → 2004-05-14T22:14:37Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:01 on the 14th and 05:00 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 2570 s"
        },
        {
          "step": "ruling",
          "text": "Aparā Ekādaśī, Beijing, 2004: Saturday 15 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": "2004-05-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Aparā Ekādaśī 2004 falls on Saturday 15 May. Ekādaśī runs from 05:44 on Fri 14 May to 06:15 on Sat 15 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-05-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-05-16",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38176,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-05-16T07:17:27+08:00",
          "utc": "2004-05-15T23:17:27Z",
          "ms": 1084663047420.4402
        },
        "end": {
          "local": "2004-05-17T08:47:50+08:00",
          "utc": "2004-05-17T00:47:50Z",
          "ms": 1084754869863.705
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-16T07:17:27+08:00",
          "utc": "2004-05-15T23:17:27Z",
          "ms": 1084663047420.4402
        },
        "end": {
          "local": "2004-05-17T08:47:50+08:00",
          "utc": "2004-05-17T00:47:50Z",
          "ms": 1084754869863.705
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-05-16",
          "window": {
            "start": {
              "local": "2004-05-16T19:23:10+08:00",
              "utc": "2004-05-16T11:23:10Z",
              "ms": 1084706589933.2988
            },
            "end": {
              "local": "2004-05-16T20:39:49+08:00",
              "utc": "2004-05-16T12:39:49Z",
              "ms": 1084711188716.8601
            }
          },
          "covered_min": 77,
          "window_min": 77,
          "qualifies": true
        },
        {
          "local_date": "2004-05-17",
          "window": {
            "start": {
              "local": "2004-05-17T19:24:06+08:00",
              "utc": "2004-05-17T11:24:06Z",
              "ms": 1084793045571.2781
            },
            "end": {
              "local": "2004-05-17T20:40:30+08:00",
              "utc": "2004-05-17T12:40:30Z",
              "ms": 1084797630107.8988
            }
          },
          "covered_min": 0,
          "window_min": 76,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 07:17 on Sun 16 May to 08:48 on Mon 17 May.",
          "fact": "2004-05-15T23:17:27Z → 2004-05-17T00:47:50Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:23–20:40 on the 16th, 19:24–20:41 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 77 of 77 minutes on the 16th and 0 of 76 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 38176 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Sunday 16 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": "2004-05-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Sunday 16 May. Trayodaśī runs from 07:17 on Sun 16 May to 08:48 on Mon 17 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-05-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-05-17",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29594,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-05-17T08:47:50+08:00",
          "utc": "2004-05-17T00:47:50Z",
          "ms": 1084754869863.705
        },
        "end": {
          "local": "2004-05-18T10:40:59+08:00",
          "utc": "2004-05-18T02:40:59Z",
          "ms": 1084848059143.1625
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-17T08:47:50+08:00",
          "utc": "2004-05-17T00:47:50Z",
          "ms": 1084754869863.705
        },
        "end": {
          "local": "2004-05-18T10:40:59+08:00",
          "utc": "2004-05-18T02:40:59Z",
          "ms": 1084848059143.1625
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-05-16",
          "window": {
            "start": {
              "local": "2004-05-16T23:46:35+08:00",
              "utc": "2004-05-16T15:46:35Z",
              "ms": 1084722395371.6538
            },
            "end": {
              "local": "2004-05-17T00:34:35+08:00",
              "utc": "2004-05-16T16:34:35Z",
              "ms": 1084725275371.6538
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-05-17",
          "window": {
            "start": {
              "local": "2004-05-17T23:46:38+08:00",
              "utc": "2004-05-17T15:46:38Z",
              "ms": 1084808797583.6058
            },
            "end": {
              "local": "2004-05-18T00:34:38+08:00",
              "utc": "2004-05-17T16:34:38Z",
              "ms": 1084811677583.6058
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 08:48 on Mon 17 May to 10:41 on Tue 18 May.",
          "fact": "2004-05-17T00:47:50Z → 2004-05-18T02:40:59Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:47–00:35 on the 16th, 23:47–00:35 on the 17th.",
          "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 16th and 48 of 48 on the 17th.",
          "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 29594 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Monday 17 May.",
          "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": "2004-05-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Monday 17 May. Caturdaśī runs from 08:48 on Mon 17 May to 10:41 on Tue 18 May and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-05-17",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/rambha-tritiya",
      "festival": "rambha-tritiya",
      "name": "Rambhā Tṛtīyā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18630,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2004-05-21T17:45:44+08:00",
          "utc": "2004-05-21T09:45:44Z",
          "ms": 1085132744258.7557
        },
        "end": {
          "local": "2004-05-22T20:16:13+08:00",
          "utc": "2004-05-22T12:16:13Z",
          "ms": 1085228173198.6891
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-21T17:45:44+08:00",
          "utc": "2004-05-21T09:45:44Z",
          "ms": 1085132744258.7557
        },
        "end": {
          "local": "2004-05-22T20:16:13+08:00",
          "utc": "2004-05-22T12:16:13Z",
          "ms": 1085228173198.6891
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-21",
          "window": {
            "start": {
              "local": "2004-05-21T11:47:14+08:00",
              "utc": "2004-05-21T03:47:14Z",
              "ms": 1085111234187.2456
            },
            "end": {
              "local": "2004-05-21T12:35:14+08:00",
              "utc": "2004-05-21T04:35:14Z",
              "ms": 1085114114187.2456
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-05-22",
          "window": {
            "start": {
              "local": "2004-05-22T11:47:18+08:00",
              "utc": "2004-05-22T03:47:18Z",
              "ms": 1085197638246.647
            },
            "end": {
              "local": "2004-05-22T12:35:18+08:00",
              "utc": "2004-05-22T04:35:18Z",
              "ms": 1085200518246.647
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 17:46 on Fri 21 May to 20:16 on Sat 22 May.",
          "fact": "2004-05-21T09:45:44Z → 2004-05-22T12:16:13Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 21st, 11:47–12:35 on the 22nd.",
          "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 21st and 48 of 48 on the 22nd.",
          "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 18630 s"
        },
        {
          "step": "ruling",
          "text": "Rambhā Tṛtīyā, Beijing, 2004: Saturday 22 May.",
          "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": "2004-05-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Rambhā Tṛtīyā 2004 falls on Saturday 22 May. Tṛtīyā runs from 17:46 on Fri 21 May to 20:16 on Sat 22 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-05-23",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27655,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-05-22T20:16:13+08:00",
          "utc": "2004-05-22T12:16:13Z",
          "ms": 1085228173198.6891
        },
        "end": {
          "local": "2004-05-23T22:39:16+08:00",
          "utc": "2004-05-23T14:39:16Z",
          "ms": 1085323156048.0769
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-22T20:16:13+08:00",
          "utc": "2004-05-22T12:16:13Z",
          "ms": 1085228173198.6891
        },
        "end": {
          "local": "2004-05-23T22:39:16+08:00",
          "utc": "2004-05-23T14:39:16Z",
          "ms": 1085323156048.0769
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-22",
          "window": {
            "start": {
              "local": "2004-05-22T11:47:18+08:00",
              "utc": "2004-05-22T03:47:18Z",
              "ms": 1085197638246.647
            },
            "end": {
              "local": "2004-05-22T12:35:18+08:00",
              "utc": "2004-05-22T04:35:18Z",
              "ms": 1085200518246.647
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-05-23",
          "window": {
            "start": {
              "local": "2004-05-23T11:47:23+08:00",
              "utc": "2004-05-23T03:47:23Z",
              "ms": 1085284042807.5002
            },
            "end": {
              "local": "2004-05-23T12:35:23+08:00",
              "utc": "2004-05-23T04:35:23Z",
              "ms": 1085286922807.5002
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:16 on Sat 22 May to 22:39 on Sun 23 May.",
          "fact": "2004-05-22T12:16:13Z → 2004-05-23T14:39:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 22nd, 11:47–12:35 on the 23rd.",
          "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 22nd and 48 of 48 on the 23rd.",
          "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 27655 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Sunday 23 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": "2004-05-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Sunday 23 May. Caturthī runs from 20:16 on Sat 22 May to 22:39 on Sun 23 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-05-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/aranya-gauri-vrata",
      "festival": "aranya-gauri-vrata",
      "name": "Araṇya Gaurī Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33549,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2004-05-25T00:46:20+08:00",
          "utc": "2004-05-24T16:46:20Z",
          "ms": 1085417180411.4386
        },
        "end": {
          "local": "2004-05-26T02:28:31+08:00",
          "utc": "2004-05-25T18:28:31Z",
          "ms": 1085509710583.4672
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-25T00:46:20+08:00",
          "utc": "2004-05-24T16:46:20Z",
          "ms": 1085417180411.4386
        },
        "end": {
          "local": "2004-05-26T02:28:31+08:00",
          "utc": "2004-05-25T18:28:31Z",
          "ms": 1085509710583.4672
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-25",
          "window": {
            "start": {
              "local": "2004-05-25T11:47:33+08:00",
              "utc": "2004-05-25T03:47:33Z",
              "ms": 1085456853383.8098
            },
            "end": {
              "local": "2004-05-25T12:35:33+08:00",
              "utc": "2004-05-25T04:35:33Z",
              "ms": 1085459733383.8098
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-05-26",
          "window": {
            "start": {
              "local": "2004-05-26T11:47:39+08:00",
              "utc": "2004-05-26T03:47:39Z",
              "ms": 1085543259373.3701
            },
            "end": {
              "local": "2004-05-26T12:35:39+08:00",
              "utc": "2004-05-26T04:35:39Z",
              "ms": 1085546139373.3701
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 00:46 on Tue 25 May to 02:29 on Wed 26 May.",
          "fact": "2004-05-24T16:46:20Z → 2004-05-25T18:28:31Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 25th, 11:48–12:36 on the 26th.",
          "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 25th and 0 of 48 on the 26th.",
          "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 33549 s"
        },
        {
          "step": "ruling",
          "text": "Araṇya Gaurī Vrata, Beijing, 2004: Tuesday 25 May.",
          "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": "2004-05-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Araṇya Gaurī Vrata 2004 falls on Tuesday 25 May. Ṣaṣṭhī runs from 00:46 on Tue 25 May to 02:29 on Wed 26 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/skanda-shashthi-jyaishtha",
      "festival": "skanda-shashthi-jyaishtha",
      "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33549,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2004-05-25T00:46:20+08:00",
          "utc": "2004-05-24T16:46:20Z",
          "ms": 1085417180411.4386
        },
        "end": {
          "local": "2004-05-26T02:28:31+08:00",
          "utc": "2004-05-25T18:28:31Z",
          "ms": 1085509710583.4672
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-25T00:46:20+08:00",
          "utc": "2004-05-24T16:46:20Z",
          "ms": 1085417180411.4386
        },
        "end": {
          "local": "2004-05-26T02:28:31+08:00",
          "utc": "2004-05-25T18:28:31Z",
          "ms": 1085509710583.4672
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-25",
          "window": {
            "start": {
              "local": "2004-05-25T11:47:33+08:00",
              "utc": "2004-05-25T03:47:33Z",
              "ms": 1085456853383.8098
            },
            "end": {
              "local": "2004-05-25T12:35:33+08:00",
              "utc": "2004-05-25T04:35:33Z",
              "ms": 1085459733383.8098
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-05-26",
          "window": {
            "start": {
              "local": "2004-05-26T11:47:39+08:00",
              "utc": "2004-05-26T03:47:39Z",
              "ms": 1085543259373.3701
            },
            "end": {
              "local": "2004-05-26T12:35:39+08:00",
              "utc": "2004-05-26T04:35:39Z",
              "ms": 1085546139373.3701
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 00:46 on Tue 25 May to 02:29 on Wed 26 May.",
          "fact": "2004-05-24T16:46:20Z → 2004-05-25T18:28:31Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 25th, 11:48–12:36 on the 26th.",
          "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 25th and 0 of 48 on the 26th.",
          "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 33549 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Beijing, 2004: Tuesday 25 May.",
          "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": "2004-05-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2004 falls on Tuesday 25 May. Ṣaṣṭhī runs from 00:46 on Tue 25 May to 02:29 on Wed 26 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-05-30",
      "festival": "ekadashi",
      "name": "Nirjalā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7301,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-05-30T02:47:30+08:00",
          "utc": "2004-05-29T18:47:30Z",
          "ms": 1085856450138.8689
        },
        "end": {
          "local": "2004-05-31T01:00:25+08:00",
          "utc": "2004-05-30T17:00:25Z",
          "ms": 1085936425301.4324
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-30T02:47:30+08:00",
          "utc": "2004-05-29T18:47:30Z",
          "ms": 1085856450138.8689
        },
        "end": {
          "local": "2004-05-31T01:00:25+08:00",
          "utc": "2004-05-30T17:00:25Z",
          "ms": 1085936425301.4324
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-05-30",
          "window": {
            "start": {
              "local": "2004-05-30T04:49:11+08:00",
              "utc": "2004-05-29T20:49:11Z",
              "ms": 1085863750833.8206
            },
            "end": {
              "local": "2004-05-30T04:49:11+08:00",
              "utc": "2004-05-29T20:49:11Z",
              "ms": 1085863750833.8206
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-05-31",
          "window": {
            "start": {
              "local": "2004-05-31T04:48:43+08:00",
              "utc": "2004-05-30T20:48:43Z",
              "ms": 1085950122778.7313
            },
            "end": {
              "local": "2004-05-31T04:48:43+08:00",
              "utc": "2004-05-30T20:48:43Z",
              "ms": 1085950122778.7313
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 02:48 on Sun 30 May to 01:00 on Mon 31 May.",
          "fact": "2004-05-29T18:47:30Z → 2004-05-30T17:00:25Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 04:49 on the 30th and 04:49 on the 31st.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 30th and is not 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 7301 s"
        },
        {
          "step": "ruling",
          "text": "Nirjalā Ekādaśī, Beijing, 2004: Sunday 30 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": "2004-05-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Nirjalā Ekādaśī 2004 falls on Sunday 30 May. Ekādaśī runs from 02:48 on Sun 30 May to 01:00 on Mon 31 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-05-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shri-rama-dvadashi",
      "festival": "shri-rama-dvadashi",
      "name": "Śrī Rāma Dvādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35794,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2004-05-31T01:00:25+08:00",
          "utc": "2004-05-30T17:00:25Z",
          "ms": 1085936425301.4324
        },
        "end": {
          "local": "2004-05-31T22:32:50+08:00",
          "utc": "2004-05-31T14:32:50Z",
          "ms": 1086013969923.5846
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-31T01:00:25+08:00",
          "utc": "2004-05-30T17:00:25Z",
          "ms": 1085936425301.4324
        },
        "end": {
          "local": "2004-05-31T22:32:50+08:00",
          "utc": "2004-05-31T14:32:50Z",
          "ms": 1086013969923.5846
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-05-30",
          "window": {
            "start": {
              "local": "2004-05-30T11:48:08+08:00",
              "utc": "2004-05-30T03:48:08Z",
              "ms": 1085888887695.2661
            },
            "end": {
              "local": "2004-05-30T12:36:08+08:00",
              "utc": "2004-05-30T04:36:08Z",
              "ms": 1085891767695.2661
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-05-31",
          "window": {
            "start": {
              "local": "2004-05-31T11:48:16+08:00",
              "utc": "2004-05-31T03:48:16Z",
              "ms": 1085975295800.3906
            },
            "end": {
              "local": "2004-05-31T12:36:16+08:00",
              "utc": "2004-05-31T04:36:16Z",
              "ms": 1085978175800.3906
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 01:00 on Mon 31 May to 22:33 on Mon 31 May.",
          "fact": "2004-05-30T17:00:25Z → 2004-05-31T14:32:50Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 30th, 11:48–12:36 on the 31st.",
          "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 30th and 48 of 48 on the 31st.",
          "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 35794 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Rāma Dvādaśī, Beijing, 2004: Monday 31 May.",
          "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": "2004-05-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śrī Rāma Dvādaśī 2004 falls on Monday 31 May. Dvādaśī runs from 01:00 on Mon 31 May to 22:33 on Mon 31 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-05-31",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-05-31",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 320,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-05-31T22:32:50+08:00",
          "utc": "2004-05-31T14:32:50Z",
          "ms": 1086013969923.5846
        },
        "end": {
          "local": "2004-06-01T19:31:12+08:00",
          "utc": "2004-06-01T11:31:12Z",
          "ms": 1086089472053.1819
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-05-31T22:32:50+08:00",
          "utc": "2004-05-31T14:32:50Z",
          "ms": 1086013969923.5846
        },
        "end": {
          "local": "2004-06-01T19:31:12+08:00",
          "utc": "2004-06-01T11:31:12Z",
          "ms": 1086089472053.1819
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-05-31",
          "window": {
            "start": {
              "local": "2004-05-31T19:35:49+08:00",
              "utc": "2004-05-31T11:35:49Z",
              "ms": 1086003348822.05
            },
            "end": {
              "local": "2004-05-31T20:49:29+08:00",
              "utc": "2004-05-31T12:49:29Z",
              "ms": 1086007768527.4237
            }
          },
          "covered_min": 0,
          "window_min": 74,
          "qualifies": false
        },
        {
          "local_date": "2004-06-01",
          "window": {
            "start": {
              "local": "2004-06-01T19:36:32+08:00",
              "utc": "2004-06-01T11:36:32Z",
              "ms": 1086089791967.7424
            },
            "end": {
              "local": "2004-06-01T20:50:03+08:00",
              "utc": "2004-06-01T12:50:03Z",
              "ms": 1086094202684.76
            }
          },
          "covered_min": 0,
          "window_min": 74,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 22:33 on Mon 31 May to 19:31 on Tue 1 Jun.",
          "fact": "2004-05-31T14:32:50Z → 2004-06-01T11:31:12Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:36–20:49 on the 31st, 19:37–20:50 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 0 of 74 minutes on the 31st and 0 of 74 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither evening qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 320 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Monday 31 May.",
          "fact": "confidence: boundary (absent-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": "2004-05-31",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-05-31",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Monday 31 May. Trayodaśī runs from 22:33 on Mon 31 May to 19:31 on Tue 1 Jun, and reaches pradoṣa on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-05-31",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/vata-savitri-vrata",
      "festival": "vata-savitri-vrata",
      "name": "Vaṭa Sāvitrī Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12813,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-06-02T16:03:41+08:00",
          "utc": "2004-06-02T08:03:41Z",
          "ms": 1086163420637.6702
        },
        "end": {
          "local": "2004-06-03T12:19:35+08:00",
          "utc": "2004-06-03T04:19:35Z",
          "ms": 1086236374611.9591
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-02T16:03:41+08:00",
          "utc": "2004-06-02T08:03:41Z",
          "ms": 1086163420637.6702
        },
        "end": {
          "local": "2004-06-03T12:19:35+08:00",
          "utc": "2004-06-03T04:19:35Z",
          "ms": 1086236374611.9591
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-06-02",
          "window": {
            "start": {
              "local": "2004-06-02T19:37:14+08:00",
              "utc": "2004-06-02T11:37:14Z",
              "ms": 1086176233958.8832
            },
            "end": {
              "local": "2004-06-02T20:50:36+08:00",
              "utc": "2004-06-02T12:50:36Z",
              "ms": 1086180636096.1956
            }
          },
          "covered_min": 73,
          "window_min": 73,
          "qualifies": true
        },
        {
          "local_date": "2004-06-03",
          "window": {
            "start": {
              "local": "2004-06-03T19:37:55+08:00",
              "utc": "2004-06-03T11:37:55Z",
              "ms": 1086262674761.9211
            },
            "end": {
              "local": "2004-06-03T20:51:09+08:00",
              "utc": "2004-06-03T12:51:09Z",
              "ms": 1086267068733.9744
            }
          },
          "covered_min": 0,
          "window_min": 73,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 16:04 on Wed 2 Jun to 12:20 on Thu 3 Jun.",
          "fact": "2004-06-02T08:03:41Z → 2004-06-03T04:19:35Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:37–20:51 on the 2nd, 19:38–20:51 on the 3rd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 73 of 73 minutes on the 2nd and 0 of 73 on the 3rd.",
          "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 12813 s"
        },
        {
          "step": "ruling",
          "text": "Vaṭa Sāvitrī Vrata, Beijing, 2004: Wednesday 2 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": "2004-06-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vaṭa Sāvitrī Vrata 2004 falls on Wednesday 2 June. Pūrṇimā runs from 16:04 on Wed 2 Jun to 12:20 on Thu 3 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-06-05",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-05",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 4636,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-06-06T01:09:31+08:00",
          "utc": "2004-06-05T17:09:31Z",
          "ms": 1086455371389.6495
        },
        "end": {
          "local": "2004-06-06T22:00:58+08:00",
          "utc": "2004-06-06T14:00:58Z",
          "ms": 1086530457549.5923
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-06T01:09:31+08:00",
          "utc": "2004-06-05T17:09:31Z",
          "ms": 1086455371389.6495
        },
        "end": {
          "local": "2004-06-06T22:00:58+08:00",
          "utc": "2004-06-06T14:00:58Z",
          "ms": 1086530457549.5923
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-06-05",
          "window": {
            "start": {
              "local": "2004-06-05T22:28:28+08:00",
              "utc": "2004-06-05T14:28:28Z",
              "ms": 1086445708110.8363
            },
            "end": {
              "local": "2004-06-05T22:28:28+08:00",
              "utc": "2004-06-05T14:28:28Z",
              "ms": 1086445708110.8363
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-06-06",
          "window": {
            "start": {
              "local": "2004-06-06T23:18:13+08:00",
              "utc": "2004-06-06T15:18:13Z",
              "ms": 1086535093155.9814
            },
            "end": {
              "local": "2004-06-06T23:18:13+08:00",
              "utc": "2004-06-06T15:18:13Z",
              "ms": 1086535093155.9814
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 01:10 on Sun 6 Jun to 22:01 on Sun 6 Jun.",
          "fact": "2004-06-05T17:09:31Z → 2004-06-06T14:00:58Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:28 on the 5th and 23:18 on the 6th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 5th and is not on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither moonrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 4636 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Saturday 5 June.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "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": "2004-06-05",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-05",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Saturday 5 June. Caturthī runs from 01:10 on Sun 6 Jun to 22:01 on Sun 6 Jun, and is current at moonrise on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-06-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-06-13",
      "festival": "ekadashi",
      "name": "Yoginī Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34991,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-06-12T17:23:55+08:00",
          "utc": "2004-06-12T09:23:55Z",
          "ms": 1087032234540.4553
        },
        "end": {
          "local": "2004-06-13T19:02:21+08:00",
          "utc": "2004-06-13T11:02:21Z",
          "ms": 1087124540950.391
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-12T17:23:55+08:00",
          "utc": "2004-06-12T09:23:55Z",
          "ms": 1087032234540.4553
        },
        "end": {
          "local": "2004-06-13T19:02:21+08:00",
          "utc": "2004-06-13T11:02:21Z",
          "ms": 1087124540950.391
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-06-13",
          "window": {
            "start": {
              "local": "2004-06-13T04:45:33+08:00",
              "utc": "2004-06-12T20:45:33Z",
              "ms": 1087073133039.788
            },
            "end": {
              "local": "2004-06-13T04:45:33+08:00",
              "utc": "2004-06-12T20:45:33Z",
              "ms": 1087073133039.788
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-06-14",
          "window": {
            "start": {
              "local": "2004-06-14T04:45:32+08:00",
              "utc": "2004-06-13T20:45:32Z",
              "ms": 1087159532016.0743
            },
            "end": {
              "local": "2004-06-14T04:45:32+08:00",
              "utc": "2004-06-13T20:45:32Z",
              "ms": 1087159532016.0743
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 17:24 on Sat 12 Jun to 19:02 on Sun 13 Jun.",
          "fact": "2004-06-12T09:23:55Z → 2004-06-13T11:02:21Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 04:46 on the 13th and 04:46 on the 14th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 13th and is not on the 14th.",
          "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 34991 s"
        },
        {
          "step": "ruling",
          "text": "Yoginī Ekādaśī, Beijing, 2004: Sunday 13 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": "2004-06-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Yoginī Ekādaśī 2004 falls on Sunday 13 June. Ekādaśī runs from 17:24 on Sat 12 Jun to 19:02 on Sun 13 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-06-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-06-15",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 613,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-06-14T21:06:21+08:00",
          "utc": "2004-06-14T13:06:21Z",
          "ms": 1087218381227.603
        },
        "end": {
          "local": "2004-06-15T23:27:01+08:00",
          "utc": "2004-06-15T15:27:01Z",
          "ms": 1087313221061.7688
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-14T21:06:21+08:00",
          "utc": "2004-06-14T13:06:21Z",
          "ms": 1087218381227.603
        },
        "end": {
          "local": "2004-06-15T23:27:01+08:00",
          "utc": "2004-06-15T15:27:01Z",
          "ms": 1087313221061.7688
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-06-14",
          "window": {
            "start": {
              "local": "2004-06-14T19:43:55+08:00",
              "utc": "2004-06-14T11:43:55Z",
              "ms": 1087213434919.4203
            },
            "end": {
              "local": "2004-06-14T20:56:08+08:00",
              "utc": "2004-06-14T12:56:08Z",
              "ms": 1087217767983.591
            }
          },
          "covered_min": 0,
          "window_min": 72,
          "qualifies": false
        },
        {
          "local_date": "2004-06-15",
          "window": {
            "start": {
              "local": "2004-06-15T19:44:19+08:00",
              "utc": "2004-06-15T11:44:19Z",
              "ms": 1087299858622.4476
            },
            "end": {
              "local": "2004-06-15T20:56:29+08:00",
              "utc": "2004-06-15T12:56:29Z",
              "ms": 1087304188896.489
            }
          },
          "covered_min": 72,
          "window_min": 72,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 21:06 on Mon 14 Jun to 23:27 on Tue 15 Jun.",
          "fact": "2004-06-14T13:06:21Z → 2004-06-15T15:27:01Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:44–20:56 on the 14th, 19:44–20:56 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 0 of 72 minutes on the 14th and 72 of 72 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 613 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Tuesday 15 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": "2004-06-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-15",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Tuesday 15 June. Trayodaśī runs from 21:06 on Mon 14 Jun to 23:27 on Tue 15 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-06-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-06-15",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-15",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1436,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-06-15T23:27:01+08:00",
          "utc": "2004-06-15T15:27:01Z",
          "ms": 1087313221061.7688
        },
        "end": {
          "local": "2004-06-17T01:56:09+08:00",
          "utc": "2004-06-16T17:56:09Z",
          "ms": 1087408569177.1553
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-15T23:27:01+08:00",
          "utc": "2004-06-15T15:27:01Z",
          "ms": 1087313221061.7688
        },
        "end": {
          "local": "2004-06-17T01:56:09+08:00",
          "utc": "2004-06-16T17:56:09Z",
          "ms": 1087408569177.1553
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-06-15",
          "window": {
            "start": {
              "local": "2004-06-15T23:50:57+08:00",
              "utc": "2004-06-15T15:50:57Z",
              "ms": 1087314657150.1029
            },
            "end": {
              "local": "2004-06-16T00:38:57+08:00",
              "utc": "2004-06-15T16:38:57Z",
              "ms": 1087317537150.1029
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-06-16",
          "window": {
            "start": {
              "local": "2004-06-16T23:51:10+08:00",
              "utc": "2004-06-16T15:51:10Z",
              "ms": 1087401070494.1919
            },
            "end": {
              "local": "2004-06-17T00:39:10+08:00",
              "utc": "2004-06-16T16:39:10Z",
              "ms": 1087403950494.1919
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 23:27 on Tue 15 Jun to 01:56 on Thu 17 Jun.",
          "fact": "2004-06-15T15:27:01Z → 2004-06-16T17:56:09Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:51–00:39 on the 15th, 23:51–00:39 on the 16th.",
          "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 15th and 48 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "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 1436 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Tuesday 15 June.",
          "fact": "confidence: boundary (tie-break-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": "2004-06-15",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-15",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Tuesday 15 June. Caturdaśī runs from 23:27 on Tue 15 Jun to 01:56 on Thu 17 Jun and covers all of niśītha that night. It also reaches the next night for 48 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/beijing/festivals/2004/shivaratri?on=2004-06-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/rathayatra",
      "festival": "rathayatra",
      "name": "Rathayātrā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9708,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2004-06-19T06:53:08+08:00",
          "utc": "2004-06-18T22:53:08Z",
          "ms": 1087599188278.6367
        },
        "end": {
          "local": "2004-06-20T09:10:11+08:00",
          "utc": "2004-06-20T01:10:11Z",
          "ms": 1087693810734.0426
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-19T06:53:08+08:00",
          "utc": "2004-06-18T22:53:08Z",
          "ms": 1087599188278.6367
        },
        "end": {
          "local": "2004-06-20T09:10:11+08:00",
          "utc": "2004-06-20T01:10:11Z",
          "ms": 1087693810734.0426
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-06-19",
          "window": {
            "start": {
              "local": "2004-06-19T11:51:46+08:00",
              "utc": "2004-06-19T03:51:46Z",
              "ms": 1087617105804.5508
            },
            "end": {
              "local": "2004-06-19T12:39:46+08:00",
              "utc": "2004-06-19T04:39:46Z",
              "ms": 1087619985804.5508
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-06-20",
          "window": {
            "start": {
              "local": "2004-06-20T11:51:58+08:00",
              "utc": "2004-06-20T03:51:58Z",
              "ms": 1087703518399.6292
            },
            "end": {
              "local": "2004-06-20T12:39:58+08:00",
              "utc": "2004-06-20T04:39:58Z",
              "ms": 1087706398399.6292
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 06:53 on Sat 19 Jun to 09:10 on Sun 20 Jun.",
          "fact": "2004-06-18T22:53:08Z → 2004-06-20T01:10:11Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 19th, 11:52–12:40 on the 20th.",
          "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 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 9708 s"
        },
        {
          "step": "ruling",
          "text": "Rathayātrā, Beijing, 2004: Saturday 19 June.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "2004-06-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Rathayātrā 2004 falls on Saturday 19 June. Dvitīyā runs from 06:53 on Sat 19 Jun to 09:10 on Sun 20 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-06-21",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-21",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 981,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-06-21T11:13:05+08:00",
          "utc": "2004-06-21T03:13:05Z",
          "ms": 1087787584802.9404
        },
        "end": {
          "local": "2004-06-22T12:56:44+08:00",
          "utc": "2004-06-22T04:56:44Z",
          "ms": 1087880204088.0494
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-21T11:13:05+08:00",
          "utc": "2004-06-21T03:13:05Z",
          "ms": 1087787584802.9404
        },
        "end": {
          "local": "2004-06-22T12:56:44+08:00",
          "utc": "2004-06-22T04:56:44Z",
          "ms": 1087880204088.0494
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-06-21",
          "window": {
            "start": {
              "local": "2004-06-21T11:52:11+08:00",
              "utc": "2004-06-21T03:52:11Z",
              "ms": 1087789930975.0051
            },
            "end": {
              "local": "2004-06-21T12:40:11+08:00",
              "utc": "2004-06-21T04:40:11Z",
              "ms": 1087792810975.0051
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-06-22",
          "window": {
            "start": {
              "local": "2004-06-22T11:52:24+08:00",
              "utc": "2004-06-22T03:52:24Z",
              "ms": 1087876343504.1599
            },
            "end": {
              "local": "2004-06-22T12:40:24+08:00",
              "utc": "2004-06-22T04:40:24Z",
              "ms": 1087879223504.1599
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 11:13 on Mon 21 Jun to 12:57 on Tue 22 Jun.",
          "fact": "2004-06-21T03:13:05Z → 2004-06-22T04:56:44Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 21st, 11:52–12:40 on the 22nd.",
          "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 21st and 48 of 48 on the 22nd.",
          "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 981 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Monday 21 June.",
          "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": "2004-06-21",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-21",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Monday 21 June. Caturthī runs from 11:13 on Mon 21 Jun to 12:57 on Tue 22 Jun and covers all of madhyāhna that midday. It also reaches the next midday for 48 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/beijing/festivals/2004/vinayaka-chaturthi?on=2004-06-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/skanda-panchami",
      "festival": "skanda-panchami",
      "name": "Skanda Pañcamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 981,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2004-06-22T12:56:44+08:00",
          "utc": "2004-06-22T04:56:44Z",
          "ms": 1087880204088.0494
        },
        "end": {
          "local": "2004-06-23T14:15:36+08:00",
          "utc": "2004-06-23T06:15:36Z",
          "ms": 1087971336087.1124
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-22T12:56:44+08:00",
          "utc": "2004-06-22T04:56:44Z",
          "ms": 1087880204088.0494
        },
        "end": {
          "local": "2004-06-23T14:15:36+08:00",
          "utc": "2004-06-23T06:15:36Z",
          "ms": 1087971336087.1124
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-06-22",
          "window": {
            "start": {
              "local": "2004-06-22T11:52:24+08:00",
              "utc": "2004-06-22T03:52:24Z",
              "ms": 1087876343504.1599
            },
            "end": {
              "local": "2004-06-22T12:40:24+08:00",
              "utc": "2004-06-22T04:40:24Z",
              "ms": 1087879223504.1599
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-06-23",
          "window": {
            "start": {
              "local": "2004-06-23T11:52:36+08:00",
              "utc": "2004-06-23T03:52:36Z",
              "ms": 1087962755960.9352
            },
            "end": {
              "local": "2004-06-23T12:40:36+08:00",
              "utc": "2004-06-23T04:40:36Z",
              "ms": 1087965635960.9352
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 12:57 on Tue 22 Jun to 14:16 on Wed 23 Jun.",
          "fact": "2004-06-22T04:56:44Z → 2004-06-23T06:15:36Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 22nd, 11:53–12:41 on the 23rd.",
          "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 22nd and 48 of 48 on the 23rd.",
          "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 981 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Pañcamī, Beijing, 2004: Wednesday 23 June.",
          "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": "2004-06-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Skanda Pañcamī 2004 falls on Wednesday 23 June. Pañcamī runs from 12:57 on Tue 22 Jun to 14:16 on Wed 23 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vivasvat-saptami",
      "festival": "vivasvat-saptami",
      "name": "Vivasvat Saptamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8589,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2004-06-24T15:03:57+08:00",
          "utc": "2004-06-24T07:03:57Z",
          "ms": 1088060637024.0225
        },
        "end": {
          "local": "2004-06-25T15:16:29+08:00",
          "utc": "2004-06-25T07:16:29Z",
          "ms": 1088147788614.6029
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-24T15:03:57+08:00",
          "utc": "2004-06-24T07:03:57Z",
          "ms": 1088060637024.0225
        },
        "end": {
          "local": "2004-06-25T15:16:29+08:00",
          "utc": "2004-06-25T07:16:29Z",
          "ms": 1088147788614.6029
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-06-24",
          "window": {
            "start": {
              "local": "2004-06-24T11:52:48+08:00",
              "utc": "2004-06-24T03:52:48Z",
              "ms": 1088049168319.6865
            },
            "end": {
              "local": "2004-06-24T12:40:48+08:00",
              "utc": "2004-06-24T04:40:48Z",
              "ms": 1088052048319.6865
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-06-25",
          "window": {
            "start": {
              "local": "2004-06-25T11:53:01+08:00",
              "utc": "2004-06-25T03:53:01Z",
              "ms": 1088135580555.4417
            },
            "end": {
              "local": "2004-06-25T12:41:01+08:00",
              "utc": "2004-06-25T04:41:01Z",
              "ms": 1088138460555.4417
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 15:04 on Thu 24 Jun to 15:16 on Fri 25 Jun.",
          "fact": "2004-06-24T07:03:57Z → 2004-06-25T07:16:29Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 24th, 11:53–12:41 on the 25th.",
          "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 24th and 48 of 48 on the 25th.",
          "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 8589 s"
        },
        {
          "step": "ruling",
          "text": "Vivasvat Saptamī, Beijing, 2004: Friday 25 June.",
          "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": "2004-06-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vivasvat Saptamī 2004 falls on Friday 25 June. Saptamī runs from 15:04 on Thu 24 Jun to 15:16 on Fri 25 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-06-29",
      "festival": "ekadashi",
      "name": "Hariśayanī Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16207,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-06-28T11:48:43+08:00",
          "utc": "2004-06-28T03:48:43Z",
          "ms": 1088394522619.4586
        },
        "end": {
          "local": "2004-06-29T09:19:01+08:00",
          "utc": "2004-06-29T01:19:01Z",
          "ms": 1088471940631.5636
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-28T11:48:43+08:00",
          "utc": "2004-06-28T03:48:43Z",
          "ms": 1088394522619.4586
        },
        "end": {
          "local": "2004-06-29T09:19:01+08:00",
          "utc": "2004-06-29T01:19:01Z",
          "ms": 1088471940631.5636
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-06-28",
          "window": {
            "start": {
              "local": "2004-06-28T04:48:28+08:00",
              "utc": "2004-06-27T20:48:28Z",
              "ms": 1088369308369.703
            },
            "end": {
              "local": "2004-06-28T04:48:28+08:00",
              "utc": "2004-06-27T20:48:28Z",
              "ms": 1088369308369.703
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-06-29",
          "window": {
            "start": {
              "local": "2004-06-29T04:48:54+08:00",
              "utc": "2004-06-28T20:48:54Z",
              "ms": 1088455733528.3358
            },
            "end": {
              "local": "2004-06-29T04:48:54+08:00",
              "utc": "2004-06-28T20:48:54Z",
              "ms": 1088455733528.3358
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 11:49 on Mon 28 Jun to 09:19 on Tue 29 Jun.",
          "fact": "2004-06-28T03:48:43Z → 2004-06-29T01:19:01Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 04:48 on the 28th and 04:49 on the 29th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 28th and is 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 16207 s"
        },
        {
          "step": "ruling",
          "text": "Hariśayanī Ekādaśī, Beijing, 2004: Tuesday 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": "2004-06-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Hariśayanī Ekādaśī 2004 falls on Tuesday 29 June. Ekādaśī runs from 11:49 on Mon 28 Jun to 09:19 on Tue 29 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-06-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-06-30",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-06-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20885,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-06-30T06:16:01+08:00",
          "utc": "2004-06-29T22:16:01Z",
          "ms": 1088547360581.2997
        },
        "end": {
          "local": "2004-07-01T02:47:08+08:00",
          "utc": "2004-06-30T18:47:08Z",
          "ms": 1088621227974.4841
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-06-30T06:16:01+08:00",
          "utc": "2004-06-29T22:16:01Z",
          "ms": 1088547360581.2997
        },
        "end": {
          "local": "2004-07-01T02:47:08+08:00",
          "utc": "2004-06-30T18:47:08Z",
          "ms": 1088621227974.4841
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-06-29",
          "window": {
            "start": {
              "local": "2004-06-29T19:46:42+08:00",
              "utc": "2004-06-29T11:46:42Z",
              "ms": 1088509602079.5111
            },
            "end": {
              "local": "2004-06-29T20:59:03+08:00",
              "utc": "2004-06-29T12:59:03Z",
              "ms": 1088513943161.7352
            }
          },
          "covered_min": 0,
          "window_min": 72,
          "qualifies": false
        },
        {
          "local_date": "2004-06-30",
          "window": {
            "start": {
              "local": "2004-06-30T19:46:38+08:00",
              "utc": "2004-06-30T11:46:38Z",
              "ms": 1088595997979.3209
            },
            "end": {
              "local": "2004-06-30T20:59:03+08:00",
              "utc": "2004-06-30T12:59:03Z",
              "ms": 1088600343360.7451
            }
          },
          "covered_min": 72,
          "window_min": 72,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 06:16 on Wed 30 Jun to 02:47 on Thu 1 Jul.",
          "fact": "2004-06-29T22:16:01Z → 2004-06-30T18:47:08Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:47–20:59 on the 29th, 19:47–20:59 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 72 minutes on the 29th and 72 of 72 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 20885 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Wednesday 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": "2004-06-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-06-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Wednesday 30 June. Trayodaśī runs from 06:16 on Wed 30 Jun to 02:47 on Thu 1 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-06-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shiva-shayanotsava",
      "festival": "shiva-shayanotsava",
      "name": "Śiva Śayanotsava",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-01",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 2249,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-07-01T23:01:23+08:00",
          "utc": "2004-07-01T15:01:23Z",
          "ms": 1088694083362.1036
        },
        "end": {
          "local": "2004-07-02T19:08:55+08:00",
          "utc": "2004-07-02T11:08:55Z",
          "ms": 1088766534639.6721
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-01T23:01:23+08:00",
          "utc": "2004-07-01T15:01:23Z",
          "ms": 1088694083362.1036
        },
        "end": {
          "local": "2004-07-02T19:08:55+08:00",
          "utc": "2004-07-02T11:08:55Z",
          "ms": 1088766534639.6721
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-07-01",
          "window": {
            "start": {
              "local": "2004-07-01T19:46:32+08:00",
              "utc": "2004-07-01T11:46:32Z",
              "ms": 1088682391906.7019
            },
            "end": {
              "local": "2004-07-01T20:59:02+08:00",
              "utc": "2004-07-01T12:59:02Z",
              "ms": 1088686742042.6714
            }
          },
          "covered_min": 0,
          "window_min": 73,
          "qualifies": false
        },
        {
          "local_date": "2004-07-02",
          "window": {
            "start": {
              "local": "2004-07-02T19:46:24+08:00",
              "utc": "2004-07-02T11:46:24Z",
              "ms": 1088768783862.1947
            },
            "end": {
              "local": "2004-07-02T20:58:59+08:00",
              "utc": "2004-07-02T12:58:59Z",
              "ms": 1088773139203.7068
            }
          },
          "covered_min": 0,
          "window_min": 73,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 23:01 on Thu 1 Jul to 19:09 on Fri 2 Jul.",
          "fact": "2004-07-01T15:01:23Z → 2004-07-02T11:08:55Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:47–20:59 on the 1st, 19:46–20:59 on the 2nd.",
          "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 73 minutes on the 1st and 0 of 73 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Neither evening qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 2249 s"
        },
        {
          "step": "ruling",
          "text": "Śiva Śayanotsava, Beijing, 2004: Thursday 1 July.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "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": "2004-07-01",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-01",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Śiva Śayanotsava 2004 falls on Thursday 1 July. Pūrṇimā runs from 23:01 on Thu 1 Jul to 19:09 on Fri 2 Jul, and reaches pradoṣa on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vyasa-puja",
      "festival": "vyasa-puja",
      "name": "Vyāsa Pūjā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20935,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-07-01T23:01:23+08:00",
          "utc": "2004-07-01T15:01:23Z",
          "ms": 1088694083362.1036
        },
        "end": {
          "local": "2004-07-02T19:08:55+08:00",
          "utc": "2004-07-02T11:08:55Z",
          "ms": 1088766534639.6721
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-01T23:01:23+08:00",
          "utc": "2004-07-01T15:01:23Z",
          "ms": 1088694083362.1036
        },
        "end": {
          "local": "2004-07-02T19:08:55+08:00",
          "utc": "2004-07-02T11:08:55Z",
          "ms": 1088766534639.6721
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "2004-07-02",
          "window": {
            "start": {
              "local": "2004-07-02T04:50:18+08:00",
              "utc": "2004-07-01T20:50:18Z",
              "ms": 1088715017926.4728
            },
            "end": {
              "local": "2004-07-02T07:49:31+08:00",
              "utc": "2004-07-01T23:49:31Z",
              "ms": 1088725771113.6172
            }
          },
          "covered_min": 179,
          "window_min": 179,
          "qualifies": true
        },
        {
          "local_date": "2004-07-03",
          "window": {
            "start": {
              "local": "2004-07-03T04:50:49+08:00",
              "utc": "2004-07-02T20:50:49Z",
              "ms": 1088801448923.5356
            },
            "end": {
              "local": "2004-07-03T07:49:54+08:00",
              "utc": "2004-07-02T23:49:54Z",
              "ms": 1088812193908.3706
            }
          },
          "covered_min": 0,
          "window_min": 179,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 23:01 on Thu 1 Jul to 19:09 on Fri 2 Jul.",
          "fact": "2004-07-01T15:01:23Z → 2004-07-02T11:08:55Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 04:50–07:50 on the 2nd, 04:51–07:50 on the 3rd.",
          "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 179 of 179 minutes on the 2nd and 0 of 179 on the 3rd.",
          "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 20935 s"
        },
        {
          "step": "ruling",
          "text": "Vyāsa Pūjā, Beijing, 2004: Friday 2 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": "2004-07-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vyāsa Pūjā 2004 falls on Friday 2 July. Pūrṇimā runs from 23:01 on Thu 1 Jul to 19:09 on Fri 2 Jul and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/guru-purnima",
      "festival": "guru-purnima",
      "name": "Guru Pūrṇimā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23194,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-07-01T23:01:23+08:00",
          "utc": "2004-07-01T15:01:23Z",
          "ms": 1088694083362.1036
        },
        "end": {
          "local": "2004-07-02T19:08:55+08:00",
          "utc": "2004-07-02T11:08:55Z",
          "ms": 1088766534639.6721
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-01T23:01:23+08:00",
          "utc": "2004-07-01T15:01:23Z",
          "ms": 1088694083362.1036
        },
        "end": {
          "local": "2004-07-02T19:08:55+08:00",
          "utc": "2004-07-02T11:08:55Z",
          "ms": 1088766534639.6721
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-07-01",
          "window": {
            "start": {
              "local": "2004-07-01T11:54:10+08:00",
              "utc": "2004-07-01T03:54:10Z",
              "ms": 1088654050123.3523
            },
            "end": {
              "local": "2004-07-01T12:42:10+08:00",
              "utc": "2004-07-01T04:42:10Z",
              "ms": 1088656930123.3523
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-07-02",
          "window": {
            "start": {
              "local": "2004-07-02T11:54:21+08:00",
              "utc": "2004-07-02T03:54:21Z",
              "ms": 1088740460894.3337
            },
            "end": {
              "local": "2004-07-02T12:42:21+08:00",
              "utc": "2004-07-02T04:42:21Z",
              "ms": 1088743340894.3337
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 23:01 on Thu 1 Jul to 19:09 on Fri 2 Jul.",
          "fact": "2004-07-01T15:01:23Z → 2004-07-02T11:08:55Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 1st, 11:54–12:42 on the 2nd.",
          "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 1st and 48 of 48 on the 2nd.",
          "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 23194 s"
        },
        {
          "step": "ruling",
          "text": "Guru Pūrṇimā, Beijing, 2004: Friday 2 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": "2004-07-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Guru Pūrṇimā 2004 falls on Friday 2 July. Pūrṇimā runs from 23:01 on Thu 1 Jul to 19:09 on Fri 2 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/kokila-vrata",
      "festival": "kokila-vrata",
      "name": "Kokilā Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2249,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-07-01T23:01:23+08:00",
          "utc": "2004-07-01T15:01:23Z",
          "ms": 1088694083362.1036
        },
        "end": {
          "local": "2004-07-02T19:08:55+08:00",
          "utc": "2004-07-02T11:08:55Z",
          "ms": 1088766534639.6721
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-01T23:01:23+08:00",
          "utc": "2004-07-01T15:01:23Z",
          "ms": 1088694083362.1036
        },
        "end": {
          "local": "2004-07-02T19:08:55+08:00",
          "utc": "2004-07-02T11:08:55Z",
          "ms": 1088766534639.6721
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2004-07-01",
          "window": {
            "start": {
              "local": "2004-07-01T16:47:11+08:00",
              "utc": "2004-07-01T08:47:11Z",
              "ms": 1088671631193.362
            },
            "end": {
              "local": "2004-07-01T19:46:32+08:00",
              "utc": "2004-07-01T11:46:32Z",
              "ms": 1088682391906.7019
            }
          },
          "covered_min": 0,
          "window_min": 179,
          "qualifies": false
        },
        {
          "local_date": "2004-07-02",
          "window": {
            "start": {
              "local": "2004-07-02T16:47:11+08:00",
              "utc": "2004-07-02T08:47:11Z",
              "ms": 1088758030675.0503
            },
            "end": {
              "local": "2004-07-02T19:46:24+08:00",
              "utc": "2004-07-02T11:46:24Z",
              "ms": 1088768783862.1947
            }
          },
          "covered_min": 142,
          "window_min": 179,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 23:01 on Thu 1 Jul to 19:09 on Fri 2 Jul.",
          "fact": "2004-07-01T15:01:23Z → 2004-07-02T11:08:55Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:47–19:47 on the 1st, 16:47–19:46 on the 2nd.",
          "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 179 minutes on the 1st and 142 of 179 on the 2nd.",
          "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 2249 s"
        },
        {
          "step": "ruling",
          "text": "Kokilā Vrata, Beijing, 2004: Friday 2 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": "2004-07-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kokilā Vrata 2004 falls on Friday 2 July. Pūrṇimā runs from 23:01 on Thu 1 Jul to 19:09 on Fri 2 Jul and covers 142 of 179 minutes of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ashunya-shayana-vrata-ashadha",
      "festival": "ashunya-shayana-vrata-ashadha",
      "name": "Aśūnya Śayana Vrata (Āṣāḍha)",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20735,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2004-07-03T15:20:31+08:00",
          "utc": "2004-07-03T07:20:31Z",
          "ms": 1088839230688.6506
        },
        "end": {
          "local": "2004-07-04T11:47:15+08:00",
          "utc": "2004-07-04T03:47:15Z",
          "ms": 1088912834897.0269
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-03T15:20:31+08:00",
          "utc": "2004-07-03T07:20:31Z",
          "ms": 1088839230688.6506
        },
        "end": {
          "local": "2004-07-04T11:47:15+08:00",
          "utc": "2004-07-04T03:47:15Z",
          "ms": 1088912834897.0269
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-07-03",
          "window": {
            "start": {
              "local": "2004-07-03T21:06:06+08:00",
              "utc": "2004-07-03T13:06:06Z",
              "ms": 1088859965823.159
            },
            "end": {
              "local": "2004-07-03T21:06:06+08:00",
              "utc": "2004-07-03T13:06:06Z",
              "ms": 1088859965823.159
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-07-04",
          "window": {
            "start": {
              "local": "2004-07-04T21:50:53+08:00",
              "utc": "2004-07-04T13:50:53Z",
              "ms": 1088949053282.6893
            },
            "end": {
              "local": "2004-07-04T21:50:53+08:00",
              "utc": "2004-07-04T13:50:53Z",
              "ms": 1088949053282.6893
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 15:21 on Sat 3 Jul to 11:47 on Sun 4 Jul.",
          "fact": "2004-07-03T07:20:31Z → 2004-07-04T03:47:15Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:06 on the 3rd and 21:51 on the 4th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is on the 3rd and is not on the 4th.",
          "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 20735 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata (Āṣāḍha), Beijing, 2004: Saturday 3 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": "2004-07-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Aśūnya Śayana Vrata (Āṣāḍha) 2004 falls on Saturday 3 July. Dvitīyā runs from 15:21 on Sat 3 Jul to 11:47 on Sun 4 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-07-05",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27745,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-07-05T08:39:55+08:00",
          "utc": "2004-07-05T00:39:55Z",
          "ms": 1088987995173.099
        },
        "end": {
          "local": "2004-07-06T06:08:27+08:00",
          "utc": "2004-07-05T22:08:27Z",
          "ms": 1089065306505.1351
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-05T08:39:55+08:00",
          "utc": "2004-07-05T00:39:55Z",
          "ms": 1088987995173.099
        },
        "end": {
          "local": "2004-07-06T06:08:27+08:00",
          "utc": "2004-07-05T22:08:27Z",
          "ms": 1089065306505.1351
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-07-04",
          "window": {
            "start": {
              "local": "2004-07-04T21:50:53+08:00",
              "utc": "2004-07-04T13:50:53Z",
              "ms": 1088949053282.6893
            },
            "end": {
              "local": "2004-07-04T21:50:53+08:00",
              "utc": "2004-07-04T13:50:53Z",
              "ms": 1088949053282.6893
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-07-05",
          "window": {
            "start": {
              "local": "2004-07-05T22:26:02+08:00",
              "utc": "2004-07-05T14:26:02Z",
              "ms": 1089037561524.5706
            },
            "end": {
              "local": "2004-07-05T22:26:02+08:00",
              "utc": "2004-07-05T14:26:02Z",
              "ms": 1089037561524.5706
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 08:40 on Mon 5 Jul to 06:08 on Tue 6 Jul.",
          "fact": "2004-07-05T00:39:55Z → 2004-07-05T22:08:27Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:51 on the 4th and 22:26 on the 5th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 4th and is on the 5th.",
          "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 27745 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Monday 5 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": "2004-07-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Monday 5 July. Caturthī runs from 08:40 on Mon 5 Jul to 06:08 on Tue 6 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-07-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-07-13",
      "festival": "ekadashi",
      "name": "Kāmikā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9156,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-07-12T07:29:02+08:00",
          "utc": "2004-07-11T23:29:02Z",
          "ms": 1089588541629.332
        },
        "end": {
          "local": "2004-07-13T09:51:03+08:00",
          "utc": "2004-07-13T01:51:03Z",
          "ms": 1089683462937.9585
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-12T07:29:02+08:00",
          "utc": "2004-07-11T23:29:02Z",
          "ms": 1089588541629.332
        },
        "end": {
          "local": "2004-07-13T09:51:03+08:00",
          "utc": "2004-07-13T01:51:03Z",
          "ms": 1089683462937.9585
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-07-12",
          "window": {
            "start": {
              "local": "2004-07-12T04:56:26+08:00",
              "utc": "2004-07-11T20:56:26Z",
              "ms": 1089579385806.2026
            },
            "end": {
              "local": "2004-07-12T04:56:26+08:00",
              "utc": "2004-07-11T20:56:26Z",
              "ms": 1089579385806.2026
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-07-13",
          "window": {
            "start": {
              "local": "2004-07-13T04:57:09+08:00",
              "utc": "2004-07-12T20:57:09Z",
              "ms": 1089665828974.8224
            },
            "end": {
              "local": "2004-07-13T04:57:09+08:00",
              "utc": "2004-07-12T20:57:09Z",
              "ms": 1089665828974.8224
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 07:29 on Mon 12 Jul to 09:51 on Tue 13 Jul.",
          "fact": "2004-07-11T23:29:02Z → 2004-07-13T01:51:03Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 04:56 on the 12th and 04:57 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 9156 s"
        },
        {
          "step": "ruling",
          "text": "Kāmikā Ekādaśī, Beijing, 2004: Tuesday 13 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": "2004-07-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kāmikā Ekādaśī 2004 falls on Tuesday 13 July. Ekādaśī runs from 07:29 on Mon 12 Jul to 09:51 on Tue 13 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-07-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-07-14",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17291,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-07-14T12:22:40+08:00",
          "utc": "2004-07-14T04:22:40Z",
          "ms": 1089778960224.4274
        },
        "end": {
          "local": "2004-07-15T14:53:31+08:00",
          "utc": "2004-07-15T06:53:31Z",
          "ms": 1089874410899.4563
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-14T12:22:40+08:00",
          "utc": "2004-07-14T04:22:40Z",
          "ms": 1089778960224.4274
        },
        "end": {
          "local": "2004-07-15T14:53:31+08:00",
          "utc": "2004-07-15T06:53:31Z",
          "ms": 1089874410899.4563
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-07-14",
          "window": {
            "start": {
              "local": "2004-07-14T19:42:15+08:00",
              "utc": "2004-07-14T11:42:15Z",
              "ms": 1089805334746.3226
            },
            "end": {
              "local": "2004-07-14T20:56:26+08:00",
              "utc": "2004-07-14T12:56:26Z",
              "ms": 1089809785879.6984
            }
          },
          "covered_min": 74,
          "window_min": 74,
          "qualifies": true
        },
        {
          "local_date": "2004-07-15",
          "window": {
            "start": {
              "local": "2004-07-15T19:41:41+08:00",
              "utc": "2004-07-15T11:41:41Z",
              "ms": 1089891701459.942
            },
            "end": {
              "local": "2004-07-15T20:56:03+08:00",
              "utc": "2004-07-15T12:56:03Z",
              "ms": 1089896163166.7131
            }
          },
          "covered_min": 0,
          "window_min": 74,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 12:23 on Wed 14 Jul to 14:54 on Thu 15 Jul.",
          "fact": "2004-07-14T04:22:40Z → 2004-07-15T06:53:31Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:42–20:56 on the 14th, 19:42–20:56 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 74 of 74 minutes on the 14th and 0 of 74 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 17291 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Wednesday 14 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": "2004-07-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Wednesday 14 July. Trayodaśī runs from 12:23 on Wed 14 Jul to 14:54 on Thu 15 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-07-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-07-15",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24059,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-07-15T14:53:31+08:00",
          "utc": "2004-07-15T06:53:31Z",
          "ms": 1089874410899.4563
        },
        "end": {
          "local": "2004-07-16T17:15:40+08:00",
          "utc": "2004-07-16T09:15:40Z",
          "ms": 1089969340083.2885
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-15T14:53:31+08:00",
          "utc": "2004-07-15T06:53:31Z",
          "ms": 1089874410899.4563
        },
        "end": {
          "local": "2004-07-16T17:15:40+08:00",
          "utc": "2004-07-16T09:15:40Z",
          "ms": 1089969340083.2885
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-07-15",
          "window": {
            "start": {
              "local": "2004-07-15T23:56:33+08:00",
              "utc": "2004-07-15T15:56:33Z",
              "ms": 1089906992860.3337
            },
            "end": {
              "local": "2004-07-16T00:44:33+08:00",
              "utc": "2004-07-15T16:44:33Z",
              "ms": 1089909872860.3337
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-07-16",
          "window": {
            "start": {
              "local": "2004-07-16T23:56:39+08:00",
              "utc": "2004-07-16T15:56:39Z",
              "ms": 1089993398713.0763
            },
            "end": {
              "local": "2004-07-17T00:44:39+08:00",
              "utc": "2004-07-16T16:44:39Z",
              "ms": 1089996278713.0763
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 14:54 on Thu 15 Jul to 17:16 on Fri 16 Jul.",
          "fact": "2004-07-15T06:53:31Z → 2004-07-16T09:15:40Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:57–00:45 on the 15th, 23:57–00:45 on the 16th.",
          "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 15th and 0 of 48 on the 16th.",
          "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 24059 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Thursday 15 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": "2004-07-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Thursday 15 July. Caturdaśī runs from 14:54 on Thu 15 Jul to 17:16 on Fri 16 Jul and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-07-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-07-21",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 40259,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-07-20T23:55:30+08:00",
          "utc": "2004-07-20T15:55:30Z",
          "ms": 1090338930439.0996
        },
        "end": {
          "local": "2004-07-22T00:41:46+08:00",
          "utc": "2004-07-21T16:41:46Z",
          "ms": 1090428105610.8503
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": true,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-20T23:55:30+08:00",
          "utc": "2004-07-20T15:55:30Z",
          "ms": 1090338930439.0996
        },
        "end": {
          "local": "2004-07-22T00:41:46+08:00",
          "utc": "2004-07-21T16:41:46Z",
          "ms": 1090428105610.8503
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-07-20",
          "window": {
            "start": {
              "local": "2004-07-20T11:56:32+08:00",
              "utc": "2004-07-20T03:56:32Z",
              "ms": 1090295791779.5442
            },
            "end": {
              "local": "2004-07-20T12:44:32+08:00",
              "utc": "2004-07-20T04:44:32Z",
              "ms": 1090298671779.5442
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-07-21",
          "window": {
            "start": {
              "local": "2004-07-21T11:56:35+08:00",
              "utc": "2004-07-21T03:56:35Z",
              "ms": 1090382194538.5856
            },
            "end": {
              "local": "2004-07-21T12:44:35+08:00",
              "utc": "2004-07-21T04:44:35Z",
              "ms": 1090385074538.5856
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 23:56 on Tue 20 Jul to 00:42 on Thu 22 Jul.",
          "fact": "2004-07-20T15:55:30Z → 2004-07-21T16:41:46Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 20th, 11:57–12:45 on the 21st.",
          "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 20th and 48 of 48 on the 21st.",
          "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 40259 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Wednesday 21 July.",
          "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": "2004-07-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Wednesday 21 July. Caturthī runs from 23:56 on Tue 20 Jul to 00:42 on Thu 22 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-07-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-07-28",
      "festival": "ekadashi",
      "name": "Śukla Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37669,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-07-27T18:41:42+08:00",
          "utc": "2004-07-27T10:41:42Z",
          "ms": 1090924901977.3296
        },
        "end": {
          "local": "2004-07-28T15:50:05+08:00",
          "utc": "2004-07-28T07:50:05Z",
          "ms": 1091001004794.1643
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": true,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-27T18:41:42+08:00",
          "utc": "2004-07-27T10:41:42Z",
          "ms": 1090924901977.3296
        },
        "end": {
          "local": "2004-07-28T15:50:05+08:00",
          "utc": "2004-07-28T07:50:05Z",
          "ms": 1091001004794.1643
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-07-28",
          "window": {
            "start": {
              "local": "2004-07-28T05:09:31+08:00",
              "utc": "2004-07-27T21:09:31Z",
              "ms": 1090962571141.4609
            },
            "end": {
              "local": "2004-07-28T05:09:31+08:00",
              "utc": "2004-07-27T21:09:31Z",
              "ms": 1090962571141.4609
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-07-29",
          "window": {
            "start": {
              "local": "2004-07-29T05:10:25+08:00",
              "utc": "2004-07-28T21:10:25Z",
              "ms": 1091049025062.8601
            },
            "end": {
              "local": "2004-07-29T05:10:25+08:00",
              "utc": "2004-07-28T21:10:25Z",
              "ms": 1091049025062.8601
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 18:42 on Tue 27 Jul to 15:50 on Wed 28 Jul.",
          "fact": "2004-07-27T10:41:42Z → 2004-07-28T07:50:05Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:10 on the 28th and 05:10 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 37669 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Ekādaśī, Beijing, 2004: Wednesday 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": "2004-07-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Ekādaśī 2004 falls on Wednesday 28 July. Ekādaśī runs from 18:42 on Tue 27 Jul to 15:50 on Wed 28 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-07-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-07-29",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-07-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24886,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-07-29T12:36:00+08:00",
          "utc": "2004-07-29T04:36:00Z",
          "ms": 1091075759623.9358
        },
        "end": {
          "local": "2004-07-30T09:07:25+08:00",
          "utc": "2004-07-30T01:07:25Z",
          "ms": 1091149645218.6488
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": true,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-07-29T12:36:00+08:00",
          "utc": "2004-07-29T04:36:00Z",
          "ms": 1091075759623.9358
        },
        "end": {
          "local": "2004-07-30T09:07:25+08:00",
          "utc": "2004-07-30T01:07:25Z",
          "ms": 1091149645218.6488
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-07-29",
          "window": {
            "start": {
              "local": "2004-07-29T19:30:46+08:00",
              "utc": "2004-07-29T11:30:46Z",
              "ms": 1091100645697.7063
            },
            "end": {
              "local": "2004-07-29T20:48:10+08:00",
              "utc": "2004-07-29T12:48:10Z",
              "ms": 1091105290183.2883
            }
          },
          "covered_min": 77,
          "window_min": 77,
          "qualifies": true
        },
        {
          "local_date": "2004-07-30",
          "window": {
            "start": {
              "local": "2004-07-30T19:29:46+08:00",
              "utc": "2004-07-30T11:29:46Z",
              "ms": 1091186986186.6827
            },
            "end": {
              "local": "2004-07-30T20:47:26+08:00",
              "utc": "2004-07-30T12:47:26Z",
              "ms": 1091191645887.8799
            }
          },
          "covered_min": 0,
          "window_min": 78,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 12:36 on Thu 29 Jul to 09:07 on Fri 30 Jul.",
          "fact": "2004-07-29T04:36:00Z → 2004-07-30T01:07:25Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:31–20:48 on the 29th, 19:30–20:47 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 77 of 77 minutes on the 29th and 0 of 78 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 24886 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Thursday 29 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": "2004-07-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-07-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Thursday 29 July. Trayodaśī runs from 12:36 on Thu 29 Jul to 09:07 on Fri 30 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-07-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-08-03",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12171,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-08-03T17:56:21+08:00",
          "utc": "2004-08-03T09:56:21Z",
          "ms": 1091526980573.4355
        },
        "end": {
          "local": "2004-08-04T16:30:42+08:00",
          "utc": "2004-08-04T08:30:42Z",
          "ms": 1091608241749.3894
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": true,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-03T17:56:21+08:00",
          "utc": "2004-08-03T09:56:21Z",
          "ms": 1091526980573.4355
        },
        "end": {
          "local": "2004-08-04T16:30:42+08:00",
          "utc": "2004-08-04T08:30:42Z",
          "ms": 1091608241749.3894
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-08-03",
          "window": {
            "start": {
              "local": "2004-08-03T21:19:11+08:00",
              "utc": "2004-08-03T13:19:11Z",
              "ms": 1091539151323.7408
            },
            "end": {
              "local": "2004-08-03T21:19:11+08:00",
              "utc": "2004-08-03T13:19:11Z",
              "ms": 1091539151323.7408
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-08-04",
          "window": {
            "start": {
              "local": "2004-08-04T21:43:05+08:00",
              "utc": "2004-08-04T13:43:05Z",
              "ms": 1091626984845.6444
            },
            "end": {
              "local": "2004-08-04T21:43:05+08:00",
              "utc": "2004-08-04T13:43:05Z",
              "ms": 1091626984845.6444
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:56 on Tue 3 Aug to 16:31 on Wed 4 Aug.",
          "fact": "2004-08-03T09:56:21Z → 2004-08-04T08:30:42Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:19 on the 3rd and 21:43 on the 4th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 3rd and is not on the 4th.",
          "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 12171 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Tuesday 3 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": "2004-08-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Tuesday 3 August. Caturthī runs from 17:56 on Tue 3 Aug to 16:31 on Wed 4 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-08-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-08-11",
      "festival": "ekadashi",
      "name": "Kṛṣṇa Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11671,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-08-10T23:39:02+08:00",
          "utc": "2004-08-10T15:39:02Z",
          "ms": 1092152342431.7336
        },
        "end": {
          "local": "2004-08-12T02:08:56+08:00",
          "utc": "2004-08-11T18:08:56Z",
          "ms": 1092247736497.4922
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": true,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-10T23:39:02+08:00",
          "utc": "2004-08-10T15:39:02Z",
          "ms": 1092152342431.7336
        },
        "end": {
          "local": "2004-08-12T02:08:56+08:00",
          "utc": "2004-08-11T18:08:56Z",
          "ms": 1092247736497.4922
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-08-11",
          "window": {
            "start": {
              "local": "2004-08-11T05:22:30+08:00",
              "utc": "2004-08-10T21:22:30Z",
              "ms": 1092172950395.7738
            },
            "end": {
              "local": "2004-08-11T05:22:30+08:00",
              "utc": "2004-08-10T21:22:30Z",
              "ms": 1092172950395.7738
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-08-12",
          "window": {
            "start": {
              "local": "2004-08-12T05:23:27+08:00",
              "utc": "2004-08-11T21:23:27Z",
              "ms": 1092259407352.835
            },
            "end": {
              "local": "2004-08-12T05:23:27+08:00",
              "utc": "2004-08-11T21:23:27Z",
              "ms": 1092259407352.835
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 23:39 on Tue 10 Aug to 02:09 on Thu 12 Aug.",
          "fact": "2004-08-10T15:39:02Z → 2004-08-11T18:08:56Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:23 on the 11th and 05:23 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 11671 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Ekādaśī, Beijing, 2004: Wednesday 11 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": "2004-08-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Ekādaśī 2004 falls on Wednesday 11 August. Ekādaśī runs from 23:39 on Tue 10 Aug to 02:09 on Thu 12 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-08-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-08-13",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28376,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-08-13T04:28:57+08:00",
          "utc": "2004-08-12T20:28:57Z",
          "ms": 1092342536977.4808
        },
        "end": {
          "local": "2004-08-14T06:30:49+08:00",
          "utc": "2004-08-13T22:30:49Z",
          "ms": 1092436249106.897
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": true,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-13T04:28:57+08:00",
          "utc": "2004-08-12T20:28:57Z",
          "ms": 1092342536977.4808
        },
        "end": {
          "local": "2004-08-14T06:30:49+08:00",
          "utc": "2004-08-13T22:30:49Z",
          "ms": 1092436249106.897
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-08-12",
          "window": {
            "start": {
              "local": "2004-08-12T19:14:44+08:00",
              "utc": "2004-08-12T11:14:44Z",
              "ms": 1092309283970.3434
            },
            "end": {
              "local": "2004-08-12T20:36:01+08:00",
              "utc": "2004-08-12T12:36:01Z",
              "ms": 1092314161358.0696
            }
          },
          "covered_min": 0,
          "window_min": 81,
          "qualifies": false
        },
        {
          "local_date": "2004-08-13",
          "window": {
            "start": {
              "local": "2004-08-13T19:13:26+08:00",
              "utc": "2004-08-13T11:13:26Z",
              "ms": 1092395605744.7339
            },
            "end": {
              "local": "2004-08-13T20:35:01+08:00",
              "utc": "2004-08-13T12:35:01Z",
              "ms": 1092400501172.6787
            }
          },
          "covered_min": 82,
          "window_min": 82,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:29 on Fri 13 Aug to 06:31 on Sat 14 Aug.",
          "fact": "2004-08-12T20:28:57Z → 2004-08-13T22:30:49Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:15–20:36 on the 12th, 19:13–20:35 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 81 minutes on the 12th and 82 of 82 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 28376 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Friday 13 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": "2004-08-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Friday 13 August. Trayodaśī runs from 04:29 on Fri 13 Aug to 06:31 on Sat 14 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-08-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-08-14",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20846,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-08-14T06:30:49+08:00",
          "utc": "2004-08-13T22:30:49Z",
          "ms": 1092436249106.897
        },
        "end": {
          "local": "2004-08-15T08:09:46+08:00",
          "utc": "2004-08-15T00:09:46Z",
          "ms": 1092528585859.6755
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": true,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-14T06:30:49+08:00",
          "utc": "2004-08-13T22:30:49Z",
          "ms": 1092436249106.897
        },
        "end": {
          "local": "2004-08-15T08:09:46+08:00",
          "utc": "2004-08-15T00:09:46Z",
          "ms": 1092528585859.6755
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-08-13",
          "window": {
            "start": {
              "local": "2004-08-13T23:55:24+08:00",
              "utc": "2004-08-13T15:55:24Z",
              "ms": 1092412523599.5271
            },
            "end": {
              "local": "2004-08-14T00:43:24+08:00",
              "utc": "2004-08-13T16:43:24Z",
              "ms": 1092415403599.5271
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-08-14",
          "window": {
            "start": {
              "local": "2004-08-14T23:55:12+08:00",
              "utc": "2004-08-14T15:55:12Z",
              "ms": 1092498912485.2957
            },
            "end": {
              "local": "2004-08-15T00:43:12+08:00",
              "utc": "2004-08-14T16:43:12Z",
              "ms": 1092501792485.2957
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 06:31 on Sat 14 Aug to 08:10 on Sun 15 Aug.",
          "fact": "2004-08-13T22:30:49Z → 2004-08-15T00:09:46Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:55–00:43 on the 13th, 23:55–00:43 on the 14th.",
          "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 13th and 48 of 48 on the 14th.",
          "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 20846 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Saturday 14 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": "2004-08-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Saturday 14 August. Caturdaśī runs from 06:31 on Sat 14 Aug to 08:10 on Sun 15 Aug and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-08-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/madhusrava-tritiya",
      "festival": "madhusrava-tritiya",
      "name": "Madhusravā Tṛtīyā",
      "everyday": "Hariyali Teej",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4338,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2004-08-18T10:38:45+08:00",
          "utc": "2004-08-18T02:38:45Z",
          "ms": 1092796724903.3402
        },
        "end": {
          "local": "2004-08-19T10:41:23+08:00",
          "utc": "2004-08-19T02:41:23Z",
          "ms": 1092883282715.5902
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-18T10:38:45+08:00",
          "utc": "2004-08-18T02:38:45Z",
          "ms": 1092796724903.3402
        },
        "end": {
          "local": "2004-08-19T10:41:23+08:00",
          "utc": "2004-08-19T02:41:23Z",
          "ms": 1092883282715.5902
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-08-18",
          "window": {
            "start": {
              "local": "2004-08-18T11:53:54+08:00",
              "utc": "2004-08-18T03:53:54Z",
              "ms": 1092801234219.8298
            },
            "end": {
              "local": "2004-08-18T12:41:54+08:00",
              "utc": "2004-08-18T04:41:54Z",
              "ms": 1092804114219.8298
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-08-19",
          "window": {
            "start": {
              "local": "2004-08-19T11:53:41+08:00",
              "utc": "2004-08-19T03:53:41Z",
              "ms": 1092887620529.2975
            },
            "end": {
              "local": "2004-08-19T12:41:41+08:00",
              "utc": "2004-08-19T04:41:41Z",
              "ms": 1092890500529.2975
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 10:39 on Wed 18 Aug to 10:41 on Thu 19 Aug.",
          "fact": "2004-08-18T02:38:45Z → 2004-08-19T02:41:23Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 18th, 11:54–12:42 on the 19th.",
          "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 18th and 0 of 48 on the 19th.",
          "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 4338 s"
        },
        {
          "step": "ruling",
          "text": "Madhusravā Tṛtīyā, Beijing, 2004: Wednesday 18 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": "2004-08-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Madhusravā Tṛtīyā (Hariyali Teej) 2004 falls on Wednesday 18 August. Tṛtīyā runs from 10:39 on Wed 18 Aug to 10:41 on Thu 19 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-08-19",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4338,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-08-19T10:41:23+08:00",
          "utc": "2004-08-19T02:41:23Z",
          "ms": 1092883282715.5902
        },
        "end": {
          "local": "2004-08-20T10:21:38+08:00",
          "utc": "2004-08-20T02:21:38Z",
          "ms": 1092968498204.9613
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-19T10:41:23+08:00",
          "utc": "2004-08-19T02:41:23Z",
          "ms": 1092883282715.5902
        },
        "end": {
          "local": "2004-08-20T10:21:38+08:00",
          "utc": "2004-08-20T02:21:38Z",
          "ms": 1092968498204.9613
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-08-19",
          "window": {
            "start": {
              "local": "2004-08-19T11:53:41+08:00",
              "utc": "2004-08-19T03:53:41Z",
              "ms": 1092887620529.2975
            },
            "end": {
              "local": "2004-08-19T12:41:41+08:00",
              "utc": "2004-08-19T04:41:41Z",
              "ms": 1092890500529.2975
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-08-20",
          "window": {
            "start": {
              "local": "2004-08-20T11:53:26+08:00",
              "utc": "2004-08-20T03:53:26Z",
              "ms": 1092974006349.2288
            },
            "end": {
              "local": "2004-08-20T12:41:26+08:00",
              "utc": "2004-08-20T04:41:26Z",
              "ms": 1092976886349.2288
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:41 on Thu 19 Aug to 10:22 on Fri 20 Aug.",
          "fact": "2004-08-19T02:41:23Z → 2004-08-20T02:21:38Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 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": "Caturthī 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 4338 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Thursday 19 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": "2004-08-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Thursday 19 August. Caturthī runs from 10:41 on Thu 19 Aug to 10:22 on Fri 20 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-08-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/naga-panchami",
      "festival": "naga-panchami",
      "name": "Nāga Pañcamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5508,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2004-08-20T10:21:38+08:00",
          "utc": "2004-08-20T02:21:38Z",
          "ms": 1092968498204.9613
        },
        "end": {
          "local": "2004-08-21T09:39:23+08:00",
          "utc": "2004-08-21T01:39:23Z",
          "ms": 1093052363130.4814
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-20T10:21:38+08:00",
          "utc": "2004-08-20T02:21:38Z",
          "ms": 1092968498204.9613
        },
        "end": {
          "local": "2004-08-21T09:39:23+08:00",
          "utc": "2004-08-21T01:39:23Z",
          "ms": 1093052363130.4814
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-08-20",
          "window": {
            "start": {
              "local": "2004-08-20T11:53:26+08:00",
              "utc": "2004-08-20T03:53:26Z",
              "ms": 1092974006349.2288
            },
            "end": {
              "local": "2004-08-20T12:41:26+08:00",
              "utc": "2004-08-20T04:41:26Z",
              "ms": 1092976886349.2288
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-08-21",
          "window": {
            "start": {
              "local": "2004-08-21T11:53:12+08:00",
              "utc": "2004-08-21T03:53:12Z",
              "ms": 1093060391688.8702
            },
            "end": {
              "local": "2004-08-21T12:41:12+08:00",
              "utc": "2004-08-21T04:41:12Z",
              "ms": 1093063271688.8702
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 10:22 on Fri 20 Aug to 09:39 on Sat 21 Aug.",
          "fact": "2004-08-20T02:21:38Z → 2004-08-21T01:39:23Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 20th, 11:53–12:41 on the 21st.",
          "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 20th and 0 of 48 on the 21st.",
          "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 5508 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī, Beijing, 2004: Friday 20 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": "2004-08-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Nāga Pañcamī 2004 falls on Friday 20 August. Pañcamī runs from 10:22 on Fri 20 Aug to 09:39 on Sat 21 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-08-26",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18729,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-08-26T00:24:36+08:00",
          "utc": "2004-08-25T16:24:36Z",
          "ms": 1093451075588.4006
        },
        "end": {
          "local": "2004-08-26T21:36:23+08:00",
          "utc": "2004-08-26T13:36:23Z",
          "ms": 1093527383295.639
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-26T00:24:36+08:00",
          "utc": "2004-08-25T16:24:36Z",
          "ms": 1093451075588.4006
        },
        "end": {
          "local": "2004-08-26T21:36:23+08:00",
          "utc": "2004-08-26T13:36:23Z",
          "ms": 1093527383295.639
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-08-26",
          "window": {
            "start": {
              "local": "2004-08-26T05:36:45+08:00",
              "utc": "2004-08-25T21:36:45Z",
              "ms": 1093469805060.3405
            },
            "end": {
              "local": "2004-08-26T05:36:45+08:00",
              "utc": "2004-08-25T21:36:45Z",
              "ms": 1093469805060.3405
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-08-27",
          "window": {
            "start": {
              "local": "2004-08-27T05:37:42+08:00",
              "utc": "2004-08-26T21:37:42Z",
              "ms": 1093556261627.4062
            },
            "end": {
              "local": "2004-08-27T05:37:42+08:00",
              "utc": "2004-08-26T21:37:42Z",
              "ms": 1093556261627.4062
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:25 on Thu 26 Aug to 21:36 on Thu 26 Aug.",
          "fact": "2004-08-25T16:24:36Z → 2004-08-26T13:36:23Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:37 on the 26th and 05:38 on the 27th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not 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 18729 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Beijing, 2004: Thursday 26 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": "2004-08-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Putradā Ekādaśī 2004 falls on Thursday 26 August. Ekādaśī runs from 00:25 on Thu 26 Aug to 21:36 on Thu 26 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-08-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/damodara-dvadashi",
      "festival": "damodara-dvadashi",
      "name": "Dāmodara Dvādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21622,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2004-08-26T21:36:23+08:00",
          "utc": "2004-08-26T13:36:23Z",
          "ms": 1093527383295.639
        },
        "end": {
          "local": "2004-08-27T18:39:56+08:00",
          "utc": "2004-08-27T10:39:56Z",
          "ms": 1093603196434.706
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-26T21:36:23+08:00",
          "utc": "2004-08-26T13:36:23Z",
          "ms": 1093527383295.639
        },
        "end": {
          "local": "2004-08-27T18:39:56+08:00",
          "utc": "2004-08-27T10:39:56Z",
          "ms": 1093603196434.706
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-08-26",
          "window": {
            "start": {
              "local": "2004-08-26T11:51:52+08:00",
              "utc": "2004-08-26T03:51:52Z",
              "ms": 1093492311586.6803
            },
            "end": {
              "local": "2004-08-26T12:39:52+08:00",
              "utc": "2004-08-26T04:39:52Z",
              "ms": 1093495191586.6803
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-08-27",
          "window": {
            "start": {
              "local": "2004-08-27T11:51:34+08:00",
              "utc": "2004-08-27T03:51:34Z",
              "ms": 1093578694305.1599
            },
            "end": {
              "local": "2004-08-27T12:39:34+08:00",
              "utc": "2004-08-27T04:39:34Z",
              "ms": 1093581574305.1599
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 21:36 on Thu 26 Aug to 18:40 on Fri 27 Aug.",
          "fact": "2004-08-26T13:36:23Z → 2004-08-27T10:39:56Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 26th, 11:52–12:40 on the 27th.",
          "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 26th and 48 of 48 on the 27th.",
          "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 21622 s"
        },
        {
          "step": "ruling",
          "text": "Dāmodara Dvādaśī, Beijing, 2004: Friday 27 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": "2004-08-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Dāmodara Dvādaśī 2004 falls on Friday 27 August. Dvādaśī runs from 21:36 on Thu 26 Aug to 18:40 on Fri 27 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-08-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 811,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-08-27T18:39:56+08:00",
          "utc": "2004-08-27T10:39:56Z",
          "ms": 1093603196434.706
        },
        "end": {
          "local": "2004-08-28T15:42:55+08:00",
          "utc": "2004-08-28T07:42:55Z",
          "ms": 1093678974699.247
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-27T18:39:56+08:00",
          "utc": "2004-08-27T10:39:56Z",
          "ms": 1093603196434.706
        },
        "end": {
          "local": "2004-08-28T15:42:55+08:00",
          "utc": "2004-08-28T07:42:55Z",
          "ms": 1093678974699.247
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-08-27",
          "window": {
            "start": {
              "local": "2004-08-27T18:53:27+08:00",
              "utc": "2004-08-27T10:53:27Z",
              "ms": 1093604006982.9137
            },
            "end": {
              "local": "2004-08-27T20:19:28+08:00",
              "utc": "2004-08-27T12:19:28Z",
              "ms": 1093609168467.7069
            }
          },
          "covered_min": 86,
          "window_min": 86,
          "qualifies": true
        },
        {
          "local_date": "2004-08-28",
          "window": {
            "start": {
              "local": "2004-08-28T18:51:55+08:00",
              "utc": "2004-08-28T10:51:55Z",
              "ms": 1093690315166.1478
            },
            "end": {
              "local": "2004-08-28T20:18:16+08:00",
              "utc": "2004-08-28T12:18:16Z",
              "ms": 1093695496416.0078
            }
          },
          "covered_min": 0,
          "window_min": 86,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 18:40 on Fri 27 Aug to 15:43 on Sat 28 Aug.",
          "fact": "2004-08-27T10:39:56Z → 2004-08-28T07:42:55Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:19 on the 27th, 18:52–20:18 on the 28th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 86 of 86 minutes on the 27th and 0 of 86 on the 28th.",
          "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 811 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Friday 27 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": "2004-08-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Friday 27 August. Trayodaśī runs from 18:40 on Fri 27 Aug to 15:43 on Sat 28 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-08-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/raksha-bandhana",
      "festival": "raksha-bandhana",
      "name": "Rakṣā Bandhana",
      "everyday": "Rakhi",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-29",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 16905,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-08-29T12:53:58+08:00",
          "utc": "2004-08-29T04:53:58Z",
          "ms": 1093755237543.5614
        },
        "end": {
          "local": "2004-08-30T10:22:16+08:00",
          "utc": "2004-08-30T02:22:16Z",
          "ms": 1093832536001.435
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "second-half",
        "start": {
          "local": "2004-08-29T23:35:23+08:00",
          "utc": "2004-08-29T15:35:23Z",
          "ms": 1093793722534.1913
        },
        "end": {
          "local": "2004-08-30T10:22:16+08:00",
          "utc": "2004-08-30T02:22:16Z",
          "ms": 1093832536001.435
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "2004-08-29",
          "window": {
            "start": {
              "local": "2004-08-29T05:39:35+08:00",
              "utc": "2004-08-28T21:39:35Z",
              "ms": 1093729174540.0974
            },
            "end": {
              "local": "2004-08-30T05:40:31+08:00",
              "utc": "2004-08-29T21:40:31Z",
              "ms": 1093815630898.582
            }
          },
          "covered_min": 365,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "2004-08-30",
          "window": {
            "start": {
              "local": "2004-08-30T05:40:31+08:00",
              "utc": "2004-08-29T21:40:31Z",
              "ms": 1093815630898.582
            },
            "end": {
              "local": "2004-08-31T05:41:27+08:00",
              "utc": "2004-08-30T21:41:27Z",
              "ms": 1093902087203.2377
            }
          },
          "covered_min": 282,
          "window_min": 1441,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 12:54 on Sun 29 Aug to 10:22 on Mon 30 Aug. Its second half begins at 23:35 on Sun 29 Aug.",
          "fact": "2004-08-29T04:53:58Z → 2004-08-30T02:22:16Z · second half from 2004-08-29T15:35:23Z"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 05:40 on the 29th, and from 05:41 on the 30th.",
          "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 365 of 1441 minutes on the 29th and 282 of 1441 on the 30th.",
          "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 16905 s"
        },
        {
          "step": "ruling",
          "text": "Rakṣā Bandhana, Beijing, 2004: Sunday 29 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": "2004-08-29",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-29",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Rakṣā Bandhana (Rakhi) 2004 falls on Sunday 29 August. The second half of Pūrṇimā runs from 23:35 on Sun 29 Aug to 10:22 on Mon 30 Aug and falls on two days: 365 minutes of it on the 29th, 282 on the 30th; 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/beijing/festivals/2004/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": "/beijing/festivals/2004/rishi-tarpana",
      "festival": "rishi-tarpana",
      "name": "Ṛṣi Tarpaṇa",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 899,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-08-29T12:53:58+08:00",
          "utc": "2004-08-29T04:53:58Z",
          "ms": 1093755237543.5614
        },
        "end": {
          "local": "2004-08-30T10:22:16+08:00",
          "utc": "2004-08-30T02:22:16Z",
          "ms": 1093832536001.435
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-29T12:53:58+08:00",
          "utc": "2004-08-29T04:53:58Z",
          "ms": 1093755237543.5614
        },
        "end": {
          "local": "2004-08-30T10:22:16+08:00",
          "utc": "2004-08-30T02:22:16Z",
          "ms": 1093832536001.435
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-08-29",
          "window": {
            "start": {
              "local": "2004-08-29T11:50:59+08:00",
              "utc": "2004-08-29T03:50:59Z",
              "ms": 1093751458617.9236
            },
            "end": {
              "local": "2004-08-29T12:38:59+08:00",
              "utc": "2004-08-29T04:38:59Z",
              "ms": 1093754338617.9236
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-08-30",
          "window": {
            "start": {
              "local": "2004-08-30T11:50:40+08:00",
              "utc": "2004-08-30T03:50:40Z",
              "ms": 1093837840251.4551
            },
            "end": {
              "local": "2004-08-30T12:38:40+08:00",
              "utc": "2004-08-30T04:38:40Z",
              "ms": 1093840720251.4551
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 12:54 on Sun 29 Aug to 10:22 on Mon 30 Aug.",
          "fact": "2004-08-29T04:53:58Z → 2004-08-30T02:22:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 29th, 11:51–12:39 on the 30th.",
          "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 29th and 0 of 48 on the 30th.",
          "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 899 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Tarpaṇa, Beijing, 2004: Monday 30 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": "2004-08-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Ṛṣi Tarpaṇa 2004 falls on Monday 30 August. Pūrṇimā runs from 12:54 on Sun 29 Aug to 10:22 on Mon 30 Aug, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ashunya-shayana-vrata",
      "festival": "ashunya-shayana-vrata",
      "name": "Aśūnya Śayana Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-08-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39804,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2004-08-31T08:16:58+08:00",
          "utc": "2004-08-31T00:16:58Z",
          "ms": 1093911418465.0414
        },
        "end": {
          "local": "2004-09-01T06:46:28+08:00",
          "utc": "2004-08-31T22:46:28Z",
          "ms": 1093992388441.3832
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-08-31T08:16:58+08:00",
          "utc": "2004-08-31T00:16:58Z",
          "ms": 1093911418465.0414
        },
        "end": {
          "local": "2004-09-01T06:46:28+08:00",
          "utc": "2004-08-31T22:46:28Z",
          "ms": 1093992388441.3832
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-08-30",
          "window": {
            "start": {
              "local": "2004-08-30T19:18:00+08:00",
              "utc": "2004-08-30T11:18:00Z",
              "ms": 1093864680292.3022
            },
            "end": {
              "local": "2004-08-30T19:18:00+08:00",
              "utc": "2004-08-30T11:18:00Z",
              "ms": 1093864680292.3022
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-08-31",
          "window": {
            "start": {
              "local": "2004-08-31T19:43:04+08:00",
              "utc": "2004-08-31T11:43:04Z",
              "ms": 1093952584120.1954
            },
            "end": {
              "local": "2004-08-31T19:43:04+08:00",
              "utc": "2004-08-31T11:43:04Z",
              "ms": 1093952584120.1954
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 08:17 on Tue 31 Aug to 06:46 on Wed 1 Sep.",
          "fact": "2004-08-31T00:16:58Z → 2004-08-31T22:46:28Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:18 on the 30th and 19:43 on the 31st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is not on the 30th and is on the 31st.",
          "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 39804 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata, Beijing, 2004: Tuesday 31 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": "2004-08-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-08-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Aśūnya Śayana Vrata 2004 falls on Tuesday 31 August. Dvitīyā runs from 08:17 on Tue 31 Aug to 06:46 on Wed 1 Sep and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/kajjali-tritiya",
      "festival": "kajjali-tritiya",
      "name": "Kajjalī Tṛtīyā",
      "everyday": "Kajari Teej",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18214,
      "anga": {
        "type": "tithi",
        "index": 17,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2004-09-01T06:46:28+08:00",
          "utc": "2004-08-31T22:46:28Z",
          "ms": 1093992388441.3832
        },
        "end": {
          "local": "2004-09-02T05:57:33+08:00",
          "utc": "2004-09-01T21:57:33Z",
          "ms": 1094075852573.3812
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-01T06:46:28+08:00",
          "utc": "2004-08-31T22:46:28Z",
          "ms": 1093992388441.3832
        },
        "end": {
          "local": "2004-09-02T05:57:33+08:00",
          "utc": "2004-09-01T21:57:33Z",
          "ms": 1094075852573.3812
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-01",
          "window": {
            "start": {
              "local": "2004-09-01T11:50:03+08:00",
              "utc": "2004-09-01T03:50:03Z",
              "ms": 1094010602575.1547
            },
            "end": {
              "local": "2004-09-01T12:38:03+08:00",
              "utc": "2004-09-01T04:38:03Z",
              "ms": 1094013482575.1547
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-09-02",
          "window": {
            "start": {
              "local": "2004-09-02T11:49:43+08:00",
              "utc": "2004-09-02T03:49:43Z",
              "ms": 1094096983306.5454
            },
            "end": {
              "local": "2004-09-02T12:37:43+08:00",
              "utc": "2004-09-02T04:37:43Z",
              "ms": 1094099863306.5454
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 06:46 on Wed 1 Sep to 05:58 on Thu 2 Sep.",
          "fact": "2004-08-31T22:46:28Z → 2004-09-01T21:57:33Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 1st, 11:50–12:38 on the 2nd.",
          "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 1st and 0 of 48 on the 2nd.",
          "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 18214 s"
        },
        {
          "step": "ruling",
          "text": "Kajjalī Tṛtīyā, Beijing, 2004: Wednesday 1 September.",
          "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": "2004-09-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kajjalī Tṛtīyā (Kajari Teej) 2004 falls on Wednesday 1 September. Tṛtīyā runs from 06:46 on Wed 1 Sep to 05:58 on Thu 2 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/bahula-chaturthi",
      "festival": "bahula-chaturthi",
      "name": "Bahulā Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36625,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-09-02T05:57:33+08:00",
          "utc": "2004-09-01T21:57:33Z",
          "ms": 1094075852573.3812
        },
        "end": {
          "local": "2004-09-03T05:54:20+08:00",
          "utc": "2004-09-02T21:54:20Z",
          "ms": 1094162060192.7072
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-02T05:57:33+08:00",
          "utc": "2004-09-01T21:57:33Z",
          "ms": 1094075852573.3812
        },
        "end": {
          "local": "2004-09-03T05:54:20+08:00",
          "utc": "2004-09-02T21:54:20Z",
          "ms": 1094162060192.7072
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2004-09-02",
          "window": {
            "start": {
              "local": "2004-09-02T16:07:57+08:00",
              "utc": "2004-09-02T08:07:57Z",
              "ms": 1094112477476.727
            },
            "end": {
              "local": "2004-09-02T18:44:07+08:00",
              "utc": "2004-09-02T10:44:07Z",
              "ms": 1094121846923.5148
            }
          },
          "covered_min": 156,
          "window_min": 156,
          "qualifies": true
        },
        {
          "local_date": "2004-09-03",
          "window": {
            "start": {
              "local": "2004-09-03T16:06:53+08:00",
              "utc": "2004-09-03T08:06:53Z",
              "ms": 1094198812510.4695
            },
            "end": {
              "local": "2004-09-03T18:42:32+08:00",
              "utc": "2004-09-03T10:42:32Z",
              "ms": 1094208151665.5925
            }
          },
          "covered_min": 0,
          "window_min": 156,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 05:58 on Thu 2 Sep to 05:54 on Fri 3 Sep.",
          "fact": "2004-09-01T21:57:33Z → 2004-09-02T21:54:20Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:08–18:44 on the 2nd, 16:07–18:43 on the 3rd.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during sāyāhna. It covers 156 of 156 minutes on the 2nd and 0 of 156 on the 3rd.",
          "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 36625 s"
        },
        {
          "step": "ruling",
          "text": "Bahulā Caturthī, Beijing, 2004: Thursday 2 September.",
          "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": "2004-09-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Bahulā Caturthī 2004 falls on Thursday 2 September. Caturthī runs from 05:58 on Thu 2 Sep to 05:54 on Fri 3 Sep and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-09-02",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33899,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-09-02T05:57:33+08:00",
          "utc": "2004-09-01T21:57:33Z",
          "ms": 1094075852573.3812
        },
        "end": {
          "local": "2004-09-03T05:54:20+08:00",
          "utc": "2004-09-02T21:54:20Z",
          "ms": 1094162060192.7072
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-02T05:57:33+08:00",
          "utc": "2004-09-01T21:57:33Z",
          "ms": 1094075852573.3812
        },
        "end": {
          "local": "2004-09-03T05:54:20+08:00",
          "utc": "2004-09-02T21:54:20Z",
          "ms": 1094162060192.7072
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-09-01",
          "window": {
            "start": {
              "local": "2004-09-01T20:06:21+08:00",
              "utc": "2004-09-01T12:06:21Z",
              "ms": 1094040381034.4974
            },
            "end": {
              "local": "2004-09-01T20:06:21+08:00",
              "utc": "2004-09-01T12:06:21Z",
              "ms": 1094040381034.4974
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-09-02",
          "window": {
            "start": {
              "local": "2004-09-02T20:29:21+08:00",
              "utc": "2004-09-02T12:29:21Z",
              "ms": 1094128160863.5735
            },
            "end": {
              "local": "2004-09-02T20:29:21+08:00",
              "utc": "2004-09-02T12:29:21Z",
              "ms": 1094128160863.5735
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 05:58 on Thu 2 Sep to 05:54 on Fri 3 Sep.",
          "fact": "2004-09-01T21:57:33Z → 2004-09-02T21:54:20Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:06 on the 1st and 20:29 on the 2nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 1st and is on the 2nd.",
          "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 33899 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Thursday 2 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": "2004-09-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Thursday 2 September. Caturthī runs from 05:58 on Thu 2 Sep to 05:54 on Fri 3 Sep and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-09-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/hala-shashthi",
      "festival": "hala-shashthi",
      "name": "Hala Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13560,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2004-09-04T06:37:22+08:00",
          "utc": "2004-09-03T22:37:22Z",
          "ms": 1094251041960.3629
        },
        "end": {
          "local": "2004-09-05T08:02:44+08:00",
          "utc": "2004-09-05T00:02:44Z",
          "ms": 1094342563630.2329
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-04T06:37:22+08:00",
          "utc": "2004-09-03T22:37:22Z",
          "ms": 1094251041960.3629
        },
        "end": {
          "local": "2004-09-05T08:02:44+08:00",
          "utc": "2004-09-05T00:02:44Z",
          "ms": 1094342563630.2329
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-04",
          "window": {
            "start": {
              "local": "2004-09-04T11:49:04+08:00",
              "utc": "2004-09-04T03:49:04Z",
              "ms": 1094269744008.4105
            },
            "end": {
              "local": "2004-09-04T12:37:04+08:00",
              "utc": "2004-09-04T04:37:04Z",
              "ms": 1094272624008.4105
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-09-05",
          "window": {
            "start": {
              "local": "2004-09-05T11:48:44+08:00",
              "utc": "2004-09-05T03:48:44Z",
              "ms": 1094356124017.4626
            },
            "end": {
              "local": "2004-09-05T12:36:44+08:00",
              "utc": "2004-09-05T04:36:44Z",
              "ms": 1094359004017.4626
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 06:37 on Sat 4 Sep to 08:03 on Sun 5 Sep.",
          "fact": "2004-09-03T22:37:22Z → 2004-09-05T00:02:44Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 4th, 11:49–12:37 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. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 13560 s"
        },
        {
          "step": "ruling",
          "text": "Hala Ṣaṣṭhī, Beijing, 2004: Saturday 4 September.",
          "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": "2004-09-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Hala Ṣaṣṭhī 2004 falls on Saturday 4 September. Ṣaṣṭhī runs from 06:37 on Sat 4 Sep to 08:03 on Sun 5 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/shitala-saptami",
      "festival": "shitala-saptami",
      "name": "Śītalā Saptamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6387,
      "anga": {
        "type": "tithi",
        "index": 21,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2004-09-05T08:02:44+08:00",
          "utc": "2004-09-05T00:02:44Z",
          "ms": 1094342563630.2329
        },
        "end": {
          "local": "2004-09-06T10:01:57+08:00",
          "utc": "2004-09-06T02:01:57Z",
          "ms": 1094436117116.7688
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-05T08:02:44+08:00",
          "utc": "2004-09-05T00:02:44Z",
          "ms": 1094342563630.2329
        },
        "end": {
          "local": "2004-09-06T10:01:57+08:00",
          "utc": "2004-09-06T02:01:57Z",
          "ms": 1094436117116.7688
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-05",
          "window": {
            "start": {
              "local": "2004-09-05T11:48:44+08:00",
              "utc": "2004-09-05T03:48:44Z",
              "ms": 1094356124017.4626
            },
            "end": {
              "local": "2004-09-05T12:36:44+08:00",
              "utc": "2004-09-05T04:36:44Z",
              "ms": 1094359004017.4626
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-09-06",
          "window": {
            "start": {
              "local": "2004-09-06T11:48:24+08:00",
              "utc": "2004-09-06T03:48:24Z",
              "ms": 1094442503823.5521
            },
            "end": {
              "local": "2004-09-06T12:36:24+08:00",
              "utc": "2004-09-06T04:36:24Z",
              "ms": 1094445383823.5521
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 08:03 on Sun 5 Sep to 10:02 on Mon 6 Sep.",
          "fact": "2004-09-05T00:02:44Z → 2004-09-06T02:01:57Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 5th, 11:48–12:36 on the 6th.",
          "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 5th and 0 of 48 on the 6th.",
          "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 6387 s"
        },
        {
          "step": "ruling",
          "text": "Śītalā Saptamī, Beijing, 2004: Sunday 5 September.",
          "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": "2004-09-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śītalā Saptamī 2004 falls on Sunday 5 September. Saptamī runs from 08:03 on Sun 5 Sep to 10:02 on Mon 6 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/janmashtami",
      "festival": "janmashtami",
      "name": "Janmāṣṭamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33885,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-09-06T10:01:57+08:00",
          "utc": "2004-09-06T02:01:57Z",
          "ms": 1094436117116.7688
        },
        "end": {
          "local": "2004-09-07T12:22:47+08:00",
          "utc": "2004-09-07T04:22:47Z",
          "ms": 1094530967441.4602
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-06T10:01:57+08:00",
          "utc": "2004-09-06T02:01:57Z",
          "ms": 1094436117116.7688
        },
        "end": {
          "local": "2004-09-07T12:22:47+08:00",
          "utc": "2004-09-07T04:22:47Z",
          "ms": 1094530967441.4602
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-09-05",
          "window": {
            "start": {
              "local": "2004-09-05T23:49:12+08:00",
              "utc": "2004-09-05T15:49:12Z",
              "ms": 1094399352103.5127
            },
            "end": {
              "local": "2004-09-06T00:37:12+08:00",
              "utc": "2004-09-05T16:37:12Z",
              "ms": 1094402232103.5127
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-09-06",
          "window": {
            "start": {
              "local": "2004-09-06T23:48:52+08:00",
              "utc": "2004-09-06T15:48:52Z",
              "ms": 1094485731912.094
            },
            "end": {
              "local": "2004-09-07T00:36:52+08:00",
              "utc": "2004-09-06T16:36:52Z",
              "ms": 1094488611912.094
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 10:02 on Mon 6 Sep to 12:23 on Tue 7 Sep.",
          "fact": "2004-09-06T02:01:57Z → 2004-09-07T04:22:47Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:49–00:37 on the 5th, 23:49–00:37 on the 6th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī 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. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 33885 s"
        },
        {
          "step": "ruling",
          "text": "Janmāṣṭamī, Beijing, 2004: Monday 6 September.",
          "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": "2004-09-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Janmāṣṭamī 2004 falls on Monday 6 September. Aṣṭamī runs from 10:02 on Mon 6 Sep to 12:23 on Tue 7 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-09-10",
      "festival": "ekadashi",
      "name": "Ajā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38208,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-09-09T17:12:16+08:00",
          "utc": "2004-09-09T09:12:16Z",
          "ms": 1094721136443.2334
        },
        "end": {
          "local": "2004-09-10T19:14:57+08:00",
          "utc": "2004-09-10T11:14:57Z",
          "ms": 1094814897334.7201
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-09T17:12:16+08:00",
          "utc": "2004-09-09T09:12:16Z",
          "ms": 1094721136443.2334
        },
        "end": {
          "local": "2004-09-10T19:14:57+08:00",
          "utc": "2004-09-10T11:14:57Z",
          "ms": 1094814897334.7201
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-09-10",
          "window": {
            "start": {
              "local": "2004-09-10T05:50:49+08:00",
              "utc": "2004-09-09T21:50:49Z",
              "ms": 1094766649223.848
            },
            "end": {
              "local": "2004-09-10T05:50:49+08:00",
              "utc": "2004-09-09T21:50:49Z",
              "ms": 1094766649223.848
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-09-11",
          "window": {
            "start": {
              "local": "2004-09-11T05:51:45+08:00",
              "utc": "2004-09-10T21:51:45Z",
              "ms": 1094853105486.1694
            },
            "end": {
              "local": "2004-09-11T05:51:45+08:00",
              "utc": "2004-09-10T21:51:45Z",
              "ms": 1094853105486.1694
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 17:12 on Thu 9 Sep to 19:15 on Fri 10 Sep.",
          "fact": "2004-09-09T09:12:16Z → 2004-09-10T11:14:57Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:51 on the 10th and 05:52 on the 11th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 10th and is not on the 11th.",
          "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 38208 s"
        },
        {
          "step": "ruling",
          "text": "Ajā Ekādaśī, Beijing, 2004: Friday 10 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": "2004-09-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Ajā Ekādaśī 2004 falls on Friday 10 September. Ekādaśī runs from 17:12 on Thu 9 Sep to 19:15 on Fri 10 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-09-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-09-12",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3002,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-09-11T20:50:43+08:00",
          "utc": "2004-09-11T12:50:43Z",
          "ms": 1094907042729.2682
        },
        "end": {
          "local": "2004-09-12T21:55:11+08:00",
          "utc": "2004-09-12T13:55:11Z",
          "ms": 1094997310879.1123
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-11T20:50:43+08:00",
          "utc": "2004-09-11T12:50:43Z",
          "ms": 1094907042729.2682
        },
        "end": {
          "local": "2004-09-12T21:55:11+08:00",
          "utc": "2004-09-12T13:55:11Z",
          "ms": 1094997310879.1123
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-09-11",
          "window": {
            "start": {
              "local": "2004-09-11T18:29:35+08:00",
              "utc": "2004-09-11T10:29:35Z",
              "ms": 1094898575394.0128
            },
            "end": {
              "local": "2004-09-11T20:00:40+08:00",
              "utc": "2004-09-11T12:00:40Z",
              "ms": 1094904040246.182
            }
          },
          "covered_min": 0,
          "window_min": 91,
          "qualifies": false
        },
        {
          "local_date": "2004-09-12",
          "window": {
            "start": {
              "local": "2004-09-12T18:27:57+08:00",
              "utc": "2004-09-12T10:27:57Z",
              "ms": 1094984877021.3768
            },
            "end": {
              "local": "2004-09-12T19:59:23+08:00",
              "utc": "2004-09-12T11:59:23Z",
              "ms": 1094990362502.1268
            }
          },
          "covered_min": 91,
          "window_min": 91,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 20:51 on Sat 11 Sep to 21:55 on Sun 12 Sep.",
          "fact": "2004-09-11T12:50:43Z → 2004-09-12T13:55:11Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:30–20:01 on the 11th, 18:28–19:59 on the 12th.",
          "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 91 minutes on the 11th and 91 of 91 on the 12th.",
          "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 3002 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Sunday 12 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": "2004-09-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-12",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Sunday 12 September. Trayodaśī runs from 20:51 on Sat 11 Sep to 21:55 on Sun 12 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-09-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-09-12",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4741,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-09-12T21:55:11+08:00",
          "utc": "2004-09-12T13:55:11Z",
          "ms": 1094997310879.1123
        },
        "end": {
          "local": "2004-09-13T22:27:26+08:00",
          "utc": "2004-09-13T14:27:26Z",
          "ms": 1095085645932.7986
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-12T21:55:11+08:00",
          "utc": "2004-09-12T13:55:11Z",
          "ms": 1094997310879.1123
        },
        "end": {
          "local": "2004-09-13T22:27:26+08:00",
          "utc": "2004-09-13T14:27:26Z",
          "ms": 1095085645932.7986
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-09-12",
          "window": {
            "start": {
              "local": "2004-09-12T23:46:48+08:00",
              "utc": "2004-09-12T15:46:48Z",
              "ms": 1095004007574.1895
            },
            "end": {
              "local": "2004-09-13T00:34:48+08:00",
              "utc": "2004-09-12T16:34:48Z",
              "ms": 1095006887574.1895
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-09-13",
          "window": {
            "start": {
              "local": "2004-09-13T23:46:26+08:00",
              "utc": "2004-09-13T15:46:26Z",
              "ms": 1095090386481.257
            },
            "end": {
              "local": "2004-09-14T00:34:26+08:00",
              "utc": "2004-09-13T16:34:26Z",
              "ms": 1095093266481.257
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 21:55 on Sun 12 Sep to 22:27 on Mon 13 Sep.",
          "fact": "2004-09-12T13:55:11Z → 2004-09-13T14:27:26Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:47–00:35 on the 12th, 23:46–00:34 on the 13th.",
          "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 12th and 0 of 48 on the 13th.",
          "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 4741 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Sunday 12 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": "2004-09-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Sunday 12 September. Caturdaśī runs from 21:55 on Sun 12 Sep to 22:27 on Mon 13 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-09-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/aghora-chaturdashi",
      "festival": "aghora-chaturdashi",
      "name": "Aghora Caturdaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6948,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-09-12T21:55:11+08:00",
          "utc": "2004-09-12T13:55:11Z",
          "ms": 1094997310879.1123
        },
        "end": {
          "local": "2004-09-13T22:27:26+08:00",
          "utc": "2004-09-13T14:27:26Z",
          "ms": 1095085645932.7986
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-12T21:55:11+08:00",
          "utc": "2004-09-12T13:55:11Z",
          "ms": 1094997310879.1123
        },
        "end": {
          "local": "2004-09-13T22:27:26+08:00",
          "utc": "2004-09-13T14:27:26Z",
          "ms": 1095085645932.7986
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-09-12",
          "window": {
            "start": {
              "local": "2004-09-12T18:27:57+08:00",
              "utc": "2004-09-12T10:27:57Z",
              "ms": 1094984877021.3768
            },
            "end": {
              "local": "2004-09-12T19:59:23+08:00",
              "utc": "2004-09-12T11:59:23Z",
              "ms": 1094990362502.1268
            }
          },
          "covered_min": 0,
          "window_min": 91,
          "qualifies": false
        },
        {
          "local_date": "2004-09-13",
          "window": {
            "start": {
              "local": "2004-09-13T18:26:18+08:00",
              "utc": "2004-09-13T10:26:18Z",
              "ms": 1095071178445.4888
            },
            "end": {
              "local": "2004-09-13T19:58:05+08:00",
              "utc": "2004-09-13T11:58:05Z",
              "ms": 1095076684588.3602
            }
          },
          "covered_min": 92,
          "window_min": 92,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 21:55 on Sun 12 Sep to 22:27 on Mon 13 Sep.",
          "fact": "2004-09-12T13:55:11Z → 2004-09-13T14:27:26Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–19:59 on the 12th, 18:26–19:58 on the 13th.",
          "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 91 minutes on the 12th and 92 of 92 on the 13th.",
          "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 6948 s"
        },
        {
          "step": "ruling",
          "text": "Aghora Caturdaśī, Beijing, 2004: Monday 13 September.",
          "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": "2004-09-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Aghora Caturdaśī 2004 falls on Monday 13 September. Caturdaśī runs from 21:55 on Sun 12 Sep to 22:27 on Mon 13 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/rudra-vrata",
      "festival": "rudra-vrata",
      "name": "Rudra Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34191,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2004-09-14T22:29:03+08:00",
          "utc": "2004-09-14T14:29:03Z",
          "ms": 1095172142996.597
        },
        "end": {
          "local": "2004-09-15T22:03:07+08:00",
          "utc": "2004-09-15T14:03:07Z",
          "ms": 1095256987240.7566
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-14T22:29:03+08:00",
          "utc": "2004-09-14T14:29:03Z",
          "ms": 1095172142996.597
        },
        "end": {
          "local": "2004-09-15T22:03:07+08:00",
          "utc": "2004-09-15T14:03:07Z",
          "ms": 1095256987240.7566
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-14",
          "window": {
            "start": {
              "local": "2004-09-14T11:45:37+08:00",
              "utc": "2004-09-14T03:45:37Z",
              "ms": 1095133537105.3931
            },
            "end": {
              "local": "2004-09-14T12:33:37+08:00",
              "utc": "2004-09-14T04:33:37Z",
              "ms": 1095136417105.3931
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-09-15",
          "window": {
            "start": {
              "local": "2004-09-15T11:45:16+08:00",
              "utc": "2004-09-15T03:45:16Z",
              "ms": 1095219915877.0344
            },
            "end": {
              "local": "2004-09-15T12:33:16+08:00",
              "utc": "2004-09-15T04:33:16Z",
              "ms": 1095222795877.0344
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 22:29 on Tue 14 Sep to 22:03 on Wed 15 Sep.",
          "fact": "2004-09-14T14:29:03Z → 2004-09-15T14:03:07Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 14th, 11:45–12:33 on the 15th.",
          "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 14th and 48 of 48 on the 15th.",
          "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 34191 s"
        },
        {
          "step": "ruling",
          "text": "Rudra Vrata, Beijing, 2004: Wednesday 15 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": "2004-09-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Rudra Vrata 2004 falls on Wednesday 15 September. Pratipadā runs from 22:29 on Tue 14 Sep to 22:03 on Wed 15 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/haritalika-vrata",
      "festival": "haritalika-vrata",
      "name": "Haritālikā Vrata",
      "everyday": "Hartalika Teej",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27049,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2004-09-16T21:13:21+08:00",
          "utc": "2004-09-16T13:13:21Z",
          "ms": 1095340400515.9678
        },
        "end": {
          "local": "2004-09-17T20:03:22+08:00",
          "utc": "2004-09-17T12:03:22Z",
          "ms": 1095422602061.2795
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-16T21:13:21+08:00",
          "utc": "2004-09-16T13:13:21Z",
          "ms": 1095340400515.9678
        },
        "end": {
          "local": "2004-09-17T20:03:22+08:00",
          "utc": "2004-09-17T12:03:22Z",
          "ms": 1095422602061.2795
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-16",
          "window": {
            "start": {
              "local": "2004-09-16T11:44:55+08:00",
              "utc": "2004-09-16T03:44:55Z",
              "ms": 1095306294617.5812
            },
            "end": {
              "local": "2004-09-16T12:32:55+08:00",
              "utc": "2004-09-16T04:32:55Z",
              "ms": 1095309174617.5812
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-09-17",
          "window": {
            "start": {
              "local": "2004-09-17T11:44:33+08:00",
              "utc": "2004-09-17T03:44:33Z",
              "ms": 1095392673342.5121
            },
            "end": {
              "local": "2004-09-17T12:32:33+08:00",
              "utc": "2004-09-17T04:32:33Z",
              "ms": 1095395553342.5121
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 21:13 on Thu 16 Sep to 20:03 on Fri 17 Sep.",
          "fact": "2004-09-16T13:13:21Z → 2004-09-17T12:03:22Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 16th, 11:45–12:33 on the 17th.",
          "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 16th and 48 of 48 on the 17th.",
          "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 27049 s"
        },
        {
          "step": "ruling",
          "text": "Haritālikā Vrata, Beijing, 2004: Friday 17 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": "2004-09-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Haritālikā Vrata (Hartalika Teej) 2004 falls on Friday 17 September. Tṛtīyā runs from 21:13 on Thu 16 Sep to 20:03 on Fri 17 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ganesha-chaturthi",
      "festival": "ganesha-chaturthi",
      "name": "Gaṇeśa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21853,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-09-17T20:03:22+08:00",
          "utc": "2004-09-17T12:03:22Z",
          "ms": 1095422602061.2795
        },
        "end": {
          "local": "2004-09-18T18:36:25+08:00",
          "utc": "2004-09-18T10:36:25Z",
          "ms": 1095503785338.8931
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-17T20:03:22+08:00",
          "utc": "2004-09-17T12:03:22Z",
          "ms": 1095422602061.2795
        },
        "end": {
          "local": "2004-09-18T18:36:25+08:00",
          "utc": "2004-09-18T10:36:25Z",
          "ms": 1095503785338.8931
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-17",
          "window": {
            "start": {
              "local": "2004-09-17T11:44:33+08:00",
              "utc": "2004-09-17T03:44:33Z",
              "ms": 1095392673342.5121
            },
            "end": {
              "local": "2004-09-17T12:32:33+08:00",
              "utc": "2004-09-17T04:32:33Z",
              "ms": 1095395553342.5121
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-09-18",
          "window": {
            "start": {
              "local": "2004-09-18T11:44:12+08:00",
              "utc": "2004-09-18T03:44:12Z",
              "ms": 1095479052069.0571
            },
            "end": {
              "local": "2004-09-18T12:32:12+08:00",
              "utc": "2004-09-18T04:32:12Z",
              "ms": 1095481932069.0571
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:03 on Fri 17 Sep to 18:36 on Sat 18 Sep.",
          "fact": "2004-09-17T12:03:22Z → 2004-09-18T10:36:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 17th, 11:44–12:32 on the 18th.",
          "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 17th and 48 of 48 on the 18th.",
          "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 21853 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Caturthī, Beijing, 2004: Saturday 18 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": "2004-09-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Gaṇeśa Caturthī 2004 falls on Saturday 18 September. Caturthī runs from 20:03 on Fri 17 Sep to 18:36 on Sat 18 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/rishi-panchami",
      "festival": "rishi-panchami",
      "name": "Ṛṣi Pañcamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15800,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2004-09-18T18:36:25+08:00",
          "utc": "2004-09-18T10:36:25Z",
          "ms": 1095503785338.8931
        },
        "end": {
          "local": "2004-09-19T16:55:10+08:00",
          "utc": "2004-09-19T08:55:10Z",
          "ms": 1095584110469.2812
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-18T18:36:25+08:00",
          "utc": "2004-09-18T10:36:25Z",
          "ms": 1095503785338.8931
        },
        "end": {
          "local": "2004-09-19T16:55:10+08:00",
          "utc": "2004-09-19T08:55:10Z",
          "ms": 1095584110469.2812
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-18",
          "window": {
            "start": {
              "local": "2004-09-18T11:44:12+08:00",
              "utc": "2004-09-18T03:44:12Z",
              "ms": 1095479052069.0571
            },
            "end": {
              "local": "2004-09-18T12:32:12+08:00",
              "utc": "2004-09-18T04:32:12Z",
              "ms": 1095481932069.0571
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-09-19",
          "window": {
            "start": {
              "local": "2004-09-19T11:43:51+08:00",
              "utc": "2004-09-19T03:43:51Z",
              "ms": 1095565430813.897
            },
            "end": {
              "local": "2004-09-19T12:31:51+08:00",
              "utc": "2004-09-19T04:31:51Z",
              "ms": 1095568310813.897
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 18:36 on Sat 18 Sep to 16:55 on Sun 19 Sep.",
          "fact": "2004-09-18T10:36:25Z → 2004-09-19T08:55:10Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 18th, 11:44–12:32 on the 19th.",
          "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 18th and 48 of 48 on the 19th.",
          "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 15800 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Pañcamī, Beijing, 2004: Sunday 19 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": "2004-09-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Ṛṣi Pañcamī 2004 falls on Sunday 19 September. Pañcamī runs from 18:36 on Sat 18 Sep to 16:55 on Sun 19 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/surya-shashthi-bhadrapada",
      "festival": "surya-shashthi-bhadrapada",
      "name": "Sūrya Ṣaṣṭhī (Bhādrapada)",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9020,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2004-09-19T16:55:10+08:00",
          "utc": "2004-09-19T08:55:10Z",
          "ms": 1095584110469.2812
        },
        "end": {
          "local": "2004-09-20T15:01:50+08:00",
          "utc": "2004-09-20T07:01:50Z",
          "ms": 1095663710082.8033
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-19T16:55:10+08:00",
          "utc": "2004-09-19T08:55:10Z",
          "ms": 1095584110469.2812
        },
        "end": {
          "local": "2004-09-20T15:01:50+08:00",
          "utc": "2004-09-20T07:01:50Z",
          "ms": 1095663710082.8033
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-19",
          "window": {
            "start": {
              "local": "2004-09-19T11:43:51+08:00",
              "utc": "2004-09-19T03:43:51Z",
              "ms": 1095565430813.897
            },
            "end": {
              "local": "2004-09-19T12:31:51+08:00",
              "utc": "2004-09-19T04:31:51Z",
              "ms": 1095568310813.897
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-09-20",
          "window": {
            "start": {
              "local": "2004-09-20T11:43:30+08:00",
              "utc": "2004-09-20T03:43:30Z",
              "ms": 1095651809594.6031
            },
            "end": {
              "local": "2004-09-20T12:31:30+08:00",
              "utc": "2004-09-20T04:31:30Z",
              "ms": 1095654689594.6031
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 16:55 on Sun 19 Sep to 15:02 on Mon 20 Sep.",
          "fact": "2004-09-19T08:55:10Z → 2004-09-20T07:01:50Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 19th, 11:43–12:31 on the 20th.",
          "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 19th and 48 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 9020 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Beijing, 2004: Monday 20 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": "2004-09-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Sūrya Ṣaṣṭhī (Bhādrapada) 2004 falls on Monday 20 September. Ṣaṣṭhī runs from 16:55 on Sun 19 Sep to 15:02 on Mon 20 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/muktabharana-vrata",
      "festival": "muktabharana-vrata",
      "name": "Muktābharaṇa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1637,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2004-09-20T15:01:50+08:00",
          "utc": "2004-09-20T07:01:50Z",
          "ms": 1095663710082.8033
        },
        "end": {
          "local": "2004-09-21T12:58:25+08:00",
          "utc": "2004-09-21T04:58:25Z",
          "ms": 1095742704979.1779
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-20T15:01:50+08:00",
          "utc": "2004-09-20T07:01:50Z",
          "ms": 1095663710082.8033
        },
        "end": {
          "local": "2004-09-21T12:58:25+08:00",
          "utc": "2004-09-21T04:58:25Z",
          "ms": 1095742704979.1779
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-20",
          "window": {
            "start": {
              "local": "2004-09-20T11:43:30+08:00",
              "utc": "2004-09-20T03:43:30Z",
              "ms": 1095651809594.6031
            },
            "end": {
              "local": "2004-09-20T12:31:30+08:00",
              "utc": "2004-09-20T04:31:30Z",
              "ms": 1095654689594.6031
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-09-21",
          "window": {
            "start": {
              "local": "2004-09-21T11:43:08+08:00",
              "utc": "2004-09-21T03:43:08Z",
              "ms": 1095738188429.5483
            },
            "end": {
              "local": "2004-09-21T12:31:08+08:00",
              "utc": "2004-09-21T04:31:08Z",
              "ms": 1095741068429.5483
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 15:02 on Mon 20 Sep to 12:58 on Tue 21 Sep.",
          "fact": "2004-09-20T07:01:50Z → 2004-09-21T04:58:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 20th, 11:43–12:31 on the 21st.",
          "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 20th and 48 of 48 on the 21st.",
          "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 1637 s"
        },
        {
          "step": "ruling",
          "text": "Muktābharaṇa Vrata, Beijing, 2004: Tuesday 21 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": "2004-09-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Muktābharaṇa Vrata 2004 falls on Tuesday 21 September. Saptamī runs from 15:02 on Mon 20 Sep to 12:58 on Tue 21 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/radhashtami",
      "festival": "radhashtami",
      "name": "Rādhāṣṭamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1637,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-09-21T12:58:25+08:00",
          "utc": "2004-09-21T04:58:25Z",
          "ms": 1095742704979.1779
        },
        "end": {
          "local": "2004-09-22T10:47:05+08:00",
          "utc": "2004-09-22T02:47:05Z",
          "ms": 1095821224834.5157
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-21T12:58:25+08:00",
          "utc": "2004-09-21T04:58:25Z",
          "ms": 1095742704979.1779
        },
        "end": {
          "local": "2004-09-22T10:47:05+08:00",
          "utc": "2004-09-22T02:47:05Z",
          "ms": 1095821224834.5157
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-21",
          "window": {
            "start": {
              "local": "2004-09-21T11:43:08+08:00",
              "utc": "2004-09-21T03:43:08Z",
              "ms": 1095738188429.5483
            },
            "end": {
              "local": "2004-09-21T12:31:08+08:00",
              "utc": "2004-09-21T04:31:08Z",
              "ms": 1095741068429.5483
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-09-22",
          "window": {
            "start": {
              "local": "2004-09-22T11:42:47+08:00",
              "utc": "2004-09-22T03:42:47Z",
              "ms": 1095824567338.0287
            },
            "end": {
              "local": "2004-09-22T12:30:47+08:00",
              "utc": "2004-09-22T04:30:47Z",
              "ms": 1095827447338.0287
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 12:58 on Tue 21 Sep to 10:47 on Wed 22 Sep.",
          "fact": "2004-09-21T04:58:25Z → 2004-09-22T02:47:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 21st, 11:43–12:31 on the 22nd.",
          "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 21st and 0 of 48 on the 22nd.",
          "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 1637 s"
        },
        {
          "step": "ruling",
          "text": "Rādhāṣṭamī, Beijing, 2004: Wednesday 22 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": "2004-09-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Rādhāṣṭamī 2004 falls on Wednesday 22 September. Aṣṭamī runs from 12:58 on Tue 21 Sep to 10:47 on Wed 22 Sep, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-09-24",
      "festival": "ekadashi",
      "name": "Parivartanī Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 479,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-09-24T06:12:01+08:00",
          "utc": "2004-09-23T22:12:01Z",
          "ms": 1095977521355.1074
        },
        "end": {
          "local": "2004-09-25T03:56:01+08:00",
          "utc": "2004-09-24T19:56:01Z",
          "ms": 1096055760806.793
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-24T06:12:01+08:00",
          "utc": "2004-09-23T22:12:01Z",
          "ms": 1095977521355.1074
        },
        "end": {
          "local": "2004-09-25T03:56:01+08:00",
          "utc": "2004-09-24T19:56:01Z",
          "ms": 1096055760806.793
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-09-24",
          "window": {
            "start": {
              "local": "2004-09-24T06:04:02+08:00",
              "utc": "2004-09-23T22:04:02Z",
              "ms": 1095977042371.9617
            },
            "end": {
              "local": "2004-09-24T06:04:02+08:00",
              "utc": "2004-09-23T22:04:02Z",
              "ms": 1095977042371.9617
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-09-25",
          "window": {
            "start": {
              "local": "2004-09-25T06:05:00+08:00",
              "utc": "2004-09-24T22:05:00Z",
              "ms": 1096063499723.7866
            },
            "end": {
              "local": "2004-09-25T06:05:00+08:00",
              "utc": "2004-09-24T22:05:00Z",
              "ms": 1096063499723.7866
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:12 on Fri 24 Sep to 03:56 on Sat 25 Sep.",
          "fact": "2004-09-23T22:12:01Z → 2004-09-24T19:56:01Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:04 on the 24th and 06:05 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 not on the 25th.",
          "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 479 s"
        },
        {
          "step": "ruling",
          "text": "Parivartanī Ekādaśī, Beijing, 2004: Friday 24 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": "2004-09-24",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Parivartanī Ekādaśī 2004 falls on Friday 24 September. Ekādaśī runs from 06:12 on Fri 24 Sep to 03:56 on Sat 25 Sep, and is current at sunrise on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-09-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/vamana-jayanti",
      "festival": "vamana-jayanti",
      "name": "Vāmana Jayantī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27944,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2004-09-25T03:56:01+08:00",
          "utc": "2004-09-24T19:56:01Z",
          "ms": 1096055760806.793
        },
        "end": {
          "local": "2004-09-26T01:47:39+08:00",
          "utc": "2004-09-25T17:47:39Z",
          "ms": 1096134458582.4086
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-25T03:56:01+08:00",
          "utc": "2004-09-24T19:56:01Z",
          "ms": 1096055760806.793
        },
        "end": {
          "local": "2004-09-26T01:47:39+08:00",
          "utc": "2004-09-25T17:47:39Z",
          "ms": 1096134458582.4086
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-09-25",
          "window": {
            "start": {
              "local": "2004-09-25T11:41:45+08:00",
              "utc": "2004-09-25T03:41:45Z",
              "ms": 1096083704712.7344
            },
            "end": {
              "local": "2004-09-25T12:29:45+08:00",
              "utc": "2004-09-25T04:29:45Z",
              "ms": 1096086584712.7344
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-09-26",
          "window": {
            "start": {
              "local": "2004-09-26T11:41:24+08:00",
              "utc": "2004-09-26T03:41:24Z",
              "ms": 1096170084128.3009
            },
            "end": {
              "local": "2004-09-26T12:29:24+08:00",
              "utc": "2004-09-26T04:29:24Z",
              "ms": 1096172964128.3009
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 03:56 on Sat 25 Sep to 01:48 on Sun 26 Sep.",
          "fact": "2004-09-24T19:56:01Z → 2004-09-25T17:47:39Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 25th, 11:41–12:29 on the 26th.",
          "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 25th and 0 of 48 on the 26th.",
          "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 27944 s"
        },
        {
          "step": "ruling",
          "text": "Vāmana Jayantī, Beijing, 2004: Saturday 25 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": "2004-09-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vāmana Jayantī 2004 falls on Saturday 25 September. Dvādaśī runs from 03:56 on Sat 25 Sep to 01:48 on Sun 26 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-09-26",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15102,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-09-26T01:47:39+08:00",
          "utc": "2004-09-25T17:47:39Z",
          "ms": 1096134458582.4086
        },
        "end": {
          "local": "2004-09-26T23:52:50+08:00",
          "utc": "2004-09-26T15:52:50Z",
          "ms": 1096213969924.9722
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-26T01:47:39+08:00",
          "utc": "2004-09-25T17:47:39Z",
          "ms": 1096134458582.4086
        },
        "end": {
          "local": "2004-09-26T23:52:50+08:00",
          "utc": "2004-09-26T15:52:50Z",
          "ms": 1096213969924.9722
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-09-25",
          "window": {
            "start": {
              "local": "2004-09-25T18:06:30+08:00",
              "utc": "2004-09-25T10:06:30Z",
              "ms": 1096106789701.6821
            },
            "end": {
              "local": "2004-09-25T19:42:25+08:00",
              "utc": "2004-09-25T11:42:25Z",
              "ms": 1096112545371.3617
            }
          },
          "covered_min": 0,
          "window_min": 96,
          "qualifies": false
        },
        {
          "local_date": "2004-09-26",
          "window": {
            "start": {
              "local": "2004-09-26T18:04:51+08:00",
              "utc": "2004-09-26T10:04:51Z",
              "ms": 1096193091032.3232
            },
            "end": {
              "local": "2004-09-26T19:41:08+08:00",
              "utc": "2004-09-26T11:41:08Z",
              "ms": 1096198867546.6099
            }
          },
          "covered_min": 96,
          "window_min": 96,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 01:48 on Sun 26 Sep to 23:53 on Sun 26 Sep.",
          "fact": "2004-09-25T17:47:39Z → 2004-09-26T15:52:50Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:06–19:42 on the 25th, 18:05–19:41 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 0 of 96 minutes on the 25th and 96 of 96 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 15102 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Sunday 26 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": "2004-09-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Sunday 26 September. Trayodaśī runs from 01:48 on Sun 26 Sep to 23:53 on Sun 26 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-09-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ananta-chaturdashi",
      "festival": "ananta-chaturdashi",
      "name": "Ananta Caturdaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-09-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22445,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-09-26T23:52:50+08:00",
          "utc": "2004-09-26T15:52:50Z",
          "ms": 1096213969924.9722
        },
        "end": {
          "local": "2004-09-27T22:17:56+08:00",
          "utc": "2004-09-27T14:17:56Z",
          "ms": 1096294675982.0908
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-09-26T23:52:50+08:00",
          "utc": "2004-09-26T15:52:50Z",
          "ms": 1096213969924.9722
        },
        "end": {
          "local": "2004-09-27T22:17:56+08:00",
          "utc": "2004-09-27T14:17:56Z",
          "ms": 1096294675982.0908
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "2004-09-27",
          "window": {
            "start": {
              "local": "2004-09-27T06:06:55+08:00",
              "utc": "2004-09-26T22:06:55Z",
              "ms": 1096236414889.4731
            },
            "end": {
              "local": "2004-09-27T08:30:10+08:00",
              "utc": "2004-09-27T00:30:10Z",
              "ms": 1096245010425.0304
            }
          },
          "covered_min": 143,
          "window_min": 143,
          "qualifies": true
        },
        {
          "local_date": "2004-09-28",
          "window": {
            "start": {
              "local": "2004-09-28T06:07:53+08:00",
              "utc": "2004-09-27T22:07:53Z",
              "ms": 1096322872736.2706
            },
            "end": {
              "local": "2004-09-28T08:30:37+08:00",
              "utc": "2004-09-28T00:30:37Z",
              "ms": 1096331437056.6472
            }
          },
          "covered_min": 0,
          "window_min": 143,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 23:53 on Sun 26 Sep to 22:18 on Mon 27 Sep.",
          "fact": "2004-09-26T15:52:50Z → 2004-09-27T14:17:56Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:07–08:30 on the 27th, 06:08–08:31 on the 28th.",
          "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 143 of 143 minutes on the 27th and 0 of 143 on the 28th.",
          "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 22445 s"
        },
        {
          "step": "ruling",
          "text": "Ananta Caturdaśī, Beijing, 2004: Monday 27 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": "2004-09-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-09-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Ananta Caturdaśī 2004 falls on Monday 27 September. Caturdaśī runs from 23:53 on Sun 26 Sep to 22:18 on Mon 27 Sep and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-10-02",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6698,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-10-01T21:10:53+08:00",
          "utc": "2004-10-01T13:10:53Z",
          "ms": 1096636252787.529
        },
        "end": {
          "local": "2004-10-02T22:27:08+08:00",
          "utc": "2004-10-02T14:27:08Z",
          "ms": 1096727227761.4763
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-01T21:10:53+08:00",
          "utc": "2004-10-01T13:10:53Z",
          "ms": 1096636252787.529
        },
        "end": {
          "local": "2004-10-02T22:27:08+08:00",
          "utc": "2004-10-02T14:27:08Z",
          "ms": 1096727227761.4763
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-10-01",
          "window": {
            "start": {
              "local": "2004-10-01T19:19:15+08:00",
              "utc": "2004-10-01T11:19:15Z",
              "ms": 1096629555190.8351
            },
            "end": {
              "local": "2004-10-01T19:19:15+08:00",
              "utc": "2004-10-01T11:19:15Z",
              "ms": 1096629555190.8351
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-10-02",
          "window": {
            "start": {
              "local": "2004-10-02T19:48:04+08:00",
              "utc": "2004-10-02T11:48:04Z",
              "ms": 1096717684216.669
            },
            "end": {
              "local": "2004-10-02T19:48:04+08:00",
              "utc": "2004-10-02T11:48:04Z",
              "ms": 1096717684216.669
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 21:11 on Fri 1 Oct to 22:27 on Sat 2 Oct.",
          "fact": "2004-10-01T13:10:53Z → 2004-10-02T14:27:08Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:19 on the 1st and 19:48 on the 2nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 1st and is on the 2nd.",
          "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 6698 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Saturday 2 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": "2004-10-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Saturday 2 October. Caturthī runs from 21:11 on Fri 1 Oct to 22:27 on Sat 2 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-10-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/chandra-shashthi",
      "festival": "chandra-shashthi",
      "name": "Candra Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14092,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2004-10-04T00:16:36+08:00",
          "utc": "2004-10-03T16:16:36Z",
          "ms": 1096820196465.6383
        },
        "end": {
          "local": "2004-10-05T02:30:48+08:00",
          "utc": "2004-10-04T18:30:48Z",
          "ms": 1096914647680.346
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-04T00:16:36+08:00",
          "utc": "2004-10-03T16:16:36Z",
          "ms": 1096820196465.6383
        },
        "end": {
          "local": "2004-10-05T02:30:48+08:00",
          "utc": "2004-10-04T18:30:48Z",
          "ms": 1096914647680.346
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-10-03",
          "window": {
            "start": {
              "local": "2004-10-03T20:21:44+08:00",
              "utc": "2004-10-03T12:21:44Z",
              "ms": 1096806104382.424
            },
            "end": {
              "local": "2004-10-03T20:21:44+08:00",
              "utc": "2004-10-03T12:21:44Z",
              "ms": 1096806104382.424
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-10-04",
          "window": {
            "start": {
              "local": "2004-10-04T21:01:36+08:00",
              "utc": "2004-10-04T13:01:36Z",
              "ms": 1096894895964.6299
            },
            "end": {
              "local": "2004-10-04T21:01:36+08:00",
              "utc": "2004-10-04T13:01:36Z",
              "ms": 1096894895964.6299
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 00:17 on Mon 4 Oct to 02:31 on Tue 5 Oct.",
          "fact": "2004-10-03T16:16:36Z → 2004-10-04T18:30:48Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:22 on the 3rd and 21:02 on the 4th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 3rd and is on the 4th.",
          "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 14092 s"
        },
        {
          "step": "ruling",
          "text": "Candra Ṣaṣṭhī, Beijing, 2004: Monday 4 October.",
          "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": "2004-10-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Candra Ṣaṣṭhī 2004 falls on Monday 4 October. Ṣaṣṭhī runs from 00:17 on Mon 4 Oct to 02:31 on Tue 5 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/jitashtami",
      "festival": "jitashtami",
      "name": "Jitāṣṭamī",
      "everyday": "Jitiya",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34089,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-10-06T04:57:49+08:00",
          "utc": "2004-10-05T20:57:49Z",
          "ms": 1097009868638.5076
        },
        "end": {
          "local": "2004-10-07T07:23:50+08:00",
          "utc": "2004-10-06T23:23:50Z",
          "ms": 1097105030247.316
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-06T04:57:49+08:00",
          "utc": "2004-10-05T20:57:49Z",
          "ms": 1097009868638.5076
        },
        "end": {
          "local": "2004-10-07T07:23:50+08:00",
          "utc": "2004-10-06T23:23:50Z",
          "ms": 1097105030247.316
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-10-05",
          "window": {
            "start": {
              "local": "2004-10-05T17:50:16+08:00",
              "utc": "2004-10-05T09:50:16Z",
              "ms": 1096969816000.9407
            },
            "end": {
              "local": "2004-10-05T19:29:40+08:00",
              "utc": "2004-10-05T11:29:40Z",
              "ms": 1096975779728.267
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        },
        {
          "local_date": "2004-10-06",
          "window": {
            "start": {
              "local": "2004-10-06T17:48:41+08:00",
              "utc": "2004-10-06T09:48:41Z",
              "ms": 1097056120799.1212
            },
            "end": {
              "local": "2004-10-06T19:28:25+08:00",
              "utc": "2004-10-06T11:28:25Z",
              "ms": 1097062105240.4496
            }
          },
          "covered_min": 100,
          "window_min": 100,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 04:58 on Wed 6 Oct to 07:24 on Thu 7 Oct.",
          "fact": "2004-10-05T20:57:49Z → 2004-10-06T23:23:50Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:50–19:30 on the 5th, 17:49–19:28 on the 6th.",
          "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 99 minutes on the 5th and 100 of 100 on the 6th.",
          "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 34089 s"
        },
        {
          "step": "ruling",
          "text": "Jitāṣṭamī, Beijing, 2004: Wednesday 6 October.",
          "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": "2004-10-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Jitāṣṭamī (Jitiya) 2004 falls on Wednesday 6 October. Aṣṭamī runs from 04:58 on Wed 6 Oct to 07:24 on Thu 7 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/mahalakshmi-vrata-samapana",
      "festival": "mahalakshmi-vrata-samapana",
      "name": "Mahālakṣmī Vrata Samāpana",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25761,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-10-06T04:57:49+08:00",
          "utc": "2004-10-05T20:57:49Z",
          "ms": 1097009868638.5076
        },
        "end": {
          "local": "2004-10-07T07:23:50+08:00",
          "utc": "2004-10-06T23:23:50Z",
          "ms": 1097105030247.316
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-06T04:57:49+08:00",
          "utc": "2004-10-05T20:57:49Z",
          "ms": 1097009868638.5076
        },
        "end": {
          "local": "2004-10-07T07:23:50+08:00",
          "utc": "2004-10-06T23:23:50Z",
          "ms": 1097105030247.316
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-10-05",
          "window": {
            "start": {
              "local": "2004-10-05T21:48:27+08:00",
              "utc": "2004-10-05T13:48:27Z",
              "ms": 1096984107377.431
            },
            "end": {
              "local": "2004-10-05T21:48:27+08:00",
              "utc": "2004-10-05T13:48:27Z",
              "ms": 1096984107377.431
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-10-06",
          "window": {
            "start": {
              "local": "2004-10-06T22:42:07+08:00",
              "utc": "2004-10-06T14:42:07Z",
              "ms": 1097073726980.4537
            },
            "end": {
              "local": "2004-10-06T22:42:07+08:00",
              "utc": "2004-10-06T14:42:07Z",
              "ms": 1097073726980.4537
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 04:58 on Wed 6 Oct to 07:24 on Thu 7 Oct.",
          "fact": "2004-10-05T20:57:49Z → 2004-10-06T23:23:50Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:48 on the 5th and 22:42 on the 6th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is not on the 5th and is on the 6th.",
          "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: unstated → only-day · margin 25761 s"
        },
        {
          "step": "ruling",
          "text": "Mahālakṣmī Vrata Samāpana, Beijing, 2004: Wednesday 6 October.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "2004-10-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Mahālakṣmī Vrata Samāpana 2004 falls on Wednesday 6 October. Aṣṭamī runs from 04:58 on Wed 6 Oct to 07:24 on Thu 7 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-10-10",
      "festival": "ekadashi",
      "name": "Indirā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18067,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-10-09T11:19:53+08:00",
          "utc": "2004-10-09T03:19:53Z",
          "ms": 1097291992712.2081
        },
        "end": {
          "local": "2004-10-10T12:29:53+08:00",
          "utc": "2004-10-10T04:29:53Z",
          "ms": 1097382592533.269
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-09T11:19:53+08:00",
          "utc": "2004-10-09T03:19:53Z",
          "ms": 1097291992712.2081
        },
        "end": {
          "local": "2004-10-10T12:29:53+08:00",
          "utc": "2004-10-10T04:29:53Z",
          "ms": 1097382592533.269
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-10-09",
          "window": {
            "start": {
              "local": "2004-10-09T06:18:45+08:00",
              "utc": "2004-10-08T22:18:45Z",
              "ms": 1097273925353.8401
            },
            "end": {
              "local": "2004-10-09T06:18:45+08:00",
              "utc": "2004-10-08T22:18:45Z",
              "ms": 1097273925353.8401
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-10-10",
          "window": {
            "start": {
              "local": "2004-10-10T06:19:46+08:00",
              "utc": "2004-10-09T22:19:46Z",
              "ms": 1097360386457.5775
            },
            "end": {
              "local": "2004-10-10T06:19:46+08:00",
              "utc": "2004-10-09T22:19:46Z",
              "ms": 1097360386457.5775
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 11:20 on Sat 9 Oct to 12:30 on Sun 10 Oct.",
          "fact": "2004-10-09T03:19:53Z → 2004-10-10T04:29:53Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:19 on the 9th and 06:20 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 on the 10th.",
          "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 18067 s"
        },
        {
          "step": "ruling",
          "text": "Indirā Ekādaśī, Beijing, 2004: Sunday 10 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": "2004-10-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Indirā Ekādaśī 2004 falls on Sunday 10 October. Ekādaśī runs from 11:20 on Sat 9 Oct to 12:30 on Sun 10 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-10-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-10-11",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16804,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-10-11T13:00:49+08:00",
          "utc": "2004-10-11T05:00:49Z",
          "ms": 1097470848856.4012
        },
        "end": {
          "local": "2004-10-12T12:52:10+08:00",
          "utc": "2004-10-12T04:52:10Z",
          "ms": 1097556730343.3353
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-11T13:00:49+08:00",
          "utc": "2004-10-11T05:00:49Z",
          "ms": 1097470848856.4012
        },
        "end": {
          "local": "2004-10-12T12:52:10+08:00",
          "utc": "2004-10-12T04:52:10Z",
          "ms": 1097556730343.3353
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-10-11",
          "window": {
            "start": {
              "local": "2004-10-11T17:40:53+08:00",
              "utc": "2004-10-11T09:40:53Z",
              "ms": 1097487653232.0819
            },
            "end": {
              "local": "2004-10-11T19:22:21+08:00",
              "utc": "2004-10-11T11:22:21Z",
              "ms": 1097493740754.3054
            }
          },
          "covered_min": 101,
          "window_min": 101,
          "qualifies": true
        },
        {
          "local_date": "2004-10-12",
          "window": {
            "start": {
              "local": "2004-10-12T17:39:22+08:00",
              "utc": "2004-10-12T09:39:22Z",
              "ms": 1097573961626.7736
            },
            "end": {
              "local": "2004-10-12T19:21:10+08:00",
              "utc": "2004-10-12T11:21:10Z",
              "ms": 1097580069641.9352
            }
          },
          "covered_min": 0,
          "window_min": 102,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 13:01 on Mon 11 Oct to 12:52 on Tue 12 Oct.",
          "fact": "2004-10-11T05:00:49Z → 2004-10-12T04:52:10Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:41–19:22 on the 11th, 17:39–19:21 on the 12th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 101 of 101 minutes on the 11th and 0 of 102 on the 12th.",
          "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 16804 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Monday 11 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": "2004-10-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Monday 11 October. Trayodaśī runs from 13:01 on Mon 11 Oct to 12:52 on Tue 12 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-10-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-10-12",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38696,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-10-12T12:52:10+08:00",
          "utc": "2004-10-12T04:52:10Z",
          "ms": 1097556730343.3353
        },
        "end": {
          "local": "2004-10-13T12:06:27+08:00",
          "utc": "2004-10-13T04:06:27Z",
          "ms": 1097640387007.7507
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-12T12:52:10+08:00",
          "utc": "2004-10-12T04:52:10Z",
          "ms": 1097556730343.3353
        },
        "end": {
          "local": "2004-10-13T12:06:27+08:00",
          "utc": "2004-10-13T04:06:27Z",
          "ms": 1097640387007.7507
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-10-12",
          "window": {
            "start": {
              "local": "2004-10-12T23:37:07+08:00",
              "utc": "2004-10-12T15:37:07Z",
              "ms": 1097595426683.6296
            },
            "end": {
              "local": "2004-10-13T00:25:07+08:00",
              "utc": "2004-10-12T16:25:07Z",
              "ms": 1097598306683.6296
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-10-13",
          "window": {
            "start": {
              "local": "2004-10-13T23:36:52+08:00",
              "utc": "2004-10-13T15:36:52Z",
              "ms": 1097681812446.5659
            },
            "end": {
              "local": "2004-10-14T00:24:52+08:00",
              "utc": "2004-10-13T16:24:52Z",
              "ms": 1097684692446.5659
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 12:52 on Tue 12 Oct to 12:06 on Wed 13 Oct.",
          "fact": "2004-10-12T04:52:10Z → 2004-10-13T04:06:27Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:37–00:25 on the 12th, 23:37–00:25 on the 13th.",
          "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 12th and 0 of 48 on the 13th.",
          "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 38696 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Tuesday 12 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": "2004-10-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Tuesday 12 October. Caturdaśī runs from 12:52 on Tue 12 Oct to 12:06 on Wed 13 Oct and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-10-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/mahalaya-amavasya",
      "festival": "mahalaya-amavasya",
      "name": "Mahālaya Amāvāsyā",
      "everyday": "Sarvapitṛ Amāvāsyā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3684,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2004-10-13T12:06:27+08:00",
          "utc": "2004-10-13T04:06:27Z",
          "ms": 1097640387007.7507
        },
        "end": {
          "local": "2004-10-14T10:48:16+08:00",
          "utc": "2004-10-14T02:48:16Z",
          "ms": 1097722095693.5065
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-13T12:06:27+08:00",
          "utc": "2004-10-13T04:06:27Z",
          "ms": 1097640387007.7507
        },
        "end": {
          "local": "2004-10-14T10:48:16+08:00",
          "utc": "2004-10-14T02:48:16Z",
          "ms": 1097722095693.5065
        }
      },
      "kaala": "aparahna",
      "days": [
        {
          "local_date": "2004-10-13",
          "window": {
            "start": {
              "local": "2004-10-13T13:07:51+08:00",
              "utc": "2004-10-13T05:07:51Z",
              "ms": 1097644071134.009
            },
            "end": {
              "local": "2004-10-13T15:22:51+08:00",
              "utc": "2004-10-13T07:22:51Z",
              "ms": 1097652170931.8502
            }
          },
          "covered_min": 135,
          "window_min": 135,
          "qualifies": true
        },
        {
          "local_date": "2004-10-14",
          "window": {
            "start": {
              "local": "2004-10-14T13:07:22+08:00",
              "utc": "2004-10-14T05:07:22Z",
              "ms": 1097730442008.0533
            },
            "end": {
              "local": "2004-10-14T15:21:51+08:00",
              "utc": "2004-10-14T07:21:51Z",
              "ms": 1097738511289.5908
            }
          },
          "covered_min": 0,
          "window_min": 134,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 12:06 on Wed 13 Oct to 10:48 on Thu 14 Oct.",
          "fact": "2004-10-13T04:06:27Z → 2004-10-14T02:48:16Z"
        },
        {
          "step": "kaala",
          "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:08–15:23 on the 13th, 13:07–15:22 on the 14th.",
          "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during aparāhṇa. It covers 135 of 135 minutes on the 13th and 0 of 134 on the 14th.",
          "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 3684 s"
        },
        {
          "step": "ruling",
          "text": "Mahālaya Amāvāsyā, Beijing, 2004: Wednesday 13 October.",
          "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": "2004-10-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Mahālaya Amāvāsyā 2004 falls on Wednesday 13 October. Amāvasyā runs from 12:06 on Wed 13 Oct to 10:48 on Thu 14 Oct and covers all of aparāhṇa that afternoon.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/navaratra-arambha",
      "festival": "navaratra-arambha",
      "name": "Navarātrārambha",
      "everyday": "Navratri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2872,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2004-10-14T10:48:16+08:00",
          "utc": "2004-10-14T02:48:16Z",
          "ms": 1097722095693.5065
        },
        "end": {
          "local": "2004-10-15T09:03:29+08:00",
          "utc": "2004-10-15T01:03:29Z",
          "ms": 1097802208757.1262
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-14T10:48:16+08:00",
          "utc": "2004-10-14T02:48:16Z",
          "ms": 1097722095693.5065
        },
        "end": {
          "local": "2004-10-15T09:03:29+08:00",
          "utc": "2004-10-15T01:03:29Z",
          "ms": 1097802208757.1262
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-10-14",
          "window": {
            "start": {
              "local": "2004-10-14T11:36:07+08:00",
              "utc": "2004-10-14T03:36:07Z",
              "ms": 1097724967367.2845
            },
            "end": {
              "local": "2004-10-14T12:24:07+08:00",
              "utc": "2004-10-14T04:24:07Z",
              "ms": 1097727847367.2845
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-10-15",
          "window": {
            "start": {
              "local": "2004-10-15T11:35:54+08:00",
              "utc": "2004-10-15T03:35:54Z",
              "ms": 1097811354048.684
            },
            "end": {
              "local": "2004-10-15T12:23:54+08:00",
              "utc": "2004-10-15T04:23:54Z",
              "ms": 1097814234048.684
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 10:48 on Thu 14 Oct to 09:03 on Fri 15 Oct.",
          "fact": "2004-10-14T02:48:16Z → 2004-10-15T01:03:29Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 14th, 11:36–12:24 on the 15th.",
          "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 14th and 0 of 48 on the 15th.",
          "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 2872 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha, Beijing, 2004: Thursday 14 October.",
          "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": "2004-10-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-14",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Navarātrārambha (Navratri) 2004 falls on Thursday 14 October. Pratipadā runs from 10:48 on Thu 14 Oct to 09:03 on Fri 15 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-10-17",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24934,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-10-17T04:39:55+08:00",
          "utc": "2004-10-16T20:39:55Z",
          "ms": 1097959195365.2294
        },
        "end": {
          "local": "2004-10-18T02:13:48+08:00",
          "utc": "2004-10-17T18:13:48Z",
          "ms": 1098036828343.041
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-17T04:39:55+08:00",
          "utc": "2004-10-16T20:39:55Z",
          "ms": 1097959195365.2294
        },
        "end": {
          "local": "2004-10-18T02:13:48+08:00",
          "utc": "2004-10-17T18:13:48Z",
          "ms": 1098036828343.041
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-10-17",
          "window": {
            "start": {
              "local": "2004-10-17T11:35:29+08:00",
              "utc": "2004-10-17T03:35:29Z",
              "ms": 1097984129113.5181
            },
            "end": {
              "local": "2004-10-17T12:23:29+08:00",
              "utc": "2004-10-17T04:23:29Z",
              "ms": 1097987009113.5181
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-10-18",
          "window": {
            "start": {
              "local": "2004-10-18T11:35:18+08:00",
              "utc": "2004-10-18T03:35:18Z",
              "ms": 1098070517523.5808
            },
            "end": {
              "local": "2004-10-18T12:23:18+08:00",
              "utc": "2004-10-18T04:23:18Z",
              "ms": 1098073397523.5808
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:40 on Sun 17 Oct to 02:14 on Mon 18 Oct.",
          "fact": "2004-10-16T20:39:55Z → 2004-10-17T18:13:48Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 17th, 11:35–12:23 on the 18th.",
          "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 17th and 0 of 48 on the 18th.",
          "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 24934 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Sunday 17 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": "2004-10-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Sunday 17 October. Caturthī runs from 04:40 on Sun 17 Oct to 02:14 on Mon 18 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-10-17",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/durga-saptami",
      "festival": "durga-saptami",
      "name": "Durgā Saptamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32958,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2004-10-19T21:20:58+08:00",
          "utc": "2004-10-19T13:20:58Z",
          "ms": 1098192057672.0372
        },
        "end": {
          "local": "2004-10-20T19:03:30+08:00",
          "utc": "2004-10-20T11:03:30Z",
          "ms": 1098270209560.0378
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-19T21:20:58+08:00",
          "utc": "2004-10-19T13:20:58Z",
          "ms": 1098192057672.0372
        },
        "end": {
          "local": "2004-10-20T19:03:30+08:00",
          "utc": "2004-10-20T11:03:30Z",
          "ms": 1098270209560.0378
        }
      },
      "kaala": "udaya-1",
      "days": [
        {
          "local_date": "2004-10-20",
          "window": {
            "start": {
              "local": "2004-10-20T06:30:16+08:00",
              "utc": "2004-10-19T22:30:16Z",
              "ms": 1098225015500.2725
            },
            "end": {
              "local": "2004-10-20T07:14:05+08:00",
              "utc": "2004-10-19T23:14:05Z",
              "ms": 1098227644922.5085
            }
          },
          "covered_min": 44,
          "window_min": 44,
          "qualifies": true
        },
        {
          "local_date": "2004-10-21",
          "window": {
            "start": {
              "local": "2004-10-21T06:31:20+08:00",
              "utc": "2004-10-20T22:31:20Z",
              "ms": 1098311480148.2158
            },
            "end": {
              "local": "2004-10-21T07:15:00+08:00",
              "utc": "2004-10-20T23:15:00Z",
              "ms": 1098314099652.3525
            }
          },
          "covered_min": 0,
          "window_min": 44,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 21:21 on Tue 19 Oct to 19:03 on Wed 20 Oct.",
          "fact": "2004-10-19T13:20:58Z → 2004-10-20T11:03:30Z"
        },
        {
          "step": "kaala",
          "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:30–07:14 on the 20th, 06:31–07:15 on the 21st.",
          "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 44 of 44 minutes on the 20th and 0 of 44 on the 21st.",
          "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 32958 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Saptamī, Beijing, 2004: Wednesday 20 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": "2004-10-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Durgā Saptamī 2004 falls on Wednesday 20 October. Saptamī runs from 21:21 on Tue 19 Oct to 19:03 on Wed 20 Oct and covers all of the first muhūrta after sunrise that morning.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/mahashtami",
      "festival": "mahashtami",
      "name": "Mahāṣṭamī",
      "everyday": "Durga Ashtami",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16456,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-10-20T19:03:30+08:00",
          "utc": "2004-10-20T11:03:30Z",
          "ms": 1098270209560.0378
        },
        "end": {
          "local": "2004-10-21T16:57:03+08:00",
          "utc": "2004-10-21T08:57:03Z",
          "ms": 1098349022794.7854
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-20T19:03:30+08:00",
          "utc": "2004-10-20T11:03:30Z",
          "ms": 1098270209560.0378
        },
        "end": {
          "local": "2004-10-21T16:57:03+08:00",
          "utc": "2004-10-21T08:57:03Z",
          "ms": 1098349022794.7854
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-10-20",
          "window": {
            "start": {
              "local": "2004-10-20T11:34:56+08:00",
              "utc": "2004-10-20T03:34:56Z",
              "ms": 1098243296167.0427
            },
            "end": {
              "local": "2004-10-20T12:22:56+08:00",
              "utc": "2004-10-20T04:22:56Z",
              "ms": 1098246176167.0427
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-10-21",
          "window": {
            "start": {
              "local": "2004-10-21T11:34:46+08:00",
              "utc": "2004-10-21T03:34:46Z",
              "ms": 1098329686429.2408
            },
            "end": {
              "local": "2004-10-21T12:22:46+08:00",
              "utc": "2004-10-21T04:22:46Z",
              "ms": 1098332566429.2408
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 19:03 on Wed 20 Oct to 16:57 on Thu 21 Oct.",
          "fact": "2004-10-20T11:03:30Z → 2004-10-21T08:57:03Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 20th, 11:35–12:23 on the 21st.",
          "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 20th and 48 of 48 on the 21st.",
          "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 16456 s"
        },
        {
          "step": "ruling",
          "text": "Mahāṣṭamī, Beijing, 2004: Thursday 21 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": "2004-10-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Mahāṣṭamī (Durga Ashtami) 2004 falls on Thursday 21 October. Aṣṭamī runs from 19:03 on Wed 20 Oct to 16:57 on Thu 21 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vijaya-dashami",
      "festival": "vijaya-dashami",
      "name": "Vijayā Daśamī",
      "everyday": "Dussehra",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-22",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 198,
      "anga": {
        "type": "tithi",
        "index": 9,
        "key": "dashami",
        "name": "Daśamī",
        "start": {
          "local": "2004-10-22T15:04:42+08:00",
          "utc": "2004-10-22T07:04:42Z",
          "ms": 1098428682221.0996
        },
        "end": {
          "local": "2004-10-23T13:29:09+08:00",
          "utc": "2004-10-23T05:29:09Z",
          "ms": 1098509349323.6959
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "conjunction",
        "start": {
          "local": "2004-10-22T15:04:42+08:00",
          "utc": "2004-10-22T07:04:42Z",
          "ms": 1098428682221.0996
        },
        "end": {
          "local": "2004-10-22T15:08:00+08:00",
          "utc": "2004-10-22T07:08:00Z",
          "ms": 1098428879871.0208
        },
        "nakshatra": {
          "type": "nakshatra",
          "index": 21,
          "key": "shravana",
          "name": "Śravaṇa",
          "start": {
            "local": "2004-10-21T16:17:47+08:00",
            "utc": "2004-10-21T08:17:47Z",
            "ms": 1098346666822.1504
          },
          "end": {
            "local": "2004-10-22T15:08:00+08:00",
            "utc": "2004-10-22T07:08:00Z",
            "ms": 1098428879871.0208
          }
        }
      },
      "kaala": "daytime",
      "days": [
        {
          "local_date": "2004-10-22",
          "window": {
            "start": {
              "local": "2004-10-22T06:32:25+08:00",
              "utc": "2004-10-21T22:32:25Z",
              "ms": 1098397945096.2207
            },
            "end": {
              "local": "2004-10-22T17:24:50+08:00",
              "utc": "2004-10-22T09:24:50Z",
              "ms": 1098437089581.2688
            }
          },
          "covered_min": 3,
          "window_min": 652,
          "qualifies": true
        },
        {
          "local_date": "2004-10-23",
          "window": {
            "start": {
              "local": "2004-10-23T06:33:30+08:00",
              "utc": "2004-10-22T22:33:30Z",
              "ms": 1098484410341.0587
            },
            "end": {
              "local": "2004-10-23T17:23:27+08:00",
              "utc": "2004-10-23T09:23:27Z",
              "ms": 1098523407482.1456
            }
          },
          "covered_min": 0,
          "window_min": 650,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Daśamī runs from 15:05 on Fri 22 Oct to 13:29 on Sat 23 Oct, and Śravaṇa from 16:18 on Thu 21 Oct to 15:08 on Fri 22 Oct. They are together from 15:05 on Fri 22 Oct to 15:08 on Fri 22 Oct.",
          "fact": "2004-10-22T07:04:42Z → 2004-10-22T07:08:00Z"
        },
        {
          "step": "kaala",
          "text": "The day time is sunrise to sunset: 06:32–17:25 on the 22nd, 06:34–17:23 on the 23rd.",
          "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 3 of 652 minutes on the 22nd and 0 of 650 on the 23rd.",
          "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 198 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Daśamī, Beijing, 2004: Friday 22 October.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2004-10-22",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-22",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Vijayā Daśamī (Dussehra) 2004 falls on Friday 22 October. Daśamī runs from 15:05 on Fri 22 Oct to 13:29 on Sat 23 Oct and is with Śravaṇa in the day time that day, for 3 minutes. It is 3 min 18 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/mahanavami",
      "festival": "mahanavami",
      "name": "Mahānavamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9725,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2004-10-21T16:57:03+08:00",
          "utc": "2004-10-21T08:57:03Z",
          "ms": 1098349022794.7854
        },
        "end": {
          "local": "2004-10-22T15:04:42+08:00",
          "utc": "2004-10-22T07:04:42Z",
          "ms": 1098428682221.0996
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-21T16:57:03+08:00",
          "utc": "2004-10-21T08:57:03Z",
          "ms": 1098349022794.7854
        },
        "end": {
          "local": "2004-10-22T15:04:42+08:00",
          "utc": "2004-10-22T07:04:42Z",
          "ms": 1098428682221.0996
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-10-21",
          "window": {
            "start": {
              "local": "2004-10-21T11:34:46+08:00",
              "utc": "2004-10-21T03:34:46Z",
              "ms": 1098329686429.2408
            },
            "end": {
              "local": "2004-10-21T12:22:46+08:00",
              "utc": "2004-10-21T04:22:46Z",
              "ms": 1098332566429.2408
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-10-22",
          "window": {
            "start": {
              "local": "2004-10-22T11:34:37+08:00",
              "utc": "2004-10-22T03:34:37Z",
              "ms": 1098416077338.7448
            },
            "end": {
              "local": "2004-10-22T12:22:37+08:00",
              "utc": "2004-10-22T04:22:37Z",
              "ms": 1098418957338.7448
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 16:57 on Thu 21 Oct to 15:05 on Fri 22 Oct.",
          "fact": "2004-10-21T08:57:03Z → 2004-10-22T07:04:42Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 21st, 11:35–12:23 on the 22nd.",
          "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 21st and 48 of 48 on the 22nd.",
          "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 9725 s"
        },
        {
          "step": "ruling",
          "text": "Mahānavamī, Beijing, 2004: Friday 22 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": "2004-10-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Mahānavamī 2004 falls on Friday 22 October. Navamī runs from 16:57 on Thu 21 Oct to 15:05 on Fri 22 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-10-24",
      "festival": "ekadashi",
      "name": "Pāśāṅkuśā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20297,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-10-23T13:29:09+08:00",
          "utc": "2004-10-23T05:29:09Z",
          "ms": 1098509349323.6959
        },
        "end": {
          "local": "2004-10-24T12:12:52+08:00",
          "utc": "2004-10-24T04:12:52Z",
          "ms": 1098591172428.1974
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-23T13:29:09+08:00",
          "utc": "2004-10-23T05:29:09Z",
          "ms": 1098509349323.6959
        },
        "end": {
          "local": "2004-10-24T12:12:52+08:00",
          "utc": "2004-10-24T04:12:52Z",
          "ms": 1098591172428.1974
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-10-23",
          "window": {
            "start": {
              "local": "2004-10-23T06:33:30+08:00",
              "utc": "2004-10-22T22:33:30Z",
              "ms": 1098484410341.0587
            },
            "end": {
              "local": "2004-10-23T06:33:30+08:00",
              "utc": "2004-10-22T22:33:30Z",
              "ms": 1098484410341.0587
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-10-24",
          "window": {
            "start": {
              "local": "2004-10-24T06:34:36+08:00",
              "utc": "2004-10-23T22:34:36Z",
              "ms": 1098570875880.0862
            },
            "end": {
              "local": "2004-10-24T06:34:36+08:00",
              "utc": "2004-10-23T22:34:36Z",
              "ms": 1098570875880.0862
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 13:29 on Sat 23 Oct to 12:13 on Sun 24 Oct.",
          "fact": "2004-10-23T05:29:09Z → 2004-10-24T04:12:52Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:34 on the 23rd and 06:35 on the 24th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 23rd and is 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 20297 s"
        },
        {
          "step": "ruling",
          "text": "Pāśāṅkuśā Ekādaśī, Beijing, 2004: Sunday 24 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": "2004-10-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Pāśāṅkuśā Ekādaśī 2004 falls on Sunday 24 October. Ekādaśī runs from 13:29 on Sat 23 Oct to 12:13 on Sun 24 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-10-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-10-25",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21751,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-10-25T11:18:15+08:00",
          "utc": "2004-10-25T03:18:15Z",
          "ms": 1098674295072.6667
        },
        "end": {
          "local": "2004-10-26T10:47:40+08:00",
          "utc": "2004-10-26T02:47:40Z",
          "ms": 1098758859571.9989
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-25T11:18:15+08:00",
          "utc": "2004-10-25T03:18:15Z",
          "ms": 1098674295072.6667
        },
        "end": {
          "local": "2004-10-26T10:47:40+08:00",
          "utc": "2004-10-26T02:47:40Z",
          "ms": 1098758859571.9989
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-10-25",
          "window": {
            "start": {
              "local": "2004-10-25T17:20:47+08:00",
              "utc": "2004-10-25T09:20:47Z",
              "ms": 1098696046516.6964
            },
            "end": {
              "local": "2004-10-25T19:06:55+08:00",
              "utc": "2004-10-25T11:06:55Z",
              "ms": 1098702414691.9794
            }
          },
          "covered_min": 106,
          "window_min": 106,
          "qualifies": true
        },
        {
          "local_date": "2004-10-26",
          "window": {
            "start": {
              "local": "2004-10-26T17:19:28+08:00",
              "utc": "2004-10-26T09:19:28Z",
              "ms": 1098782367722.5985
            },
            "end": {
              "local": "2004-10-26T19:05:55+08:00",
              "utc": "2004-10-26T11:05:55Z",
              "ms": 1098788755258.0144
            }
          },
          "covered_min": 0,
          "window_min": 106,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:18 on Mon 25 Oct to 10:48 on Tue 26 Oct.",
          "fact": "2004-10-25T03:18:15Z → 2004-10-26T02:47:40Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:21–19:07 on the 25th, 17:19–19:06 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 106 of 106 minutes on the 25th and 0 of 106 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 21751 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Monday 25 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": "2004-10-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Monday 25 October. Trayodaśī runs from 11:18 on Mon 25 Oct to 10:48 on Tue 26 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-10-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/karaka-chaturthi",
      "festival": "karaka-chaturthi",
      "name": "Karaka Caturthī",
      "everyday": "Karwa Chauth",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8039,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-10-31T15:13:57+08:00",
          "utc": "2004-10-31T07:13:57Z",
          "ms": 1099206836759.6311
        },
        "end": {
          "local": "2004-11-01T17:26:38+08:00",
          "utc": "2004-11-01T09:26:38Z",
          "ms": 1099301197823.931
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-31T15:13:57+08:00",
          "utc": "2004-10-31T07:13:57Z",
          "ms": 1099206836759.6311
        },
        "end": {
          "local": "2004-11-01T17:26:38+08:00",
          "utc": "2004-11-01T09:26:38Z",
          "ms": 1099301197823.931
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-10-31",
          "window": {
            "start": {
              "local": "2004-10-31T18:56:26+08:00",
              "utc": "2004-10-31T10:56:26Z",
              "ms": 1099220186062.7131
            },
            "end": {
              "local": "2004-10-31T18:56:26+08:00",
              "utc": "2004-10-31T10:56:26Z",
              "ms": 1099220186062.7131
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-11-01",
          "window": {
            "start": {
              "local": "2004-11-01T19:40:36+08:00",
              "utc": "2004-11-01T11:40:36Z",
              "ms": 1099309236471.7384
            },
            "end": {
              "local": "2004-11-01T19:40:36+08:00",
              "utc": "2004-11-01T11:40:36Z",
              "ms": 1099309236471.7384
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:14 on Sun 31 Oct to 17:27 on Mon 1 Nov.",
          "fact": "2004-10-31T07:13:57Z → 2004-11-01T09:26:38Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:56 on the 31st and 19:41 on the 1st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 31st and is not on the 1st.",
          "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 8039 s"
        },
        {
          "step": "ruling",
          "text": "Karaka Caturthī, Beijing, 2004: Sunday 31 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": "2004-10-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Karaka Caturthī (Karwa Chauth) 2004 falls on Sunday 31 October. Caturthī runs from 15:14 on Sun 31 Oct to 17:27 on Mon 1 Nov and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-10-31",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-10-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8039,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-10-31T15:13:57+08:00",
          "utc": "2004-10-31T07:13:57Z",
          "ms": 1099206836759.6311
        },
        "end": {
          "local": "2004-11-01T17:26:38+08:00",
          "utc": "2004-11-01T09:26:38Z",
          "ms": 1099301197823.931
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-10-31T15:13:57+08:00",
          "utc": "2004-10-31T07:13:57Z",
          "ms": 1099206836759.6311
        },
        "end": {
          "local": "2004-11-01T17:26:38+08:00",
          "utc": "2004-11-01T09:26:38Z",
          "ms": 1099301197823.931
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-10-31",
          "window": {
            "start": {
              "local": "2004-10-31T18:56:26+08:00",
              "utc": "2004-10-31T10:56:26Z",
              "ms": 1099220186062.7131
            },
            "end": {
              "local": "2004-10-31T18:56:26+08:00",
              "utc": "2004-10-31T10:56:26Z",
              "ms": 1099220186062.7131
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-11-01",
          "window": {
            "start": {
              "local": "2004-11-01T19:40:36+08:00",
              "utc": "2004-11-01T11:40:36Z",
              "ms": 1099309236471.7384
            },
            "end": {
              "local": "2004-11-01T19:40:36+08:00",
              "utc": "2004-11-01T11:40:36Z",
              "ms": 1099309236471.7384
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:14 on Sun 31 Oct to 17:27 on Mon 1 Nov.",
          "fact": "2004-10-31T07:13:57Z → 2004-11-01T09:26:38Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:56 on the 31st and 19:41 on the 1st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 31st and is not on the 1st.",
          "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 8039 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Sunday 31 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": "2004-10-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-10-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Sunday 31 October. Caturthī runs from 15:14 on Sun 31 Oct to 17:27 on Mon 1 Nov and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-10-31",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ahoyi-ashtami",
      "festival": "ahoyi-ashtami",
      "name": "Ahoyī Aṣṭamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8365,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-11-05T00:48:56+08:00",
          "utc": "2004-11-04T16:48:56Z",
          "ms": 1099586936231.4438
        },
        "end": {
          "local": "2004-11-06T02:51:06+08:00",
          "utc": "2004-11-05T18:51:06Z",
          "ms": 1099680666413.0557
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-05T00:48:56+08:00",
          "utc": "2004-11-04T16:48:56Z",
          "ms": 1099586936231.4438
        },
        "end": {
          "local": "2004-11-06T02:51:06+08:00",
          "utc": "2004-11-05T18:51:06Z",
          "ms": 1099680666413.0557
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-11-04",
          "window": {
            "start": {
              "local": "2004-11-04T22:29:31+08:00",
              "utc": "2004-11-04T14:29:31Z",
              "ms": 1099578570917.1753
            },
            "end": {
              "local": "2004-11-04T22:29:31+08:00",
              "utc": "2004-11-04T14:29:31Z",
              "ms": 1099578570917.1753
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-11-05",
          "window": {
            "start": {
              "local": "2004-11-05T23:32:31+08:00",
              "utc": "2004-11-05T15:32:31Z",
              "ms": 1099668751093.9976
            },
            "end": {
              "local": "2004-11-05T23:32:31+08:00",
              "utc": "2004-11-05T15:32:31Z",
              "ms": 1099668751093.9976
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 00:49 on Fri 5 Nov to 02:51 on Sat 6 Nov.",
          "fact": "2004-11-04T16:48:56Z → 2004-11-05T18:51:06Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:30 on the 4th and 23:33 on the 5th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is not on the 4th and is on the 5th.",
          "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 8365 s"
        },
        {
          "step": "ruling",
          "text": "Ahoyī Aṣṭamī, Beijing, 2004: Friday 5 November.",
          "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": "2004-11-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Ahoyī Aṣṭamī 2004 falls on Friday 5 November. Aṣṭamī runs from 00:49 on Fri 5 Nov to 02:51 on Sat 6 Nov and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-11-08",
      "festival": "ekadashi",
      "name": "Ramā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5985,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-11-08T05:09:34+08:00",
          "utc": "2004-11-07T21:09:34Z",
          "ms": 1099861774248.9128
        },
        "end": {
          "local": "2004-11-09T05:12:55+08:00",
          "utc": "2004-11-08T21:12:55Z",
          "ms": 1099948374763.5415
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-08T05:09:34+08:00",
          "utc": "2004-11-07T21:09:34Z",
          "ms": 1099861774248.9128
        },
        "end": {
          "local": "2004-11-09T05:12:55+08:00",
          "utc": "2004-11-08T21:12:55Z",
          "ms": 1099948374763.5415
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-11-08",
          "window": {
            "start": {
              "local": "2004-11-08T06:51:30+08:00",
              "utc": "2004-11-07T22:51:30Z",
              "ms": 1099867890250.0183
            },
            "end": {
              "local": "2004-11-08T06:51:30+08:00",
              "utc": "2004-11-07T22:51:30Z",
              "ms": 1099867890250.0183
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-11-09",
          "window": {
            "start": {
              "local": "2004-11-09T06:52:39+08:00",
              "utc": "2004-11-08T22:52:39Z",
              "ms": 1099954359345.7354
            },
            "end": {
              "local": "2004-11-09T06:52:39+08:00",
              "utc": "2004-11-08T22:52:39Z",
              "ms": 1099954359345.7354
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 05:10 on Mon 8 Nov to 05:13 on Tue 9 Nov.",
          "fact": "2004-11-07T21:09:34Z → 2004-11-08T21:12:55Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:52 on the 8th and 06:53 on the 9th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 8th and is not 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 5985 s"
        },
        {
          "step": "ruling",
          "text": "Ramā Ekādaśī, Beijing, 2004: Monday 8 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": "2004-11-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Ramā Ekādaśī 2004 falls on Monday 8 November. Ekādaśī runs from 05:10 on Mon 8 Nov to 05:13 on Tue 9 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-11-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/govatsa-dvadashi",
      "festival": "govatsa-dvadashi",
      "name": "Govatsa Dvādaśī",
      "everyday": "Vasu Baras",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34565,
      "anga": {
        "type": "tithi",
        "index": 26,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2004-11-09T05:12:55+08:00",
          "utc": "2004-11-08T21:12:55Z",
          "ms": 1099948374763.5415
        },
        "end": {
          "local": "2004-11-10T04:30:12+08:00",
          "utc": "2004-11-09T20:30:12Z",
          "ms": 1100032212349.8003
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-09T05:12:55+08:00",
          "utc": "2004-11-08T21:12:55Z",
          "ms": 1099948374763.5415
        },
        "end": {
          "local": "2004-11-10T04:30:12+08:00",
          "utc": "2004-11-09T20:30:12Z",
          "ms": 1100032212349.8003
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-11-08",
          "window": {
            "start": {
              "local": "2004-11-08T17:04:24+08:00",
              "utc": "2004-11-08T09:04:24Z",
              "ms": 1099904663629.3784
            },
            "end": {
              "local": "2004-11-08T18:54:50+08:00",
              "utc": "2004-11-08T10:54:50Z",
              "ms": 1099911289724.8926
            }
          },
          "covered_min": 0,
          "window_min": 110,
          "qualifies": false
        },
        {
          "local_date": "2004-11-09",
          "window": {
            "start": {
              "local": "2004-11-09T17:03:25+08:00",
              "utc": "2004-11-09T09:03:25Z",
              "ms": 1099991004610.3962
            },
            "end": {
              "local": "2004-11-09T18:54:08+08:00",
              "utc": "2004-11-09T10:54:08Z",
              "ms": 1099997647795.0234
            }
          },
          "covered_min": 111,
          "window_min": 111,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 05:13 on Tue 9 Nov to 04:30 on Wed 10 Nov.",
          "fact": "2004-11-08T21:12:55Z → 2004-11-09T20:30:12Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:04–18:55 on the 8th, 17:03–18:54 on the 9th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during pradoṣa. It covers 0 of 110 minutes on the 8th and 111 of 111 on the 9th.",
          "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 34565 s"
        },
        {
          "step": "ruling",
          "text": "Govatsa Dvādaśī, Beijing, 2004: Tuesday 9 November.",
          "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": "2004-11-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Govatsa Dvādaśī (Vasu Baras) 2004 falls on Tuesday 9 November. Dvādaśī runs from 05:13 on Tue 9 Nov to 04:30 on Wed 10 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/yama-dipadana",
      "festival": "yama-dipadana",
      "name": "Yama Dīpadāna",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29452,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-11-10T04:30:12+08:00",
          "utc": "2004-11-09T20:30:12Z",
          "ms": 1100032212349.8003
        },
        "end": {
          "local": "2004-11-11T03:04:19+08:00",
          "utc": "2004-11-10T19:04:19Z",
          "ms": 1100113459258.103
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-10T04:30:12+08:00",
          "utc": "2004-11-09T20:30:12Z",
          "ms": 1100032212349.8003
        },
        "end": {
          "local": "2004-11-11T03:04:19+08:00",
          "utc": "2004-11-10T19:04:19Z",
          "ms": 1100113459258.103
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-11-09",
          "window": {
            "start": {
              "local": "2004-11-09T17:03:25+08:00",
              "utc": "2004-11-09T09:03:25Z",
              "ms": 1099991004610.3962
            },
            "end": {
              "local": "2004-11-09T18:54:08+08:00",
              "utc": "2004-11-09T10:54:08Z",
              "ms": 1099997647795.0234
            }
          },
          "covered_min": 0,
          "window_min": 111,
          "qualifies": false
        },
        {
          "local_date": "2004-11-10",
          "window": {
            "start": {
              "local": "2004-11-10T17:02:27+08:00",
              "utc": "2004-11-10T09:02:27Z",
              "ms": 1100077347271.5354
            },
            "end": {
              "local": "2004-11-10T18:53:27+08:00",
              "utc": "2004-11-10T10:53:27Z",
              "ms": 1100084007323.9553
            }
          },
          "covered_min": 111,
          "window_min": 111,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:30 on Wed 10 Nov to 03:04 on Thu 11 Nov.",
          "fact": "2004-11-09T20:30:12Z → 2004-11-10T19:04:19Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:03–18:54 on the 9th, 17:02–18:53 on the 10th.",
          "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 111 minutes on the 9th and 111 of 111 on the 10th.",
          "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 29452 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dīpadāna, Beijing, 2004: Wednesday 10 November.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "2004-11-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Yama Dīpadāna 2004 falls on Wednesday 10 November. Trayodaśī runs from 04:30 on Wed 10 Nov to 03:04 on Thu 11 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-11-10",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29452,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-11-10T04:30:12+08:00",
          "utc": "2004-11-09T20:30:12Z",
          "ms": 1100032212349.8003
        },
        "end": {
          "local": "2004-11-11T03:04:19+08:00",
          "utc": "2004-11-10T19:04:19Z",
          "ms": 1100113459258.103
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-10T04:30:12+08:00",
          "utc": "2004-11-09T20:30:12Z",
          "ms": 1100032212349.8003
        },
        "end": {
          "local": "2004-11-11T03:04:19+08:00",
          "utc": "2004-11-10T19:04:19Z",
          "ms": 1100113459258.103
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-11-09",
          "window": {
            "start": {
              "local": "2004-11-09T17:03:25+08:00",
              "utc": "2004-11-09T09:03:25Z",
              "ms": 1099991004610.3962
            },
            "end": {
              "local": "2004-11-09T18:54:08+08:00",
              "utc": "2004-11-09T10:54:08Z",
              "ms": 1099997647795.0234
            }
          },
          "covered_min": 0,
          "window_min": 111,
          "qualifies": false
        },
        {
          "local_date": "2004-11-10",
          "window": {
            "start": {
              "local": "2004-11-10T17:02:27+08:00",
              "utc": "2004-11-10T09:02:27Z",
              "ms": 1100077347271.5354
            },
            "end": {
              "local": "2004-11-10T18:53:27+08:00",
              "utc": "2004-11-10T10:53:27Z",
              "ms": 1100084007323.9553
            }
          },
          "covered_min": 111,
          "window_min": 111,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:30 on Wed 10 Nov to 03:04 on Thu 11 Nov.",
          "fact": "2004-11-09T20:30:12Z → 2004-11-10T19:04:19Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:03–18:54 on the 9th, 17:02–18:53 on the 10th.",
          "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 111 minutes on the 9th and 111 of 111 on the 10th.",
          "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 29452 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Wednesday 10 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": "2004-11-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Wednesday 10 November. Trayodaśī runs from 04:30 on Wed 10 Nov to 03:04 on Thu 11 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-11-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/naraka-chaturdashi",
      "festival": "naraka-chaturdashi",
      "name": "Naraka Caturdaśī",
      "everyday": "Choti Diwali",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7178,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-11-11T03:04:19+08:00",
          "utc": "2004-11-10T19:04:19Z",
          "ms": 1100113459258.103
        },
        "end": {
          "local": "2004-11-12T01:00:50+08:00",
          "utc": "2004-11-11T17:00:50Z",
          "ms": 1100192449783.7637
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-11T03:04:19+08:00",
          "utc": "2004-11-10T19:04:19Z",
          "ms": 1100113459258.103
        },
        "end": {
          "local": "2004-11-12T01:00:50+08:00",
          "utc": "2004-11-11T17:00:50Z",
          "ms": 1100192449783.7637
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2004-11-11",
          "window": {
            "start": {
              "local": "2004-11-11T05:03:58+08:00",
              "utc": "2004-11-10T21:03:58Z",
              "ms": 1100120637612.2656
            },
            "end": {
              "local": "2004-11-11T06:54:58+08:00",
              "utc": "2004-11-10T22:54:58Z",
              "ms": 1100127297664.6855
            }
          },
          "covered_min": 111,
          "window_min": 111,
          "qualifies": true
        },
        {
          "local_date": "2004-11-12",
          "window": {
            "start": {
              "local": "2004-11-12T05:04:50+08:00",
              "utc": "2004-11-11T21:04:50Z",
              "ms": 1100207090128.6353
            },
            "end": {
              "local": "2004-11-12T06:56:07+08:00",
              "utc": "2004-11-11T22:56:07Z",
              "ms": 1100213766818.451
            }
          },
          "covered_min": 0,
          "window_min": 111,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 03:04 on Thu 11 Nov to 01:01 on Fri 12 Nov.",
          "fact": "2004-11-10T19:04:19Z → 2004-11-11T17:00:50Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:04–06:55 on the 11th, 05:05–06:56 on the 12th.",
          "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 111 of 111 minutes on the 11th and 0 of 111 on the 12th.",
          "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 7178 s"
        },
        {
          "step": "ruling",
          "text": "Naraka Caturdaśī, Beijing, 2004: Thursday 11 November.",
          "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": "2004-11-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Naraka Caturdaśī (Choti Diwali) 2004 falls on Thursday 11 November. Caturdaśī runs from 03:04 on Thu 11 Nov to 01:01 on Fri 12 Nov and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/kali-puja",
      "festival": "kali-puja",
      "name": "Kālī Pūjā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-11",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 2281,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2004-11-12T01:00:50+08:00",
          "utc": "2004-11-11T17:00:50Z",
          "ms": 1100192449783.7637
        },
        "end": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-12T01:00:50+08:00",
          "utc": "2004-11-11T17:00:50Z",
          "ms": 1100192449783.7637
        },
        "end": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-11-11",
          "window": {
            "start": {
              "local": "2004-11-11T23:34:49+08:00",
              "utc": "2004-11-11T15:34:49Z",
              "ms": 1100187289231.642
            },
            "end": {
              "local": "2004-11-12T00:22:49+08:00",
              "utc": "2004-11-11T16:22:49Z",
              "ms": 1100190169231.642
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-11-12",
          "window": {
            "start": {
              "local": "2004-11-12T23:34:57+08:00",
              "utc": "2004-11-12T15:34:57Z",
              "ms": 1100273696839.3154
            },
            "end": {
              "local": "2004-11-13T00:22:57+08:00",
              "utc": "2004-11-12T16:22:57Z",
              "ms": 1100276576839.3154
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 01:01 on Fri 12 Nov to 22:27 on Fri 12 Nov.",
          "fact": "2004-11-11T17:00:50Z → 2004-11-12T14:27:11Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 11th, 23:35–00:23 on the 12th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during niśītha. It covers 0 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Neither night qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 2281 s"
        },
        {
          "step": "ruling",
          "text": "Kālī Pūjā, Beijing, 2004: Thursday 11 November.",
          "fact": "confidence: boundary (absent-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": "2004-11-11",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-11",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Kālī Pūjā 2004 falls on Thursday 11 November. Amāvasyā runs from 01:01 on Fri 12 Nov to 22:27 on Fri 12 Nov, and reaches niśītha on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/shivaratri?on=2004-11-11",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2281,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-11-11T03:04:19+08:00",
          "utc": "2004-11-10T19:04:19Z",
          "ms": 1100113459258.103
        },
        "end": {
          "local": "2004-11-12T01:00:50+08:00",
          "utc": "2004-11-11T17:00:50Z",
          "ms": 1100192449783.7637
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-11T03:04:19+08:00",
          "utc": "2004-11-10T19:04:19Z",
          "ms": 1100113459258.103
        },
        "end": {
          "local": "2004-11-12T01:00:50+08:00",
          "utc": "2004-11-11T17:00:50Z",
          "ms": 1100192449783.7637
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-11-10",
          "window": {
            "start": {
              "local": "2004-11-10T23:34:42+08:00",
              "utc": "2004-11-10T15:34:42Z",
              "ms": 1100100882468.1104
            },
            "end": {
              "local": "2004-11-11T00:22:42+08:00",
              "utc": "2004-11-10T16:22:42Z",
              "ms": 1100103762468.1104
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-11-11",
          "window": {
            "start": {
              "local": "2004-11-11T23:34:49+08:00",
              "utc": "2004-11-11T15:34:49Z",
              "ms": 1100187289231.642
            },
            "end": {
              "local": "2004-11-12T00:22:49+08:00",
              "utc": "2004-11-11T16:22:49Z",
              "ms": 1100190169231.642
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 03:04 on Thu 11 Nov to 01:01 on Fri 12 Nov.",
          "fact": "2004-11-10T19:04:19Z → 2004-11-11T17:00:50Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 10th, 23:35–00:23 on the 11th.",
          "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 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 night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2281 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Thursday 11 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": "2004-11-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Thursday 11 November. Caturdaśī runs from 03:04 on Thu 11 Nov to 01:01 on Fri 12 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-11-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/diwali-lakshmi-puja",
      "festival": "diwali-lakshmi-puja",
      "name": "Lakṣmī Pūjā",
      "everyday": "Diwali",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12900,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2004-11-12T01:00:50+08:00",
          "utc": "2004-11-11T17:00:50Z",
          "ms": 1100192449783.7637
        },
        "end": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-12T01:00:50+08:00",
          "utc": "2004-11-11T17:00:50Z",
          "ms": 1100192449783.7637
        },
        "end": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-11-11",
          "window": {
            "start": {
              "local": "2004-11-11T17:01:32+08:00",
              "utc": "2004-11-11T09:01:32Z",
              "ms": 1100163691644.8335
            },
            "end": {
              "local": "2004-11-11T18:52:48+08:00",
              "utc": "2004-11-11T10:52:48Z",
              "ms": 1100170368334.6492
            }
          },
          "covered_min": 0,
          "window_min": 111,
          "qualifies": false
        },
        {
          "local_date": "2004-11-12",
          "window": {
            "start": {
              "local": "2004-11-12T17:00:38+08:00",
              "utc": "2004-11-12T09:00:38Z",
              "ms": 1100250037760.9016
            },
            "end": {
              "local": "2004-11-12T18:52:11+08:00",
              "utc": "2004-11-12T10:52:11Z",
              "ms": 1100256730848.4785
            }
          },
          "covered_min": 112,
          "window_min": 112,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 01:01 on Fri 12 Nov to 22:27 on Fri 12 Nov.",
          "fact": "2004-11-11T17:00:50Z → 2004-11-12T14:27:11Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:02–18:53 on the 11th, 17:01–18:52 on the 12th.",
          "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 111 minutes on the 11th and 112 of 112 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 12900 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pūjā, Beijing, 2004: Friday 12 November.",
          "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": "2004-11-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Lakṣmī Pūjā (Diwali) 2004 falls on Friday 12 November. Amāvasyā runs from 01:01 on Fri 12 Nov to 22:27 on Fri 12 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/govardhana-puja",
      "festival": "govardhana-puja",
      "name": "Govardhana Pūjā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25767,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        },
        "end": {
          "local": "2004-11-13T19:31:58+08:00",
          "utc": "2004-11-13T11:31:58Z",
          "ms": 1100345517898.908
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        },
        "end": {
          "local": "2004-11-13T19:31:58+08:00",
          "utc": "2004-11-13T11:31:58Z",
          "ms": 1100345517898.908
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-11-12",
          "window": {
            "start": {
              "local": "2004-11-12T11:34:22+08:00",
              "utc": "2004-11-12T03:34:22Z",
              "ms": 1100230462289.6763
            },
            "end": {
              "local": "2004-11-12T12:22:22+08:00",
              "utc": "2004-11-12T04:22:22Z",
              "ms": 1100233342289.6763
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-11-13",
          "window": {
            "start": {
              "local": "2004-11-13T11:34:31+08:00",
              "utc": "2004-11-13T03:34:31Z",
              "ms": 1100316870783.391
            },
            "end": {
              "local": "2004-11-13T12:22:31+08:00",
              "utc": "2004-11-13T04:22:31Z",
              "ms": 1100319750783.391
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 22:27 on Fri 12 Nov to 19:32 on Sat 13 Nov.",
          "fact": "2004-11-12T14:27:11Z → 2004-11-13T11:31:58Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 12th, 11:35–12:23 on the 13th.",
          "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 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: purvaviddha → only-day · margin 25767 s"
        },
        {
          "step": "ruling",
          "text": "Govardhana Pūjā, Beijing, 2004: Saturday 13 November.",
          "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": "2004-11-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Govardhana Pūjā 2004 falls on Saturday 13 November. Pratipadā runs from 22:27 on Fri 12 Nov to 19:32 on Sat 13 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/bali-puja",
      "festival": "bali-puja",
      "name": "Bali Pūjā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2423,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        },
        "end": {
          "local": "2004-11-13T19:31:58+08:00",
          "utc": "2004-11-13T11:31:58Z",
          "ms": 1100345517898.908
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        },
        "end": {
          "local": "2004-11-13T19:31:58+08:00",
          "utc": "2004-11-13T11:31:58Z",
          "ms": 1100345517898.908
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-11-12",
          "window": {
            "start": {
              "local": "2004-11-12T17:00:38+08:00",
              "utc": "2004-11-12T09:00:38Z",
              "ms": 1100250037760.9016
            },
            "end": {
              "local": "2004-11-12T18:52:11+08:00",
              "utc": "2004-11-12T10:52:11Z",
              "ms": 1100256730848.4785
            }
          },
          "covered_min": 0,
          "window_min": 112,
          "qualifies": false
        },
        {
          "local_date": "2004-11-13",
          "window": {
            "start": {
              "local": "2004-11-13T16:59:46+08:00",
              "utc": "2004-11-13T08:59:46Z",
              "ms": 1100336385649.053
            },
            "end": {
              "local": "2004-11-13T18:51:35+08:00",
              "utc": "2004-11-13T10:51:35Z",
              "ms": 1100343094885.3613
            }
          },
          "covered_min": 112,
          "window_min": 112,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 22:27 on Fri 12 Nov to 19:32 on Sat 13 Nov.",
          "fact": "2004-11-12T14:27:11Z → 2004-11-13T11:31:58Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:01–18:52 on the 12th, 17:00–18:52 on the 13th.",
          "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 112 minutes on the 12th and 112 of 112 on the 13th.",
          "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 2423 s"
        },
        {
          "step": "ruling",
          "text": "Bali Pūjā, Beijing, 2004: Saturday 13 November.",
          "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": "2004-11-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Bali Pūjā 2004 falls on Saturday 13 November. Pratipadā runs from 22:27 on Fri 12 Nov to 19:32 on Sat 13 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/dyuta-pratipad",
      "festival": "dyuta-pratipad",
      "name": "Dyūta Pratipad",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30605,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        },
        "end": {
          "local": "2004-11-13T19:31:58+08:00",
          "utc": "2004-11-13T11:31:58Z",
          "ms": 1100345517898.908
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-12T22:27:11+08:00",
          "utc": "2004-11-12T14:27:11Z",
          "ms": 1100269630819.647
        },
        "end": {
          "local": "2004-11-13T19:31:58+08:00",
          "utc": "2004-11-13T11:31:58Z",
          "ms": 1100345517898.908
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2004-11-13",
          "window": {
            "start": {
              "local": "2004-11-13T06:57:16+08:00",
              "utc": "2004-11-12T22:57:16Z",
              "ms": 1100300235917.7292
            },
            "end": {
              "local": "2004-11-13T10:18:06+08:00",
              "utc": "2004-11-13T02:18:06Z",
              "ms": 1100312285828.1704
            }
          },
          "covered_min": 201,
          "window_min": 201,
          "qualifies": true
        },
        {
          "local_date": "2004-11-14",
          "window": {
            "start": {
              "local": "2004-11-14T06:58:25+08:00",
              "utc": "2004-11-13T22:58:25Z",
              "ms": 1100386704921.3665
            },
            "end": {
              "local": "2004-11-14T10:18:35+08:00",
              "utc": "2004-11-14T02:18:35Z",
              "ms": 1100398715060.142
            }
          },
          "covered_min": 0,
          "window_min": 200,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 22:27 on Fri 12 Nov to 19:32 on Sat 13 Nov.",
          "fact": "2004-11-12T14:27:11Z → 2004-11-13T11:31:58Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:57–10:18 on the 13th, 06:58–10:19 on the 14th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during pūrvāhṇa. It covers 201 of 201 minutes on the 13th and 0 of 200 on the 14th.",
          "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 30605 s"
        },
        {
          "step": "ruling",
          "text": "Dyūta Pratipad, Beijing, 2004: Saturday 13 November.",
          "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": "2004-11-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Dyūta Pratipad 2004 falls on Saturday 13 November. Pratipadā runs from 22:27 on Fri 12 Nov to 19:32 on Sat 13 Nov and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/yama-dvitiya",
      "festival": "yama-dvitiya",
      "name": "Yama Dvitīyā",
      "everyday": "Bhai Dooj",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14499,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2004-11-13T19:31:58+08:00",
          "utc": "2004-11-13T11:31:58Z",
          "ms": 1100345517898.908
        },
        "end": {
          "local": "2004-11-14T16:24:19+08:00",
          "utc": "2004-11-14T08:24:19Z",
          "ms": 1100420659286.3745
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-13T19:31:58+08:00",
          "utc": "2004-11-13T11:31:58Z",
          "ms": 1100345517898.908
        },
        "end": {
          "local": "2004-11-14T16:24:19+08:00",
          "utc": "2004-11-14T08:24:19Z",
          "ms": 1100420659286.3745
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-11-13",
          "window": {
            "start": {
              "local": "2004-11-13T11:34:31+08:00",
              "utc": "2004-11-13T03:34:31Z",
              "ms": 1100316870783.391
            },
            "end": {
              "local": "2004-11-13T12:22:31+08:00",
              "utc": "2004-11-13T04:22:31Z",
              "ms": 1100319750783.391
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-11-14",
          "window": {
            "start": {
              "local": "2004-11-14T11:34:40+08:00",
              "utc": "2004-11-14T03:34:40Z",
              "ms": 1100403280129.5298
            },
            "end": {
              "local": "2004-11-14T12:22:40+08:00",
              "utc": "2004-11-14T04:22:40Z",
              "ms": 1100406160129.5298
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 19:32 on Sat 13 Nov to 16:24 on Sun 14 Nov.",
          "fact": "2004-11-13T11:31:58Z → 2004-11-14T08:24:19Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 13th, 11:35–12:23 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 14499 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dvitīyā, Beijing, 2004: Sunday 14 November.",
          "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": "2004-11-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Yama Dvitīyā (Bhai Dooj) 2004 falls on Sunday 14 November. Dvitīyā runs from 19:32 on Sat 13 Nov to 16:24 on Sun 14 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/naga-chaturthi",
      "festival": "naga-chaturthi",
      "name": "Nāga Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3037,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-11-15T13:13:27+08:00",
          "utc": "2004-11-15T05:13:27Z",
          "ms": 1100495606964.2185
        },
        "end": {
          "local": "2004-11-16T10:08:12+08:00",
          "utc": "2004-11-16T02:08:12Z",
          "ms": 1100570891882.6216
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-15T13:13:27+08:00",
          "utc": "2004-11-15T05:13:27Z",
          "ms": 1100495606964.2185
        },
        "end": {
          "local": "2004-11-16T10:08:12+08:00",
          "utc": "2004-11-16T02:08:12Z",
          "ms": 1100570891882.6216
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-11-15",
          "window": {
            "start": {
              "local": "2004-11-15T11:34:50+08:00",
              "utc": "2004-11-15T03:34:50Z",
              "ms": 1100489690320.4736
            },
            "end": {
              "local": "2004-11-15T12:22:50+08:00",
              "utc": "2004-11-15T04:22:50Z",
              "ms": 1100492570320.4736
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-11-16",
          "window": {
            "start": {
              "local": "2004-11-16T11:35:01+08:00",
              "utc": "2004-11-16T03:35:01Z",
              "ms": 1100576101347.906
            },
            "end": {
              "local": "2004-11-16T12:23:01+08:00",
              "utc": "2004-11-16T04:23:01Z",
              "ms": 1100578981347.906
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:13 on Mon 15 Nov to 10:08 on Tue 16 Nov.",
          "fact": "2004-11-15T05:13:27Z → 2004-11-16T02:08:12Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 15th, 11:35–12:23 on the 16th.",
          "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 15th and 0 of 48 on the 16th.",
          "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 3037 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Caturthī, Beijing, 2004: Tuesday 16 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": "2004-11-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Nāga Caturthī 2004 falls on Tuesday 16 November. Caturthī runs from 13:13 on Mon 15 Nov to 10:08 on Tue 16 Nov, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-11-16",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3037,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-11-15T13:13:27+08:00",
          "utc": "2004-11-15T05:13:27Z",
          "ms": 1100495606964.2185
        },
        "end": {
          "local": "2004-11-16T10:08:12+08:00",
          "utc": "2004-11-16T02:08:12Z",
          "ms": 1100570891882.6216
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-15T13:13:27+08:00",
          "utc": "2004-11-15T05:13:27Z",
          "ms": 1100495606964.2185
        },
        "end": {
          "local": "2004-11-16T10:08:12+08:00",
          "utc": "2004-11-16T02:08:12Z",
          "ms": 1100570891882.6216
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-11-15",
          "window": {
            "start": {
              "local": "2004-11-15T11:34:50+08:00",
              "utc": "2004-11-15T03:34:50Z",
              "ms": 1100489690320.4736
            },
            "end": {
              "local": "2004-11-15T12:22:50+08:00",
              "utc": "2004-11-15T04:22:50Z",
              "ms": 1100492570320.4736
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-11-16",
          "window": {
            "start": {
              "local": "2004-11-16T11:35:01+08:00",
              "utc": "2004-11-16T03:35:01Z",
              "ms": 1100576101347.906
            },
            "end": {
              "local": "2004-11-16T12:23:01+08:00",
              "utc": "2004-11-16T04:23:01Z",
              "ms": 1100578981347.906
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:13 on Mon 15 Nov to 10:08 on Tue 16 Nov.",
          "fact": "2004-11-15T05:13:27Z → 2004-11-16T02:08:12Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 15th, 11:35–12:23 on the 16th.",
          "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 15th and 0 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: unstated → second-day · margin 3037 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Tuesday 16 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": "2004-11-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Tuesday 16 November. Caturthī runs from 13:13 on Mon 15 Nov to 10:08 on Tue 16 Nov, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-11-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/surya-shashthi",
      "festival": "surya-shashthi",
      "name": "Sūrya Ṣaṣṭhī",
      "everyday": "Chhath",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15512,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2004-11-17T07:16:41+08:00",
          "utc": "2004-11-16T23:16:41Z",
          "ms": 1100647001018.8655
        },
        "end": {
          "local": "2004-11-18T04:45:55+08:00",
          "utc": "2004-11-17T20:45:55Z",
          "ms": 1100724355077.9219
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-17T07:16:41+08:00",
          "utc": "2004-11-16T23:16:41Z",
          "ms": 1100647001018.8655
        },
        "end": {
          "local": "2004-11-18T04:45:55+08:00",
          "utc": "2004-11-17T20:45:55Z",
          "ms": 1100724355077.9219
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-11-17",
          "window": {
            "start": {
              "local": "2004-11-17T11:35:13+08:00",
              "utc": "2004-11-17T03:35:13Z",
              "ms": 1100662513203.3079
            },
            "end": {
              "local": "2004-11-17T12:23:13+08:00",
              "utc": "2004-11-17T04:23:13Z",
              "ms": 1100665393203.3079
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-11-18",
          "window": {
            "start": {
              "local": "2004-11-18T11:35:26+08:00",
              "utc": "2004-11-18T03:35:26Z",
              "ms": 1100748925878.2905
            },
            "end": {
              "local": "2004-11-18T12:23:26+08:00",
              "utc": "2004-11-18T04:23:26Z",
              "ms": 1100751805878.2905
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 07:17 on Wed 17 Nov to 04:46 on Thu 18 Nov.",
          "fact": "2004-11-16T23:16:41Z → 2004-11-17T20:45:55Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 17th, 11:35–12:23 on the 18th.",
          "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 17th and 0 of 48 on the 18th.",
          "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 15512 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī, Beijing, 2004: Wednesday 17 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": "2004-11-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Sūrya Ṣaṣṭhī (Chhath) 2004 falls on Wednesday 17 November. Ṣaṣṭhī runs from 07:17 on Wed 17 Nov to 04:46 on Thu 18 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/gopashtami",
      "festival": "gopashtami",
      "name": "Gopāṣṭamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32052,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2004-11-19T02:41:28+08:00",
          "utc": "2004-11-18T18:41:28Z",
          "ms": 1100803287666.6543
        },
        "end": {
          "local": "2004-11-20T01:07:09+08:00",
          "utc": "2004-11-19T17:07:09Z",
          "ms": 1100884028946.5422
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-19T02:41:28+08:00",
          "utc": "2004-11-18T18:41:28Z",
          "ms": 1100803287666.6543
        },
        "end": {
          "local": "2004-11-20T01:07:09+08:00",
          "utc": "2004-11-19T17:07:09Z",
          "ms": 1100884028946.5422
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-11-19",
          "window": {
            "start": {
              "local": "2004-11-19T11:35:39+08:00",
              "utc": "2004-11-19T03:35:39Z",
              "ms": 1100835339364.7122
            },
            "end": {
              "local": "2004-11-19T12:23:39+08:00",
              "utc": "2004-11-19T04:23:39Z",
              "ms": 1100838219364.7122
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-11-20",
          "window": {
            "start": {
              "local": "2004-11-20T11:35:54+08:00",
              "utc": "2004-11-20T03:35:54Z",
              "ms": 1100921753654.6167
            },
            "end": {
              "local": "2004-11-20T12:23:54+08:00",
              "utc": "2004-11-20T04:23:54Z",
              "ms": 1100924633654.6167
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 02:41 on Fri 19 Nov to 01:07 on Sat 20 Nov.",
          "fact": "2004-11-18T18:41:28Z → 2004-11-19T17:07:09Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 19th, 11:36–12:24 on the 20th.",
          "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 19th and 0 of 48 on the 20th.",
          "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 32052 s"
        },
        {
          "step": "ruling",
          "text": "Gopāṣṭamī, Beijing, 2004: Friday 19 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": "2004-11-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Gopāṣṭamī 2004 falls on Friday 19 November. Aṣṭamī runs from 02:41 on Fri 19 Nov to 01:07 on Sat 20 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/akshaya-navami",
      "festival": "akshaya-navami",
      "name": "Akṣaya Navamī",
      "everyday": "Amla Navami",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21486,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2004-11-20T01:07:09+08:00",
          "utc": "2004-11-19T17:07:09Z",
          "ms": 1100884028946.5422
        },
        "end": {
          "local": "2004-11-21T00:04:58+08:00",
          "utc": "2004-11-20T16:04:58Z",
          "ms": 1100966698215.9167
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-20T01:07:09+08:00",
          "utc": "2004-11-19T17:07:09Z",
          "ms": 1100884028946.5422
        },
        "end": {
          "local": "2004-11-21T00:04:58+08:00",
          "utc": "2004-11-20T16:04:58Z",
          "ms": 1100966698215.9167
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2004-11-20",
          "window": {
            "start": {
              "local": "2004-11-20T07:05:14+08:00",
              "utc": "2004-11-19T23:05:14Z",
              "ms": 1100905514448.6438
            },
            "end": {
              "local": "2004-11-20T10:21:41+08:00",
              "utc": "2004-11-20T02:21:41Z",
              "ms": 1100917300585.959
            }
          },
          "covered_min": 196,
          "window_min": 196,
          "qualifies": true
        },
        {
          "local_date": "2004-11-21",
          "window": {
            "start": {
              "local": "2004-11-21T07:06:22+08:00",
              "utc": "2004-11-20T23:06:22Z",
              "ms": 1100991981535.4314
            },
            "end": {
              "local": "2004-11-21T10:22:13+08:00",
              "utc": "2004-11-21T02:22:13Z",
              "ms": 1101003733005.1816
            }
          },
          "covered_min": 0,
          "window_min": 196,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 01:07 on Sat 20 Nov to 00:05 on Sun 21 Nov.",
          "fact": "2004-11-19T17:07:09Z → 2004-11-20T16:04:58Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:05–10:22 on the 20th, 07:06–10:22 on the 21st.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during pūrvāhṇa. It covers 196 of 196 minutes on the 20th and 0 of 196 on the 21st.",
          "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 21486 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Navamī, Beijing, 2004: Saturday 20 November.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "2004-11-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Akṣaya Navamī (Amla Navami) 2004 falls on Saturday 20 November. Navamī runs from 01:07 on Sat 20 Nov to 00:05 on Sun 21 Nov and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/durga-navami",
      "festival": "durga-navami",
      "name": "Durgā Navamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37725,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2004-11-20T01:07:09+08:00",
          "utc": "2004-11-19T17:07:09Z",
          "ms": 1100884028946.5422
        },
        "end": {
          "local": "2004-11-21T00:04:58+08:00",
          "utc": "2004-11-20T16:04:58Z",
          "ms": 1100966698215.9167
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-20T01:07:09+08:00",
          "utc": "2004-11-19T17:07:09Z",
          "ms": 1100884028946.5422
        },
        "end": {
          "local": "2004-11-21T00:04:58+08:00",
          "utc": "2004-11-20T16:04:58Z",
          "ms": 1100966698215.9167
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-11-20",
          "window": {
            "start": {
              "local": "2004-11-20T11:35:54+08:00",
              "utc": "2004-11-20T03:35:54Z",
              "ms": 1100921753654.6167
            },
            "end": {
              "local": "2004-11-20T12:23:54+08:00",
              "utc": "2004-11-20T04:23:54Z",
              "ms": 1100924633654.6167
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-11-21",
          "window": {
            "start": {
              "local": "2004-11-21T11:36:09+08:00",
              "utc": "2004-11-21T03:36:09Z",
              "ms": 1101008168740.057
            },
            "end": {
              "local": "2004-11-21T12:24:09+08:00",
              "utc": "2004-11-21T04:24:09Z",
              "ms": 1101011048740.057
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 01:07 on Sat 20 Nov to 00:05 on Sun 21 Nov.",
          "fact": "2004-11-19T17:07:09Z → 2004-11-20T16:04:58Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 20th, 11:36–12:24 on the 21st.",
          "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 20th and 0 of 48 on the 21st.",
          "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 37725 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Navamī, Beijing, 2004: Saturday 20 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": "2004-11-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Durgā Navamī 2004 falls on Saturday 20 November. Navamī runs from 01:07 on Sat 20 Nov to 00:05 on Sun 21 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-11-22",
      "festival": "ekadashi",
      "name": "Prabodhinī Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27123,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-11-21T23:35:09+08:00",
          "utc": "2004-11-21T15:35:09Z",
          "ms": 1101051309457.8228
        },
        "end": {
          "local": "2004-11-22T23:36:31+08:00",
          "utc": "2004-11-22T15:36:31Z",
          "ms": 1101137790937.6685
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-21T23:35:09+08:00",
          "utc": "2004-11-21T15:35:09Z",
          "ms": 1101051309457.8228
        },
        "end": {
          "local": "2004-11-22T23:36:31+08:00",
          "utc": "2004-11-22T15:36:31Z",
          "ms": 1101137790937.6685
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-11-22",
          "window": {
            "start": {
              "local": "2004-11-22T07:07:28+08:00",
              "utc": "2004-11-21T23:07:28Z",
              "ms": 1101078448171.4329
            },
            "end": {
              "local": "2004-11-22T07:07:28+08:00",
              "utc": "2004-11-21T23:07:28Z",
              "ms": 1101078448171.4329
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-11-23",
          "window": {
            "start": {
              "local": "2004-11-23T07:08:34+08:00",
              "utc": "2004-11-22T23:08:34Z",
              "ms": 1101164914313.246
            },
            "end": {
              "local": "2004-11-23T07:08:34+08:00",
              "utc": "2004-11-22T23:08:34Z",
              "ms": 1101164914313.246
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 23:35 on Sun 21 Nov to 23:37 on Mon 22 Nov.",
          "fact": "2004-11-21T15:35:09Z → 2004-11-22T15:36:31Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:07 on the 22nd and 07:09 on the 23rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.",
          "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": "Prabodhinī Ekādaśī, Beijing, 2004: Monday 22 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": "2004-11-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Prabodhinī Ekādaśī 2004 falls on Monday 22 November. Ekādaśī runs from 23:35 on Sun 21 Nov to 23:37 on Mon 22 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-11-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-11-24",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19192,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-11-24T00:06:55+08:00",
          "utc": "2004-11-23T16:06:55Z",
          "ms": 1101226015110.3345
        },
        "end": {
          "local": "2004-11-25T01:03:51+08:00",
          "utc": "2004-11-24T17:03:51Z",
          "ms": 1101315830532.8364
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-24T00:06:55+08:00",
          "utc": "2004-11-23T16:06:55Z",
          "ms": 1101226015110.3345
        },
        "end": {
          "local": "2004-11-25T01:03:51+08:00",
          "utc": "2004-11-24T17:03:51Z",
          "ms": 1101315830532.8364
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-11-23",
          "window": {
            "start": {
              "local": "2004-11-23T16:52:48+08:00",
              "utc": "2004-11-23T08:52:48Z",
              "ms": 1101199968215.7676
            },
            "end": {
              "local": "2004-11-23T18:47:03+08:00",
              "utc": "2004-11-23T10:47:03Z",
              "ms": 1101206823109.2852
            }
          },
          "covered_min": 0,
          "window_min": 114,
          "qualifies": false
        },
        {
          "local_date": "2004-11-24",
          "window": {
            "start": {
              "local": "2004-11-24T16:52:17+08:00",
              "utc": "2004-11-24T08:52:17Z",
              "ms": 1101286337454.3447
            },
            "end": {
              "local": "2004-11-24T18:46:45+08:00",
              "utc": "2004-11-24T10:46:45Z",
              "ms": 1101293205118.944
            }
          },
          "covered_min": 114,
          "window_min": 114,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 00:07 on Wed 24 Nov to 01:04 on Thu 25 Nov.",
          "fact": "2004-11-23T16:06:55Z → 2004-11-24T17:03:51Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:53–18:47 on the 23rd, 16:52–18:47 on the 24th.",
          "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 114 minutes on the 23rd and 114 of 114 on the 24th.",
          "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 19192 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Wednesday 24 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": "2004-11-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Wednesday 24 November. Trayodaśī runs from 00:07 on Wed 24 Nov to 01:04 on Thu 25 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-11-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/kartiki-purnima",
      "festival": "kartiki-purnima",
      "name": "Kārtikī Pūrṇimā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27040,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-11-26T02:24:46+08:00",
          "utc": "2004-11-25T18:24:46Z",
          "ms": 1101407085588.5254
        },
        "end": {
          "local": "2004-11-27T04:07:16+08:00",
          "utc": "2004-11-26T20:07:16Z",
          "ms": 1101499635651.1597
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-26T02:24:46+08:00",
          "utc": "2004-11-25T18:24:46Z",
          "ms": 1101407085588.5254
        },
        "end": {
          "local": "2004-11-27T04:07:16+08:00",
          "utc": "2004-11-26T20:07:16Z",
          "ms": 1101499635651.1597
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-11-26",
          "window": {
            "start": {
              "local": "2004-11-26T11:37:36+08:00",
              "utc": "2004-11-26T03:37:36Z",
              "ms": 1101440255796.1958
            },
            "end": {
              "local": "2004-11-26T12:25:36+08:00",
              "utc": "2004-11-26T04:25:36Z",
              "ms": 1101443135796.1958
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-11-27",
          "window": {
            "start": {
              "local": "2004-11-27T11:37:55+08:00",
              "utc": "2004-11-27T03:37:55Z",
              "ms": 1101526675462.4907
            },
            "end": {
              "local": "2004-11-27T12:25:55+08:00",
              "utc": "2004-11-27T04:25:55Z",
              "ms": 1101529555462.4907
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 02:25 on Fri 26 Nov to 04:07 on Sat 27 Nov.",
          "fact": "2004-11-25T18:24:46Z → 2004-11-26T20:07:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 26th, 11:38–12:26 on the 27th.",
          "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 26th and 0 of 48 on the 27th.",
          "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 27040 s"
        },
        {
          "step": "ruling",
          "text": "Kārtikī Pūrṇimā, Beijing, 2004: Friday 26 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": "2004-11-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kārtikī Pūrṇimā 2004 falls on Friday 26 November. Pūrṇimā runs from 02:25 on Fri 26 Nov to 04:07 on Sat 27 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/rasayatra",
      "festival": "rasayatra",
      "name": "Rāsayātrā",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7137,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-11-26T02:24:46+08:00",
          "utc": "2004-11-25T18:24:46Z",
          "ms": 1101407085588.5254
        },
        "end": {
          "local": "2004-11-27T04:07:16+08:00",
          "utc": "2004-11-26T20:07:16Z",
          "ms": 1101499635651.1597
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-26T02:24:46+08:00",
          "utc": "2004-11-25T18:24:46Z",
          "ms": 1101407085588.5254
        },
        "end": {
          "local": "2004-11-27T04:07:16+08:00",
          "utc": "2004-11-26T20:07:16Z",
          "ms": 1101499635651.1597
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-11-25",
          "window": {
            "start": {
              "local": "2004-11-25T23:37:49+08:00",
              "utc": "2004-11-25T15:37:49Z",
              "ms": 1101397069063.7937
            },
            "end": {
              "local": "2004-11-26T00:25:49+08:00",
              "utc": "2004-11-25T16:25:49Z",
              "ms": 1101399949063.7937
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-11-26",
          "window": {
            "start": {
              "local": "2004-11-26T23:38:08+08:00",
              "utc": "2004-11-26T15:38:08Z",
              "ms": 1101483487656.6404
            },
            "end": {
              "local": "2004-11-27T00:26:08+08:00",
              "utc": "2004-11-26T16:26:08Z",
              "ms": 1101486367656.6404
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 02:25 on Fri 26 Nov to 04:07 on Sat 27 Nov.",
          "fact": "2004-11-25T18:24:46Z → 2004-11-26T20:07:16Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:38–00:26 on the 25th, 23:38–00:26 on the 26th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 7137 s"
        },
        {
          "step": "ruling",
          "text": "Rāsayātrā, Beijing, 2004: Friday 26 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": "2004-11-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Rāsayātrā 2004 falls on Friday 26 November. Pūrṇimā runs from 02:25 on Fri 26 Nov to 04:07 on Sat 27 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-11-30",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-11-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24554,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-11-30T10:55:22+08:00",
          "utc": "2004-11-30T02:55:22Z",
          "ms": 1101783322368.1035
        },
        "end": {
          "local": "2004-12-01T13:29:34+08:00",
          "utc": "2004-12-01T05:29:34Z",
          "ms": 1101878973864.802
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-11-30T10:55:22+08:00",
          "utc": "2004-11-30T02:55:22Z",
          "ms": 1101783322368.1035
        },
        "end": {
          "local": "2004-12-01T13:29:34+08:00",
          "utc": "2004-12-01T05:29:34Z",
          "ms": 1101878973864.802
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-11-30",
          "window": {
            "start": {
              "local": "2004-11-30T19:19:20+08:00",
              "utc": "2004-11-30T11:19:20Z",
              "ms": 1101813560144.2617
            },
            "end": {
              "local": "2004-11-30T19:19:20+08:00",
              "utc": "2004-11-30T11:19:20Z",
              "ms": 1101813560144.2617
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-12-01",
          "window": {
            "start": {
              "local": "2004-12-01T20:18:47+08:00",
              "utc": "2004-12-01T12:18:47Z",
              "ms": 1101903527417.7817
            },
            "end": {
              "local": "2004-12-01T20:18:47+08:00",
              "utc": "2004-12-01T12:18:47Z",
              "ms": 1101903527417.7817
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:55 on Tue 30 Nov to 13:30 on Wed 1 Dec.",
          "fact": "2004-11-30T02:55:22Z → 2004-12-01T05:29:34Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:19 on the 30th and 20:19 on the 1st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 1st.",
          "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 24554 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Tuesday 30 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": "2004-11-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-11-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Tuesday 30 November. Caturthī runs from 10:55 on Tue 30 Nov to 13:30 on Wed 1 Dec and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-11-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/ekadashi?on=2004-12-08",
      "festival": "ekadashi",
      "name": "Utpannā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34904,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-12-07T21:41:51+08:00",
          "utc": "2004-12-07T13:41:51Z",
          "ms": 1102426910821.251
        },
        "end": {
          "local": "2004-12-08T20:35:27+08:00",
          "utc": "2004-12-08T12:35:27Z",
          "ms": 1102509327137.1824
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-07T21:41:51+08:00",
          "utc": "2004-12-07T13:41:51Z",
          "ms": 1102426910821.251
        },
        "end": {
          "local": "2004-12-08T20:35:27+08:00",
          "utc": "2004-12-08T12:35:27Z",
          "ms": 1102509327137.1824
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-12-08",
          "window": {
            "start": {
              "local": "2004-12-08T07:23:35+08:00",
              "utc": "2004-12-07T23:23:35Z",
              "ms": 1102461815272.3474
            },
            "end": {
              "local": "2004-12-08T07:23:35+08:00",
              "utc": "2004-12-07T23:23:35Z",
              "ms": 1102461815272.3474
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2004-12-09",
          "window": {
            "start": {
              "local": "2004-12-09T07:24:27+08:00",
              "utc": "2004-12-08T23:24:27Z",
              "ms": 1102548266943.922
            },
            "end": {
              "local": "2004-12-09T07:24:27+08:00",
              "utc": "2004-12-08T23:24:27Z",
              "ms": 1102548266943.922
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 21:42 on Tue 7 Dec to 20:35 on Wed 8 Dec.",
          "fact": "2004-12-07T13:41:51Z → 2004-12-08T12:35:27Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:24 on the 8th and 07:24 on the 9th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 8th and is not 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 34904 s"
        },
        {
          "step": "ruling",
          "text": "Utpannā Ekādaśī, Beijing, 2004: Wednesday 8 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": "2004-12-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Utpannā Ekādaśī 2004 falls on Wednesday 8 December. Ekādaśī runs from 21:42 on Tue 7 Dec to 20:35 on Wed 8 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-12-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/pradosha-vrata?on=2004-12-09",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-09",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 234,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-12-09T18:41:56+08:00",
          "utc": "2004-12-09T10:41:56Z",
          "ms": 1102588915625.0205
        },
        "end": {
          "local": "2004-12-10T16:07:13+08:00",
          "utc": "2004-12-10T08:07:13Z",
          "ms": 1102666032710.6003
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-09T18:41:56+08:00",
          "utc": "2004-12-09T10:41:56Z",
          "ms": 1102588915625.0205
        },
        "end": {
          "local": "2004-12-10T16:07:13+08:00",
          "utc": "2004-12-10T08:07:13Z",
          "ms": 1102666032710.6003
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-12-09",
          "window": {
            "start": {
              "local": "2004-12-09T16:48:59+08:00",
              "utc": "2004-12-09T08:48:59Z",
              "ms": 1102582138643.3748
            },
            "end": {
              "local": "2004-12-09T18:45:49+08:00",
              "utc": "2004-12-09T10:45:49Z",
              "ms": 1102589149125.3945
            }
          },
          "covered_min": 4,
          "window_min": 117,
          "qualifies": true
        },
        {
          "local_date": "2004-12-10",
          "window": {
            "start": {
              "local": "2004-12-10T16:49:03+08:00",
              "utc": "2004-12-10T08:49:03Z",
              "ms": 1102668543426.8303
            },
            "end": {
              "local": "2004-12-10T18:46:00+08:00",
              "utc": "2004-12-10T10:46:00Z",
              "ms": 1102675559791.178
            }
          },
          "covered_min": 0,
          "window_min": 117,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 18:42 on Thu 9 Dec to 16:07 on Fri 10 Dec.",
          "fact": "2004-12-09T10:41:56Z → 2004-12-10T08:07:13Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:49–18:46 on the 9th, 16:49–18:46 on the 10th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 4 of 117 minutes on the 9th and 0 of 117 on the 10th.",
          "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 234 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Beijing, 2004: Thursday 9 December.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2004-12-09",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Kṛṣṇa Pradoṣa Vrata 2004 falls on Thursday 9 December. Trayodaśī runs from 18:42 on Thu 9 Dec to 16:07 on Fri 10 Dec and covers 4 of 117 minutes of pradoṣa that evening. It is 3 min 54 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/beijing/festivals/2004/pradosha-vrata?on=2004-12-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/shivaratri?on=2004-12-10",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27382,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2004-12-10T16:07:13+08:00",
          "utc": "2004-12-10T08:07:13Z",
          "ms": 1102666032710.6003
        },
        "end": {
          "local": "2004-12-11T12:59:37+08:00",
          "utc": "2004-12-11T04:59:37Z",
          "ms": 1102741176798.1514
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-10T16:07:13+08:00",
          "utc": "2004-12-10T08:07:13Z",
          "ms": 1102666032710.6003
        },
        "end": {
          "local": "2004-12-11T12:59:37+08:00",
          "utc": "2004-12-11T04:59:37Z",
          "ms": 1102741176798.1514
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2004-12-10",
          "window": {
            "start": {
              "local": "2004-12-10T23:43:35+08:00",
              "utc": "2004-12-10T15:43:35Z",
              "ms": 1102693414793.1338
            },
            "end": {
              "local": "2004-12-11T00:31:35+08:00",
              "utc": "2004-12-10T16:31:35Z",
              "ms": 1102696294793.1338
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2004-12-11",
          "window": {
            "start": {
              "local": "2004-12-11T23:44:02+08:00",
              "utc": "2004-12-11T15:44:02Z",
              "ms": 1102779842028.5247
            },
            "end": {
              "local": "2004-12-12T00:32:02+08:00",
              "utc": "2004-12-11T16:32:02Z",
              "ms": 1102782722028.5247
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 16:07 on Fri 10 Dec to 13:00 on Sat 11 Dec.",
          "fact": "2004-12-10T08:07:13Z → 2004-12-11T04:59:37Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:44–00:32 on the 10th, 23:44–00:32 on the 11th.",
          "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 10th and 0 of 48 on the 11th.",
          "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 27382 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Beijing, 2004: Friday 10 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": "2004-12-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Śivarātri 2004 falls on Friday 10 December. Caturdaśī runs from 16:07 on Fri 10 Dec to 13:00 on Sat 11 Dec and covers all of niśītha that night.",
      "cite": "https://ahargana.org/beijing/festivals/2004/shivaratri?on=2004-12-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/vinayaka-chaturthi?on=2004-12-15",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24148,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-12-14T22:29:00+08:00",
          "utc": "2004-12-14T14:29:00Z",
          "ms": 1103034539977.5896
        },
        "end": {
          "local": "2004-12-15T19:16:02+08:00",
          "utc": "2004-12-15T11:16:02Z",
          "ms": 1103109361818.8533
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-14T22:29:00+08:00",
          "utc": "2004-12-14T14:29:00Z",
          "ms": 1103034539977.5896
        },
        "end": {
          "local": "2004-12-15T19:16:02+08:00",
          "utc": "2004-12-15T11:16:02Z",
          "ms": 1103109361818.8533
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-12-14",
          "window": {
            "start": {
              "local": "2004-12-14T11:45:04+08:00",
              "utc": "2004-12-14T03:45:04Z",
              "ms": 1102995904390.8135
            },
            "end": {
              "local": "2004-12-14T12:33:04+08:00",
              "utc": "2004-12-14T04:33:04Z",
              "ms": 1102998784390.8135
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-12-15",
          "window": {
            "start": {
              "local": "2004-12-15T11:45:34+08:00",
              "utc": "2004-12-15T03:45:34Z",
              "ms": 1103082333677.9404
            },
            "end": {
              "local": "2004-12-15T12:33:34+08:00",
              "utc": "2004-12-15T04:33:34Z",
              "ms": 1103085213677.9404
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 22:29 on Tue 14 Dec to 19:16 on Wed 15 Dec.",
          "fact": "2004-12-14T14:29:00Z → 2004-12-15T11:16:02Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 14th, 11:46–12:34 on the 15th.",
          "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 14th and 48 of 48 on the 15th.",
          "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 24148 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Beijing, 2004: Wednesday 15 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": "2004-12-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Vināyaka Caturthī 2004 falls on Wednesday 15 December. Caturthī runs from 22:29 on Tue 14 Dec to 19:16 on Wed 15 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/vinayaka-chaturthi?on=2004-12-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/naga-panchami-margashirsha",
      "festival": "naga-panchami-margashirsha",
      "name": "Nāga Pañcamī (Mārgaśīrṣa)",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14336,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2004-12-15T19:16:02+08:00",
          "utc": "2004-12-15T11:16:02Z",
          "ms": 1103109361818.8533
        },
        "end": {
          "local": "2004-12-16T16:33:00+08:00",
          "utc": "2004-12-16T08:33:00Z",
          "ms": 1103185979600.2993
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-15T19:16:02+08:00",
          "utc": "2004-12-15T11:16:02Z",
          "ms": 1103109361818.8533
        },
        "end": {
          "local": "2004-12-16T16:33:00+08:00",
          "utc": "2004-12-16T08:33:00Z",
          "ms": 1103185979600.2993
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-12-15",
          "window": {
            "start": {
              "local": "2004-12-15T11:45:34+08:00",
              "utc": "2004-12-15T03:45:34Z",
              "ms": 1103082333677.9404
            },
            "end": {
              "local": "2004-12-15T12:33:34+08:00",
              "utc": "2004-12-15T04:33:34Z",
              "ms": 1103085213677.9404
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-12-16",
          "window": {
            "start": {
              "local": "2004-12-16T11:46:03+08:00",
              "utc": "2004-12-16T03:46:03Z",
              "ms": 1103168763199.1885
            },
            "end": {
              "local": "2004-12-16T12:34:03+08:00",
              "utc": "2004-12-16T04:34:03Z",
              "ms": 1103171643199.1885
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 19:16 on Wed 15 Dec to 16:33 on Thu 16 Dec.",
          "fact": "2004-12-15T11:16:02Z → 2004-12-16T08:33:00Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 15th, 11:46–12:34 on the 16th.",
          "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 15th and 48 of 48 on the 16th.",
          "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 14336 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī (Mārgaśīrṣa), Beijing, 2004: Thursday 16 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": "2004-12-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Nāga Pañcamī (Mārgaśīrṣa) 2004 falls on Thursday 16 December. Pañcamī runs from 19:16 on Wed 15 Dec to 16:33 on Thu 16 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/champa-shashthi",
      "festival": "champa-shashthi",
      "name": "Campā Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6772,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2004-12-16T16:33:00+08:00",
          "utc": "2004-12-16T08:33:00Z",
          "ms": 1103185979600.2993
        },
        "end": {
          "local": "2004-12-17T14:27:25+08:00",
          "utc": "2004-12-17T06:27:25Z",
          "ms": 1103264845198.116
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-16T16:33:00+08:00",
          "utc": "2004-12-16T08:33:00Z",
          "ms": 1103185979600.2993
        },
        "end": {
          "local": "2004-12-17T14:27:25+08:00",
          "utc": "2004-12-17T06:27:25Z",
          "ms": 1103264845198.116
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-12-16",
          "window": {
            "start": {
              "local": "2004-12-16T11:46:03+08:00",
              "utc": "2004-12-16T03:46:03Z",
              "ms": 1103168763199.1885
            },
            "end": {
              "local": "2004-12-16T12:34:03+08:00",
              "utc": "2004-12-16T04:34:03Z",
              "ms": 1103171643199.1885
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-12-17",
          "window": {
            "start": {
              "local": "2004-12-17T11:46:33+08:00",
              "utc": "2004-12-17T03:46:33Z",
              "ms": 1103255192917.9648
            },
            "end": {
              "local": "2004-12-17T12:34:33+08:00",
              "utc": "2004-12-17T04:34:33Z",
              "ms": 1103258072917.9648
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 16:33 on Thu 16 Dec to 14:27 on Fri 17 Dec.",
          "fact": "2004-12-16T08:33:00Z → 2004-12-17T06:27:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 16th, 11:47–12:35 on the 17th.",
          "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 16th and 48 of 48 on the 17th.",
          "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 6772 s"
        },
        {
          "step": "ruling",
          "text": "Campā Ṣaṣṭhī, Beijing, 2004: Friday 17 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": "2004-12-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Campā Ṣaṣṭhī 2004 falls on Friday 17 December. Ṣaṣṭhī runs from 16:33 on Thu 16 Dec to 14:27 on Fri 17 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/skanda-shashthi",
      "festival": "skanda-shashthi",
      "name": "Skanda Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6772,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2004-12-16T16:33:00+08:00",
          "utc": "2004-12-16T08:33:00Z",
          "ms": 1103185979600.2993
        },
        "end": {
          "local": "2004-12-17T14:27:25+08:00",
          "utc": "2004-12-17T06:27:25Z",
          "ms": 1103264845198.116
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-16T16:33:00+08:00",
          "utc": "2004-12-16T08:33:00Z",
          "ms": 1103185979600.2993
        },
        "end": {
          "local": "2004-12-17T14:27:25+08:00",
          "utc": "2004-12-17T06:27:25Z",
          "ms": 1103264845198.116
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-12-16",
          "window": {
            "start": {
              "local": "2004-12-16T11:46:03+08:00",
              "utc": "2004-12-16T03:46:03Z",
              "ms": 1103168763199.1885
            },
            "end": {
              "local": "2004-12-16T12:34:03+08:00",
              "utc": "2004-12-16T04:34:03Z",
              "ms": 1103171643199.1885
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-12-17",
          "window": {
            "start": {
              "local": "2004-12-17T11:46:33+08:00",
              "utc": "2004-12-17T03:46:33Z",
              "ms": 1103255192917.9648
            },
            "end": {
              "local": "2004-12-17T12:34:33+08:00",
              "utc": "2004-12-17T04:34:33Z",
              "ms": 1103258072917.9648
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 16:33 on Thu 16 Dec to 14:27 on Fri 17 Dec.",
          "fact": "2004-12-16T08:33:00Z → 2004-12-17T06:27:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 16th, 11:47–12:35 on the 17th.",
          "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 16th and 48 of 48 on the 17th.",
          "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 6772 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī, Beijing, 2004: Friday 17 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": "2004-12-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Skanda Ṣaṣṭhī 2004 falls on Friday 17 December. Ṣaṣṭhī runs from 16:33 on Thu 16 Dec to 14:27 on Fri 17 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/mitra-saptami",
      "festival": "mitra-saptami",
      "name": "Mitra Saptamī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1761,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2004-12-17T14:27:25+08:00",
          "utc": "2004-12-17T06:27:25Z",
          "ms": 1103264845198.116
        },
        "end": {
          "local": "2004-12-18T13:04:24+08:00",
          "utc": "2004-12-18T05:04:24Z",
          "ms": 1103346263754.8525
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-17T14:27:25+08:00",
          "utc": "2004-12-17T06:27:25Z",
          "ms": 1103264845198.116
        },
        "end": {
          "local": "2004-12-18T13:04:24+08:00",
          "utc": "2004-12-18T05:04:24Z",
          "ms": 1103346263754.8525
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-12-17",
          "window": {
            "start": {
              "local": "2004-12-17T11:46:33+08:00",
              "utc": "2004-12-17T03:46:33Z",
              "ms": 1103255192917.9648
            },
            "end": {
              "local": "2004-12-17T12:34:33+08:00",
              "utc": "2004-12-17T04:34:33Z",
              "ms": 1103258072917.9648
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-12-18",
          "window": {
            "start": {
              "local": "2004-12-18T11:47:03+08:00",
              "utc": "2004-12-18T03:47:03Z",
              "ms": 1103341622798.8542
            },
            "end": {
              "local": "2004-12-18T12:35:03+08:00",
              "utc": "2004-12-18T04:35:03Z",
              "ms": 1103344502798.8542
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 14:27 on Fri 17 Dec to 13:04 on Sat 18 Dec.",
          "fact": "2004-12-17T06:27:25Z → 2004-12-18T05:04:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 17th, 11:47–12:35 on the 18th.",
          "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 17th and 48 of 48 on the 18th.",
          "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 1761 s"
        },
        {
          "step": "ruling",
          "text": "Mitra Saptamī, Beijing, 2004: Saturday 18 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": "2004-12-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-18",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Mitra Saptamī 2004 falls on Saturday 18 December. Saptamī runs from 14:27 on Fri 17 Dec to 13:04 on Sat 18 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/ekadashi?on=2004-12-22",
      "festival": "ekadashi",
      "name": "Mokṣadā Ekādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20592,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2004-12-21T13:15:57+08:00",
          "utc": "2004-12-21T05:15:57Z",
          "ms": 1103606157438.6
        },
        "end": {
          "local": "2004-12-22T14:34:08+08:00",
          "utc": "2004-12-22T06:34:08Z",
          "ms": 1103697247695.875
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-21T13:15:57+08:00",
          "utc": "2004-12-21T05:15:57Z",
          "ms": 1103606157438.6
        },
        "end": {
          "local": "2004-12-22T14:34:08+08:00",
          "utc": "2004-12-22T06:34:08Z",
          "ms": 1103697247695.875
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2004-12-21",
          "window": {
            "start": {
              "local": "2004-12-21T07:32:45+08:00",
              "utc": "2004-12-20T23:32:45Z",
              "ms": 1103585565328.7622
            },
            "end": {
              "local": "2004-12-21T07:32:45+08:00",
              "utc": "2004-12-20T23:32:45Z",
              "ms": 1103585565328.7622
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-12-22",
          "window": {
            "start": {
              "local": "2004-12-22T07:33:15+08:00",
              "utc": "2004-12-21T23:33:15Z",
              "ms": 1103671995217.9958
            },
            "end": {
              "local": "2004-12-22T07:33:15+08:00",
              "utc": "2004-12-21T23:33:15Z",
              "ms": 1103671995217.9958
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 13:16 on Tue 21 Dec to 14:34 on Wed 22 Dec.",
          "fact": "2004-12-21T05:15:57Z → 2004-12-22T06:34:08Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:33 on the 21st and 07:33 on the 22nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.",
          "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 20592 s"
        },
        {
          "step": "ruling",
          "text": "Mokṣadā Ekādaśī, Beijing, 2004: Wednesday 22 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": "2004-12-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Mokṣadā Ekādaśī 2004 falls on Wednesday 22 December. Ekādaśī runs from 13:16 on Tue 21 Dec to 14:34 on Wed 22 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/ekadashi?on=2004-12-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/akhanda-dvadashi",
      "festival": "akhanda-dvadashi",
      "name": "Akhaṇḍa Dvādaśī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7024,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2004-12-22T14:34:08+08:00",
          "utc": "2004-12-22T06:34:08Z",
          "ms": 1103697247695.875
        },
        "end": {
          "local": "2004-12-23T16:18:39+08:00",
          "utc": "2004-12-23T08:18:39Z",
          "ms": 1103789918909.036
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-22T14:34:08+08:00",
          "utc": "2004-12-22T06:34:08Z",
          "ms": 1103697247695.875
        },
        "end": {
          "local": "2004-12-23T16:18:39+08:00",
          "utc": "2004-12-23T08:18:39Z",
          "ms": 1103789918909.036
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2004-12-22",
          "window": {
            "start": {
              "local": "2004-12-22T11:49:03+08:00",
              "utc": "2004-12-22T03:49:03Z",
              "ms": 1103687343268.5903
            },
            "end": {
              "local": "2004-12-22T12:37:03+08:00",
              "utc": "2004-12-22T04:37:03Z",
              "ms": 1103690223268.5903
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2004-12-23",
          "window": {
            "start": {
              "local": "2004-12-23T11:49:33+08:00",
              "utc": "2004-12-23T03:49:33Z",
              "ms": 1103773773459.648
            },
            "end": {
              "local": "2004-12-23T12:37:33+08:00",
              "utc": "2004-12-23T04:37:33Z",
              "ms": 1103776653459.648
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 14:34 on Wed 22 Dec to 16:19 on Thu 23 Dec.",
          "fact": "2004-12-22T06:34:08Z → 2004-12-23T08:18:39Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 22nd, 11:50–12:38 on the 23rd.",
          "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 22nd and 48 of 48 on the 23rd.",
          "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 7024 s"
        },
        {
          "step": "ruling",
          "text": "Akhaṇḍa Dvādaśī, Beijing, 2004: Thursday 23 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": "2004-12-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Akhaṇḍa Dvādaśī 2004 falls on Thursday 23 December. Dvādaśī runs from 14:34 on Wed 22 Dec to 16:19 on Thu 23 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/pradosha-vrata?on=2004-12-23",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-23",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1726,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2004-12-23T16:18:39+08:00",
          "utc": "2004-12-23T08:18:39Z",
          "ms": 1103789918909.036
        },
        "end": {
          "local": "2004-12-24T18:22:37+08:00",
          "utc": "2004-12-24T10:22:37Z",
          "ms": 1103883757157.0208
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-23T16:18:39+08:00",
          "utc": "2004-12-23T08:18:39Z",
          "ms": 1103789918909.036
        },
        "end": {
          "local": "2004-12-24T18:22:37+08:00",
          "utc": "2004-12-24T10:22:37Z",
          "ms": 1103883757157.0208
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-12-23",
          "window": {
            "start": {
              "local": "2004-12-23T16:53:24+08:00",
              "utc": "2004-12-23T08:53:24Z",
              "ms": 1103792003785.2021
            },
            "end": {
              "local": "2004-12-23T18:50:50+08:00",
              "utc": "2004-12-23T10:50:50Z",
              "ms": 1103799049820.2822
            }
          },
          "covered_min": 117,
          "window_min": 117,
          "qualifies": true
        },
        {
          "local_date": "2004-12-24",
          "window": {
            "start": {
              "local": "2004-12-24T16:53:58+08:00",
              "utc": "2004-12-24T08:53:58Z",
              "ms": 1103878438184.8838
            },
            "end": {
              "local": "2004-12-24T18:51:23+08:00",
              "utc": "2004-12-24T10:51:23Z",
              "ms": 1103885482818.1
            }
          },
          "covered_min": 89,
          "window_min": 117,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 16:19 on Thu 23 Dec to 18:23 on Fri 24 Dec.",
          "fact": "2004-12-23T08:18:39Z → 2004-12-24T10:22:37Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:53–18:51 on the 23rd, 16:54–18:51 on the 24th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 117 of 117 minutes on the 23rd and 89 of 117 on the 24th.",
          "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 1726 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Beijing, 2004: Thursday 23 December.",
          "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": "2004-12-23",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-23",
          "confidence": "boundary"
        }
      ],
      "quote": "In Beijing, Śukla Pradoṣa Vrata 2004 falls on Thursday 23 December. Trayodaśī runs from 16:19 on Thu 23 Dec to 18:23 on Fri 24 Dec and covers all of pradoṣa that evening. It also reaches the next evening for 89 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/beijing/festivals/2004/pradosha-vrata?on=2004-12-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/beijing/festivals/2004/dattatreyotpatti",
      "festival": "dattatreyotpatti",
      "name": "Dattātreyotpatti",
      "everyday": "Datta Jayanti",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6489,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2004-12-25T20:40:06+08:00",
          "utc": "2004-12-25T12:40:06Z",
          "ms": 1103978406177.2812
        },
        "end": {
          "local": "2004-12-26T23:06:20+08:00",
          "utc": "2004-12-26T15:06:20Z",
          "ms": 1104073580095.381
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-25T20:40:06+08:00",
          "utc": "2004-12-25T12:40:06Z",
          "ms": 1103978406177.2812
        },
        "end": {
          "local": "2004-12-26T23:06:20+08:00",
          "utc": "2004-12-26T15:06:20Z",
          "ms": 1104073580095.381
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2004-12-25",
          "window": {
            "start": {
              "local": "2004-12-25T16:54:34+08:00",
              "utc": "2004-12-25T08:54:34Z",
              "ms": 1103964874482.4922
            },
            "end": {
              "local": "2004-12-25T18:51:57+08:00",
              "utc": "2004-12-25T10:51:57Z",
              "ms": 1103971917187.043
            }
          },
          "covered_min": 0,
          "window_min": 117,
          "qualifies": false
        },
        {
          "local_date": "2004-12-26",
          "window": {
            "start": {
              "local": "2004-12-26T16:55:13+08:00",
              "utc": "2004-12-26T08:55:13Z",
              "ms": 1104051312640.8442
            },
            "end": {
              "local": "2004-12-26T18:52:33+08:00",
              "utc": "2004-12-26T10:52:33Z",
              "ms": 1104058352891.868
            }
          },
          "covered_min": 117,
          "window_min": 117,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 20:40 on Sat 25 Dec to 23:06 on Sun 26 Dec.",
          "fact": "2004-12-25T12:40:06Z → 2004-12-26T15:06:20Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:55–18:52 on the 25th, 16:55–18:53 on the 26th.",
          "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 117 minutes on the 25th and 117 of 117 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: unstated → only-day · margin 6489 s"
        },
        {
          "step": "ruling",
          "text": "Dattātreyotpatti, Beijing, 2004: Sunday 26 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": "2004-12-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Dattātreyotpatti (Datta Jayanti) 2004 falls on Sunday 26 December. Pūrṇimā runs from 20:40 on Sat 25 Dec to 23:06 on Sun 26 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/beijing/festivals/2004/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": "/beijing/festivals/2004/sankashta-chaturthi?on=2004-12-30",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "1816670",
      "year": 2004,
      "local_date": "2004-12-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 41119,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2004-12-30T06:37:40+08:00",
          "utc": "2004-12-29T22:37:40Z",
          "ms": 1104359860238.5745
        },
        "end": {
          "local": "2004-12-31T08:56:14+08:00",
          "utc": "2004-12-31T00:56:14Z",
          "ms": 1104454573538.583
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2004-12-30T06:37:40+08:00",
          "utc": "2004-12-29T22:37:40Z",
          "ms": 1104359860238.5745
        },
        "end": {
          "local": "2004-12-31T08:56:14+08:00",
          "utc": "2004-12-31T00:56:14Z",
          "ms": 1104454573538.583
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2004-12-29",
          "window": {
            "start": {
              "local": "2004-12-29T19:12:21+08:00",
              "utc": "2004-12-29T11:12:21Z",
              "ms": 1104318741012.2234
            },
            "end": {
              "local": "2004-12-29T19:12:21+08:00",
              "utc": "2004-12-29T11:12:21Z",
              "ms": 1104318741012.2234
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2004-12-30",
          "window": {
            "start": {
              "local": "2004-12-30T20:14:37+08:00",
              "utc": "2004-12-30T12:14:37Z",
              "ms": 1104408877243.768
            },
            "end": {
              "local": "2004-12-30T20:14:37+08:00",
              "utc": "2004-12-30T12:14:37Z",
              "ms": 1104408877243.768
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:38 on Thu 30 Dec to 08:56 on Fri 31 Dec.",
          "fact": "2004-12-29T22:37:40Z → 2004-12-31T00:56:14Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:12 on the 29th and 20:15 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 29th and is on the 30th.",
          "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 41119 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Beijing, 2004: Thursday 30 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": "2004-12-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2004-12-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Beijing, Saṅkaṣṭa Caturthī 2004 falls on Thursday 30 December. Caturthī runs from 06:38 on Thu 30 Dec to 08:56 on Fri 31 Dec and is current at moonrise that day.",
      "cite": "https://ahargana.org/beijing/festivals/2004/sankashta-chaturthi?on=2004-12-30",
      "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"
  }
}
