{
  "id": "/abu-dhabi/festivals/2015",
  "place": {
    "id": "292968",
    "slug": "abu-dhabi",
    "name": "Abu Dhabi",
    "region": "United Arab Emirates",
    "country": "AE",
    "lat": 24.45118,
    "lon": 54.39696,
    "elevation_m": 6,
    "tz": "Asia/Dubai"
  },
  "year": 2015,
  "tradition": "smarta",
  "method": "pac-rp@2026.1",
  "ruleset": "2026.3-draft",
  "rulings": [
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-01-01",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-01",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 269,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2014-12-31T07:40:07+04:00",
          "utc": "2014-12-31T03:40:07Z",
          "ms": 1419997207385.3242
        },
        "end": {
          "local": "2015-01-01T07:10:56+04:00",
          "utc": "2015-01-01T03:10:56Z",
          "ms": 1420081855984.327
        },
        "month": {
          "amanta": 9,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2014-12-31T07:40:07+04:00",
          "utc": "2014-12-31T03:40:07Z",
          "ms": 1419997207385.3242
        },
        "end": {
          "local": "2015-01-01T07:10:56+04:00",
          "utc": "2015-01-01T03:10:56Z",
          "ms": 1420081855984.327
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2014-12-31",
          "window": {
            "start": {
              "local": "2014-12-31T07:06:09+04:00",
              "utc": "2014-12-31T03:06:09Z",
              "ms": 1419995168572.7017
            },
            "end": {
              "local": "2014-12-31T07:06:09+04:00",
              "utc": "2014-12-31T03:06:09Z",
              "ms": 1419995168572.7017
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-01-01",
          "window": {
            "start": {
              "local": "2015-01-01T07:06:27+04:00",
              "utc": "2015-01-01T03:06:27Z",
              "ms": 1420081587360.8184
            },
            "end": {
              "local": "2015-01-01T07:06:27+04:00",
              "utc": "2015-01-01T03:06:27Z",
              "ms": 1420081587360.8184
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 07:40 on Wed 31 Dec to 07:11 on Thu 1 Jan.",
          "fact": "2014-12-31T03:40:07Z → 2015-01-01T03:10:56Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:06 on the 31st and 07:06 on the 1st.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 31st 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 269 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Abu Dhabi, 2015: Thursday 1 January.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-01-01",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-01",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Putradā Ekādaśī 2015 falls on Thursday 1 January. Ekādaśī runs from 07:40 on Wed 31 Dec to 07:11 on Thu 1 Jan and is current at sunrise that day. It is 4 min 29 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-01-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-01-02",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37785,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-01-02T07:03:05+04:00",
          "utc": "2015-01-02T03:03:05Z",
          "ms": 1420167785386.885
        },
        "end": {
          "local": "2015-01-03T07:16:44+04:00",
          "utc": "2015-01-03T03:16:44Z",
          "ms": 1420255004368.493
        },
        "month": {
          "amanta": 9,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-02T07:03:05+04:00",
          "utc": "2015-01-02T03:03:05Z",
          "ms": 1420167785386.885
        },
        "end": {
          "local": "2015-01-03T07:16:44+04:00",
          "utc": "2015-01-03T03:16:44Z",
          "ms": 1420255004368.493
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-01-02",
          "window": {
            "start": {
              "local": "2015-01-02T17:45:49+04:00",
              "utc": "2015-01-02T13:45:49Z",
              "ms": 1420206349437.6926
            },
            "end": {
              "local": "2015-01-02T19:32:39+04:00",
              "utc": "2015-01-02T15:32:39Z",
              "ms": 1420212758983.2417
            }
          },
          "covered_min": 107,
          "window_min": 107,
          "qualifies": true
        },
        {
          "local_date": "2015-01-03",
          "window": {
            "start": {
              "local": "2015-01-03T17:46:29+04:00",
              "utc": "2015-01-03T13:46:29Z",
              "ms": 1420292789269.6206
            },
            "end": {
              "local": "2015-01-03T19:33:15+04:00",
              "utc": "2015-01-03T15:33:15Z",
              "ms": 1420299195483.6409
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 07:03 on Fri 2 Jan to 07:17 on Sat 3 Jan.",
          "fact": "2015-01-02T03:03:05Z → 2015-01-03T03:16:44Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:46–19:33 on the 2nd, 17:46–19:33 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 107 of 107 minutes on the 2nd and 0 of 107 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 37785 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Friday 2 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": "2015-01-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Friday 2 January. Trayodaśī runs from 07:03 on Fri 2 Jan to 07:17 on Sat 3 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-01-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-01-08",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16526,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-01-08T14:27:13+04:00",
          "utc": "2015-01-08T10:27:13Z",
          "ms": 1420712833082.876
        },
        "end": {
          "local": "2015-01-09T17:01:45+04:00",
          "utc": "2015-01-09T13:01:45Z",
          "ms": 1420808504662.6213
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-08T14:27:13+04:00",
          "utc": "2015-01-08T10:27:13Z",
          "ms": 1420712833082.876
        },
        "end": {
          "local": "2015-01-09T17:01:45+04:00",
          "utc": "2015-01-09T13:01:45Z",
          "ms": 1420808504662.6213
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-01-08",
          "window": {
            "start": {
              "local": "2015-01-08T20:47:22+04:00",
              "utc": "2015-01-08T16:47:22Z",
              "ms": 1420735642166.088
            },
            "end": {
              "local": "2015-01-08T20:47:22+04:00",
              "utc": "2015-01-08T16:47:22Z",
              "ms": 1420735642166.088
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-01-09",
          "window": {
            "start": {
              "local": "2015-01-09T21:37:11+04:00",
              "utc": "2015-01-09T17:37:11Z",
              "ms": 1420825030621.0813
            },
            "end": {
              "local": "2015-01-09T21:37:11+04:00",
              "utc": "2015-01-09T17:37:11Z",
              "ms": 1420825030621.0813
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 14:27 on Thu 8 Jan to 17:02 on Fri 9 Jan.",
          "fact": "2015-01-08T10:27:13Z → 2015-01-09T13:01:45Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:47 on the 8th and 21:37 on the 9th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 8th and is not on the 9th.",
          "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 16526 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Thursday 8 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": "2015-01-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Thursday 8 January. Caturthī runs from 14:27 on Thu 8 Jan to 17:02 on Fri 9 Jan and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-01-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/bhogi",
      "festival": "bhogi",
      "name": "Bhogi",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-14",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 221,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        },
        "end": {
          "local": "2015-02-13T06:57:00+04:00",
          "utc": "2015-02-13T02:57:00Z",
          "ms": 1423796219594.9927
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        },
        "end": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2015-01-14",
          "window": {
            "start": {
              "local": "2015-01-13T17:53:33+04:00",
              "utc": "2015-01-13T13:53:33Z",
              "ms": 1421157212950.2341
            },
            "end": {
              "local": "2015-01-14T17:54:17+04:00",
              "utc": "2015-01-14T13:54:17Z",
              "ms": 1421243657058.4404
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        },
        {
          "local_date": "2015-01-15",
          "window": {
            "start": {
              "local": "2015-01-14T17:54:17+04:00",
              "utc": "2015-01-14T13:54:17Z",
              "ms": 1421243657058.4404
            },
            "end": {
              "local": "2015-01-15T17:55:01+04:00",
              "utc": "2015-01-15T13:55:01Z",
              "ms": 1421330101338.3682
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "2015-01-15",
        "days": -1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 17:58 on Wed 14 Jan.",
          "fact": "2015-01-14T13:57:58Z · 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 17:54, and the day of the 15th ends at 17:55.",
          "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 221 s < 300 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, Abu Dhabi, 2015: Wednesday 14 January.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2015-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-14",
          "confidence": "boundary"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2015-01-13",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "2015-01-13",
          "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 Abu Dhabi, Bhogi 2015 falls on Wednesday 14 January. It is kept the day before Pongal, which falls on Thursday 15 January. The Sun enters Makara at 17:58 on Wed 14 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 midnight, or counted from sunrise, as in Orissa, it is 13 January. It is 3 min 41 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/makara-sankranti",
      "festival": "makara-sankranti",
      "name": "Makara Saṅkrānti",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21722,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        },
        "end": {
          "local": "2015-02-13T06:57:00+04:00",
          "utc": "2015-02-13T02:57:00Z",
          "ms": 1423796219594.9927
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        },
        "end": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        }
      },
      "kaala": "civil-day",
      "days": [
        {
          "local_date": "2015-01-14",
          "window": {
            "start": {
              "local": "2015-01-14T00:00:00+04:00",
              "utc": "2015-01-13T20:00:00Z",
              "ms": 1421179200000
            },
            "end": {
              "local": "2015-01-15T00:00:00+04:00",
              "utc": "2015-01-14T20:00:00Z",
              "ms": 1421265600000
            }
          },
          "covered_min": 1,
          "window_min": 1440,
          "qualifies": true
        },
        {
          "local_date": "2015-01-15",
          "window": {
            "start": {
              "local": "2015-01-15T00:00:00+04:00",
              "utc": "2015-01-14T20:00:00Z",
              "ms": 1421265600000
            },
            "end": {
              "local": "2015-01-16T00:00:00+04:00",
              "utc": "2015-01-15T20:00:00Z",
              "ms": 1421352000000
            }
          },
          "covered_min": 0,
          "window_min": 1440,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 17:58 on Wed 14 Jan.",
          "fact": "2015-01-14T13:57:58Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from midnight to midnight, on the clock of Abu Dhabi.",
          "fact": "civil-day: midnight-to-midnight · Asia/Dubai"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 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 midnight → only-day · margin 21722 s"
        },
        {
          "step": "ruling",
          "text": "Makara Saṅkrānti, Abu Dhabi, 2015: Wednesday 14 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "makara-sankranti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        ],
        "rashi": "Makara",
        "day_from": "midnight"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "2015-01-14",
          "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": "2015-01-15",
          "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 Abu Dhabi, Makara Saṅkrānti 2015 falls on Wednesday 14 January. The Sun enters Makara at 17:58 on Wed 14 Jan, and the rule counts the day from midnight. By the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 15 January.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pongal",
      "festival": "pongal",
      "name": "Pongal",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-15",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 221,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        },
        "end": {
          "local": "2015-02-13T06:57:00+04:00",
          "utc": "2015-02-13T02:57:00Z",
          "ms": 1423796219594.9927
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        },
        "end": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2015-01-14",
          "window": {
            "start": {
              "local": "2015-01-13T17:53:33+04:00",
              "utc": "2015-01-13T13:53:33Z",
              "ms": 1421157212950.2341
            },
            "end": {
              "local": "2015-01-14T17:54:17+04:00",
              "utc": "2015-01-14T13:54:17Z",
              "ms": 1421243657058.4404
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        },
        {
          "local_date": "2015-01-15",
          "window": {
            "start": {
              "local": "2015-01-14T17:54:17+04:00",
              "utc": "2015-01-14T13:54:17Z",
              "ms": 1421243657058.4404
            },
            "end": {
              "local": "2015-01-15T17:55:01+04:00",
              "utc": "2015-01-15T13:55:01Z",
              "ms": 1421330101338.3682
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 17:58 on Wed 14 Jan.",
          "fact": "2015-01-14T13:57:58Z · 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 17:54, and the day of the 15th ends at 17:55.",
          "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 221 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Pongal, Abu Dhabi, 2015: Thursday 15 January.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2015-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-15",
          "confidence": "boundary"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2015-01-14",
          "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": "2015-01-14",
          "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 Abu Dhabi, Pongal 2015 falls on Thursday 15 January. The Sun enters Makara at 17:58 on Wed 14 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 midnight, or counted from sunrise, as in Orissa, it is 14 January. It is 3 min 41 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/mattu-pongal",
      "festival": "mattu-pongal",
      "name": "Mattu Pongal",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-16",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 221,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        },
        "end": {
          "local": "2015-02-13T06:57:00+04:00",
          "utc": "2015-02-13T02:57:00Z",
          "ms": 1423796219594.9927
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        },
        "end": {
          "local": "2015-01-14T17:57:58+04:00",
          "utc": "2015-01-14T13:57:58Z",
          "ms": 1421243877879.9688
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2015-01-14",
          "window": {
            "start": {
              "local": "2015-01-13T17:53:33+04:00",
              "utc": "2015-01-13T13:53:33Z",
              "ms": 1421157212950.2341
            },
            "end": {
              "local": "2015-01-14T17:54:17+04:00",
              "utc": "2015-01-14T13:54:17Z",
              "ms": 1421243657058.4404
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        },
        {
          "local_date": "2015-01-15",
          "window": {
            "start": {
              "local": "2015-01-14T17:54:17+04:00",
              "utc": "2015-01-14T13:54:17Z",
              "ms": 1421243657058.4404
            },
            "end": {
              "local": "2015-01-15T17:55:01+04:00",
              "utc": "2015-01-15T13:55:01Z",
              "ms": 1421330101338.3682
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "2015-01-15",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 17:58 on Wed 14 Jan.",
          "fact": "2015-01-14T13:57:58Z · 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 17:54, and the day of the 15th ends at 17:55.",
          "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 221 s < 300 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, Abu Dhabi, 2015: Friday 16 January.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2015-01-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-16",
          "confidence": "boundary"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2015-01-15",
          "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": "2015-01-15",
          "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 Abu Dhabi, Mattu Pongal 2015 falls on Friday 16 January. It is kept the day after Pongal, which falls on Thursday 15 January. The Sun enters Makara at 17:58 on Wed 14 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 midnight, or counted from sunrise, as in Orissa, it is 15 January. It is 3 min 41 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-01-16",
      "festival": "ekadashi",
      "name": "Ṣaṭtilā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11808,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-01-16T03:51:38+04:00",
          "utc": "2015-01-15T23:51:38Z",
          "ms": 1421365898179.474
        },
        "end": {
          "local": "2015-01-17T03:09:57+04:00",
          "utc": "2015-01-16T23:09:57Z",
          "ms": 1421449797219.2778
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-16T03:51:38+04:00",
          "utc": "2015-01-15T23:51:38Z",
          "ms": 1421365898179.474
        },
        "end": {
          "local": "2015-01-17T03:09:57+04:00",
          "utc": "2015-01-16T23:09:57Z",
          "ms": 1421449797219.2778
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-01-16",
          "window": {
            "start": {
              "local": "2015-01-16T07:08:26+04:00",
              "utc": "2015-01-16T03:08:26Z",
              "ms": 1421377705850.3738
            },
            "end": {
              "local": "2015-01-16T07:08:26+04:00",
              "utc": "2015-01-16T03:08:26Z",
              "ms": 1421377705850.3738
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-01-17",
          "window": {
            "start": {
              "local": "2015-01-17T07:08:22+04:00",
              "utc": "2015-01-17T03:08:22Z",
              "ms": 1421464102438.0557
            },
            "end": {
              "local": "2015-01-17T07:08:22+04:00",
              "utc": "2015-01-17T03:08:22Z",
              "ms": 1421464102438.0557
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 03:52 on Fri 16 Jan to 03:10 on Sat 17 Jan.",
          "fact": "2015-01-15T23:51:38Z → 2015-01-16T23:09:57Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:08 on the 16th and 07:08 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 11808 s"
        },
        {
          "step": "ruling",
          "text": "Ṣaṭtilā Ekādaśī, Abu Dhabi, 2015: Friday 16 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": "2015-01-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Ṣaṭtilā Ekādaśī 2015 falls on Friday 16 January. Ekādaśī runs from 03:52 on Fri 16 Jan to 03:10 on Sat 17 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-01-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-01-18",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13094,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-01-18T01:37:30+04:00",
          "utc": "2015-01-17T21:37:30Z",
          "ms": 1421530650018.438
        },
        "end": {
          "local": "2015-01-18T23:20:57+04:00",
          "utc": "2015-01-18T19:20:57Z",
          "ms": 1421608856563.3213
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-18T01:37:30+04:00",
          "utc": "2015-01-17T21:37:30Z",
          "ms": 1421530650018.438
        },
        "end": {
          "local": "2015-01-18T23:20:57+04:00",
          "utc": "2015-01-18T19:20:57Z",
          "ms": 1421608856563.3213
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-01-17",
          "window": {
            "start": {
              "local": "2015-01-17T17:56:30+04:00",
              "utc": "2015-01-17T13:56:30Z",
              "ms": 1421502990267.9053
            },
            "end": {
              "local": "2015-01-17T19:42:05+04:00",
              "utc": "2015-01-17T15:42:05Z",
              "ms": 1421509324576.9385
            }
          },
          "covered_min": 0,
          "window_min": 106,
          "qualifies": false
        },
        {
          "local_date": "2015-01-18",
          "window": {
            "start": {
              "local": "2015-01-18T17:57:15+04:00",
              "utc": "2015-01-18T13:57:15Z",
              "ms": 1421589434843.9238
            },
            "end": {
              "local": "2015-01-18T19:42:42+04:00",
              "utc": "2015-01-18T15:42:42Z",
              "ms": 1421595762370.294
            }
          },
          "covered_min": 105,
          "window_min": 105,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 01:38 on Sun 18 Jan to 23:21 on Sun 18 Jan.",
          "fact": "2015-01-17T21:37:30Z → 2015-01-18T19:20:57Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:57–19:42 on the 17th, 17:57–19:43 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 105 of 105 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 13094 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Sunday 18 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": "2015-01-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Sunday 18 January. Trayodaśī runs from 01:38 on Sun 18 Jan to 23:21 on Sun 18 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-01-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-01-18",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2867,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-01-18T23:20:57+04:00",
          "utc": "2015-01-18T19:20:57Z",
          "ms": 1421608856563.3213
        },
        "end": {
          "local": "2015-01-19T20:29:28+04:00",
          "utc": "2015-01-19T16:29:28Z",
          "ms": 1421684968313.0457
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-18T23:20:57+04:00",
          "utc": "2015-01-18T19:20:57Z",
          "ms": 1421608856563.3213
        },
        "end": {
          "local": "2015-01-19T20:29:28+04:00",
          "utc": "2015-01-19T16:29:28Z",
          "ms": 1421684968313.0457
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-01-18",
          "window": {
            "start": {
              "local": "2015-01-19T00:08:43+04:00",
              "utc": "2015-01-18T20:08:43Z",
              "ms": 1421611723067.812
            },
            "end": {
              "local": "2015-01-19T00:56:43+04:00",
              "utc": "2015-01-18T20:56:43Z",
              "ms": 1421614603067.812
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-01-19",
          "window": {
            "start": {
              "local": "2015-01-20T00:09:01+04:00",
              "utc": "2015-01-19T20:09:01Z",
              "ms": 1421698141499.6992
            },
            "end": {
              "local": "2015-01-20T00:57:01+04:00",
              "utc": "2015-01-19T20:57:01Z",
              "ms": 1421701021499.6992
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 23:21 on Sun 18 Jan to 20:29 on Mon 19 Jan.",
          "fact": "2015-01-18T19:20:57Z → 2015-01-19T16:29:28Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 18th, 00:09–00:57 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2867 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Sunday 18 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": "2015-01-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Sunday 18 January. Caturdaśī runs from 23:21 on Sun 18 Jan to 20:29 on Mon 19 Jan and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-01-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/yama-tarpana",
      "festival": "yama-tarpana",
      "name": "Yama Tarpaṇa",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21707,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-01-18T23:20:57+04:00",
          "utc": "2015-01-18T19:20:57Z",
          "ms": 1421608856563.3213
        },
        "end": {
          "local": "2015-01-19T20:29:28+04:00",
          "utc": "2015-01-19T16:29:28Z",
          "ms": 1421684968313.0457
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-18T23:20:57+04:00",
          "utc": "2015-01-18T19:20:57Z",
          "ms": 1421608856563.3213
        },
        "end": {
          "local": "2015-01-19T20:29:28+04:00",
          "utc": "2015-01-19T16:29:28Z",
          "ms": 1421684968313.0457
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2015-01-19",
          "window": {
            "start": {
              "local": "2015-01-19T05:22:44+04:00",
              "utc": "2015-01-19T01:22:44Z",
              "ms": 1421630563765.3303
            },
            "end": {
              "local": "2015-01-19T07:08:11+04:00",
              "utc": "2015-01-19T03:08:11Z",
              "ms": 1421636891291.7004
            }
          },
          "covered_min": 105,
          "window_min": 105,
          "qualifies": true
        },
        {
          "local_date": "2015-01-20",
          "window": {
            "start": {
              "local": "2015-01-20T05:22:43+04:00",
              "utc": "2015-01-20T01:22:43Z",
              "ms": 1421716963006.9075
            },
            "end": {
              "local": "2015-01-20T07:08:04+04:00",
              "utc": "2015-01-20T03:08:04Z",
              "ms": 1421723283554.9834
            }
          },
          "covered_min": 0,
          "window_min": 105,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 23:21 on Sun 18 Jan to 20:29 on Mon 19 Jan.",
          "fact": "2015-01-18T19:20:57Z → 2015-01-19T16:29:28Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:23–07:08 on the 19th, 05:23–07:08 on the 20th.",
          "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 105 of 105 minutes on the 19th and 0 of 105 on the 20th.",
          "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 21707 s"
        },
        {
          "step": "ruling",
          "text": "Yama Tarpaṇa, Abu Dhabi, 2015: Monday 19 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": "2015-01-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Yama Tarpaṇa 2015 falls on Monday 19 January. Caturdaśī runs from 23:21 on Sun 18 Jan to 20:29 on Mon 19 Jan and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ganesha-jayanti",
      "festival": "ganesha-jayanti",
      "name": "Gaṇeśa Jayantī",
      "everyday": "Maghi Ganesh Jayanti",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19147,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-01-23T06:51:07+04:00",
          "utc": "2015-01-23T02:51:07Z",
          "ms": 1421981467398.8584
        },
        "end": {
          "local": "2015-01-24T03:45:58+04:00",
          "utc": "2015-01-23T23:45:58Z",
          "ms": 1422056758022.8909
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-23T06:51:07+04:00",
          "utc": "2015-01-23T02:51:07Z",
          "ms": 1421981467398.8584
        },
        "end": {
          "local": "2015-01-24T03:45:58+04:00",
          "utc": "2015-01-23T23:45:58Z",
          "ms": 1422056758022.8909
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-01-23",
          "window": {
            "start": {
              "local": "2015-01-23T12:10:15+04:00",
              "utc": "2015-01-23T08:10:15Z",
              "ms": 1422000614516.7642
            },
            "end": {
              "local": "2015-01-23T12:58:15+04:00",
              "utc": "2015-01-23T08:58:15Z",
              "ms": 1422003494516.7642
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-01-24",
          "window": {
            "start": {
              "local": "2015-01-24T12:10:30+04:00",
              "utc": "2015-01-24T08:10:30Z",
              "ms": 1422087029852.1392
            },
            "end": {
              "local": "2015-01-24T12:58:30+04:00",
              "utc": "2015-01-24T08:58:30Z",
              "ms": 1422089909852.1392
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:51 on Fri 23 Jan to 03:46 on Sat 24 Jan.",
          "fact": "2015-01-23T02:51:07Z → 2015-01-23T23:45:58Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 23rd, 12:10–12:58 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 19147 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Jayantī, Abu Dhabi, 2015: Friday 23 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": "2015-01-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2015 falls on Friday 23 January. Caturthī runs from 06:51 on Fri 23 Jan to 03:46 on Sat 24 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/tila-chaturthi",
      "festival": "tila-chaturthi",
      "name": "Tila Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28810,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-01-23T06:51:07+04:00",
          "utc": "2015-01-23T02:51:07Z",
          "ms": 1421981467398.8584
        },
        "end": {
          "local": "2015-01-24T03:45:58+04:00",
          "utc": "2015-01-23T23:45:58Z",
          "ms": 1422056758022.8909
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-23T06:51:07+04:00",
          "utc": "2015-01-23T02:51:07Z",
          "ms": 1421981467398.8584
        },
        "end": {
          "local": "2015-01-24T03:45:58+04:00",
          "utc": "2015-01-23T23:45:58Z",
          "ms": 1422056758022.8909
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-01-22",
          "window": {
            "start": {
              "local": "2015-01-22T18:00:13+04:00",
              "utc": "2015-01-22T14:00:13Z",
              "ms": 1421935213021.0483
            },
            "end": {
              "local": "2015-01-22T19:45:12+04:00",
              "utc": "2015-01-22T15:45:12Z",
              "ms": 1421941511509.03
            }
          },
          "covered_min": 0,
          "window_min": 105,
          "qualifies": false
        },
        {
          "local_date": "2015-01-23",
          "window": {
            "start": {
              "local": "2015-01-23T18:00:57+04:00",
              "utc": "2015-01-23T14:00:57Z",
              "ms": 1422021657352.6172
            },
            "end": {
              "local": "2015-01-23T19:45:48+04:00",
              "utc": "2015-01-23T15:45:48Z",
              "ms": 1422027948128.536
            }
          },
          "covered_min": 105,
          "window_min": 105,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:51 on Fri 23 Jan to 03:46 on Sat 24 Jan.",
          "fact": "2015-01-23T02:51:07Z → 2015-01-23T23:45:58Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:00–19:45 on the 22nd, 18:01–19:46 on the 23rd.",
          "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 105 minutes on the 22nd and 105 of 105 on the 23rd.",
          "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 28810 s"
        },
        {
          "step": "ruling",
          "text": "Tila Caturthī, Abu Dhabi, 2015: Friday 23 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": "2015-01-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Tila Caturthī 2015 falls on Friday 23 January. Caturthī runs from 06:51 on Fri 23 Jan to 03:46 on Sat 24 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/shri-panchami",
      "festival": "shri-panchami",
      "name": "Śrī Pañcamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30272,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2015-01-24T03:45:58+04:00",
          "utc": "2015-01-23T23:45:58Z",
          "ms": 1422056758022.8909
        },
        "end": {
          "local": "2015-01-25T01:06:01+04:00",
          "utc": "2015-01-24T21:06:01Z",
          "ms": 1422133561345.8967
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-24T03:45:58+04:00",
          "utc": "2015-01-23T23:45:58Z",
          "ms": 1422056758022.8909
        },
        "end": {
          "local": "2015-01-25T01:06:01+04:00",
          "utc": "2015-01-24T21:06:01Z",
          "ms": 1422133561345.8967
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-01-24",
          "window": {
            "start": {
              "local": "2015-01-24T12:10:30+04:00",
              "utc": "2015-01-24T08:10:30Z",
              "ms": 1422087029852.1392
            },
            "end": {
              "local": "2015-01-24T12:58:30+04:00",
              "utc": "2015-01-24T08:58:30Z",
              "ms": 1422089909852.1392
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-01-25",
          "window": {
            "start": {
              "local": "2015-01-25T12:10:44+04:00",
              "utc": "2015-01-25T08:10:44Z",
              "ms": 1422173444379.1912
            },
            "end": {
              "local": "2015-01-25T12:58:44+04:00",
              "utc": "2015-01-25T08:58:44Z",
              "ms": 1422176324379.1912
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 03:46 on Sat 24 Jan to 01:06 on Sun 25 Jan.",
          "fact": "2015-01-23T23:45:58Z → 2015-01-24T21:06:01Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 24th, 12:11–12:59 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 30272 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Pañcamī, Abu Dhabi, 2015: Saturday 24 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": "2015-01-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śrī Pañcamī 2015 falls on Saturday 24 January. Pañcamī runs from 03:46 on Sat 24 Jan to 01:06 on Sun 25 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vasanta-panchami",
      "festival": "vasanta-panchami",
      "name": "Vasanta Pañcamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30272,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2015-01-24T03:45:58+04:00",
          "utc": "2015-01-23T23:45:58Z",
          "ms": 1422056758022.8909
        },
        "end": {
          "local": "2015-01-25T01:06:01+04:00",
          "utc": "2015-01-24T21:06:01Z",
          "ms": 1422133561345.8967
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-24T03:45:58+04:00",
          "utc": "2015-01-23T23:45:58Z",
          "ms": 1422056758022.8909
        },
        "end": {
          "local": "2015-01-25T01:06:01+04:00",
          "utc": "2015-01-24T21:06:01Z",
          "ms": 1422133561345.8967
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-01-24",
          "window": {
            "start": {
              "local": "2015-01-24T12:10:30+04:00",
              "utc": "2015-01-24T08:10:30Z",
              "ms": 1422087029852.1392
            },
            "end": {
              "local": "2015-01-24T12:58:30+04:00",
              "utc": "2015-01-24T08:58:30Z",
              "ms": 1422089909852.1392
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-01-25",
          "window": {
            "start": {
              "local": "2015-01-25T12:10:44+04:00",
              "utc": "2015-01-25T08:10:44Z",
              "ms": 1422173444379.1912
            },
            "end": {
              "local": "2015-01-25T12:58:44+04:00",
              "utc": "2015-01-25T08:58:44Z",
              "ms": 1422176324379.1912
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 03:46 on Sat 24 Jan to 01:06 on Sun 25 Jan.",
          "fact": "2015-01-23T23:45:58Z → 2015-01-24T21:06:01Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 24th, 12:11–12:59 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 30272 s"
        },
        {
          "step": "ruling",
          "text": "Vasanta Pañcamī, Abu Dhabi, 2015: Saturday 24 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": "2015-01-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vasanta Pañcamī 2015 falls on Saturday 24 January. Pañcamī runs from 03:46 on Sat 24 Jan to 01:06 on Sun 25 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ratha-saptami",
      "festival": "ratha-saptami",
      "name": "Ratha Saptamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23112,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2015-01-25T22:57:00+04:00",
          "utc": "2015-01-25T18:57:00Z",
          "ms": 1422212219848.5034
        },
        "end": {
          "local": "2015-01-26T21:22:22+04:00",
          "utc": "2015-01-26T17:22:22Z",
          "ms": 1422292941795.7615
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-25T22:57:00+04:00",
          "utc": "2015-01-25T18:57:00Z",
          "ms": 1422212219848.5034
        },
        "end": {
          "local": "2015-01-26T21:22:22+04:00",
          "utc": "2015-01-26T17:22:22Z",
          "ms": 1422292941795.7615
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2015-01-26",
          "window": {
            "start": {
              "local": "2015-01-26T05:22:12+04:00",
              "utc": "2015-01-26T01:22:12Z",
              "ms": 1422235332012.5327
            },
            "end": {
              "local": "2015-01-26T07:06:47+04:00",
              "utc": "2015-01-26T03:06:47Z",
              "ms": 1422241606855.903
            }
          },
          "covered_min": 105,
          "window_min": 105,
          "qualifies": true
        },
        {
          "local_date": "2015-01-27",
          "window": {
            "start": {
              "local": "2015-01-27T05:22:02+04:00",
              "utc": "2015-01-27T01:22:02Z",
              "ms": 1422321722433.8528
            },
            "end": {
              "local": "2015-01-27T07:06:29+04:00",
              "utc": "2015-01-27T03:06:29Z",
              "ms": 1422327989066.6287
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 22:57 on Sun 25 Jan to 21:22 on Mon 26 Jan.",
          "fact": "2015-01-25T18:57:00Z → 2015-01-26T17:22:22Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:22–07:07 on the 26th, 05:22–07:06 on the 27th.",
          "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 105 of 105 minutes on the 26th and 0 of 104 on the 27th.",
          "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 23112 s"
        },
        {
          "step": "ruling",
          "text": "Ratha Saptamī, Abu Dhabi, 2015: Monday 26 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": "2015-01-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Ratha Saptamī 2015 falls on Monday 26 January. Saptamī runs from 22:57 on Sun 25 Jan to 21:22 on Mon 26 Jan and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-01-30",
      "festival": "ekadashi",
      "name": "Jayā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37253,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-01-29T20:06:57+04:00",
          "utc": "2015-01-29T16:06:57Z",
          "ms": 1422547616824.9668
        },
        "end": {
          "local": "2015-01-30T20:44:11+04:00",
          "utc": "2015-01-30T16:44:11Z",
          "ms": 1422636251015.9448
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-29T20:06:57+04:00",
          "utc": "2015-01-29T16:06:57Z",
          "ms": 1422547616824.9668
        },
        "end": {
          "local": "2015-01-30T20:44:11+04:00",
          "utc": "2015-01-30T16:44:11Z",
          "ms": 1422636251015.9448
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-01-30",
          "window": {
            "start": {
              "local": "2015-01-30T07:05:27+04:00",
              "utc": "2015-01-30T03:05:27Z",
              "ms": 1422587127326.9092
            },
            "end": {
              "local": "2015-01-30T07:05:27+04:00",
              "utc": "2015-01-30T03:05:27Z",
              "ms": 1422587127326.9092
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-01-31",
          "window": {
            "start": {
              "local": "2015-01-31T07:05:04+04:00",
              "utc": "2015-01-31T03:05:04Z",
              "ms": 1422673504008.868
            },
            "end": {
              "local": "2015-01-31T07:05:04+04:00",
              "utc": "2015-01-31T03:05:04Z",
              "ms": 1422673504008.868
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 20:07 on Thu 29 Jan to 20:44 on Fri 30 Jan.",
          "fact": "2015-01-29T16:06:57Z → 2015-01-30T16:44:11Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:05 on the 30th and 07:05 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 37253 s"
        },
        {
          "step": "ruling",
          "text": "Jayā Ekādaśī, Abu Dhabi, 2015: Friday 30 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": "2015-01-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Jayā Ekādaśī 2015 falls on Friday 30 January. Ekādaśī runs from 20:07 on Thu 29 Jan to 20:44 on Fri 30 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-01-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/bhishma-dvadashi",
      "festival": "bhishma-dvadashi",
      "name": "Bhīṣma Dvādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-01-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27866,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2015-01-30T20:44:11+04:00",
          "utc": "2015-01-30T16:44:11Z",
          "ms": 1422636251015.9448
        },
        "end": {
          "local": "2015-01-31T21:47:30+04:00",
          "utc": "2015-01-31T17:47:30Z",
          "ms": 1422726449986.2974
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-30T20:44:11+04:00",
          "utc": "2015-01-30T16:44:11Z",
          "ms": 1422636251015.9448
        },
        "end": {
          "local": "2015-01-31T21:47:30+04:00",
          "utc": "2015-01-31T17:47:30Z",
          "ms": 1422726449986.2974
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-01-30",
          "window": {
            "start": {
              "local": "2015-01-30T12:11:45+04:00",
              "utc": "2015-01-30T08:11:45Z",
              "ms": 1422605504635.268
            },
            "end": {
              "local": "2015-01-30T12:59:45+04:00",
              "utc": "2015-01-30T08:59:45Z",
              "ms": 1422608384635.268
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-01-31",
          "window": {
            "start": {
              "local": "2015-01-31T12:11:54+04:00",
              "utc": "2015-01-31T08:11:54Z",
              "ms": 1422691914188.8784
            },
            "end": {
              "local": "2015-01-31T12:59:54+04:00",
              "utc": "2015-01-31T08:59:54Z",
              "ms": 1422694794188.8784
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 20:44 on Fri 30 Jan to 21:47 on Sat 31 Jan.",
          "fact": "2015-01-30T16:44:11Z → 2015-01-31T17:47:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 30th, 12:12–13:00 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 27866 s"
        },
        {
          "step": "ruling",
          "text": "Bhīṣma Dvādaśī, Abu Dhabi, 2015: Saturday 31 January.",
          "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": "2015-01-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-01-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Bhīṣma Dvādaśī 2015 falls on Saturday 31 January. Dvādaśī runs from 20:44 on Fri 30 Jan to 21:47 on Sat 31 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-02-01",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-02-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7022,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-01-31T21:47:30+04:00",
          "utc": "2015-01-31T17:47:30Z",
          "ms": 1422726449986.2974
        },
        "end": {
          "local": "2015-02-01T23:14:10+04:00",
          "utc": "2015-02-01T19:14:10Z",
          "ms": 1422818050358.9924
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-01-31T21:47:30+04:00",
          "utc": "2015-01-31T17:47:30Z",
          "ms": 1422726449986.2974
        },
        "end": {
          "local": "2015-02-01T23:14:10+04:00",
          "utc": "2015-02-01T19:14:10Z",
          "ms": 1422818050358.9924
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-01-31",
          "window": {
            "start": {
              "local": "2015-01-31T18:06:44+04:00",
              "utc": "2015-01-31T14:06:44Z",
              "ms": 1422713204368.8887
            },
            "end": {
              "local": "2015-01-31T19:50:28+04:00",
              "utc": "2015-01-31T15:50:28Z",
              "ms": 1422719427699.8872
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        },
        {
          "local_date": "2015-02-01",
          "window": {
            "start": {
              "local": "2015-02-01T18:07:26+04:00",
              "utc": "2015-02-01T14:07:26Z",
              "ms": 1422799646470.0842
            },
            "end": {
              "local": "2015-02-01T19:51:01+04:00",
              "utc": "2015-02-01T15:51:01Z",
              "ms": 1422805860723.9358
            }
          },
          "covered_min": 104,
          "window_min": 104,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 21:47 on Sat 31 Jan to 23:14 on Sun 1 Feb.",
          "fact": "2015-01-31T17:47:30Z → 2015-02-01T19:14:10Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:50 on the 31st, 18:07–19:51 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 104 minutes on the 31st and 104 of 104 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7022 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Sunday 1 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": "2015-02-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-02-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Sunday 1 February. Trayodaśī runs from 21:47 on Sat 31 Jan to 23:14 on Sun 1 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-02-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/maghi-purnima",
      "festival": "maghi-purnima",
      "name": "Māghī Pūrṇimā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-02-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32608,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-02-03T01:02:00+04:00",
          "utc": "2015-02-02T21:02:00Z",
          "ms": 1422910919824.085
        },
        "end": {
          "local": "2015-02-04T03:08:56+04:00",
          "utc": "2015-02-03T23:08:56Z",
          "ms": 1423004936309.8447
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-02-03T01:02:00+04:00",
          "utc": "2015-02-02T21:02:00Z",
          "ms": 1422910919824.085
        },
        "end": {
          "local": "2015-02-04T03:08:56+04:00",
          "utc": "2015-02-03T23:08:56Z",
          "ms": 1423004936309.8447
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-02-03",
          "window": {
            "start": {
              "local": "2015-02-03T12:12:18+04:00",
              "utc": "2015-02-03T08:12:18Z",
              "ms": 1422951137872.726
            },
            "end": {
              "local": "2015-02-03T13:00:18+04:00",
              "utc": "2015-02-03T09:00:18Z",
              "ms": 1422954017872.726
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-02-04",
          "window": {
            "start": {
              "local": "2015-02-04T12:12:24+04:00",
              "utc": "2015-02-04T08:12:24Z",
              "ms": 1423037544122.255
            },
            "end": {
              "local": "2015-02-04T13:00:24+04:00",
              "utc": "2015-02-04T09:00:24Z",
              "ms": 1423040424122.255
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 01:02 on Tue 3 Feb to 03:09 on Wed 4 Feb.",
          "fact": "2015-02-02T21:02:00Z → 2015-02-03T23:08:56Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 3rd, 12:12–13:00 on the 4th.",
          "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 3rd and 0 of 48 on the 4th.",
          "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 32608 s"
        },
        {
          "step": "ruling",
          "text": "Māghī Pūrṇimā, Abu Dhabi, 2015: Tuesday 3 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": "2015-02-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-02-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Māghī Pūrṇimā 2015 falls on Tuesday 3 February. Pūrṇimā runs from 01:02 on Tue 3 Feb to 03:09 on Wed 4 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-02-07",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-02-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30557,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-02-07T10:51:02+04:00",
          "utc": "2015-02-07T06:51:02Z",
          "ms": 1423291861771.2876
        },
        "end": {
          "local": "2015-02-08T13:31:15+04:00",
          "utc": "2015-02-08T09:31:15Z",
          "ms": 1423387874646.2764
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-02-07T10:51:02+04:00",
          "utc": "2015-02-07T06:51:02Z",
          "ms": 1423291861771.2876
        },
        "end": {
          "local": "2015-02-08T13:31:15+04:00",
          "utc": "2015-02-08T09:31:15Z",
          "ms": 1423387874646.2764
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-02-07",
          "window": {
            "start": {
              "local": "2015-02-07T21:10:50+04:00",
              "utc": "2015-02-07T17:10:50Z",
              "ms": 1423329049674.9731
            },
            "end": {
              "local": "2015-02-07T21:10:50+04:00",
              "utc": "2015-02-07T17:10:50Z",
              "ms": 1423329049674.9731
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-02-08",
          "window": {
            "start": {
              "local": "2015-02-08T22:00:32+04:00",
              "utc": "2015-02-08T18:00:32Z",
              "ms": 1423418431853.8997
            },
            "end": {
              "local": "2015-02-08T22:00:32+04:00",
              "utc": "2015-02-08T18:00:32Z",
              "ms": 1423418431853.8997
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:51 on Sat 7 Feb to 13:31 on Sun 8 Feb.",
          "fact": "2015-02-07T06:51:02Z → 2015-02-08T09:31:15Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:11 on the 7th and 22:01 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 30557 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Saturday 7 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": "2015-02-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-02-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Saturday 7 February. Caturthī runs from 10:51 on Sat 7 Feb to 13:31 on Sun 8 Feb and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-02-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-02-15",
      "festival": "ekadashi",
      "name": "Vijayā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-02-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35730,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-02-14T18:45:50+04:00",
          "utc": "2015-02-14T14:45:50Z",
          "ms": 1423925149888.913
        },
        "end": {
          "local": "2015-02-15T16:52:15+04:00",
          "utc": "2015-02-15T12:52:15Z",
          "ms": 1424004735406.983
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-02-14T18:45:50+04:00",
          "utc": "2015-02-14T14:45:50Z",
          "ms": 1423925149888.913
        },
        "end": {
          "local": "2015-02-15T16:52:15+04:00",
          "utc": "2015-02-15T12:52:15Z",
          "ms": 1424004735406.983
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-02-14",
          "window": {
            "start": {
              "local": "2015-02-14T06:57:27+04:00",
              "utc": "2015-02-14T02:57:27Z",
              "ms": 1423882646648.173
            },
            "end": {
              "local": "2015-02-14T06:57:27+04:00",
              "utc": "2015-02-14T02:57:27Z",
              "ms": 1423882646648.173
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-02-15",
          "window": {
            "start": {
              "local": "2015-02-15T06:56:46+04:00",
              "utc": "2015-02-15T02:56:46Z",
              "ms": 1423969005547.3455
            },
            "end": {
              "local": "2015-02-15T06:56:46+04:00",
              "utc": "2015-02-15T02:56:46Z",
              "ms": 1423969005547.3455
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 18:46 on Sat 14 Feb to 16:52 on Sun 15 Feb.",
          "fact": "2015-02-14T14:45:50Z → 2015-02-15T12:52:15Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:57 on the 14th and 06:57 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 35730 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Ekādaśī, Abu Dhabi, 2015: Sunday 15 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": "2015-02-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-02-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vijayā Ekādaśī 2015 falls on Sunday 15 February. Ekādaśī runs from 18:46 on Sat 14 Feb to 16:52 on Sun 15 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-02-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-02-16",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-02-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14461,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-02-16T14:16:12+04:00",
          "utc": "2015-02-16T10:16:12Z",
          "ms": 1424081772202.968
        },
        "end": {
          "local": "2015-02-17T11:06:27+04:00",
          "utc": "2015-02-17T07:06:27Z",
          "ms": 1424156786767.3298
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-02-16T14:16:12+04:00",
          "utc": "2015-02-16T10:16:12Z",
          "ms": 1424081772202.968
        },
        "end": {
          "local": "2015-02-17T11:06:27+04:00",
          "utc": "2015-02-17T07:06:27Z",
          "ms": 1424156786767.3298
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-02-16",
          "window": {
            "start": {
              "local": "2015-02-16T18:17:13+04:00",
              "utc": "2015-02-16T14:17:13Z",
              "ms": 1424096232774.0168
            },
            "end": {
              "local": "2015-02-16T19:58:18+04:00",
              "utc": "2015-02-16T15:58:18Z",
              "ms": 1424102297787.4092
            }
          },
          "covered_min": 101,
          "window_min": 101,
          "qualifies": true
        },
        {
          "local_date": "2015-02-17",
          "window": {
            "start": {
              "local": "2015-02-17T18:17:49+04:00",
              "utc": "2015-02-17T14:17:49Z",
              "ms": 1424182668584.4812
            },
            "end": {
              "local": "2015-02-17T19:58:43+04:00",
              "utc": "2015-02-17T15:58:43Z",
              "ms": 1424188722952.73
            }
          },
          "covered_min": 0,
          "window_min": 101,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 14:16 on Mon 16 Feb to 11:06 on Tue 17 Feb.",
          "fact": "2015-02-16T10:16:12Z → 2015-02-17T07:06:27Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:17–19:58 on the 16th, 18:18–19:59 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 101 of 101 minutes on the 16th and 0 of 101 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 14461 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Monday 16 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": "2015-02-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-02-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Monday 16 February. Trayodaśī runs from 14:16 on Mon 16 Feb to 11:06 on Tue 17 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-02-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/maha-shivaratri",
      "festival": "maha-shivaratri",
      "name": "Mahāśivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-02-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23578,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-02-17T11:06:27+04:00",
          "utc": "2015-02-17T07:06:27Z",
          "ms": 1424156786767.3298
        },
        "end": {
          "local": "2015-02-18T07:33:11+04:00",
          "utc": "2015-02-18T03:33:11Z",
          "ms": 1424230390537.5994
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-02-17T11:06:27+04:00",
          "utc": "2015-02-17T07:06:27Z",
          "ms": 1424156786767.3298
        },
        "end": {
          "local": "2015-02-18T07:33:11+04:00",
          "utc": "2015-02-18T03:33:11Z",
          "ms": 1424230390537.5994
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-02-16",
          "window": {
            "start": {
              "local": "2015-02-17T00:12:17+04:00",
              "utc": "2015-02-16T20:12:17Z",
              "ms": 1424117536574.2383
            },
            "end": {
              "local": "2015-02-17T01:00:17+04:00",
              "utc": "2015-02-16T21:00:17Z",
              "ms": 1424120416574.2383
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-02-17",
          "window": {
            "start": {
              "local": "2015-02-18T00:12:12+04:00",
              "utc": "2015-02-17T20:12:12Z",
              "ms": 1424203932465.4146
            },
            "end": {
              "local": "2015-02-18T01:00:12+04:00",
              "utc": "2015-02-17T21:00:12Z",
              "ms": 1424206812465.4146
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 11:06 on Tue 17 Feb to 07:33 on Wed 18 Feb.",
          "fact": "2015-02-17T07:06:27Z → 2015-02-18T03:33:11Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:12–01:00 on the 16th, 00:12–01:00 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: disputed → only-day · margin 23578 s"
        },
        {
          "step": "ruling",
          "text": "Mahāśivarātri, Abu Dhabi, 2015: Tuesday 17 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": "2015-02-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-02-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Mahāśivarātri 2015 falls on Tuesday 17 February. Caturdaśī runs from 11:06 on Tue 17 Feb to 07:33 on Wed 18 Feb and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-02-22",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-02-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4192,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-02-21T17:01:40+04:00",
          "utc": "2015-02-21T13:01:40Z",
          "ms": 1424523700224.9946
        },
        "end": {
          "local": "2015-02-22T14:09:59+04:00",
          "utc": "2015-02-22T10:09:59Z",
          "ms": 1424599798523.6353
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-02-21T17:01:40+04:00",
          "utc": "2015-02-21T13:01:40Z",
          "ms": 1424523700224.9946
        },
        "end": {
          "local": "2015-02-22T14:09:59+04:00",
          "utc": "2015-02-22T10:09:59Z",
          "ms": 1424599798523.6353
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-02-21",
          "window": {
            "start": {
              "local": "2015-02-21T12:12:13+04:00",
              "utc": "2015-02-21T08:12:13Z",
              "ms": 1424506333089.6328
            },
            "end": {
              "local": "2015-02-21T13:00:13+04:00",
              "utc": "2015-02-21T09:00:13Z",
              "ms": 1424509213089.6328
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-02-22",
          "window": {
            "start": {
              "local": "2015-02-22T12:12:06+04:00",
              "utc": "2015-02-22T08:12:06Z",
              "ms": 1424592726070.7627
            },
            "end": {
              "local": "2015-02-22T13:00:06+04:00",
              "utc": "2015-02-22T09:00:06Z",
              "ms": 1424595606070.7627
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:02 on Sat 21 Feb to 14:10 on Sun 22 Feb.",
          "fact": "2015-02-21T13:01:40Z → 2015-02-22T10:09:59Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 21st, 12:12–13:00 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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 4192 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Sunday 22 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": "2015-02-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-02-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Sunday 22 February. Caturthī runs from 17:02 on Sat 21 Feb to 14:10 on Sun 22 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-02-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-03-01",
      "festival": "ekadashi",
      "name": "Āmalakī Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14854,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-02-28T10:54:02+04:00",
          "utc": "2015-02-28T06:54:02Z",
          "ms": 1425106442003.5054
        },
        "end": {
          "local": "2015-03-01T12:32:44+04:00",
          "utc": "2015-03-01T08:32:44Z",
          "ms": 1425198764090.7761
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-02-28T10:54:02+04:00",
          "utc": "2015-02-28T06:54:02Z",
          "ms": 1425106442003.5054
        },
        "end": {
          "local": "2015-03-01T12:32:44+04:00",
          "utc": "2015-03-01T08:32:44Z",
          "ms": 1425198764090.7761
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-02-28",
          "window": {
            "start": {
              "local": "2015-02-28T06:46:28+04:00",
              "utc": "2015-02-28T02:46:28Z",
              "ms": 1425091588355.59
            },
            "end": {
              "local": "2015-02-28T06:46:28+04:00",
              "utc": "2015-02-28T02:46:28Z",
              "ms": 1425091588355.59
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-03-01",
          "window": {
            "start": {
              "local": "2015-03-01T06:45:35+04:00",
              "utc": "2015-03-01T02:45:35Z",
              "ms": 1425177935324.6797
            },
            "end": {
              "local": "2015-03-01T06:45:35+04:00",
              "utc": "2015-03-01T02:45:35Z",
              "ms": 1425177935324.6797
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 10:54 on Sat 28 Feb to 12:33 on Sun 1 Mar.",
          "fact": "2015-02-28T06:54:02Z → 2015-03-01T08:32:44Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:46 on the 28th and 06:46 on the 1st.",
          "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 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 14854 s"
        },
        {
          "step": "ruling",
          "text": "Āmalakī Ekādaśī, Abu Dhabi, 2015: Sunday 1 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": "2015-03-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Āmalakī Ekādaśī 2015 falls on Sunday 1 March. Ekādaśī runs from 10:54 on Sat 28 Feb to 12:33 on Sun 1 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-03-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-03-02",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5364,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-03-02T14:35:34+04:00",
          "utc": "2015-03-02T10:35:34Z",
          "ms": 1425292533771.8057
        },
        "end": {
          "local": "2015-03-03T16:56:00+04:00",
          "utc": "2015-03-03T12:56:00Z",
          "ms": 1425387360167.5645
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-02T14:35:34+04:00",
          "utc": "2015-03-02T10:35:34Z",
          "ms": 1425292533771.8057
        },
        "end": {
          "local": "2015-03-03T16:56:00+04:00",
          "utc": "2015-03-03T12:56:00Z",
          "ms": 1425387360167.5645
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-03-02",
          "window": {
            "start": {
              "local": "2015-03-02T18:24:54+04:00",
              "utc": "2015-03-02T14:24:54Z",
              "ms": 1425306294261.875
            },
            "end": {
              "local": "2015-03-02T20:03:25+04:00",
              "utc": "2015-03-02T16:03:25Z",
              "ms": 1425312205335.4346
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "2015-03-03",
          "window": {
            "start": {
              "local": "2015-03-03T18:25:24+04:00",
              "utc": "2015-03-03T14:25:24Z",
              "ms": 1425392724098.1216
            },
            "end": {
              "local": "2015-03-03T20:03:44+04:00",
              "utc": "2015-03-03T16:03:44Z",
              "ms": 1425398623870.6
            }
          },
          "covered_min": 0,
          "window_min": 98,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 14:36 on Mon 2 Mar to 16:56 on Tue 3 Mar.",
          "fact": "2015-03-02T10:35:34Z → 2015-03-03T12:56:00Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:25–20:03 on the 2nd, 18:25–20:04 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 99 of 99 minutes on the 2nd and 0 of 98 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 5364 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Monday 2 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": "2015-03-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Monday 2 March. Trayodaśī runs from 14:36 on Mon 2 Mar to 16:56 on Tue 3 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-03-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/holika-dahana",
      "festival": "holika-dahana",
      "name": "Holikā Dahana",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3720,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-03-04T19:27:54+04:00",
          "utc": "2015-03-04T15:27:54Z",
          "ms": 1425482873778.05
        },
        "end": {
          "local": "2015-03-05T22:05:24+04:00",
          "utc": "2015-03-05T18:05:24Z",
          "ms": 1425578724247.3608
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-04T19:27:54+04:00",
          "utc": "2015-03-04T15:27:54Z",
          "ms": 1425482873778.05
        },
        "end": {
          "local": "2015-03-05T22:05:24+04:00",
          "utc": "2015-03-05T18:05:24Z",
          "ms": 1425578724247.3608
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2015-03-04",
          "window": {
            "start": {
              "local": "2015-03-04T16:05:17+04:00",
              "utc": "2015-03-04T12:05:17Z",
              "ms": 1425470717334.0503
            },
            "end": {
              "local": "2015-03-04T18:25:54+04:00",
              "utc": "2015-03-04T14:25:54Z",
              "ms": 1425479153569.6353
            }
          },
          "covered_min": 0,
          "window_min": 141,
          "qualifies": false
        },
        {
          "local_date": "2015-03-05",
          "window": {
            "start": {
              "local": "2015-03-05T16:05:30+04:00",
              "utc": "2015-03-05T12:05:30Z",
              "ms": 1425557129532.023
            },
            "end": {
              "local": "2015-03-05T18:26:23+04:00",
              "utc": "2015-03-05T14:26:23Z",
              "ms": 1425565582690.4421
            }
          },
          "covered_min": 141,
          "window_min": 141,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 19:28 on Wed 4 Mar to 22:05 on Thu 5 Mar.",
          "fact": "2015-03-04T15:27:54Z → 2015-03-05T18:05:24Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:05–18:26 on the 4th, 16:05–18:26 on the 5th.",
          "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 141 minutes on the 4th and 141 of 141 on the 5th.",
          "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 3720 s"
        },
        {
          "step": "ruling",
          "text": "Holikā Dahana, Abu Dhabi, 2015: Thursday 5 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": "2015-03-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Holikā Dahana 2015 falls on Thursday 5 March. Pūrṇimā runs from 19:28 on Wed 4 Mar to 22:05 on Thu 5 Mar and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/holi",
      "festival": "holi",
      "name": "Holī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3720,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-03-04T19:27:54+04:00",
          "utc": "2015-03-04T15:27:54Z",
          "ms": 1425482873778.05
        },
        "end": {
          "local": "2015-03-05T22:05:24+04:00",
          "utc": "2015-03-05T18:05:24Z",
          "ms": 1425578724247.3608
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-04T19:27:54+04:00",
          "utc": "2015-03-04T15:27:54Z",
          "ms": 1425482873778.05
        },
        "end": {
          "local": "2015-03-05T22:05:24+04:00",
          "utc": "2015-03-05T18:05:24Z",
          "ms": 1425578724247.3608
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2015-03-04",
          "window": {
            "start": {
              "local": "2015-03-04T16:05:17+04:00",
              "utc": "2015-03-04T12:05:17Z",
              "ms": 1425470717334.0503
            },
            "end": {
              "local": "2015-03-04T18:25:54+04:00",
              "utc": "2015-03-04T14:25:54Z",
              "ms": 1425479153569.6353
            }
          },
          "covered_min": 0,
          "window_min": 141,
          "qualifies": false
        },
        {
          "local_date": "2015-03-05",
          "window": {
            "start": {
              "local": "2015-03-05T16:05:30+04:00",
              "utc": "2015-03-05T12:05:30Z",
              "ms": 1425557129532.023
            },
            "end": {
              "local": "2015-03-05T18:26:23+04:00",
              "utc": "2015-03-05T14:26:23Z",
              "ms": 1425565582690.4421
            }
          },
          "covered_min": 141,
          "window_min": 141,
          "qualifies": true
        }
      ],
      "follows": {
        "festival": "holika-dahana",
        "name": "Holikā Dahana",
        "local_date": "2015-03-05",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 19:28 on Wed 4 Mar to 22:05 on Thu 5 Mar.",
          "fact": "2015-03-04T15:27:54Z → 2015-03-05T18:05:24Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:05–18:26 on the 4th, 16:05–18:26 on the 5th.",
          "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 141 minutes on the 4th and 141 of 141 on the 5th.",
          "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 3720 s"
        },
        {
          "step": "counted",
          "text": "Holī is kept the day after Holikā Dahana: Thursday 5 March is the day taken above.",
          "fact": "follows: holika-dahana + 1 d"
        },
        {
          "step": "ruling",
          "text": "Holī, Abu Dhabi, 2015: Friday 6 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": "2015-03-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Holī 2015 falls on Friday 6 March. It is kept the day after Holikā Dahana, which falls on Thursday 5 March. Pūrṇimā runs from 19:28 on Wed 4 Mar to 22:05 on Thu 5 Mar and covers all of sāyāhna on the 5th.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vasantotsava",
      "festival": "vasantotsava",
      "name": "Vasantotsava",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21443,
      "anga": {
        "type": "tithi",
        "index": 15,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2015-03-05T22:05:24+04:00",
          "utc": "2015-03-05T18:05:24Z",
          "ms": 1425578724247.3608
        },
        "end": {
          "local": "2015-03-07T00:42:41+04:00",
          "utc": "2015-03-06T20:42:41Z",
          "ms": 1425674561474.985
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-05T22:05:24+04:00",
          "utc": "2015-03-05T18:05:24Z",
          "ms": 1425578724247.3608
        },
        "end": {
          "local": "2015-03-07T00:42:41+04:00",
          "utc": "2015-03-06T20:42:41Z",
          "ms": 1425674561474.985
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-03-06",
          "window": {
            "start": {
              "local": "2015-03-06T06:41:01+04:00",
              "utc": "2015-03-06T02:41:01Z",
              "ms": 1425609660863.1797
            },
            "end": {
              "local": "2015-03-06T06:41:01+04:00",
              "utc": "2015-03-06T02:41:01Z",
              "ms": 1425609660863.1797
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-03-07",
          "window": {
            "start": {
              "local": "2015-03-07T06:40:04+04:00",
              "utc": "2015-03-07T02:40:04Z",
              "ms": 1425696004316.484
            },
            "end": {
              "local": "2015-03-07T06:40:04+04:00",
              "utc": "2015-03-07T02:40:04Z",
              "ms": 1425696004316.484
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 22:05 on Thu 5 Mar to 00:43 on Sat 7 Mar.",
          "fact": "2015-03-05T18:05:24Z → 2015-03-06T20:42:41Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:41 on the 6th and 06:40 on the 7th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be current at sunrise. It is on the 6th and is not on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 21443 s"
        },
        {
          "step": "ruling",
          "text": "Vasantotsava, Abu Dhabi, 2015: Friday 6 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vasantotsava",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)."
          }
        ],
        "kaala": "sunrise",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-03-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vasantotsava 2015 falls on Friday 6 March. Pratipadā runs from 22:05 on Thu 5 Mar to 00:43 on Sat 7 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-03-09",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31444,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-03-09T05:30:59+04:00",
          "utc": "2015-03-09T01:30:59Z",
          "ms": 1425864659083.9158
        },
        "end": {
          "local": "2015-03-10T07:27:33+04:00",
          "utc": "2015-03-10T03:27:33Z",
          "ms": 1425958052578.8125
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-09T05:30:59+04:00",
          "utc": "2015-03-09T01:30:59Z",
          "ms": 1425864659083.9158
        },
        "end": {
          "local": "2015-03-10T07:27:33+04:00",
          "utc": "2015-03-10T03:27:33Z",
          "ms": 1425958052578.8125
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-03-08",
          "window": {
            "start": {
              "local": "2015-03-08T20:46:55+04:00",
              "utc": "2015-03-08T16:46:55Z",
              "ms": 1425833215247.4697
            },
            "end": {
              "local": "2015-03-08T20:46:55+04:00",
              "utc": "2015-03-08T16:46:55Z",
              "ms": 1425833215247.4697
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-03-09",
          "window": {
            "start": {
              "local": "2015-03-09T21:38:01+04:00",
              "utc": "2015-03-09T17:38:01Z",
              "ms": 1425922680778.3604
            },
            "end": {
              "local": "2015-03-09T21:38:01+04:00",
              "utc": "2015-03-09T17:38:01Z",
              "ms": 1425922680778.3604
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 05:31 on Mon 9 Mar to 07:28 on Tue 10 Mar.",
          "fact": "2015-03-09T01:30:59Z → 2015-03-10T03:27:33Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:47 on the 8th and 21:38 on the 9th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 8th and is on the 9th.",
          "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 31444 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Monday 9 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": "2015-03-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Monday 9 March. Caturthī runs from 05:31 on Mon 9 Mar to 07:28 on Tue 10 Mar and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-03-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shitalashtami",
      "festival": "shitalashtami",
      "name": "Śītalāṣṭamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7758,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-03-13T09:58:53+04:00",
          "utc": "2015-03-13T05:58:53Z",
          "ms": 1426226332693.654
        },
        "end": {
          "local": "2015-03-14T09:25:44+04:00",
          "utc": "2015-03-14T05:25:44Z",
          "ms": 1426310744082.3574
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-13T09:58:53+04:00",
          "utc": "2015-03-13T05:58:53Z",
          "ms": 1426226332693.654
        },
        "end": {
          "local": "2015-03-14T09:25:44+04:00",
          "utc": "2015-03-14T05:25:44Z",
          "ms": 1426310744082.3574
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-03-13",
          "window": {
            "start": {
              "local": "2015-03-13T12:08:10+04:00",
              "utc": "2015-03-13T08:08:10Z",
              "ms": 1426234090391.0718
            },
            "end": {
              "local": "2015-03-13T12:56:10+04:00",
              "utc": "2015-03-13T08:56:10Z",
              "ms": 1426236970391.0718
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-03-14",
          "window": {
            "start": {
              "local": "2015-03-14T12:07:54+04:00",
              "utc": "2015-03-14T08:07:54Z",
              "ms": 1426320474061.8604
            },
            "end": {
              "local": "2015-03-14T12:55:54+04:00",
              "utc": "2015-03-14T08:55:54Z",
              "ms": 1426323354061.8604
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 09:59 on Fri 13 Mar to 09:26 on Sat 14 Mar.",
          "fact": "2015-03-13T05:58:53Z → 2015-03-14T05:25:44Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 13th, 12:08–12:56 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 48 of 48 minutes on the 13th and 0 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 7758 s"
        },
        {
          "step": "ruling",
          "text": "Śītalāṣṭamī, Abu Dhabi, 2015: Friday 13 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": "2015-03-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śītalāṣṭamī 2015 falls on Friday 13 March. Aṣṭamī runs from 09:59 on Fri 13 Mar to 09:26 on Sat 14 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-03-16",
      "festival": "ekadashi",
      "name": "Pāpamocanī Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1372,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-03-16T06:08:25+04:00",
          "utc": "2015-03-16T02:08:25Z",
          "ms": 1426471705314.508
        },
        "end": {
          "local": "2015-03-17T03:31:53+04:00",
          "utc": "2015-03-16T23:31:53Z",
          "ms": 1426548713477.5005
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-16T06:08:25+04:00",
          "utc": "2015-03-16T02:08:25Z",
          "ms": 1426471705314.508
        },
        "end": {
          "local": "2015-03-17T03:31:53+04:00",
          "utc": "2015-03-16T23:31:53Z",
          "ms": 1426548713477.5005
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-03-16",
          "window": {
            "start": {
              "local": "2015-03-16T06:31:17+04:00",
              "utc": "2015-03-16T02:31:17Z",
              "ms": 1426473077220.4194
            },
            "end": {
              "local": "2015-03-16T06:31:17+04:00",
              "utc": "2015-03-16T02:31:17Z",
              "ms": 1426473077220.4194
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-03-17",
          "window": {
            "start": {
              "local": "2015-03-17T06:30:17+04:00",
              "utc": "2015-03-17T02:30:17Z",
              "ms": 1426559417160.692
            },
            "end": {
              "local": "2015-03-17T06:30:17+04:00",
              "utc": "2015-03-17T02:30:17Z",
              "ms": 1426559417160.692
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:08 on Mon 16 Mar to 03:32 on Tue 17 Mar.",
          "fact": "2015-03-16T02:08:25Z → 2015-03-16T23:31:53Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:31 on the 16th and 06:30 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 1372 s"
        },
        {
          "step": "ruling",
          "text": "Pāpamocanī Ekādaśī, Abu Dhabi, 2015: Monday 16 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": "2015-03-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Pāpamocanī Ekādaśī 2015 falls on Monday 16 March. Ekādaśī runs from 06:08 on Mon 16 Mar to 03:32 on Tue 17 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-03-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-03-18",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3003,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-03-18T00:25:31+04:00",
          "utc": "2015-03-17T20:25:31Z",
          "ms": 1426623931305.1252
        },
        "end": {
          "local": "2015-03-18T20:57:47+04:00",
          "utc": "2015-03-18T16:57:47Z",
          "ms": 1426697866961.2903
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-18T00:25:31+04:00",
          "utc": "2015-03-17T20:25:31Z",
          "ms": 1426623931305.1252
        },
        "end": {
          "local": "2015-03-18T20:57:47+04:00",
          "utc": "2015-03-18T16:57:47Z",
          "ms": 1426697866961.2903
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-03-17",
          "window": {
            "start": {
              "local": "2015-03-17T18:31:50+04:00",
              "utc": "2015-03-17T14:31:50Z",
              "ms": 1426602710265.0537
            },
            "end": {
              "local": "2015-03-17T20:07:30+04:00",
              "utc": "2015-03-17T16:07:30Z",
              "ms": 1426608449816.4944
            }
          },
          "covered_min": 0,
          "window_min": 96,
          "qualifies": false
        },
        {
          "local_date": "2015-03-18",
          "window": {
            "start": {
              "local": "2015-03-18T18:32:16+04:00",
              "utc": "2015-03-18T14:32:16Z",
              "ms": 1426689136176.5642
            },
            "end": {
              "local": "2015-03-18T20:07:44+04:00",
              "utc": "2015-03-18T16:07:44Z",
              "ms": 1426694864214.9995
            }
          },
          "covered_min": 95,
          "window_min": 95,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 00:26 on Wed 18 Mar to 20:58 on Wed 18 Mar.",
          "fact": "2015-03-17T20:25:31Z → 2015-03-18T16:57:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:32–20:07 on the 17th, 18:32–20:08 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 96 minutes on the 17th and 95 of 95 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 3003 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Wednesday 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": "2015-03-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-18",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Wednesday 18 March. Trayodaśī runs from 00:26 on Wed 18 Mar to 20:58 on Wed 18 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-03-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-03-18",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11309,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-03-18T20:57:47+04:00",
          "utc": "2015-03-18T16:57:47Z",
          "ms": 1426697866961.2903
        },
        "end": {
          "local": "2015-03-19T17:18:03+04:00",
          "utc": "2015-03-19T13:18:03Z",
          "ms": 1426771083024.1482
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-18T20:57:47+04:00",
          "utc": "2015-03-18T16:57:47Z",
          "ms": 1426697866961.2903
        },
        "end": {
          "local": "2015-03-19T17:18:03+04:00",
          "utc": "2015-03-19T13:18:03Z",
          "ms": 1426771083024.1482
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-03-18",
          "window": {
            "start": {
              "local": "2015-03-19T00:06:16+04:00",
              "utc": "2015-03-18T20:06:16Z",
              "ms": 1426709176320.6968
            },
            "end": {
              "local": "2015-03-19T00:54:16+04:00",
              "utc": "2015-03-18T20:54:16Z",
              "ms": 1426712056320.6968
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-03-19",
          "window": {
            "start": {
              "local": "2015-03-20T00:05:59+04:00",
              "utc": "2015-03-19T20:05:59Z",
              "ms": 1426795558902.7349
            },
            "end": {
              "local": "2015-03-20T00:53:59+04:00",
              "utc": "2015-03-19T20:53:59Z",
              "ms": 1426798438902.7349
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 20:58 on Wed 18 Mar to 17:18 on Thu 19 Mar.",
          "fact": "2015-03-18T16:57:47Z → 2015-03-19T13:18:03Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:06–00:54 on the 18th, 00:06–00:54 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 11309 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Wednesday 18 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": "2015-03-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Wednesday 18 March. Caturdaśī runs from 20:58 on Wed 18 Mar to 17:18 on Thu 19 Mar and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-03-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/navaratra-arambha-caitra",
      "festival": "navaratra-arambha-caitra",
      "name": "Navarātrārambha (Caitra)",
      "everyday": "Chaitra Navratri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2519,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2015-03-20T13:36:11+04:00",
          "utc": "2015-03-20T09:36:11Z",
          "ms": 1426844171167.5781
        },
        "end": {
          "local": "2015-03-21T10:02:11+04:00",
          "utc": "2015-03-21T06:02:11Z",
          "ms": 1426917731036.7312
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-20T13:36:11+04:00",
          "utc": "2015-03-20T09:36:11Z",
          "ms": 1426844171167.5781
        },
        "end": {
          "local": "2015-03-21T10:02:11+04:00",
          "utc": "2015-03-21T06:02:11Z",
          "ms": 1426917731036.7312
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-03-20",
          "window": {
            "start": {
              "local": "2015-03-20T12:06:12+04:00",
              "utc": "2015-03-20T08:06:12Z",
              "ms": 1426838771704.6665
            },
            "end": {
              "local": "2015-03-20T12:54:12+04:00",
              "utc": "2015-03-20T08:54:12Z",
              "ms": 1426841651704.6665
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-03-21",
          "window": {
            "start": {
              "local": "2015-03-21T12:05:54+04:00",
              "utc": "2015-03-21T08:05:54Z",
              "ms": 1426925154075.4712
            },
            "end": {
              "local": "2015-03-21T12:53:54+04:00",
              "utc": "2015-03-21T08:53:54Z",
              "ms": 1426928034075.4712
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 13:36 on Fri 20 Mar to 10:02 on Sat 21 Mar.",
          "fact": "2015-03-20T09:36:11Z → 2015-03-21T06:02:11Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 20th, 12:06–12:54 on the 21st.",
          "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 20th and 0 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: paraviddha → second-day · margin 2519 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha (Caitra), Abu Dhabi, 2015: Saturday 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": "2015-03-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Navarātrārambha (Caitra) (Chaitra Navratri) 2015 falls on Saturday 21 March. Pratipadā runs from 13:36 on Fri 20 Mar to 10:02 on Sat 21 Mar, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/gauri-tritiya",
      "festival": "gauri-tritiya",
      "name": "Gaurī Tṛtīyā",
      "everyday": "Gangaur",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19186,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2015-03-22T06:45:51+04:00",
          "utc": "2015-03-22T02:45:51Z",
          "ms": 1426992350507.3252
        },
        "end": {
          "local": "2015-03-23T03:56:24+04:00",
          "utc": "2015-03-22T23:56:24Z",
          "ms": 1427068583833.7993
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-22T06:45:51+04:00",
          "utc": "2015-03-22T02:45:51Z",
          "ms": 1426992350507.3252
        },
        "end": {
          "local": "2015-03-23T03:56:24+04:00",
          "utc": "2015-03-22T23:56:24Z",
          "ms": 1427068583833.7993
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-03-22",
          "window": {
            "start": {
              "local": "2015-03-22T12:05:36+04:00",
              "utc": "2015-03-22T08:05:36Z",
              "ms": 1427011536324.9856
            },
            "end": {
              "local": "2015-03-22T12:53:36+04:00",
              "utc": "2015-03-22T08:53:36Z",
              "ms": 1427014416324.9856
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-03-23",
          "window": {
            "start": {
              "local": "2015-03-23T12:05:18+04:00",
              "utc": "2015-03-23T08:05:18Z",
              "ms": 1427097918468.8784
            },
            "end": {
              "local": "2015-03-23T12:53:18+04:00",
              "utc": "2015-03-23T08:53:18Z",
              "ms": 1427100798468.8784
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 06:46 on Sun 22 Mar to 03:56 on Mon 23 Mar.",
          "fact": "2015-03-22T02:45:51Z → 2015-03-22T23:56:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 22nd, 12:05–12:53 on the 23rd.",
          "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 22nd and 0 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: unstated → only-day · margin 19186 s"
        },
        {
          "step": "ruling",
          "text": "Gaurī Tṛtīyā, Abu Dhabi, 2015: Sunday 22 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": "2015-03-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Gaurī Tṛtīyā (Gangaur) 2015 falls on Sunday 22 March. Tṛtīyā runs from 06:46 on Sun 22 Mar to 03:56 on Mon 23 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/saubhagya-shayana-vrata",
      "festival": "saubhagya-shayana-vrata",
      "name": "Saubhāgya Śayana Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19186,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2015-03-22T06:45:51+04:00",
          "utc": "2015-03-22T02:45:51Z",
          "ms": 1426992350507.3252
        },
        "end": {
          "local": "2015-03-23T03:56:24+04:00",
          "utc": "2015-03-22T23:56:24Z",
          "ms": 1427068583833.7993
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-22T06:45:51+04:00",
          "utc": "2015-03-22T02:45:51Z",
          "ms": 1426992350507.3252
        },
        "end": {
          "local": "2015-03-23T03:56:24+04:00",
          "utc": "2015-03-22T23:56:24Z",
          "ms": 1427068583833.7993
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-03-22",
          "window": {
            "start": {
              "local": "2015-03-22T12:05:36+04:00",
              "utc": "2015-03-22T08:05:36Z",
              "ms": 1427011536324.9856
            },
            "end": {
              "local": "2015-03-22T12:53:36+04:00",
              "utc": "2015-03-22T08:53:36Z",
              "ms": 1427014416324.9856
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-03-23",
          "window": {
            "start": {
              "local": "2015-03-23T12:05:18+04:00",
              "utc": "2015-03-23T08:05:18Z",
              "ms": 1427097918468.8784
            },
            "end": {
              "local": "2015-03-23T12:53:18+04:00",
              "utc": "2015-03-23T08:53:18Z",
              "ms": 1427100798468.8784
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 06:46 on Sun 22 Mar to 03:56 on Mon 23 Mar.",
          "fact": "2015-03-22T02:45:51Z → 2015-03-22T23:56:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 22nd, 12:05–12:53 on the 23rd.",
          "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 22nd and 0 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 19186 s"
        },
        {
          "step": "ruling",
          "text": "Saubhāgya Śayana Vrata, Abu Dhabi, 2015: Sunday 22 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": "2015-03-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saubhāgya Śayana Vrata 2015 falls on Sunday 22 March. Tṛtīyā runs from 06:46 on Sun 22 Mar to 03:56 on Mon 23 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-03-23",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29335,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-03-23T03:56:24+04:00",
          "utc": "2015-03-22T23:56:24Z",
          "ms": 1427068583833.7993
        },
        "end": {
          "local": "2015-03-24T01:42:05+04:00",
          "utc": "2015-03-23T21:42:05Z",
          "ms": 1427146924522.7866
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-23T03:56:24+04:00",
          "utc": "2015-03-22T23:56:24Z",
          "ms": 1427068583833.7993
        },
        "end": {
          "local": "2015-03-24T01:42:05+04:00",
          "utc": "2015-03-23T21:42:05Z",
          "ms": 1427146924522.7866
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-03-23",
          "window": {
            "start": {
              "local": "2015-03-23T12:05:18+04:00",
              "utc": "2015-03-23T08:05:18Z",
              "ms": 1427097918468.8784
            },
            "end": {
              "local": "2015-03-23T12:53:18+04:00",
              "utc": "2015-03-23T08:53:18Z",
              "ms": 1427100798468.8784
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-03-24",
          "window": {
            "start": {
              "local": "2015-03-24T12:05:01+04:00",
              "utc": "2015-03-24T08:05:01Z",
              "ms": 1427184300523.7168
            },
            "end": {
              "local": "2015-03-24T12:53:01+04:00",
              "utc": "2015-03-24T08:53:01Z",
              "ms": 1427187180523.7168
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:56 on Mon 23 Mar to 01:42 on Tue 24 Mar.",
          "fact": "2015-03-22T23:56:24Z → 2015-03-23T21:42:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 23rd, 12:05–12:53 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 29335 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Monday 23 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": "2015-03-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Monday 23 March. Caturthī runs from 03:56 on Mon 23 Mar to 01:42 on Tue 24 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-03-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/lakshmi-panchami",
      "festival": "lakshmi-panchami",
      "name": "Lakṣmī Pañcamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37376,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2015-03-24T01:42:05+04:00",
          "utc": "2015-03-23T21:42:05Z",
          "ms": 1427146924522.7866
        },
        "end": {
          "local": "2015-03-25T00:09:31+04:00",
          "utc": "2015-03-24T20:09:31Z",
          "ms": 1427227771323.4487
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-24T01:42:05+04:00",
          "utc": "2015-03-23T21:42:05Z",
          "ms": 1427146924522.7866
        },
        "end": {
          "local": "2015-03-25T00:09:31+04:00",
          "utc": "2015-03-24T20:09:31Z",
          "ms": 1427227771323.4487
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-03-24",
          "window": {
            "start": {
              "local": "2015-03-24T12:05:01+04:00",
              "utc": "2015-03-24T08:05:01Z",
              "ms": 1427184300523.7168
            },
            "end": {
              "local": "2015-03-24T12:53:01+04:00",
              "utc": "2015-03-24T08:53:01Z",
              "ms": 1427187180523.7168
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-03-25",
          "window": {
            "start": {
              "local": "2015-03-25T12:04:43+04:00",
              "utc": "2015-03-25T08:04:43Z",
              "ms": 1427270682507.1162
            },
            "end": {
              "local": "2015-03-25T12:52:43+04:00",
              "utc": "2015-03-25T08:52:43Z",
              "ms": 1427273562507.1162
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 01:42 on Tue 24 Mar to 00:10 on Wed 25 Mar.",
          "fact": "2015-03-23T21:42:05Z → 2015-03-24T20:09:31Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 24th, 12:05–12:53 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: purvaviddha → only-day · margin 37376 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pañcamī, Abu Dhabi, 2015: Tuesday 24 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": "2015-03-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Lakṣmī Pañcamī 2015 falls on Tuesday 24 March. Pañcamī runs from 01:42 on Tue 24 Mar to 00:10 on Wed 25 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/bhavani-utpatti",
      "festival": "bhavani-utpatti",
      "name": "Bhavānī Utpatti",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37924,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-03-26T23:24:29+04:00",
          "utc": "2015-03-26T19:24:29Z",
          "ms": 1427397868845.1548
        },
        "end": {
          "local": "2015-03-28T00:11:43+04:00",
          "utc": "2015-03-27T20:11:43Z",
          "ms": 1427487103139.0623
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-26T23:24:29+04:00",
          "utc": "2015-03-26T19:24:29Z",
          "ms": 1427397868845.1548
        },
        "end": {
          "local": "2015-03-28T00:11:43+04:00",
          "utc": "2015-03-27T20:11:43Z",
          "ms": 1427487103139.0623
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-03-26",
          "window": {
            "start": {
              "local": "2015-03-26T12:04:24+04:00",
              "utc": "2015-03-26T08:04:24Z",
              "ms": 1427357064437.7031
            },
            "end": {
              "local": "2015-03-26T12:52:24+04:00",
              "utc": "2015-03-26T08:52:24Z",
              "ms": 1427359944437.7031
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-03-27",
          "window": {
            "start": {
              "local": "2015-03-27T12:04:06+04:00",
              "utc": "2015-03-27T08:04:06Z",
              "ms": 1427443446334.9668
            },
            "end": {
              "local": "2015-03-27T12:52:06+04:00",
              "utc": "2015-03-27T08:52:06Z",
              "ms": 1427446326334.9668
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 23:24 on Thu 26 Mar to 00:12 on Sat 28 Mar.",
          "fact": "2015-03-26T19:24:29Z → 2015-03-27T20:11:43Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 26th, 12:04–12:52 on the 27th.",
          "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 26th and 48 of 48 on the 27th.",
          "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 37924 s"
        },
        {
          "step": "ruling",
          "text": "Bhavānī Utpatti, Abu Dhabi, 2015: Friday 27 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": "2015-03-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Bhavānī Utpatti 2015 falls on Friday 27 March. Aṣṭamī runs from 23:24 on Thu 26 Mar to 00:12 on Sat 28 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/rama-navami",
      "festival": "rama-navami",
      "name": "Rāma Navamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37429,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2015-03-28T00:11:43+04:00",
          "utc": "2015-03-27T20:11:43Z",
          "ms": 1427487103139.0623
        },
        "end": {
          "local": "2015-03-29T01:39:41+04:00",
          "utc": "2015-03-28T21:39:41Z",
          "ms": 1427578780628.136
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-28T00:11:43+04:00",
          "utc": "2015-03-27T20:11:43Z",
          "ms": 1427487103139.0623
        },
        "end": {
          "local": "2015-03-29T01:39:41+04:00",
          "utc": "2015-03-28T21:39:41Z",
          "ms": 1427578780628.136
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-03-28",
          "window": {
            "start": {
              "local": "2015-03-28T12:03:48+04:00",
              "utc": "2015-03-28T08:03:48Z",
              "ms": 1427529828219.0732
            },
            "end": {
              "local": "2015-03-28T12:51:48+04:00",
              "utc": "2015-03-28T08:51:48Z",
              "ms": 1427532708219.0732
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-03-29",
          "window": {
            "start": {
              "local": "2015-03-29T12:03:30+04:00",
              "utc": "2015-03-29T08:03:30Z",
              "ms": 1427616210110.6978
            },
            "end": {
              "local": "2015-03-29T12:51:30+04:00",
              "utc": "2015-03-29T08:51:30Z",
              "ms": 1427619090110.6978
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 00:12 on Sat 28 Mar to 01:40 on Sun 29 Mar.",
          "fact": "2015-03-27T20:11:43Z → 2015-03-28T21:39:41Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 28th, 12:04–12:52 on the 29th.",
          "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 28th and 0 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: unstated → only-day · margin 37429 s"
        },
        {
          "step": "ruling",
          "text": "Rāma Navamī, Abu Dhabi, 2015: Saturday 28 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": "2015-03-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Rāma Navamī 2015 falls on Saturday 28 March. Navamī runs from 00:12 on Sat 28 Mar to 01:40 on Sun 29 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-03-30",
      "festival": "ekadashi",
      "name": "Kāmadā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-03-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 750,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-03-30T03:40:17+04:00",
          "utc": "2015-03-29T23:40:17Z",
          "ms": 1427672417177.9631
        },
        "end": {
          "local": "2015-03-31T06:03:36+04:00",
          "utc": "2015-03-31T02:03:36Z",
          "ms": 1427767415950.449
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-03-30T03:40:17+04:00",
          "utc": "2015-03-29T23:40:17Z",
          "ms": 1427672417177.9631
        },
        "end": {
          "local": "2015-03-31T06:03:36+04:00",
          "utc": "2015-03-31T02:03:36Z",
          "ms": 1427767415950.449
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-03-30",
          "window": {
            "start": {
              "local": "2015-03-30T06:17:07+04:00",
              "utc": "2015-03-30T02:17:07Z",
              "ms": 1427681826618.9592
            },
            "end": {
              "local": "2015-03-30T06:17:07+04:00",
              "utc": "2015-03-30T02:17:07Z",
              "ms": 1427681826618.9592
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-03-31",
          "window": {
            "start": {
              "local": "2015-03-31T06:16:06+04:00",
              "utc": "2015-03-31T02:16:06Z",
              "ms": 1427768165913.083
            },
            "end": {
              "local": "2015-03-31T06:16:06+04:00",
              "utc": "2015-03-31T02:16:06Z",
              "ms": 1427768165913.083
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 03:40 on Mon 30 Mar to 06:04 on Tue 31 Mar.",
          "fact": "2015-03-29T23:40:17Z → 2015-03-31T02:03:36Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:17 on the 30th and 06:16 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 750 s"
        },
        {
          "step": "ruling",
          "text": "Kāmadā Ekādaśī, Abu Dhabi, 2015: Monday 30 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": "2015-03-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-03-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kāmadā Ekādaśī 2015 falls on Monday 30 March. Ekādaśī runs from 03:40 on Mon 30 Mar to 06:04 on Tue 31 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-03-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ananga-trayodashi",
      "festival": "ananga-trayodashi",
      "name": "Anaṅga Trayodaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2738,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-04-01T08:39:04+04:00",
          "utc": "2015-04-01T04:39:04Z",
          "ms": 1427863143510.7822
        },
        "end": {
          "local": "2015-04-02T11:16:41+04:00",
          "utc": "2015-04-02T07:16:41Z",
          "ms": 1427959000539.022
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-01T08:39:04+04:00",
          "utc": "2015-04-01T04:39:04Z",
          "ms": 1427863143510.7822
        },
        "end": {
          "local": "2015-04-02T11:16:41+04:00",
          "utc": "2015-04-02T07:16:41Z",
          "ms": 1427959000539.022
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-04-01",
          "window": {
            "start": {
              "local": "2015-04-01T12:02:36+04:00",
              "utc": "2015-04-01T08:02:36Z",
              "ms": 1427875356042.4995
            },
            "end": {
              "local": "2015-04-01T12:50:36+04:00",
              "utc": "2015-04-01T08:50:36Z",
              "ms": 1427878236042.4995
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-04-02",
          "window": {
            "start": {
              "local": "2015-04-02T12:02:18+04:00",
              "utc": "2015-04-02T08:02:18Z",
              "ms": 1427961738177.08
            },
            "end": {
              "local": "2015-04-02T12:50:18+04:00",
              "utc": "2015-04-02T08:50:18Z",
              "ms": 1427964618177.08
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:39 on Wed 1 Apr to 11:17 on Thu 2 Apr.",
          "fact": "2015-04-01T04:39:04Z → 2015-04-02T07:16:41Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 1st, 12:02–12:50 on the 2nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 0 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 2738 s"
        },
        {
          "step": "ruling",
          "text": "Anaṅga Trayodaśī, Abu Dhabi, 2015: Wednesday 1 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": "2015-04-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-01",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Anaṅga Trayodaśī 2015 falls on Wednesday 1 April. Trayodaśī runs from 08:39 on Wed 1 Apr to 11:17 on Thu 2 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-04-01",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26511,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-04-01T08:39:04+04:00",
          "utc": "2015-04-01T04:39:04Z",
          "ms": 1427863143510.7822
        },
        "end": {
          "local": "2015-04-02T11:16:41+04:00",
          "utc": "2015-04-02T07:16:41Z",
          "ms": 1427959000539.022
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-01T08:39:04+04:00",
          "utc": "2015-04-01T04:39:04Z",
          "ms": 1427863143510.7822
        },
        "end": {
          "local": "2015-04-02T11:16:41+04:00",
          "utc": "2015-04-02T07:16:41Z",
          "ms": 1427959000539.022
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-04-01",
          "window": {
            "start": {
              "local": "2015-04-01T18:38:07+04:00",
              "utc": "2015-04-01T14:38:07Z",
              "ms": 1427899086729.3604
            },
            "end": {
              "local": "2015-04-01T20:10:54+04:00",
              "utc": "2015-04-01T16:10:54Z",
              "ms": 1427904654495.3948
            }
          },
          "covered_min": 93,
          "window_min": 93,
          "qualifies": true
        },
        {
          "local_date": "2015-04-02",
          "window": {
            "start": {
              "local": "2015-04-02T18:38:31+04:00",
              "utc": "2015-04-02T14:38:31Z",
              "ms": 1427985511379.5427
            },
            "end": {
              "local": "2015-04-02T20:11:08+04:00",
              "utc": "2015-04-02T16:11:08Z",
              "ms": 1427991067835.387
            }
          },
          "covered_min": 0,
          "window_min": 93,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:39 on Wed 1 Apr to 11:17 on Thu 2 Apr.",
          "fact": "2015-04-01T04:39:04Z → 2015-04-02T07:16:41Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:38–20:11 on the 1st, 18:39–20:11 on the 2nd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 93 of 93 minutes on the 1st and 0 of 93 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 26511 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Wednesday 1 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": "2015-04-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Wednesday 1 April. Trayodaśī runs from 08:39 on Wed 1 Apr to 11:17 on Thu 2 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-04-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/vishnu-damanaka-chaturdashi",
      "festival": "vishnu-damanaka-chaturdashi",
      "name": "Viṣṇudamanaka Caturdaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2738,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-04-02T11:16:41+04:00",
          "utc": "2015-04-02T07:16:41Z",
          "ms": 1427959000539.022
        },
        "end": {
          "local": "2015-04-03T13:47:50+04:00",
          "utc": "2015-04-03T09:47:50Z",
          "ms": 1428054469733.4604
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-02T11:16:41+04:00",
          "utc": "2015-04-02T07:16:41Z",
          "ms": 1427959000539.022
        },
        "end": {
          "local": "2015-04-03T13:47:50+04:00",
          "utc": "2015-04-03T09:47:50Z",
          "ms": 1428054469733.4604
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-04-02",
          "window": {
            "start": {
              "local": "2015-04-02T12:02:18+04:00",
              "utc": "2015-04-02T08:02:18Z",
              "ms": 1427961738177.08
            },
            "end": {
              "local": "2015-04-02T12:50:18+04:00",
              "utc": "2015-04-02T08:50:18Z",
              "ms": 1427964618177.08
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-04-03",
          "window": {
            "start": {
              "local": "2015-04-03T12:02:00+04:00",
              "utc": "2015-04-03T08:02:00Z",
              "ms": 1428048120426.627
            },
            "end": {
              "local": "2015-04-03T12:50:00+04:00",
              "utc": "2015-04-03T08:50:00Z",
              "ms": 1428051000426.627
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 11:17 on Thu 2 Apr to 13:48 on Fri 3 Apr.",
          "fact": "2015-04-02T07:16:41Z → 2015-04-03T09:47:50Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 2nd, 12:02–12:50 on the 3rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 48 of 48 on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Paraviddhā: the second is taken.",
          "fact": "priority: paraviddha → paraviddha · margin 2738 s"
        },
        {
          "step": "ruling",
          "text": "Viṣṇudamanaka Caturdaśī, Abu Dhabi, 2015: Friday 3 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": "2015-04-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-03",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Viṣṇudamanaka Caturdaśī 2015 falls on Friday 3 April. Caturdaśī runs from 11:17 on Thu 2 Apr to 13:48 on Fri 3 Apr and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/chaitri-purnima",
      "festival": "chaitri-purnima",
      "name": "Caitrī Pūrṇimā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3469,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-04-03T13:47:50+04:00",
          "utc": "2015-04-03T09:47:50Z",
          "ms": 1428054469733.4604
        },
        "end": {
          "local": "2015-04-04T16:05:34+04:00",
          "utc": "2015-04-04T12:05:34Z",
          "ms": 1428149134403.3533
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-03T13:47:50+04:00",
          "utc": "2015-04-03T09:47:50Z",
          "ms": 1428054469733.4604
        },
        "end": {
          "local": "2015-04-04T16:05:34+04:00",
          "utc": "2015-04-04T12:05:34Z",
          "ms": 1428149134403.3533
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-04-03",
          "window": {
            "start": {
              "local": "2015-04-03T12:02:00+04:00",
              "utc": "2015-04-03T08:02:00Z",
              "ms": 1428048120426.627
            },
            "end": {
              "local": "2015-04-03T12:50:00+04:00",
              "utc": "2015-04-03T08:50:00Z",
              "ms": 1428051000426.627
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-04-04",
          "window": {
            "start": {
              "local": "2015-04-04T12:01:43+04:00",
              "utc": "2015-04-04T08:01:43Z",
              "ms": 1428134502813.0012
            },
            "end": {
              "local": "2015-04-04T12:49:43+04:00",
              "utc": "2015-04-04T08:49:43Z",
              "ms": 1428137382813.0012
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 13:48 on Fri 3 Apr to 16:06 on Sat 4 Apr.",
          "fact": "2015-04-03T09:47:50Z → 2015-04-04T12:05:34Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 3rd, 12:02–12:50 on the 4th.",
          "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 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 3469 s"
        },
        {
          "step": "ruling",
          "text": "Caitrī Pūrṇimā, Abu Dhabi, 2015: Saturday 4 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": "2015-04-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Caitrī Pūrṇimā 2015 falls on Saturday 4 April. Pūrṇimā runs from 13:48 on Fri 3 Apr to 16:06 on Sat 4 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-04-07",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1736,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-04-07T20:50:30+04:00",
          "utc": "2015-04-07T16:50:30Z",
          "ms": 1428425429740.7908
        },
        "end": {
          "local": "2015-04-08T21:31:35+04:00",
          "utc": "2015-04-08T17:31:35Z",
          "ms": 1428514295254.574
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-07T20:50:30+04:00",
          "utc": "2015-04-07T16:50:30Z",
          "ms": 1428425429740.7908
        },
        "end": {
          "local": "2015-04-08T21:31:35+04:00",
          "utc": "2015-04-08T17:31:35Z",
          "ms": 1428514295254.574
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-04-07",
          "window": {
            "start": {
              "local": "2015-04-07T21:19:25+04:00",
              "utc": "2015-04-07T17:19:25Z",
              "ms": 1428427165295.1155
            },
            "end": {
              "local": "2015-04-07T21:19:25+04:00",
              "utc": "2015-04-07T17:19:25Z",
              "ms": 1428427165295.1155
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-04-08",
          "window": {
            "start": {
              "local": "2015-04-08T22:13:16+04:00",
              "utc": "2015-04-08T18:13:16Z",
              "ms": 1428516795874.4263
            },
            "end": {
              "local": "2015-04-08T22:13:16+04:00",
              "utc": "2015-04-08T18:13:16Z",
              "ms": 1428516795874.4263
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:50 on Tue 7 Apr to 21:32 on Wed 8 Apr.",
          "fact": "2015-04-07T16:50:30Z → 2015-04-08T17:31:35Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:19 on the 7th and 22:13 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 1736 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Tuesday 7 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": "2015-04-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Tuesday 7 April. Caturthī runs from 20:50 on Tue 7 Apr to 21:32 on Wed 8 Apr and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-04-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/vaishakhi",
      "festival": "vaishakhi",
      "name": "Vaiśākhī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22481,
      "anga": {
        "type": "sankranti",
        "index": 0,
        "key": "mesha",
        "name": "Meṣa",
        "start": {
          "local": "2015-04-14T12:17:05+04:00",
          "utc": "2015-04-14T08:17:05Z",
          "ms": 1428999425034.1904
        },
        "end": {
          "local": "2015-05-15T09:07:38+04:00",
          "utc": "2015-05-15T05:07:38Z",
          "ms": 1431666458431.8691
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2015-04-14T12:17:05+04:00",
          "utc": "2015-04-14T08:17:05Z",
          "ms": 1428999425034.1904
        },
        "end": {
          "local": "2015-04-14T12:17:05+04:00",
          "utc": "2015-04-14T08:17:05Z",
          "ms": 1428999425034.1904
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "2015-04-13",
          "window": {
            "start": {
              "local": "2015-04-13T06:03:21+04:00",
              "utc": "2015-04-13T02:03:21Z",
              "ms": 1428890600522.6233
            },
            "end": {
              "local": "2015-04-14T06:02:24+04:00",
              "utc": "2015-04-14T02:02:24Z",
              "ms": 1428976944451.669
            }
          },
          "covered_min": 0,
          "window_min": 1439,
          "qualifies": false
        },
        {
          "local_date": "2015-04-14",
          "window": {
            "start": {
              "local": "2015-04-14T06:02:24+04:00",
              "utc": "2015-04-14T02:02:24Z",
              "ms": 1428976944451.669
            },
            "end": {
              "local": "2015-04-15T06:01:29+04:00",
              "utc": "2015-04-15T02:01:29Z",
              "ms": 1429063288912.8252
            }
          },
          "covered_min": 1,
          "window_min": 1439,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Meṣa at 12:17 on Tue 14 Apr.",
          "fact": "2015-04-14T08:17:05Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 06:03 on the 13th, and from 06:02 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 14th, not the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunrise → only-day · margin 22481 s"
        },
        {
          "step": "ruling",
          "text": "Vaiśākhī, Abu Dhabi, 2015: Tuesday 14 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": "2015-04-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2015-04-14",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunset-rule",
          "local_date": "2015-04-14",
          "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 Abu Dhabi, Vaiśākhī 2015 falls on Tuesday 14 April. The Sun enters Meṣa at 12:17 on Tue 14 Apr, and the rule counts the day from sunrise.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-04-15",
      "festival": "ekadashi",
      "name": "Varūthinī Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20555,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-04-14T14:32:33+04:00",
          "utc": "2015-04-14T10:32:33Z",
          "ms": 1429007552609.3567
        },
        "end": {
          "local": "2015-04-15T11:44:04+04:00",
          "utc": "2015-04-15T07:44:04Z",
          "ms": 1429083844225.5374
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-14T14:32:33+04:00",
          "utc": "2015-04-14T10:32:33Z",
          "ms": 1429007552609.3567
        },
        "end": {
          "local": "2015-04-15T11:44:04+04:00",
          "utc": "2015-04-15T07:44:04Z",
          "ms": 1429083844225.5374
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-04-14",
          "window": {
            "start": {
              "local": "2015-04-14T06:02:24+04:00",
              "utc": "2015-04-14T02:02:24Z",
              "ms": 1428976944451.669
            },
            "end": {
              "local": "2015-04-14T06:02:24+04:00",
              "utc": "2015-04-14T02:02:24Z",
              "ms": 1428976944451.669
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-04-15",
          "window": {
            "start": {
              "local": "2015-04-15T06:01:29+04:00",
              "utc": "2015-04-15T02:01:29Z",
              "ms": 1429063288912.8252
            },
            "end": {
              "local": "2015-04-15T06:01:29+04:00",
              "utc": "2015-04-15T02:01:29Z",
              "ms": 1429063288912.8252
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 14:33 on Tue 14 Apr to 11:44 on Wed 15 Apr.",
          "fact": "2015-04-14T10:32:33Z → 2015-04-15T07:44:04Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:02 on the 14th and 06:01 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 20555 s"
        },
        {
          "step": "ruling",
          "text": "Varūthinī Ekādaśī, Abu Dhabi, 2015: Wednesday 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": "2015-04-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Varūthinī Ekādaśī 2015 falls on Wednesday 15 April. Ekādaśī runs from 14:33 on Tue 14 Apr to 11:44 on Wed 15 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-04-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-04-16",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32960,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-04-16T08:38:48+04:00",
          "utc": "2015-04-16T04:38:48Z",
          "ms": 1429159128439.2666
        },
        "end": {
          "local": "2015-04-17T05:23:48+04:00",
          "utc": "2015-04-17T01:23:48Z",
          "ms": 1429233827626.6528
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-16T08:38:48+04:00",
          "utc": "2015-04-16T04:38:48Z",
          "ms": 1429159128439.2666
        },
        "end": {
          "local": "2015-04-17T05:23:48+04:00",
          "utc": "2015-04-17T01:23:48Z",
          "ms": 1429233827626.6528
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-04-15",
          "window": {
            "start": {
              "local": "2015-04-15T18:43:59+04:00",
              "utc": "2015-04-15T14:43:59Z",
              "ms": 1429109039289.394
            },
            "end": {
              "local": "2015-04-15T20:14:12+04:00",
              "utc": "2015-04-15T16:14:12Z",
              "ms": 1429114451907.9783
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        },
        {
          "local_date": "2015-04-16",
          "window": {
            "start": {
              "local": "2015-04-16T18:44:25+04:00",
              "utc": "2015-04-16T14:44:25Z",
              "ms": 1429195465489.9802
            },
            "end": {
              "local": "2015-04-16T20:14:27+04:00",
              "utc": "2015-04-16T16:14:27Z",
              "ms": 1429200867360.7573
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:39 on Thu 16 Apr to 05:24 on Fri 17 Apr.",
          "fact": "2015-04-16T04:38:48Z → 2015-04-17T01:23:48Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:44–20:14 on the 15th, 18:44–20:14 on the 16th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 90 minutes on the 15th and 90 of 90 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 32960 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Thursday 16 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": "2015-04-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Thursday 16 April. Trayodaśī runs from 08:39 on Thu 16 Apr to 05:24 on Fri 17 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-04-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-04-17",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4868,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-04-17T05:23:48+04:00",
          "utc": "2015-04-17T01:23:48Z",
          "ms": 1429233827626.6528
        },
        "end": {
          "local": "2015-04-18T02:06:57+04:00",
          "utc": "2015-04-17T22:06:57Z",
          "ms": 1429308417223.3777
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-17T05:23:48+04:00",
          "utc": "2015-04-17T01:23:48Z",
          "ms": 1429233827626.6528
        },
        "end": {
          "local": "2015-04-18T02:06:57+04:00",
          "utc": "2015-04-17T22:06:57Z",
          "ms": 1429308417223.3777
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-04-16",
          "window": {
            "start": {
              "local": "2015-04-16T23:58:03+04:00",
              "utc": "2015-04-16T19:58:03Z",
              "ms": 1429214282505.3945
            },
            "end": {
              "local": "2015-04-17T00:46:03+04:00",
              "utc": "2015-04-16T20:46:03Z",
              "ms": 1429217162505.3945
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-04-17",
          "window": {
            "start": {
              "local": "2015-04-17T23:57:49+04:00",
              "utc": "2015-04-17T19:57:49Z",
              "ms": 1429300668785.539
            },
            "end": {
              "local": "2015-04-18T00:45:49+04:00",
              "utc": "2015-04-17T20:45:49Z",
              "ms": 1429303548785.539
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:24 on Fri 17 Apr to 02:07 on Sat 18 Apr.",
          "fact": "2015-04-17T01:23:48Z → 2015-04-17T22:06:57Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:58–00:46 on the 16th, 23:58–00:46 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 4868 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Friday 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": "2015-04-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Friday 17 April. Caturdaśī runs from 05:24 on Fri 17 Apr to 02:07 on Sat 18 Apr and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-04-17",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/parashurama-jayanti",
      "festival": "parashurama-jayanti",
      "name": "Paraśurāma Jayantī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4416,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2015-04-20T17:32:36+04:00",
          "utc": "2015-04-20T13:32:36Z",
          "ms": 1429536755646.397
        },
        "end": {
          "local": "2015-04-21T15:35:47+04:00",
          "utc": "2015-04-21T11:35:47Z",
          "ms": 1429616147228.6677
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-20T17:32:36+04:00",
          "utc": "2015-04-20T13:32:36Z",
          "ms": 1429536755646.397
        },
        "end": {
          "local": "2015-04-21T15:35:47+04:00",
          "utc": "2015-04-21T11:35:47Z",
          "ms": 1429616147228.6677
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-04-20",
          "window": {
            "start": {
              "local": "2015-04-20T18:46:12+04:00",
              "utc": "2015-04-20T14:46:12Z",
              "ms": 1429541172003.1865
            },
            "end": {
              "local": "2015-04-20T20:15:31+04:00",
              "utc": "2015-04-20T16:15:31Z",
              "ms": 1429546531474.8228
            }
          },
          "covered_min": 89,
          "window_min": 89,
          "qualifies": true
        },
        {
          "local_date": "2015-04-21",
          "window": {
            "start": {
              "local": "2015-04-21T18:46:39+04:00",
              "utc": "2015-04-21T14:46:39Z",
              "ms": 1429627599053.0674
            },
            "end": {
              "local": "2015-04-21T20:15:48+04:00",
              "utc": "2015-04-21T16:15:48Z",
              "ms": 1429632948086.4739
            }
          },
          "covered_min": 0,
          "window_min": 89,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 17:33 on Mon 20 Apr to 15:36 on Tue 21 Apr.",
          "fact": "2015-04-20T13:32:36Z → 2015-04-21T11:35:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:16 on the 20th, 18:47–20:16 on the 21st.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pradoṣa. It covers 89 of 89 minutes on the 20th and 0 of 89 on the 21st.",
          "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 4416 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Jayantī, Abu Dhabi, 2015: Monday 20 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": "2015-04-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Paraśurāma Jayantī 2015 falls on Monday 20 April. Tṛtīyā runs from 17:33 on Mon 20 Apr to 15:36 on Tue 21 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/akshaya-tritiya",
      "festival": "akshaya-tritiya",
      "name": "Akṣaya Tṛtīyā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19369,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2015-04-20T17:32:36+04:00",
          "utc": "2015-04-20T13:32:36Z",
          "ms": 1429536755646.397
        },
        "end": {
          "local": "2015-04-21T15:35:47+04:00",
          "utc": "2015-04-21T11:35:47Z",
          "ms": 1429616147228.6677
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-20T17:32:36+04:00",
          "utc": "2015-04-20T13:32:36Z",
          "ms": 1429536755646.397
        },
        "end": {
          "local": "2015-04-21T15:35:47+04:00",
          "utc": "2015-04-21T11:35:47Z",
          "ms": 1429616147228.6677
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2015-04-20",
          "window": {
            "start": {
              "local": "2015-04-20T05:57:00+04:00",
              "utc": "2015-04-20T01:57:00Z",
              "ms": 1429495019949.8909
            },
            "end": {
              "local": "2015-04-20T10:13:24+04:00",
              "utc": "2015-04-20T06:13:24Z",
              "ms": 1429510403967.656
            }
          },
          "covered_min": 0,
          "window_min": 256,
          "qualifies": false
        },
        {
          "local_date": "2015-04-21",
          "window": {
            "start": {
              "local": "2015-04-21T05:56:08+04:00",
              "utc": "2015-04-21T01:56:08Z",
              "ms": 1429581368040.4587
            },
            "end": {
              "local": "2015-04-21T10:12:58+04:00",
              "utc": "2015-04-21T06:12:58Z",
              "ms": 1429596778377.9949
            }
          },
          "covered_min": 257,
          "window_min": 257,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 17:33 on Mon 20 Apr to 15:36 on Tue 21 Apr.",
          "fact": "2015-04-20T13:32:36Z → 2015-04-21T11:35:47Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:57–10:13 on the 20th, 05:56–10:13 on the 21st.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 0 of 256 minutes on the 20th and 257 of 257 on the 21st.",
          "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 19369 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Tṛtīyā, Abu Dhabi, 2015: Tuesday 21 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": "2015-04-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Akṣaya Tṛtīyā 2015 falls on Tuesday 21 April. Tṛtīyā runs from 17:33 on Mon 20 Apr to 15:36 on Tue 21 Apr and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-04-22",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5644,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-04-21T15:35:47+04:00",
          "utc": "2015-04-21T11:35:47Z",
          "ms": 1429616147228.6677
        },
        "end": {
          "local": "2015-04-22T14:19:16+04:00",
          "utc": "2015-04-22T10:19:16Z",
          "ms": 1429697955928.3333
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-21T15:35:47+04:00",
          "utc": "2015-04-21T11:35:47Z",
          "ms": 1429616147228.6677
        },
        "end": {
          "local": "2015-04-22T14:19:16+04:00",
          "utc": "2015-04-22T10:19:16Z",
          "ms": 1429697955928.3333
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-04-21",
          "window": {
            "start": {
              "local": "2015-04-21T11:57:24+04:00",
              "utc": "2015-04-21T07:57:24Z",
              "ms": 1429603043546.7632
            },
            "end": {
              "local": "2015-04-21T12:45:24+04:00",
              "utc": "2015-04-21T08:45:24Z",
              "ms": 1429605923546.7632
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-04-22",
          "window": {
            "start": {
              "local": "2015-04-22T11:57:12+04:00",
              "utc": "2015-04-22T07:57:12Z",
              "ms": 1429689431535.8013
            },
            "end": {
              "local": "2015-04-22T12:45:12+04:00",
              "utc": "2015-04-22T08:45:12Z",
              "ms": 1429692311535.8013
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:36 on Tue 21 Apr to 14:19 on Wed 22 Apr.",
          "fact": "2015-04-21T11:35:47Z → 2015-04-22T10:19:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 21st, 11:57–12:45 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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5644 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Wednesday 22 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": "2015-04-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Wednesday 22 April. Caturthī runs from 15:36 on Tue 21 Apr to 14:19 on Wed 22 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-04-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shankara-jayanti",
      "festival": "shankara-jayanti",
      "name": "Śaṅkara Jayantī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3796,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2015-04-22T14:19:16+04:00",
          "utc": "2015-04-22T10:19:16Z",
          "ms": 1429697955928.3333
        },
        "end": {
          "local": "2015-04-23T13:48:16+04:00",
          "utc": "2015-04-23T09:48:16Z",
          "ms": 1429782496015.3337
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-22T14:19:16+04:00",
          "utc": "2015-04-22T10:19:16Z",
          "ms": 1429697955928.3333
        },
        "end": {
          "local": "2015-04-23T13:48:16+04:00",
          "utc": "2015-04-23T09:48:16Z",
          "ms": 1429782496015.3337
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-04-22",
          "window": {
            "start": {
              "local": "2015-04-22T11:57:12+04:00",
              "utc": "2015-04-22T07:57:12Z",
              "ms": 1429689431535.8013
            },
            "end": {
              "local": "2015-04-22T12:45:12+04:00",
              "utc": "2015-04-22T08:45:12Z",
              "ms": 1429692311535.8013
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-04-23",
          "window": {
            "start": {
              "local": "2015-04-23T11:57:00+04:00",
              "utc": "2015-04-23T07:57:00Z",
              "ms": 1429775819953.0483
            },
            "end": {
              "local": "2015-04-23T12:45:00+04:00",
              "utc": "2015-04-23T08:45:00Z",
              "ms": 1429778699953.0483
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 14:19 on Wed 22 Apr to 13:48 on Thu 23 Apr.",
          "fact": "2015-04-22T10:19:16Z → 2015-04-23T09:48:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 22nd, 11:57–12:45 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: unstated → only-day · margin 3796 s"
        },
        {
          "step": "ruling",
          "text": "Śaṅkara Jayantī, Abu Dhabi, 2015: Thursday 23 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": "2015-04-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śaṅkara Jayantī 2015 falls on Thursday 23 April. Pañcamī runs from 14:19 on Wed 22 Apr to 13:48 on Thu 23 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/gangotpatti",
      "festival": "gangotpatti",
      "name": "Gaṅgotpatti",
      "everyday": "Ganga Saptami",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4814,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2015-04-24T14:05:03+04:00",
          "utc": "2015-04-24T10:05:03Z",
          "ms": 1429869902930.3418
        },
        "end": {
          "local": "2015-04-25T15:08:02+04:00",
          "utc": "2015-04-25T11:08:02Z",
          "ms": 1429960081610.5745
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-24T14:05:03+04:00",
          "utc": "2015-04-24T10:05:03Z",
          "ms": 1429869902930.3418
        },
        "end": {
          "local": "2015-04-25T15:08:02+04:00",
          "utc": "2015-04-25T11:08:02Z",
          "ms": 1429960081610.5745
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-04-24",
          "window": {
            "start": {
              "local": "2015-04-24T11:56:49+04:00",
              "utc": "2015-04-24T07:56:49Z",
              "ms": 1429862208808.4233
            },
            "end": {
              "local": "2015-04-24T12:44:49+04:00",
              "utc": "2015-04-24T08:44:49Z",
              "ms": 1429865088808.4233
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-04-25",
          "window": {
            "start": {
              "local": "2015-04-25T11:56:38+04:00",
              "utc": "2015-04-25T07:56:38Z",
              "ms": 1429948598112.2507
            },
            "end": {
              "local": "2015-04-25T12:44:38+04:00",
              "utc": "2015-04-25T08:44:38Z",
              "ms": 1429951478112.2507
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 14:05 on Fri 24 Apr to 15:08 on Sat 25 Apr.",
          "fact": "2015-04-24T10:05:03Z → 2015-04-25T11:08:02Z"
        },
        {
          "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": "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 4814 s"
        },
        {
          "step": "ruling",
          "text": "Gaṅgotpatti, Abu Dhabi, 2015: Saturday 25 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": "2015-04-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Gaṅgotpatti (Ganga Saptami) 2015 falls on Saturday 25 April. Saptamī runs from 14:05 on Fri 24 Apr to 15:08 on Sat 25 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-04-29",
      "festival": "ekadashi",
      "name": "Mohinī Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20203,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-04-28T21:36:36+04:00",
          "utc": "2015-04-28T17:36:36Z",
          "ms": 1430242595872.6677
        },
        "end": {
          "local": "2015-04-30T00:12:11+04:00",
          "utc": "2015-04-29T20:12:11Z",
          "ms": 1430338330711.6782
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-28T21:36:36+04:00",
          "utc": "2015-04-28T17:36:36Z",
          "ms": 1430242595872.6677
        },
        "end": {
          "local": "2015-04-30T00:12:11+04:00",
          "utc": "2015-04-29T20:12:11Z",
          "ms": 1430338330711.6782
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-04-29",
          "window": {
            "start": {
              "local": "2015-04-29T05:49:39+04:00",
              "utc": "2015-04-29T01:49:39Z",
              "ms": 1430272178746.2092
            },
            "end": {
              "local": "2015-04-29T05:49:39+04:00",
              "utc": "2015-04-29T01:49:39Z",
              "ms": 1430272178746.2092
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-04-30",
          "window": {
            "start": {
              "local": "2015-04-30T05:48:54+04:00",
              "utc": "2015-04-30T01:48:54Z",
              "ms": 1430358533658.4387
            },
            "end": {
              "local": "2015-04-30T05:48:54+04:00",
              "utc": "2015-04-30T01:48:54Z",
              "ms": 1430358533658.4387
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 21:37 on Tue 28 Apr to 00:12 on Thu 30 Apr.",
          "fact": "2015-04-28T17:36:36Z → 2015-04-29T20:12:11Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:50 on the 29th and 05:49 on the 30th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 20203 s"
        },
        {
          "step": "ruling",
          "text": "Mohinī Ekādaśī, Abu Dhabi, 2015: Wednesday 29 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": "2015-04-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Mohinī Ekādaśī 2015 falls on Wednesday 29 April. Ekādaśī runs from 21:37 on Tue 28 Apr to 00:12 on Thu 30 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-04-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/parashurama-dvadashi",
      "festival": "parashurama-dvadashi",
      "name": "Paraśurāma Dvādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33398,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2015-04-30T00:12:11+04:00",
          "utc": "2015-04-29T20:12:11Z",
          "ms": 1430338330711.6782
        },
        "end": {
          "local": "2015-05-01T02:39:06+04:00",
          "utc": "2015-04-30T22:39:06Z",
          "ms": 1430433546259.7656
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-30T00:12:11+04:00",
          "utc": "2015-04-29T20:12:11Z",
          "ms": 1430338330711.6782
        },
        "end": {
          "local": "2015-05-01T02:39:06+04:00",
          "utc": "2015-04-30T22:39:06Z",
          "ms": 1430433546259.7656
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-04-30",
          "window": {
            "start": {
              "local": "2015-04-30T11:55:52+04:00",
              "utc": "2015-04-30T07:55:52Z",
              "ms": 1430380551729.5776
            },
            "end": {
              "local": "2015-04-30T12:43:52+04:00",
              "utc": "2015-04-30T08:43:52Z",
              "ms": 1430383431729.5776
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-05-01",
          "window": {
            "start": {
              "local": "2015-05-01T11:55:44+04:00",
              "utc": "2015-05-01T07:55:44Z",
              "ms": 1430466943946.3335
            },
            "end": {
              "local": "2015-05-01T12:43:44+04:00",
              "utc": "2015-05-01T08:43:44Z",
              "ms": 1430469823946.3335
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 00:12 on Thu 30 Apr to 02:39 on Fri 1 May.",
          "fact": "2015-04-29T20:12:11Z → 2015-04-30T22:39:06Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 30th, 11:56–12:44 on the 1st.",
          "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 30th and 0 of 48 on the 1st.",
          "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 33398 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Dvādaśī, Abu Dhabi, 2015: Thursday 30 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "parashurama-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-04-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Paraśurāma Dvādaśī 2015 falls on Thursday 30 April. Dvādaśī runs from 00:12 on Thu 30 Apr to 02:39 on Fri 1 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/rukmini-dvadashi",
      "festival": "rukmini-dvadashi",
      "name": "Rukmiṇī Dvādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-04-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33398,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2015-04-30T00:12:11+04:00",
          "utc": "2015-04-29T20:12:11Z",
          "ms": 1430338330711.6782
        },
        "end": {
          "local": "2015-05-01T02:39:06+04:00",
          "utc": "2015-04-30T22:39:06Z",
          "ms": 1430433546259.7656
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-04-30T00:12:11+04:00",
          "utc": "2015-04-29T20:12:11Z",
          "ms": 1430338330711.6782
        },
        "end": {
          "local": "2015-05-01T02:39:06+04:00",
          "utc": "2015-04-30T22:39:06Z",
          "ms": 1430433546259.7656
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-04-30",
          "window": {
            "start": {
              "local": "2015-04-30T11:55:52+04:00",
              "utc": "2015-04-30T07:55:52Z",
              "ms": 1430380551729.5776
            },
            "end": {
              "local": "2015-04-30T12:43:52+04:00",
              "utc": "2015-04-30T08:43:52Z",
              "ms": 1430383431729.5776
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-05-01",
          "window": {
            "start": {
              "local": "2015-05-01T11:55:44+04:00",
              "utc": "2015-05-01T07:55:44Z",
              "ms": 1430466943946.3335
            },
            "end": {
              "local": "2015-05-01T12:43:44+04:00",
              "utc": "2015-05-01T08:43:44Z",
              "ms": 1430469823946.3335
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 00:12 on Thu 30 Apr to 02:39 on Fri 1 May.",
          "fact": "2015-04-29T20:12:11Z → 2015-04-30T22:39:06Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 30th, 11:56–12:44 on the 1st.",
          "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 30th and 0 of 48 on the 1st.",
          "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 33398 s"
        },
        {
          "step": "ruling",
          "text": "Rukmiṇī Dvādaśī, Abu Dhabi, 2015: Thursday 30 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rukmini-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-04-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-04-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Rukmiṇī Dvādaśī 2015 falls on Thursday 30 April. Dvādaśī runs from 00:12 on Thu 30 Apr to 02:39 on Fri 1 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-05-01",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22838,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-05-01T02:39:06+04:00",
          "utc": "2015-04-30T22:39:06Z",
          "ms": 1430433546259.7656
        },
        "end": {
          "local": "2015-05-02T04:47:09+04:00",
          "utc": "2015-05-02T00:47:09Z",
          "ms": 1430527629448.2705
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-01T02:39:06+04:00",
          "utc": "2015-04-30T22:39:06Z",
          "ms": 1430433546259.7656
        },
        "end": {
          "local": "2015-05-02T04:47:09+04:00",
          "utc": "2015-05-02T00:47:09Z",
          "ms": 1430527629448.2705
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-04-30",
          "window": {
            "start": {
              "local": "2015-04-30T18:50:50+04:00",
              "utc": "2015-04-30T14:50:50Z",
              "ms": 1430405449800.7163
            },
            "end": {
              "local": "2015-04-30T20:18:28+04:00",
              "utc": "2015-04-30T16:18:28Z",
              "ms": 1430410708419.141
            }
          },
          "covered_min": 0,
          "window_min": 88,
          "qualifies": false
        },
        {
          "local_date": "2015-05-01",
          "window": {
            "start": {
              "local": "2015-05-01T18:51:18+04:00",
              "utc": "2015-05-01T14:51:18Z",
              "ms": 1430491878453.764
            },
            "end": {
              "local": "2015-05-01T20:18:47+04:00",
              "utc": "2015-05-01T16:18:47Z",
              "ms": 1430497127474.5537
            }
          },
          "covered_min": 87,
          "window_min": 87,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 02:39 on Fri 1 May to 04:47 on Sat 2 May.",
          "fact": "2015-04-30T22:39:06Z → 2015-05-02T00:47:09Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:18 on the 30th, 18:51–20:19 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 88 minutes on the 30th and 87 of 87 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 22838 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Friday 1 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": "2015-05-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Friday 1 May. Trayodaśī runs from 02:39 on Fri 1 May to 04:47 on Sat 2 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-05-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/nrisimha-chaturdashi",
      "festival": "nrisimha-chaturdashi",
      "name": "Nṛsiṃha Caturdaśī",
      "everyday": "Narasimha Jayanti",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30502,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-05-02T04:47:09+04:00",
          "utc": "2015-05-02T00:47:09Z",
          "ms": 1430527629448.2705
        },
        "end": {
          "local": "2015-05-03T06:29:23+04:00",
          "utc": "2015-05-03T02:29:23Z",
          "ms": 1430620163052.9329
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-02T04:47:09+04:00",
          "utc": "2015-05-02T00:47:09Z",
          "ms": 1430527629448.2705
        },
        "end": {
          "local": "2015-05-03T06:29:23+04:00",
          "utc": "2015-05-03T02:29:23Z",
          "ms": 1430620163052.9329
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-05-01",
          "window": {
            "start": {
              "local": "2015-05-01T18:51:18+04:00",
              "utc": "2015-05-01T14:51:18Z",
              "ms": 1430491878453.764
            },
            "end": {
              "local": "2015-05-01T20:18:47+04:00",
              "utc": "2015-05-01T16:18:47Z",
              "ms": 1430497127474.5537
            }
          },
          "covered_min": 0,
          "window_min": 87,
          "qualifies": false
        },
        {
          "local_date": "2015-05-02",
          "window": {
            "start": {
              "local": "2015-05-02T18:51:47+04:00",
              "utc": "2015-05-02T14:51:47Z",
              "ms": 1430578307259.653
            },
            "end": {
              "local": "2015-05-02T20:19:07+04:00",
              "utc": "2015-05-02T16:19:07Z",
              "ms": 1430583546784.1062
            }
          },
          "covered_min": 87,
          "window_min": 87,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 04:47 on Sat 2 May to 06:29 on Sun 3 May.",
          "fact": "2015-05-02T00:47:09Z → 2015-05-03T02:29:23Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:19 on the 1st, 18:52–20:19 on the 2nd.",
          "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 87 minutes on the 1st and 87 of 87 on the 2nd.",
          "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 30502 s"
        },
        {
          "step": "ruling",
          "text": "Nṛsiṃha Caturdaśī, Abu Dhabi, 2015: Saturday 2 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": "2015-05-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2015 falls on Saturday 2 May. Caturdaśī runs from 04:47 on Sat 2 May to 06:29 on Sun 3 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/buddha-purnima",
      "festival": "buddha-purnima",
      "name": "Buddha Pūrṇimā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15199,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-05-03T06:29:23+04:00",
          "utc": "2015-05-03T02:29:23Z",
          "ms": 1430620163052.9329
        },
        "end": {
          "local": "2015-05-04T07:42:05+04:00",
          "utc": "2015-05-04T03:42:05Z",
          "ms": 1430710925102.6816
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-03T06:29:23+04:00",
          "utc": "2015-05-03T02:29:23Z",
          "ms": 1430620163052.9329
        },
        "end": {
          "local": "2015-05-04T07:42:05+04:00",
          "utc": "2015-05-04T03:42:05Z",
          "ms": 1430710925102.6816
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-05-03",
          "window": {
            "start": {
              "local": "2015-05-03T11:55:30+04:00",
              "utc": "2015-05-03T07:55:30Z",
              "ms": 1430639729954.5042
            },
            "end": {
              "local": "2015-05-03T12:43:30+04:00",
              "utc": "2015-05-03T08:43:30Z",
              "ms": 1430642609954.5042
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-05-04",
          "window": {
            "start": {
              "local": "2015-05-04T11:55:24+04:00",
              "utc": "2015-05-04T07:55:24Z",
              "ms": 1430726123765.3528
            },
            "end": {
              "local": "2015-05-04T12:43:24+04:00",
              "utc": "2015-05-04T08:43:24Z",
              "ms": 1430729003765.3528
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 06:29 on Sun 3 May to 07:42 on Mon 4 May.",
          "fact": "2015-05-03T02:29:23Z → 2015-05-04T03:42:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 3rd, 11:55–12:43 on the 4th.",
          "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 3rd and 0 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: unstated → only-day · margin 15199 s"
        },
        {
          "step": "ruling",
          "text": "Buddha Pūrṇimā, Abu Dhabi, 2015: Sunday 3 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": "2015-05-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Buddha Pūrṇimā 2015 falls on Sunday 3 May. Pūrṇimā runs from 06:29 on Sun 3 May to 07:42 on Mon 4 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sampat-gauri-vrata",
      "festival": "sampat-gauri-vrata",
      "name": "Sampat Gaurī Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15199,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-05-03T06:29:23+04:00",
          "utc": "2015-05-03T02:29:23Z",
          "ms": 1430620163052.9329
        },
        "end": {
          "local": "2015-05-04T07:42:05+04:00",
          "utc": "2015-05-04T03:42:05Z",
          "ms": 1430710925102.6816
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-03T06:29:23+04:00",
          "utc": "2015-05-03T02:29:23Z",
          "ms": 1430620163052.9329
        },
        "end": {
          "local": "2015-05-04T07:42:05+04:00",
          "utc": "2015-05-04T03:42:05Z",
          "ms": 1430710925102.6816
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-05-03",
          "window": {
            "start": {
              "local": "2015-05-03T11:55:30+04:00",
              "utc": "2015-05-03T07:55:30Z",
              "ms": 1430639729954.5042
            },
            "end": {
              "local": "2015-05-03T12:43:30+04:00",
              "utc": "2015-05-03T08:43:30Z",
              "ms": 1430642609954.5042
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-05-04",
          "window": {
            "start": {
              "local": "2015-05-04T11:55:24+04:00",
              "utc": "2015-05-04T07:55:24Z",
              "ms": 1430726123765.3528
            },
            "end": {
              "local": "2015-05-04T12:43:24+04:00",
              "utc": "2015-05-04T08:43:24Z",
              "ms": 1430729003765.3528
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 06:29 on Sun 3 May to 07:42 on Mon 4 May.",
          "fact": "2015-05-03T02:29:23Z → 2015-05-04T03:42:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 3rd, 11:55–12:43 on the 4th.",
          "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 3rd and 0 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 15199 s"
        },
        {
          "step": "ruling",
          "text": "Sampat Gaurī Vrata, Abu Dhabi, 2015: Sunday 3 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": "2015-05-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Sampat Gaurī Vrata 2015 falls on Sunday 3 May. Pūrṇimā runs from 06:29 on Sun 3 May to 07:42 on Mon 4 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-05-07",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35063,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-05-07T08:21:51+04:00",
          "utc": "2015-05-07T04:21:51Z",
          "ms": 1430972510880.8904
        },
        "end": {
          "local": "2015-05-08T07:41:44+04:00",
          "utc": "2015-05-08T03:41:44Z",
          "ms": 1431056503642.972
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-07T08:21:51+04:00",
          "utc": "2015-05-07T04:21:51Z",
          "ms": 1430972510880.8904
        },
        "end": {
          "local": "2015-05-08T07:41:44+04:00",
          "utc": "2015-05-08T03:41:44Z",
          "ms": 1431056503642.972
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-05-06",
          "window": {
            "start": {
              "local": "2015-05-06T21:03:09+04:00",
              "utc": "2015-05-06T17:03:09Z",
              "ms": 1430931789275.706
            },
            "end": {
              "local": "2015-05-06T21:03:09+04:00",
              "utc": "2015-05-06T17:03:09Z",
              "ms": 1430931789275.706
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-05-07",
          "window": {
            "start": {
              "local": "2015-05-07T21:57:21+04:00",
              "utc": "2015-05-07T17:57:21Z",
              "ms": 1431021440776.0652
            },
            "end": {
              "local": "2015-05-07T21:57:21+04:00",
              "utc": "2015-05-07T17:57:21Z",
              "ms": 1431021440776.0652
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 08:22 on Thu 7 May to 07:42 on Fri 8 May.",
          "fact": "2015-05-07T04:21:51Z → 2015-05-08T03:41:44Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:03 on the 6th and 21:57 on the 7th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 6th and is on the 7th.",
          "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 35063 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Thursday 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": "2015-05-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Thursday 7 May. Caturthī runs from 08:22 on Thu 7 May to 07:42 on Fri 8 May and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-05-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-05-14",
      "festival": "ekadashi",
      "name": "Aparā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31506,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-05-13T20:54:57+04:00",
          "utc": "2015-05-13T16:54:57Z",
          "ms": 1431536097179.3875
        },
        "end": {
          "local": "2015-05-14T18:19:52+04:00",
          "utc": "2015-05-14T14:19:52Z",
          "ms": 1431613192023.8672
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-13T20:54:57+04:00",
          "utc": "2015-05-13T16:54:57Z",
          "ms": 1431536097179.3875
        },
        "end": {
          "local": "2015-05-14T18:19:52+04:00",
          "utc": "2015-05-14T14:19:52Z",
          "ms": 1431613192023.8672
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-05-14",
          "window": {
            "start": {
              "local": "2015-05-14T05:40:03+04:00",
              "utc": "2015-05-14T01:40:03Z",
              "ms": 1431567603334.4602
            },
            "end": {
              "local": "2015-05-14T05:40:03+04:00",
              "utc": "2015-05-14T01:40:03Z",
              "ms": 1431567603334.4602
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-05-15",
          "window": {
            "start": {
              "local": "2015-05-15T05:39:33+04:00",
              "utc": "2015-05-15T01:39:33Z",
              "ms": 1431653973432.0977
            },
            "end": {
              "local": "2015-05-15T05:39:33+04:00",
              "utc": "2015-05-15T01:39:33Z",
              "ms": 1431653973432.0977
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 20:55 on Wed 13 May to 18:20 on Thu 14 May.",
          "fact": "2015-05-13T16:54:57Z → 2015-05-14T14:19:52Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:40 on the 14th and 05:40 on the 15th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 14th and is not on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 31506 s"
        },
        {
          "step": "ruling",
          "text": "Aparā Ekādaśī, Abu Dhabi, 2015: Thursday 14 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": "2015-05-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Aparā Ekādaśī 2015 falls on Thursday 14 May. Ekādaśī runs from 20:55 on Wed 13 May to 18:20 on Thu 14 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-05-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-05-15",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11885,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-05-15T15:40:09+04:00",
          "utc": "2015-05-15T11:40:09Z",
          "ms": 1431690008695.7078
        },
        "end": {
          "local": "2015-05-16T13:01:17+04:00",
          "utc": "2015-05-16T09:01:17Z",
          "ms": 1431766877220.331
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-15T15:40:09+04:00",
          "utc": "2015-05-15T11:40:09Z",
          "ms": 1431690008695.7078
        },
        "end": {
          "local": "2015-05-16T13:01:17+04:00",
          "utc": "2015-05-16T09:01:17Z",
          "ms": 1431766877220.331
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-05-15",
          "window": {
            "start": {
              "local": "2015-05-15T18:58:13+04:00",
              "utc": "2015-05-15T14:58:13Z",
              "ms": 1431701893347.3362
            },
            "end": {
              "local": "2015-05-15T20:23:40+04:00",
              "utc": "2015-05-15T16:23:40Z",
              "ms": 1431707020190.372
            }
          },
          "covered_min": 85,
          "window_min": 85,
          "qualifies": true
        },
        {
          "local_date": "2015-05-16",
          "window": {
            "start": {
              "local": "2015-05-16T18:58:44+04:00",
              "utc": "2015-05-16T14:58:44Z",
              "ms": 1431788323578.4004
            },
            "end": {
              "local": "2015-05-16T20:24:03+04:00",
              "utc": "2015-05-16T16:24:03Z",
              "ms": 1431793442708.6943
            }
          },
          "covered_min": 0,
          "window_min": 85,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:40 on Fri 15 May to 13:01 on Sat 16 May.",
          "fact": "2015-05-15T11:40:09Z → 2015-05-16T09:01:17Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:58–20:24 on the 15th, 18:59–20:24 on the 16th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 85 of 85 minutes on the 15th and 0 of 85 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 11885 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Friday 15 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": "2015-05-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Friday 15 May. Trayodaśī runs from 15:40 on Fri 15 May to 13:01 on Sat 16 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-05-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-05-16",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35231,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-05-16T13:01:17+04:00",
          "utc": "2015-05-16T09:01:17Z",
          "ms": 1431766877220.331
        },
        "end": {
          "local": "2015-05-17T10:29:51+04:00",
          "utc": "2015-05-17T06:29:51Z",
          "ms": 1431844191081.625
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-16T13:01:17+04:00",
          "utc": "2015-05-16T09:01:17Z",
          "ms": 1431766877220.331
        },
        "end": {
          "local": "2015-05-17T10:29:51+04:00",
          "utc": "2015-05-17T06:29:51Z",
          "ms": 1431844191081.625
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-05-15",
          "window": {
            "start": {
              "local": "2015-05-15T23:54:39+04:00",
              "utc": "2015-05-15T19:54:39Z",
              "ms": 1431719679008.7205
            },
            "end": {
              "local": "2015-05-16T00:42:39+04:00",
              "utc": "2015-05-15T20:42:39Z",
              "ms": 1431722559008.7205
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-05-16",
          "window": {
            "start": {
              "local": "2015-05-16T23:54:40+04:00",
              "utc": "2015-05-16T19:54:40Z",
              "ms": 1431806080317.0024
            },
            "end": {
              "local": "2015-05-17T00:42:40+04:00",
              "utc": "2015-05-16T20:42:40Z",
              "ms": 1431808960317.0024
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 13:01 on Sat 16 May to 10:30 on Sun 17 May.",
          "fact": "2015-05-16T09:01:17Z → 2015-05-17T06:29:51Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:55–00:43 on the 15th, 23:55–00:43 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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 35231 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Saturday 16 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": "2015-05-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Saturday 16 May. Caturdaśī runs from 13:01 on Sat 16 May to 10:30 on Sun 17 May and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-05-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/rambha-tritiya",
      "festival": "rambha-tritiya",
      "name": "Rambhā Tṛtīyā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25147,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2015-05-20T04:55:56+04:00",
          "utc": "2015-05-20T00:55:56Z",
          "ms": 1432083355896.4631
        },
        "end": {
          "local": "2015-05-21T04:09:56+04:00",
          "utc": "2015-05-21T00:09:56Z",
          "ms": 1432166996487.9978
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-20T04:55:56+04:00",
          "utc": "2015-05-20T00:55:56Z",
          "ms": 1432083355896.4631
        },
        "end": {
          "local": "2015-05-21T04:09:56+04:00",
          "utc": "2015-05-21T00:09:56Z",
          "ms": 1432166996487.9978
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-05-20",
          "window": {
            "start": {
              "local": "2015-05-20T11:55:03+04:00",
              "utc": "2015-05-20T07:55:03Z",
              "ms": 1432108502647.0671
            },
            "end": {
              "local": "2015-05-20T12:43:03+04:00",
              "utc": "2015-05-20T08:43:03Z",
              "ms": 1432111382647.0671
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-05-21",
          "window": {
            "start": {
              "local": "2015-05-21T11:55:06+04:00",
              "utc": "2015-05-21T07:55:06Z",
              "ms": 1432194906122.0566
            },
            "end": {
              "local": "2015-05-21T12:43:06+04:00",
              "utc": "2015-05-21T08:43:06Z",
              "ms": 1432197786122.0566
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 04:56 on Wed 20 May to 04:10 on Thu 21 May.",
          "fact": "2015-05-20T00:55:56Z → 2015-05-21T00:09:56Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 20th, 11:55–12:43 on the 21st.",
          "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 20th and 0 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 25147 s"
        },
        {
          "step": "ruling",
          "text": "Rambhā Tṛtīyā, Abu Dhabi, 2015: Wednesday 20 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": "2015-05-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Rambhā Tṛtīyā 2015 falls on Wednesday 20 May. Tṛtīyā runs from 04:56 on Wed 20 May to 04:10 on Thu 21 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-05-21",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27910,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-05-21T04:09:56+04:00",
          "utc": "2015-05-21T00:09:56Z",
          "ms": 1432166996487.9978
        },
        "end": {
          "local": "2015-05-22T04:06:25+04:00",
          "utc": "2015-05-22T00:06:25Z",
          "ms": 1432253184989.6191
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-21T04:09:56+04:00",
          "utc": "2015-05-21T00:09:56Z",
          "ms": 1432166996487.9978
        },
        "end": {
          "local": "2015-05-22T04:06:25+04:00",
          "utc": "2015-05-22T00:06:25Z",
          "ms": 1432253184989.6191
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-05-21",
          "window": {
            "start": {
              "local": "2015-05-21T11:55:06+04:00",
              "utc": "2015-05-21T07:55:06Z",
              "ms": 1432194906122.0566
            },
            "end": {
              "local": "2015-05-21T12:43:06+04:00",
              "utc": "2015-05-21T08:43:06Z",
              "ms": 1432197786122.0566
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-05-22",
          "window": {
            "start": {
              "local": "2015-05-22T11:55:10+04:00",
              "utc": "2015-05-22T07:55:10Z",
              "ms": 1432281310113.1367
            },
            "end": {
              "local": "2015-05-22T12:43:10+04:00",
              "utc": "2015-05-22T08:43:10Z",
              "ms": 1432284190113.1367
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:10 on Thu 21 May to 04:06 on Fri 22 May.",
          "fact": "2015-05-21T00:09:56Z → 2015-05-22T00:06:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 21st, 11:55–12:43 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 0 of 48 on the 22nd.",
          "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 27910 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Thursday 21 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": "2015-05-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Thursday 21 May. Caturthī runs from 04:10 on Thu 21 May to 04:06 on Fri 22 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-05-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/aranya-gauri-vrata",
      "festival": "aranya-gauri-vrata",
      "name": "Araṇya Gaurī Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20677,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2015-05-23T04:47:22+04:00",
          "utc": "2015-05-23T00:47:22Z",
          "ms": 1432342042423.8088
        },
        "end": {
          "local": "2015-05-24T06:10:43+04:00",
          "utc": "2015-05-24T02:10:43Z",
          "ms": 1432433442547.526
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-23T04:47:22+04:00",
          "utc": "2015-05-23T00:47:22Z",
          "ms": 1432342042423.8088
        },
        "end": {
          "local": "2015-05-24T06:10:43+04:00",
          "utc": "2015-05-24T02:10:43Z",
          "ms": 1432433442547.526
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-05-23",
          "window": {
            "start": {
              "local": "2015-05-23T11:55:15+04:00",
              "utc": "2015-05-23T07:55:15Z",
              "ms": 1432367714609.5732
            },
            "end": {
              "local": "2015-05-23T12:43:15+04:00",
              "utc": "2015-05-23T08:43:15Z",
              "ms": 1432370594609.5732
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-05-24",
          "window": {
            "start": {
              "local": "2015-05-24T11:55:20+04:00",
              "utc": "2015-05-24T07:55:20Z",
              "ms": 1432454119600.6675
            },
            "end": {
              "local": "2015-05-24T12:43:20+04:00",
              "utc": "2015-05-24T08:43:20Z",
              "ms": 1432456999600.6675
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 04:47 on Sat 23 May to 06:11 on Sun 24 May.",
          "fact": "2015-05-23T00:47:22Z → 2015-05-24T02:10:43Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 23rd, 11:55–12:43 on the 24th.",
          "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 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 20677 s"
        },
        {
          "step": "ruling",
          "text": "Araṇya Gaurī Vrata, Abu Dhabi, 2015: Saturday 23 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": "2015-05-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Araṇya Gaurī Vrata 2015 falls on Saturday 23 May. Ṣaṣṭhī runs from 04:47 on Sat 23 May to 06:11 on Sun 24 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/skanda-shashthi-jyaishtha",
      "festival": "skanda-shashthi-jyaishtha",
      "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20677,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2015-05-23T04:47:22+04:00",
          "utc": "2015-05-23T00:47:22Z",
          "ms": 1432342042423.8088
        },
        "end": {
          "local": "2015-05-24T06:10:43+04:00",
          "utc": "2015-05-24T02:10:43Z",
          "ms": 1432433442547.526
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-23T04:47:22+04:00",
          "utc": "2015-05-23T00:47:22Z",
          "ms": 1432342042423.8088
        },
        "end": {
          "local": "2015-05-24T06:10:43+04:00",
          "utc": "2015-05-24T02:10:43Z",
          "ms": 1432433442547.526
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-05-23",
          "window": {
            "start": {
              "local": "2015-05-23T11:55:15+04:00",
              "utc": "2015-05-23T07:55:15Z",
              "ms": 1432367714609.5732
            },
            "end": {
              "local": "2015-05-23T12:43:15+04:00",
              "utc": "2015-05-23T08:43:15Z",
              "ms": 1432370594609.5732
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-05-24",
          "window": {
            "start": {
              "local": "2015-05-24T11:55:20+04:00",
              "utc": "2015-05-24T07:55:20Z",
              "ms": 1432454119600.6675
            },
            "end": {
              "local": "2015-05-24T12:43:20+04:00",
              "utc": "2015-05-24T08:43:20Z",
              "ms": 1432456999600.6675
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 04:47 on Sat 23 May to 06:11 on Sun 24 May.",
          "fact": "2015-05-23T00:47:22Z → 2015-05-24T02:10:43Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 23rd, 11:55–12:43 on the 24th.",
          "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 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: purvaviddha → only-day · margin 20677 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Abu Dhabi, 2015: Saturday 23 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": "2015-05-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2015 falls on Saturday 23 May. Ṣaṣṭhī runs from 04:47 on Sat 23 May to 06:11 on Sun 24 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-05-29",
      "festival": "ekadashi",
      "name": "Nirjalā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35786,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-05-28T15:31:17+04:00",
          "utc": "2015-05-28T11:31:17Z",
          "ms": 1432812676586.656
        },
        "end": {
          "local": "2015-05-29T17:37:38+04:00",
          "utc": "2015-05-29T13:37:38Z",
          "ms": 1432906657582.684
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-28T15:31:17+04:00",
          "utc": "2015-05-28T11:31:17Z",
          "ms": 1432812676586.656
        },
        "end": {
          "local": "2015-05-29T17:37:38+04:00",
          "utc": "2015-05-29T13:37:38Z",
          "ms": 1432906657582.684
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-05-28",
          "window": {
            "start": {
              "local": "2015-05-28T05:34:50+04:00",
              "utc": "2015-05-28T01:34:50Z",
              "ms": 1432776890338.2544
            },
            "end": {
              "local": "2015-05-28T05:34:50+04:00",
              "utc": "2015-05-28T01:34:50Z",
              "ms": 1432776890338.2544
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-05-29",
          "window": {
            "start": {
              "local": "2015-05-29T05:34:37+04:00",
              "utc": "2015-05-29T01:34:37Z",
              "ms": 1432863276825.0203
            },
            "end": {
              "local": "2015-05-29T05:34:37+04:00",
              "utc": "2015-05-29T01:34:37Z",
              "ms": 1432863276825.0203
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:31 on Thu 28 May to 17:38 on Fri 29 May.",
          "fact": "2015-05-28T11:31:17Z → 2015-05-29T13:37:38Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:35 on the 28th and 05:35 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 35786 s"
        },
        {
          "step": "ruling",
          "text": "Nirjalā Ekādaśī, Abu Dhabi, 2015: Friday 29 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": "2015-05-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Nirjalā Ekādaśī 2015 falls on Friday 29 May. Ekādaśī runs from 15:31 on Thu 28 May to 17:38 on Fri 29 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-05-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shri-rama-dvadashi",
      "festival": "shri-rama-dvadashi",
      "name": "Śrī Rāma Dvādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17626,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2015-05-29T17:37:38+04:00",
          "utc": "2015-05-29T13:37:38Z",
          "ms": 1432906657582.684
        },
        "end": {
          "local": "2015-05-30T19:13:30+04:00",
          "utc": "2015-05-30T15:13:30Z",
          "ms": 1432998810108.7864
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-29T17:37:38+04:00",
          "utc": "2015-05-29T13:37:38Z",
          "ms": 1432906657582.684
        },
        "end": {
          "local": "2015-05-30T19:13:30+04:00",
          "utc": "2015-05-30T15:13:30Z",
          "ms": 1432998810108.7864
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-05-29",
          "window": {
            "start": {
              "local": "2015-05-29T11:55:52+04:00",
              "utc": "2015-05-29T07:55:52Z",
              "ms": 1432886151593.1523
            },
            "end": {
              "local": "2015-05-29T12:43:52+04:00",
              "utc": "2015-05-29T08:43:52Z",
              "ms": 1432889031593.1523
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-05-30",
          "window": {
            "start": {
              "local": "2015-05-30T11:55:59+04:00",
              "utc": "2015-05-30T07:55:59Z",
              "ms": 1432972559319.5818
            },
            "end": {
              "local": "2015-05-30T12:43:59+04:00",
              "utc": "2015-05-30T08:43:59Z",
              "ms": 1432975439319.5818
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 17:38 on Fri 29 May to 19:14 on Sat 30 May.",
          "fact": "2015-05-29T13:37:38Z → 2015-05-30T15:13:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 29th, 11:56–12:44 on the 30th.",
          "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 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: purvaviddha → only-day · margin 17626 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Rāma Dvādaśī, Abu Dhabi, 2015: Saturday 30 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": "2015-05-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śrī Rāma Dvādaśī 2015 falls on Saturday 30 May. Dvādaśī runs from 17:38 on Fri 29 May to 19:14 on Sat 30 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-05-30",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-05-30",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 476,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-05-30T19:13:30+04:00",
          "utc": "2015-05-30T15:13:30Z",
          "ms": 1432998810108.7864
        },
        "end": {
          "local": "2015-05-31T20:12:53+04:00",
          "utc": "2015-05-31T16:12:53Z",
          "ms": 1433088773463.7188
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-05-30T19:13:30+04:00",
          "utc": "2015-05-30T15:13:30Z",
          "ms": 1432998810108.7864
        },
        "end": {
          "local": "2015-05-31T20:12:53+04:00",
          "utc": "2015-05-31T16:12:53Z",
          "ms": 1433088773463.7188
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-05-30",
          "window": {
            "start": {
              "local": "2015-05-30T19:05:34+04:00",
              "utc": "2015-05-30T15:05:34Z",
              "ms": 1432998334134.4011
            },
            "end": {
              "local": "2015-05-30T20:29:23+04:00",
              "utc": "2015-05-30T16:29:23Z",
              "ms": 1433003363366.8806
            }
          },
          "covered_min": 76,
          "window_min": 84,
          "qualifies": true
        },
        {
          "local_date": "2015-05-31",
          "window": {
            "start": {
              "local": "2015-05-31T19:06:02+04:00",
              "utc": "2015-05-31T15:06:02Z",
              "ms": 1433084761544.389
            },
            "end": {
              "local": "2015-05-31T20:29:46+04:00",
              "utc": "2015-05-31T16:29:46Z",
              "ms": 1433089785797.7578
            }
          },
          "covered_min": 67,
          "window_min": 84,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:14 on Sat 30 May to 20:13 on Sun 31 May.",
          "fact": "2015-05-30T15:13:30Z → 2015-05-31T16:12:53Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:06–20:29 on the 30th, 19:06–20:30 on the 31st.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 76 of 84 minutes on the 30th and 67 of 84 on the 31st.",
          "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 476 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Saturday 30 May.",
          "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": "2015-05-30",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-05-30",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Saturday 30 May. Trayodaśī runs from 19:14 on Sat 30 May to 20:13 on Sun 31 May and covers 76 of 84 minutes of pradoṣa that evening. It also reaches the next evening for 67 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/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-05-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/vata-savitri-vrata",
      "festival": "vata-savitri-vrata",
      "name": "Vaṭa Sāvitrī Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-06-02",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 239,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-06-01T20:34:07+04:00",
          "utc": "2015-06-01T16:34:07Z",
          "ms": 1433176446987.3918
        },
        "end": {
          "local": "2015-06-02T20:19:02+04:00",
          "utc": "2015-06-02T16:19:02Z",
          "ms": 1433261941872.9294
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-06-01T20:34:07+04:00",
          "utc": "2015-06-01T16:34:07Z",
          "ms": 1433176446987.3918
        },
        "end": {
          "local": "2015-06-02T20:19:02+04:00",
          "utc": "2015-06-02T16:19:02Z",
          "ms": 1433261941872.9294
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-06-01",
          "window": {
            "start": {
              "local": "2015-06-01T19:06:29+04:00",
              "utc": "2015-06-01T15:06:29Z",
              "ms": 1433171188566.6948
            },
            "end": {
              "local": "2015-06-01T20:30:08+04:00",
              "utc": "2015-06-01T16:30:08Z",
              "ms": 1433176208051.6228
            }
          },
          "covered_min": 0,
          "window_min": 84,
          "qualifies": false
        },
        {
          "local_date": "2015-06-02",
          "window": {
            "start": {
              "local": "2015-06-02T19:06:55+04:00",
              "utc": "2015-06-02T15:06:55Z",
              "ms": 1433257615177.4893
            },
            "end": {
              "local": "2015-06-02T20:30:30+04:00",
              "utc": "2015-06-02T16:30:30Z",
              "ms": 1433262630107.7397
            }
          },
          "covered_min": 72,
          "window_min": 84,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 20:34 on Mon 1 Jun to 20:19 on Tue 2 Jun.",
          "fact": "2015-06-01T16:34:07Z → 2015-06-02T16:19:02Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:06–20:30 on the 1st, 19:07–20:31 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 84 minutes on the 1st and 72 of 84 on the 2nd.",
          "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 239 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Vaṭa Sāvitrī Vrata, Abu Dhabi, 2015: Tuesday 2 June.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2015-06-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-06-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vaṭa Sāvitrī Vrata 2015 falls on Tuesday 2 June. Pūrṇimā runs from 20:34 on Mon 1 Jun to 20:19 on Tue 2 Jun and covers 72 of 84 minutes of pradoṣa that evening. It is 3 min 59 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-06-05",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-06-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17603,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-06-05T16:44:32+04:00",
          "utc": "2015-06-05T12:44:32Z",
          "ms": 1433508271520.3594
        },
        "end": {
          "local": "2015-06-06T14:55:58+04:00",
          "utc": "2015-06-06T10:55:58Z",
          "ms": 1433588158265.0632
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-06-05T16:44:32+04:00",
          "utc": "2015-06-05T12:44:32Z",
          "ms": 1433508271520.3594
        },
        "end": {
          "local": "2015-06-06T14:55:58+04:00",
          "utc": "2015-06-06T10:55:58Z",
          "ms": 1433588158265.0632
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-06-05",
          "window": {
            "start": {
              "local": "2015-06-05T21:37:54+04:00",
              "utc": "2015-06-05T17:37:54Z",
              "ms": 1433525874445.444
            },
            "end": {
              "local": "2015-06-05T21:37:54+04:00",
              "utc": "2015-06-05T17:37:54Z",
              "ms": 1433525874445.444
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-06-06",
          "window": {
            "start": {
              "local": "2015-06-06T22:27:42+04:00",
              "utc": "2015-06-06T18:27:42Z",
              "ms": 1433615262133.8647
            },
            "end": {
              "local": "2015-06-06T22:27:42+04:00",
              "utc": "2015-06-06T18:27:42Z",
              "ms": 1433615262133.8647
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 16:45 on Fri 5 Jun to 14:56 on Sat 6 Jun.",
          "fact": "2015-06-05T12:44:32Z → 2015-06-06T10:55:58Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:38 on the 5th and 22:28 on the 6th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is 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": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 17603 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Friday 5 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-06-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-06-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Friday 5 June. Caturthī runs from 16:45 on Fri 5 Jun to 14:56 on Sat 6 Jun and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-06-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-06-12",
      "festival": "ekadashi",
      "name": "Yoginī Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-06-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11463,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-06-12T02:22:30+04:00",
          "utc": "2015-06-11T22:22:30Z",
          "ms": 1434061349505.0798
        },
        "end": {
          "local": "2015-06-13T00:19:49+04:00",
          "utc": "2015-06-12T20:19:49Z",
          "ms": 1434140389399.486
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-06-12T02:22:30+04:00",
          "utc": "2015-06-11T22:22:30Z",
          "ms": 1434061349505.0798
        },
        "end": {
          "local": "2015-06-13T00:19:49+04:00",
          "utc": "2015-06-12T20:19:49Z",
          "ms": 1434140389399.486
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-06-12",
          "window": {
            "start": {
              "local": "2015-06-12T05:33:32+04:00",
              "utc": "2015-06-12T01:33:32Z",
              "ms": 1434072812162.167
            },
            "end": {
              "local": "2015-06-12T05:33:32+04:00",
              "utc": "2015-06-12T01:33:32Z",
              "ms": 1434072812162.167
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-06-13",
          "window": {
            "start": {
              "local": "2015-06-13T05:33:36+04:00",
              "utc": "2015-06-13T01:33:36Z",
              "ms": 1434159216216.8477
            },
            "end": {
              "local": "2015-06-13T05:33:36+04:00",
              "utc": "2015-06-13T01:33:36Z",
              "ms": 1434159216216.8477
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 02:22 on Fri 12 Jun to 00:20 on Sat 13 Jun.",
          "fact": "2015-06-11T22:22:30Z → 2015-06-12T20:19:49Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:34 on the 12th and 05:34 on the 13th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 12th and is not 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 11463 s"
        },
        {
          "step": "ruling",
          "text": "Yoginī Ekādaśī, Abu Dhabi, 2015: Friday 12 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": "2015-06-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-06-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Yoginī Ekādaśī 2015 falls on Friday 12 June. Ekādaśī runs from 02:22 on Fri 12 Jun to 00:20 on Sat 13 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-06-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-06-14",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-06-14",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 298,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-06-13T22:24:06+04:00",
          "utc": "2015-06-13T18:24:06Z",
          "ms": 1434219845755.0984
        },
        "end": {
          "local": "2015-06-14T20:39:29+04:00",
          "utc": "2015-06-14T16:39:29Z",
          "ms": 1434299969134.886
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-06-13T22:24:06+04:00",
          "utc": "2015-06-13T18:24:06Z",
          "ms": 1434219845755.0984
        },
        "end": {
          "local": "2015-06-14T20:39:29+04:00",
          "utc": "2015-06-14T16:39:29Z",
          "ms": 1434299969134.886
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-06-13",
          "window": {
            "start": {
              "local": "2015-06-13T19:11:14+04:00",
              "utc": "2015-06-13T15:11:14Z",
              "ms": 1434208273646.939
            },
            "end": {
              "local": "2015-06-13T20:34:13+04:00",
              "utc": "2015-06-13T16:34:13Z",
              "ms": 1434213253341.942
            }
          },
          "covered_min": 0,
          "window_min": 83,
          "qualifies": false
        },
        {
          "local_date": "2015-06-14",
          "window": {
            "start": {
              "local": "2015-06-14T19:11:33+04:00",
              "utc": "2015-06-14T15:11:33Z",
              "ms": 1434294693322.5974
            },
            "end": {
              "local": "2015-06-14T20:34:31+04:00",
              "utc": "2015-06-14T16:34:31Z",
              "ms": 1434299671222.0654
            }
          },
          "covered_min": 83,
          "window_min": 83,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 22:24 on Sat 13 Jun to 20:39 on Sun 14 Jun.",
          "fact": "2015-06-13T18:24:06Z → 2015-06-14T16:39:29Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:11–20:34 on the 13th, 19:12–20:35 on the 14th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 83 minutes on the 13th and 83 of 83 on the 14th.",
          "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 298 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Sunday 14 June.",
          "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": "2015-06-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-06-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Sunday 14 June. Trayodaśī runs from 22:24 on Sat 13 Jun to 20:39 on Sun 14 Jun and covers all of pradoṣa that evening. It is 4 min 58 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-06-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-06-14",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-06-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11951,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-06-14T20:39:29+04:00",
          "utc": "2015-06-14T16:39:29Z",
          "ms": 1434299969134.886
        },
        "end": {
          "local": "2015-06-15T19:11:14+04:00",
          "utc": "2015-06-15T15:11:14Z",
          "ms": 1434381074279.481
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-06-14T20:39:29+04:00",
          "utc": "2015-06-14T16:39:29Z",
          "ms": 1434299969134.886
        },
        "end": {
          "local": "2015-06-15T19:11:14+04:00",
          "utc": "2015-06-15T15:11:14Z",
          "ms": 1434381074279.481
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-06-14",
          "window": {
            "start": {
              "local": "2015-06-14T23:58:40+04:00",
              "utc": "2015-06-14T19:58:40Z",
              "ms": 1434311920445.6025
            },
            "end": {
              "local": "2015-06-15T00:46:40+04:00",
              "utc": "2015-06-14T20:46:40Z",
              "ms": 1434314800445.6025
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-06-15",
          "window": {
            "start": {
              "local": "2015-06-15T23:58:54+04:00",
              "utc": "2015-06-15T19:58:54Z",
              "ms": 1434398333525.7822
            },
            "end": {
              "local": "2015-06-16T00:46:54+04:00",
              "utc": "2015-06-15T20:46:54Z",
              "ms": 1434401213525.7822
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 20:39 on Sun 14 Jun to 19:11 on Mon 15 Jun.",
          "fact": "2015-06-14T16:39:29Z → 2015-06-15T15:11:14Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:59–00:47 on the 14th, 23:59–00:47 on the 15th.",
          "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 14th and 0 of 48 on the 15th.",
          "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 11951 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Sunday 14 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-06-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-06-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Sunday 14 June. Caturdaśī runs from 20:39 on Sun 14 Jun to 19:11 on Mon 15 Jun and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-06-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-06-20",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-06-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18689,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-06-19T17:59:10+04:00",
          "utc": "2015-06-19T13:59:10Z",
          "ms": 1434722349928.7256
        },
        "end": {
          "local": "2015-06-20T19:12:14+04:00",
          "utc": "2015-06-20T15:12:14Z",
          "ms": 1434813134347.2307
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": true,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-06-19T17:59:10+04:00",
          "utc": "2015-06-19T13:59:10Z",
          "ms": 1434722349928.7256
        },
        "end": {
          "local": "2015-06-20T19:12:14+04:00",
          "utc": "2015-06-20T15:12:14Z",
          "ms": 1434813134347.2307
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-06-19",
          "window": {
            "start": {
              "local": "2015-06-19T11:59:41+04:00",
              "utc": "2015-06-19T07:59:41Z",
              "ms": 1434700781072.6938
            },
            "end": {
              "local": "2015-06-19T12:47:41+04:00",
              "utc": "2015-06-19T08:47:41Z",
              "ms": 1434703661072.6938
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-06-20",
          "window": {
            "start": {
              "local": "2015-06-20T11:59:54+04:00",
              "utc": "2015-06-20T07:59:54Z",
              "ms": 1434787193962.769
            },
            "end": {
              "local": "2015-06-20T12:47:54+04:00",
              "utc": "2015-06-20T08:47:54Z",
              "ms": 1434790073962.769
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:59 on Fri 19 Jun to 19:12 on Sat 20 Jun.",
          "fact": "2015-06-19T13:59:10Z → 2015-06-20T15:12:14Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 19th, 12:00–12:48 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 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 midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 18689 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Saturday 20 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-06-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-06-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Saturday 20 June. Caturthī runs from 17:59 on Fri 19 Jun to 19:12 on Sat 20 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-06-20",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-06-28",
      "festival": "ekadashi",
      "name": "Śukla Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-06-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9360,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-06-27T08:12:16+04:00",
          "utc": "2015-06-27T04:12:16Z",
          "ms": 1435378335914.4087
        },
        "end": {
          "local": "2015-06-28T09:15:04+04:00",
          "utc": "2015-06-28T05:15:04Z",
          "ms": 1435468503971.6235
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": true,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-06-27T08:12:16+04:00",
          "utc": "2015-06-27T04:12:16Z",
          "ms": 1435378335914.4087
        },
        "end": {
          "local": "2015-06-28T09:15:04+04:00",
          "utc": "2015-06-28T05:15:04Z",
          "ms": 1435468503971.6235
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-06-27",
          "window": {
            "start": {
              "local": "2015-06-27T05:36:16+04:00",
              "utc": "2015-06-27T01:36:16Z",
              "ms": 1435368976320.2239
            },
            "end": {
              "local": "2015-06-27T05:36:16+04:00",
              "utc": "2015-06-27T01:36:16Z",
              "ms": 1435368976320.2239
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-06-28",
          "window": {
            "start": {
              "local": "2015-06-28T05:36:34+04:00",
              "utc": "2015-06-28T01:36:34Z",
              "ms": 1435455394133.1863
            },
            "end": {
              "local": "2015-06-28T05:36:34+04:00",
              "utc": "2015-06-28T01:36:34Z",
              "ms": 1435455394133.1863
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:12 on Sat 27 Jun to 09:15 on Sun 28 Jun.",
          "fact": "2015-06-27T04:12:16Z → 2015-06-28T05:15:04Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:36 on the 27th and 05:37 on the 28th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 27th and is on the 28th.",
          "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 9360 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Ekādaśī, Abu Dhabi, 2015: Sunday 28 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": "2015-06-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-06-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Ekādaśī 2015 falls on Sunday 28 June. Ekādaśī runs from 08:12 on Sat 27 Jun to 09:15 on Sun 28 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-06-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-06-29",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-06-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34884,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-06-29T09:33:16+04:00",
          "utc": "2015-06-29T05:33:16Z",
          "ms": 1435555996421.81
        },
        "end": {
          "local": "2015-06-30T09:07:02+04:00",
          "utc": "2015-06-30T05:07:02Z",
          "ms": 1435640822379.7358
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": true,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-06-29T09:33:16+04:00",
          "utc": "2015-06-29T05:33:16Z",
          "ms": 1435555996421.81
        },
        "end": {
          "local": "2015-06-30T09:07:02+04:00",
          "utc": "2015-06-30T05:07:02Z",
          "ms": 1435640822379.7358
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-06-29",
          "window": {
            "start": {
              "local": "2015-06-29T19:14:40+04:00",
              "utc": "2015-06-29T15:14:40Z",
              "ms": 1435590880097.5308
            },
            "end": {
              "local": "2015-06-29T20:37:40+04:00",
              "utc": "2015-06-29T16:37:40Z",
              "ms": 1435595860334.6326
            }
          },
          "covered_min": 83,
          "window_min": 83,
          "qualifies": true
        },
        {
          "local_date": "2015-06-30",
          "window": {
            "start": {
              "local": "2015-06-30T19:14:44+04:00",
              "utc": "2015-06-30T15:14:44Z",
              "ms": 1435677284228.1902
            },
            "end": {
              "local": "2015-06-30T20:37:46+04:00",
              "utc": "2015-06-30T16:37:46Z",
              "ms": 1435682266431.8467
            }
          },
          "covered_min": 0,
          "window_min": 83,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 09:33 on Mon 29 Jun to 09:07 on Tue 30 Jun.",
          "fact": "2015-06-29T05:33:16Z → 2015-06-30T05:07:02Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:15–20:38 on the 29th, 19:15–20:38 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 83 of 83 minutes on the 29th and 0 of 83 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 34884 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Monday 29 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": "2015-06-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-06-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Monday 29 June. Trayodaśī runs from 09:33 on Mon 29 Jun to 09:07 on Tue 30 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-06-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-07-04",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-04",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 4850,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-07-04T23:14:15+04:00",
          "utc": "2015-07-04T19:14:15Z",
          "ms": 1436037255459.6545
        },
        "end": {
          "local": "2015-07-05T20:37:43+04:00",
          "utc": "2015-07-05T16:37:43Z",
          "ms": 1436114262700.06
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": true,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-04T23:14:15+04:00",
          "utc": "2015-07-04T19:14:15Z",
          "ms": 1436037255459.6545
        },
        "end": {
          "local": "2015-07-05T20:37:43+04:00",
          "utc": "2015-07-05T16:37:43Z",
          "ms": 1436114262700.06
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-07-04",
          "window": {
            "start": {
              "local": "2015-07-04T21:11:41+04:00",
              "utc": "2015-07-04T17:11:41Z",
              "ms": 1436029901403.761
            },
            "end": {
              "local": "2015-07-04T21:11:41+04:00",
              "utc": "2015-07-04T17:11:41Z",
              "ms": 1436029901403.761
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-07-05",
          "window": {
            "start": {
              "local": "2015-07-05T21:58:33+04:00",
              "utc": "2015-07-05T17:58:33Z",
              "ms": 1436119112998.2947
            },
            "end": {
              "local": "2015-07-05T21:58:33+04:00",
              "utc": "2015-07-05T17:58:33Z",
              "ms": 1436119112998.2947
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 23:14 on Sat 4 Jul to 20:38 on Sun 5 Jul.",
          "fact": "2015-07-04T19:14:15Z → 2015-07-05T16:37:43Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:12 on the 4th and 21:59 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 not on the 5th.",
          "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 4850 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Saturday 4 July.",
          "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": "2015-07-04",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-04",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Saturday 4 July. Caturthī runs from 23:14 on Sat 4 Jul to 20:38 on Sun 5 Jul, and is current at moonrise on neither day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-07-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-07-12",
      "festival": "ekadashi",
      "name": "Kṛṣṇa Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4288,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-07-11T08:08:00+04:00",
          "utc": "2015-07-11T04:08:00Z",
          "ms": 1436587679615.4001
        },
        "end": {
          "local": "2015-07-12T06:53:15+04:00",
          "utc": "2015-07-12T02:53:15Z",
          "ms": 1436669594683.6294
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": true,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-11T08:08:00+04:00",
          "utc": "2015-07-11T04:08:00Z",
          "ms": 1436587679615.4001
        },
        "end": {
          "local": "2015-07-12T06:53:15+04:00",
          "utc": "2015-07-12T02:53:15Z",
          "ms": 1436669594683.6294
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-07-11",
          "window": {
            "start": {
              "local": "2015-07-11T05:41:21+04:00",
              "utc": "2015-07-11T01:41:21Z",
              "ms": 1436578880780.241
            },
            "end": {
              "local": "2015-07-11T05:41:21+04:00",
              "utc": "2015-07-11T01:41:21Z",
              "ms": 1436578880780.241
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-07-12",
          "window": {
            "start": {
              "local": "2015-07-12T05:41:46+04:00",
              "utc": "2015-07-12T01:41:46Z",
              "ms": 1436665306338.6133
            },
            "end": {
              "local": "2015-07-12T05:41:46+04:00",
              "utc": "2015-07-12T01:41:46Z",
              "ms": 1436665306338.6133
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:08 on Sat 11 Jul to 06:53 on Sun 12 Jul.",
          "fact": "2015-07-11T04:08:00Z → 2015-07-12T02:53:15Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:41 on the 11th and 05:42 on the 12th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 11th and is on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 4288 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Ekādaśī, Abu Dhabi, 2015: Sunday 12 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": "2015-07-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Ekādaśī 2015 falls on Sunday 12 July. Ekādaśī runs from 08:08 on Sat 11 Jul to 06:53 on Sun 12 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-07-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-07-13",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31383,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-07-13T05:56:38+04:00",
          "utc": "2015-07-13T01:56:38Z",
          "ms": 1436752597688.2615
        },
        "end": {
          "local": "2015-07-14T05:20:44+04:00",
          "utc": "2015-07-14T01:20:44Z",
          "ms": 1436836844045.2988
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": true,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-13T05:56:38+04:00",
          "utc": "2015-07-13T01:56:38Z",
          "ms": 1436752597688.2615
        },
        "end": {
          "local": "2015-07-14T05:20:44+04:00",
          "utc": "2015-07-14T01:20:44Z",
          "ms": 1436836844045.2988
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-07-12",
          "window": {
            "start": {
              "local": "2015-07-12T19:14:01+04:00",
              "utc": "2015-07-12T15:14:01Z",
              "ms": 1436714041475.0847
            },
            "end": {
              "local": "2015-07-12T20:37:47+04:00",
              "utc": "2015-07-12T16:37:47Z",
              "ms": 1436719066911.1326
            }
          },
          "covered_min": 0,
          "window_min": 84,
          "qualifies": false
        },
        {
          "local_date": "2015-07-13",
          "window": {
            "start": {
              "local": "2015-07-13T19:13:50+04:00",
              "utc": "2015-07-13T15:13:50Z",
              "ms": 1436800430169.1604
            },
            "end": {
              "local": "2015-07-13T20:37:41+04:00",
              "utc": "2015-07-13T16:37:41Z",
              "ms": 1436805460609.1533
            }
          },
          "covered_min": 84,
          "window_min": 84,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 05:57 on Mon 13 Jul to 05:21 on Tue 14 Jul.",
          "fact": "2015-07-13T01:56:38Z → 2015-07-14T01:20:44Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:14–20:38 on the 12th, 19:14–20:38 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 84 minutes on the 12th and 84 of 84 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 31383 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Monday 13 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": "2015-07-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Monday 13 July. Trayodaśī runs from 05:57 on Mon 13 Jul to 05:21 on Tue 14 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-07-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-07-14",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15388,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-07-14T05:20:44+04:00",
          "utc": "2015-07-14T01:20:44Z",
          "ms": 1436836844045.2988
        },
        "end": {
          "local": "2015-07-15T05:08:49+04:00",
          "utc": "2015-07-15T01:08:49Z",
          "ms": 1436922529041.0635
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": true,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-14T05:20:44+04:00",
          "utc": "2015-07-14T01:20:44Z",
          "ms": 1436836844045.2988
        },
        "end": {
          "local": "2015-07-15T05:08:49+04:00",
          "utc": "2015-07-15T01:08:49Z",
          "ms": 1436922529041.0635
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-07-13",
          "window": {
            "start": {
              "local": "2015-07-14T00:04:14+04:00",
              "utc": "2015-07-13T20:04:14Z",
              "ms": 1436817854319.1338
            },
            "end": {
              "local": "2015-07-14T00:52:14+04:00",
              "utc": "2015-07-13T20:52:14Z",
              "ms": 1436820734319.1338
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-07-14",
          "window": {
            "start": {
              "local": "2015-07-15T00:04:21+04:00",
              "utc": "2015-07-14T20:04:21Z",
              "ms": 1436904261303.7815
            },
            "end": {
              "local": "2015-07-15T00:52:21+04:00",
              "utc": "2015-07-14T20:52:21Z",
              "ms": 1436907141303.7815
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:21 on Tue 14 Jul to 05:09 on Wed 15 Jul.",
          "fact": "2015-07-14T01:20:44Z → 2015-07-15T01:08:49Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:04–00:52 on the 13th, 00:04–00:52 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 15388 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Tuesday 14 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": "2015-07-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Tuesday 14 July. Caturdaśī runs from 05:21 on Tue 14 Jul to 05:09 on Wed 15 Jul and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-07-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/rathayatra",
      "festival": "rathayatra",
      "name": "Rathayātrā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16594,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2015-07-17T06:10:15+04:00",
          "utc": "2015-07-17T02:10:15Z",
          "ms": 1437099015214.3674
        },
        "end": {
          "local": "2015-07-18T07:27:57+04:00",
          "utc": "2015-07-18T03:27:57Z",
          "ms": 1437190076833.5986
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-17T06:10:15+04:00",
          "utc": "2015-07-17T02:10:15Z",
          "ms": 1437099015214.3674
        },
        "end": {
          "local": "2015-07-18T07:27:57+04:00",
          "utc": "2015-07-18T03:27:57Z",
          "ms": 1437190076833.5986
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-07-17",
          "window": {
            "start": {
              "local": "2015-07-17T12:04:26+04:00",
              "utc": "2015-07-17T08:04:26Z",
              "ms": 1437120265645.38
            },
            "end": {
              "local": "2015-07-17T12:52:26+04:00",
              "utc": "2015-07-17T08:52:26Z",
              "ms": 1437123145645.38
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-07-18",
          "window": {
            "start": {
              "local": "2015-07-18T12:04:30+04:00",
              "utc": "2015-07-18T08:04:30Z",
              "ms": 1437206670478.5293
            },
            "end": {
              "local": "2015-07-18T12:52:30+04:00",
              "utc": "2015-07-18T08:52:30Z",
              "ms": 1437209550478.5293
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 06:10 on Fri 17 Jul to 07:28 on Sat 18 Jul.",
          "fact": "2015-07-17T02:10:15Z → 2015-07-18T03:27:57Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 17th, 12:05–12:53 on the 18th.",
          "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 17th and 0 of 48 on the 18th.",
          "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 16594 s"
        },
        {
          "step": "ruling",
          "text": "Rathayātrā, Abu Dhabi, 2015: Friday 17 July.",
          "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": "2015-07-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Rathayātrā 2015 falls on Friday 17 July. Dvitīyā runs from 06:10 on Fri 17 Jul to 07:28 on Sat 18 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-07-19",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2066,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-07-19T09:16:12+04:00",
          "utc": "2015-07-19T05:16:12Z",
          "ms": 1437282972392.1099
        },
        "end": {
          "local": "2015-07-20T11:30:12+04:00",
          "utc": "2015-07-20T07:30:12Z",
          "ms": 1437377412446.3137
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-19T09:16:12+04:00",
          "utc": "2015-07-19T05:16:12Z",
          "ms": 1437282972392.1099
        },
        "end": {
          "local": "2015-07-20T11:30:12+04:00",
          "utc": "2015-07-20T07:30:12Z",
          "ms": 1437377412446.3137
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-07-19",
          "window": {
            "start": {
              "local": "2015-07-19T12:04:35+04:00",
              "utc": "2015-07-19T08:04:35Z",
              "ms": 1437293074770.5977
            },
            "end": {
              "local": "2015-07-19T12:52:35+04:00",
              "utc": "2015-07-19T08:52:35Z",
              "ms": 1437295954770.5977
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-07-20",
          "window": {
            "start": {
              "local": "2015-07-20T12:04:39+04:00",
              "utc": "2015-07-20T08:04:39Z",
              "ms": 1437379478508.4885
            },
            "end": {
              "local": "2015-07-20T12:52:39+04:00",
              "utc": "2015-07-20T08:52:39Z",
              "ms": 1437382358508.4885
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 09:16 on Sun 19 Jul to 11:30 on Mon 20 Jul.",
          "fact": "2015-07-19T05:16:12Z → 2015-07-20T07:30:12Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 19th, 12:05–12:53 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 2066 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Sunday 19 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": "2015-07-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-19",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Sunday 19 July. Caturthī runs from 09:16 on Sun 19 Jul to 11:30 on Mon 20 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-07-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/skanda-panchami",
      "festival": "skanda-panchami",
      "name": "Skanda Pañcamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2066,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2015-07-20T11:30:12+04:00",
          "utc": "2015-07-20T07:30:12Z",
          "ms": 1437377412446.3137
        },
        "end": {
          "local": "2015-07-21T14:01:02+04:00",
          "utc": "2015-07-21T10:01:02Z",
          "ms": 1437472862230.4802
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-20T11:30:12+04:00",
          "utc": "2015-07-20T07:30:12Z",
          "ms": 1437377412446.3137
        },
        "end": {
          "local": "2015-07-21T14:01:02+04:00",
          "utc": "2015-07-21T10:01:02Z",
          "ms": 1437472862230.4802
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-07-20",
          "window": {
            "start": {
              "local": "2015-07-20T12:04:39+04:00",
              "utc": "2015-07-20T08:04:39Z",
              "ms": 1437379478508.4885
            },
            "end": {
              "local": "2015-07-20T12:52:39+04:00",
              "utc": "2015-07-20T08:52:39Z",
              "ms": 1437382358508.4885
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-07-21",
          "window": {
            "start": {
              "local": "2015-07-21T12:04:42+04:00",
              "utc": "2015-07-21T08:04:42Z",
              "ms": 1437465881680.4126
            },
            "end": {
              "local": "2015-07-21T12:52:42+04:00",
              "utc": "2015-07-21T08:52:42Z",
              "ms": 1437468761680.4126
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 11:30 on Mon 20 Jul to 14:01 on Tue 21 Jul.",
          "fact": "2015-07-20T07:30:12Z → 2015-07-21T10:01:02Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 20th, 12:05–12:53 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 48 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Paraviddhā: the second is taken.",
          "fact": "priority: paraviddha → paraviddha · margin 2066 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Pañcamī, Abu Dhabi, 2015: Tuesday 21 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "skanda-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Skanda pancami (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-07-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Skanda Pañcamī 2015 falls on Tuesday 21 July. Pañcamī runs from 11:30 on Mon 20 Jul to 14:01 on Tue 21 Jul and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vivasvat-saptami",
      "festival": "vivasvat-saptami",
      "name": "Vivasvat Saptamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13401,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2015-07-22T16:36:05+04:00",
          "utc": "2015-07-22T12:36:05Z",
          "ms": 1437568565018.6106
        },
        "end": {
          "local": "2015-07-23T19:00:29+04:00",
          "utc": "2015-07-23T15:00:29Z",
          "ms": 1437663629039.978
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-22T16:36:05+04:00",
          "utc": "2015-07-22T12:36:05Z",
          "ms": 1437568565018.6106
        },
        "end": {
          "local": "2015-07-23T19:00:29+04:00",
          "utc": "2015-07-23T15:00:29Z",
          "ms": 1437663629039.978
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-07-22",
          "window": {
            "start": {
              "local": "2015-07-22T12:04:44+04:00",
              "utc": "2015-07-22T08:04:44Z",
              "ms": 1437552284275.883
            },
            "end": {
              "local": "2015-07-22T12:52:44+04:00",
              "utc": "2015-07-22T08:52:44Z",
              "ms": 1437555164275.883
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-07-23",
          "window": {
            "start": {
              "local": "2015-07-23T12:04:46+04:00",
              "utc": "2015-07-23T08:04:46Z",
              "ms": 1437638686285.7063
            },
            "end": {
              "local": "2015-07-23T12:52:46+04:00",
              "utc": "2015-07-23T08:52:46Z",
              "ms": 1437641566285.7063
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 16:36 on Wed 22 Jul to 19:00 on Thu 23 Jul.",
          "fact": "2015-07-22T12:36:05Z → 2015-07-23T15:00:29Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 22nd, 12:05–12:53 on the 23rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 13401 s"
        },
        {
          "step": "ruling",
          "text": "Vivasvat Saptamī, Abu Dhabi, 2015: Thursday 23 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vivasvat-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Vivasvat saptami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-07-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vivasvat Saptamī 2015 falls on Thursday 23 July. Saptamī runs from 16:36 on Wed 22 Jul to 19:00 on Thu 23 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-07-27",
      "festival": "ekadashi",
      "name": "Hariśayanī Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24802,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-07-26T22:55:13+04:00",
          "utc": "2015-07-26T18:55:13Z",
          "ms": 1437936913145.7183
        },
        "end": {
          "local": "2015-07-27T22:40:38+04:00",
          "utc": "2015-07-27T18:40:38Z",
          "ms": 1438022438231.7197
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-26T22:55:13+04:00",
          "utc": "2015-07-26T18:55:13Z",
          "ms": 1437936913145.7183
        },
        "end": {
          "local": "2015-07-27T22:40:38+04:00",
          "utc": "2015-07-27T18:40:38Z",
          "ms": 1438022438231.7197
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-07-27",
          "window": {
            "start": {
              "local": "2015-07-27T05:48:35+04:00",
              "utc": "2015-07-27T01:48:35Z",
              "ms": 1437961714924.272
            },
            "end": {
              "local": "2015-07-27T05:48:35+04:00",
              "utc": "2015-07-27T01:48:35Z",
              "ms": 1437961714924.272
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-07-28",
          "window": {
            "start": {
              "local": "2015-07-28T05:49:03+04:00",
              "utc": "2015-07-28T01:49:03Z",
              "ms": 1438048142665.1511
            },
            "end": {
              "local": "2015-07-28T05:49:03+04:00",
              "utc": "2015-07-28T01:49:03Z",
              "ms": 1438048142665.1511
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 22:55 on Sun 26 Jul to 22:41 on Mon 27 Jul.",
          "fact": "2015-07-26T18:55:13Z → 2015-07-27T18:40:38Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:49 on the 27th and 05:49 on the 28th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 27th and is not on the 28th.",
          "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 24802 s"
        },
        {
          "step": "ruling",
          "text": "Hariśayanī Ekādaśī, Abu Dhabi, 2015: Monday 27 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": "2015-07-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Hariśayanī Ekādaśī 2015 falls on Monday 27 July. Ekādaśī runs from 22:55 on Sun 26 Jul to 22:41 on Mon 27 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-07-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-07-29",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2485,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-07-28T21:37:58+04:00",
          "utc": "2015-07-28T17:37:58Z",
          "ms": 1438105077505.9294
        },
        "end": {
          "local": "2015-07-29T19:52:11+04:00",
          "utc": "2015-07-29T15:52:11Z",
          "ms": 1438185131390.007
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-28T21:37:58+04:00",
          "utc": "2015-07-28T17:37:58Z",
          "ms": 1438105077505.9294
        },
        "end": {
          "local": "2015-07-29T19:52:11+04:00",
          "utc": "2015-07-29T15:52:11Z",
          "ms": 1438185131390.007
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-07-28",
          "window": {
            "start": {
              "local": "2015-07-28T19:08:32+04:00",
              "utc": "2015-07-28T15:08:32Z",
              "ms": 1438096111976.5837
            },
            "end": {
              "local": "2015-07-28T20:34:00+04:00",
              "utc": "2015-07-28T16:34:00Z",
              "ms": 1438101239760.013
            }
          },
          "covered_min": 0,
          "window_min": 85,
          "qualifies": false
        },
        {
          "local_date": "2015-07-29",
          "window": {
            "start": {
              "local": "2015-07-29T19:08:01+04:00",
              "utc": "2015-07-29T15:08:01Z",
              "ms": 1438182481046.0657
            },
            "end": {
              "local": "2015-07-29T20:33:37+04:00",
              "utc": "2015-07-29T16:33:37Z",
              "ms": 1438187616636.1882
            }
          },
          "covered_min": 44,
          "window_min": 86,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 21:38 on Tue 28 Jul to 19:52 on Wed 29 Jul.",
          "fact": "2015-07-28T17:37:58Z → 2015-07-29T15:52:11Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:09–20:34 on the 28th, 19:08–20:34 on the 29th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 85 minutes on the 28th and 44 of 86 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2485 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Wednesday 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": "2015-07-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Wednesday 29 July. Trayodaśī runs from 21:38 on Tue 28 Jul to 19:52 on Wed 29 Jul and covers 44 of 86 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-07-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/kokila-vrata",
      "festival": "kokila-vrata",
      "name": "Kokilā Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3772,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-07-30T17:30:51+04:00",
          "utc": "2015-07-30T13:30:51Z",
          "ms": 1438263051204.7646
        },
        "end": {
          "local": "2015-07-31T14:42:54+04:00",
          "utc": "2015-07-31T10:42:54Z",
          "ms": 1438339374216.6284
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-30T17:30:51+04:00",
          "utc": "2015-07-30T13:30:51Z",
          "ms": 1438263051204.7646
        },
        "end": {
          "local": "2015-07-31T14:42:54+04:00",
          "utc": "2015-07-31T10:42:54Z",
          "ms": 1438339374216.6284
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2015-07-30",
          "window": {
            "start": {
              "local": "2015-07-30T16:27:59+04:00",
              "utc": "2015-07-30T12:27:59Z",
              "ms": 1438259278763.2795
            },
            "end": {
              "local": "2015-07-30T19:07:29+04:00",
              "utc": "2015-07-30T15:07:29Z",
              "ms": 1438268848961.1033
            }
          },
          "covered_min": 97,
          "window_min": 160,
          "qualifies": true
        },
        {
          "local_date": "2015-07-31",
          "window": {
            "start": {
              "local": "2015-07-31T16:27:38+04:00",
              "utc": "2015-07-31T12:27:38Z",
              "ms": 1438345657693.5056
            },
            "end": {
              "local": "2015-07-31T19:06:56+04:00",
              "utc": "2015-07-31T15:06:56Z",
              "ms": 1438355215738.798
            }
          },
          "covered_min": 0,
          "window_min": 159,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:31 on Thu 30 Jul to 14:43 on Fri 31 Jul.",
          "fact": "2015-07-30T13:30:51Z → 2015-07-31T10:42:54Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:28–19:07 on the 30th, 16:28–19:07 on the 31st.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 97 of 160 minutes on the 30th and 0 of 159 on the 31st.",
          "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 3772 s"
        },
        {
          "step": "ruling",
          "text": "Kokilā Vrata, Abu Dhabi, 2015: Thursday 30 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": "2015-07-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kokilā Vrata 2015 falls on Thursday 30 July. Pūrṇimā runs from 17:31 on Thu 30 Jul to 14:43 on Fri 31 Jul and covers 97 of 160 minutes of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/shiva-shayanotsava",
      "festival": "shiva-shayanotsava",
      "name": "Śiva Śayanotsava",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5798,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-07-30T17:30:51+04:00",
          "utc": "2015-07-30T13:30:51Z",
          "ms": 1438263051204.7646
        },
        "end": {
          "local": "2015-07-31T14:42:54+04:00",
          "utc": "2015-07-31T10:42:54Z",
          "ms": 1438339374216.6284
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-30T17:30:51+04:00",
          "utc": "2015-07-30T13:30:51Z",
          "ms": 1438263051204.7646
        },
        "end": {
          "local": "2015-07-31T14:42:54+04:00",
          "utc": "2015-07-31T10:42:54Z",
          "ms": 1438339374216.6284
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-07-30",
          "window": {
            "start": {
              "local": "2015-07-30T19:07:29+04:00",
              "utc": "2015-07-30T15:07:29Z",
              "ms": 1438268848961.1033
            },
            "end": {
              "local": "2015-07-30T20:33:13+04:00",
              "utc": "2015-07-30T16:33:13Z",
              "ms": 1438273992501.2676
            }
          },
          "covered_min": 86,
          "window_min": 86,
          "qualifies": true
        },
        {
          "local_date": "2015-07-31",
          "window": {
            "start": {
              "local": "2015-07-31T19:06:56+04:00",
              "utc": "2015-07-31T15:06:56Z",
              "ms": 1438355215738.798
            },
            "end": {
              "local": "2015-07-31T20:32:47+04:00",
              "utc": "2015-07-31T16:32:47Z",
              "ms": 1438360367368.7341
            }
          },
          "covered_min": 0,
          "window_min": 86,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:31 on Thu 30 Jul to 14:43 on Fri 31 Jul.",
          "fact": "2015-07-30T13:30:51Z → 2015-07-31T10:42:54Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:07–20:33 on the 30th, 19:07–20:33 on the 31st.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 86 of 86 minutes on the 30th and 0 of 86 on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5798 s"
        },
        {
          "step": "ruling",
          "text": "Śiva Śayanotsava, Abu Dhabi, 2015: Thursday 30 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shiva-shayanotsava",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-07-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śiva Śayanotsava 2015 falls on Thursday 30 July. Pūrṇimā runs from 17:31 on Thu 30 Jul to 14:43 on Fri 31 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vyasa-puja",
      "festival": "vyasa-puja",
      "name": "Vyāsa Pūjā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22391,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-07-30T17:30:51+04:00",
          "utc": "2015-07-30T13:30:51Z",
          "ms": 1438263051204.7646
        },
        "end": {
          "local": "2015-07-31T14:42:54+04:00",
          "utc": "2015-07-31T10:42:54Z",
          "ms": 1438339374216.6284
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-30T17:30:51+04:00",
          "utc": "2015-07-30T13:30:51Z",
          "ms": 1438263051204.7646
        },
        "end": {
          "local": "2015-07-31T14:42:54+04:00",
          "utc": "2015-07-31T10:42:54Z",
          "ms": 1438339374216.6284
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "2015-07-30",
          "window": {
            "start": {
              "local": "2015-07-30T05:49:58+04:00",
              "utc": "2015-07-30T01:49:58Z",
              "ms": 1438220997971.9841
            },
            "end": {
              "local": "2015-07-30T08:29:28+04:00",
              "utc": "2015-07-30T04:29:28Z",
              "ms": 1438230568169.8079
            }
          },
          "covered_min": 0,
          "window_min": 160,
          "qualifies": false
        },
        {
          "local_date": "2015-07-31",
          "window": {
            "start": {
              "local": "2015-07-31T05:50:26+04:00",
              "utc": "2015-07-31T01:50:26Z",
              "ms": 1438307425512.3352
            },
            "end": {
              "local": "2015-07-31T08:29:44+04:00",
              "utc": "2015-07-31T04:29:44Z",
              "ms": 1438316983557.6277
            }
          },
          "covered_min": 159,
          "window_min": 159,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:31 on Thu 30 Jul to 14:43 on Fri 31 Jul.",
          "fact": "2015-07-30T13:30:51Z → 2015-07-31T10:42:54Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:50–08:29 on the 30th, 05:50–08:30 on the 31st.",
          "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 0 of 160 minutes on the 30th and 159 of 159 on the 31st.",
          "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 22391 s"
        },
        {
          "step": "ruling",
          "text": "Vyāsa Pūjā, Abu Dhabi, 2015: Friday 31 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": "2015-07-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vyāsa Pūjā 2015 falls on Friday 31 July. Pūrṇimā runs from 17:31 on Thu 30 Jul to 14:43 on Fri 31 Jul and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/guru-purnima",
      "festival": "guru-purnima",
      "name": "Guru Pūrṇimā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-07-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6614,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-07-30T17:30:51+04:00",
          "utc": "2015-07-30T13:30:51Z",
          "ms": 1438263051204.7646
        },
        "end": {
          "local": "2015-07-31T14:42:54+04:00",
          "utc": "2015-07-31T10:42:54Z",
          "ms": 1438339374216.6284
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-07-30T17:30:51+04:00",
          "utc": "2015-07-30T13:30:51Z",
          "ms": 1438263051204.7646
        },
        "end": {
          "local": "2015-07-31T14:42:54+04:00",
          "utc": "2015-07-31T10:42:54Z",
          "ms": 1438339374216.6284
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-07-30",
          "window": {
            "start": {
              "local": "2015-07-30T12:04:43+04:00",
              "utc": "2015-07-30T08:04:43Z",
              "ms": 1438243483466.5437
            },
            "end": {
              "local": "2015-07-30T12:52:43+04:00",
              "utc": "2015-07-30T08:52:43Z",
              "ms": 1438246363466.5437
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-07-31",
          "window": {
            "start": {
              "local": "2015-07-31T12:04:41+04:00",
              "utc": "2015-07-31T08:04:41Z",
              "ms": 1438329880625.5667
            },
            "end": {
              "local": "2015-07-31T12:52:41+04:00",
              "utc": "2015-07-31T08:52:41Z",
              "ms": 1438332760625.5667
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:31 on Thu 30 Jul to 14:43 on Fri 31 Jul.",
          "fact": "2015-07-30T13:30:51Z → 2015-07-31T10:42:54Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 30th, 12:05–12:53 on the 31st.",
          "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 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: paraviddha → only-day · margin 6614 s"
        },
        {
          "step": "ruling",
          "text": "Guru Pūrṇimā, Abu Dhabi, 2015: Friday 31 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": "2015-07-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-07-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Guru Pūrṇimā 2015 falls on Friday 31 July. Pūrṇimā runs from 17:31 on Thu 30 Jul to 14:43 on Fri 31 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ashunya-shayana-vrata-ashadha",
      "festival": "ashunya-shayana-vrata-ashadha",
      "name": "Aśūnya Śayana Vrata (Āṣāḍha)",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29620,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2015-08-01T11:37:51+04:00",
          "utc": "2015-08-01T07:37:51Z",
          "ms": 1438414670927.9167
        },
        "end": {
          "local": "2015-08-02T08:25:05+04:00",
          "utc": "2015-08-02T04:25:05Z",
          "ms": 1438489505170.9973
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-01T11:37:51+04:00",
          "utc": "2015-08-01T07:37:51Z",
          "ms": 1438414670927.9167
        },
        "end": {
          "local": "2015-08-02T08:25:05+04:00",
          "utc": "2015-08-02T04:25:05Z",
          "ms": 1438489505170.9973
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-08-01",
          "window": {
            "start": {
              "local": "2015-08-01T19:51:31+04:00",
              "utc": "2015-08-01T15:51:31Z",
              "ms": 1438444290730.0742
            },
            "end": {
              "local": "2015-08-01T19:51:31+04:00",
              "utc": "2015-08-01T15:51:31Z",
              "ms": 1438444290730.0742
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-08-02",
          "window": {
            "start": {
              "local": "2015-08-02T20:38:42+04:00",
              "utc": "2015-08-02T16:38:42Z",
              "ms": 1438533521737.8772
            },
            "end": {
              "local": "2015-08-02T20:38:42+04:00",
              "utc": "2015-08-02T16:38:42Z",
              "ms": 1438533521737.8772
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 11:38 on Sat 1 Aug to 08:25 on Sun 2 Aug.",
          "fact": "2015-08-01T07:37:51Z → 2015-08-02T04:25:05Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:52 on the 1st and 20:39 on the 2nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is on the 1st and is not on the 2nd.",
          "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 29620 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata (Āṣāḍha), Abu Dhabi, 2015: Saturday 1 August.",
          "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": "2015-08-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Aśūnya Śayana Vrata (Āṣāḍha) 2015 falls on Saturday 1 August. Dvitīyā runs from 11:38 on Sat 1 Aug to 08:25 on Sun 2 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-08-03",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17186,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-08-03T05:13:24+04:00",
          "utc": "2015-08-03T01:13:24Z",
          "ms": 1438564404453.6943
        },
        "end": {
          "local": "2015-08-04T02:10:38+04:00",
          "utc": "2015-08-03T22:10:38Z",
          "ms": 1438639837699.9224
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-03T05:13:24+04:00",
          "utc": "2015-08-03T01:13:24Z",
          "ms": 1438564404453.6943
        },
        "end": {
          "local": "2015-08-04T02:10:38+04:00",
          "utc": "2015-08-03T22:10:38Z",
          "ms": 1438639837699.9224
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-08-02",
          "window": {
            "start": {
              "local": "2015-08-02T20:38:42+04:00",
              "utc": "2015-08-02T16:38:42Z",
              "ms": 1438533521737.8772
            },
            "end": {
              "local": "2015-08-02T20:38:42+04:00",
              "utc": "2015-08-02T16:38:42Z",
              "ms": 1438533521737.8772
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-08-03",
          "window": {
            "start": {
              "local": "2015-08-03T21:24:11+04:00",
              "utc": "2015-08-03T17:24:11Z",
              "ms": 1438622651338.8926
            },
            "end": {
              "local": "2015-08-03T21:24:11+04:00",
              "utc": "2015-08-03T17:24:11Z",
              "ms": 1438622651338.8926
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 05:13 on Mon 3 Aug to 02:11 on Tue 4 Aug.",
          "fact": "2015-08-03T01:13:24Z → 2015-08-03T22:10:38Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:39 on the 2nd and 21:24 on the 3rd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 2nd and is on the 3rd.",
          "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 17186 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Monday 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": "2015-08-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Monday 3 August. Caturthī runs from 05:13 on Mon 3 Aug to 02:11 on Tue 4 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-08-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-08-10",
      "festival": "ekadashi",
      "name": "Kāmikā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33646,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-08-09T15:28:50+04:00",
          "utc": "2015-08-09T11:28:50Z",
          "ms": 1439119730061.5352
        },
        "end": {
          "local": "2015-08-10T15:15:41+04:00",
          "utc": "2015-08-10T11:15:41Z",
          "ms": 1439205340695.7412
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-09T15:28:50+04:00",
          "utc": "2015-08-09T11:28:50Z",
          "ms": 1439119730061.5352
        },
        "end": {
          "local": "2015-08-10T15:15:41+04:00",
          "utc": "2015-08-10T11:15:41Z",
          "ms": 1439205340695.7412
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-08-09",
          "window": {
            "start": {
              "local": "2015-08-09T05:54:28+04:00",
              "utc": "2015-08-09T01:54:28Z",
              "ms": 1439085268408.8125
            },
            "end": {
              "local": "2015-08-09T05:54:28+04:00",
              "utc": "2015-08-09T01:54:28Z",
              "ms": 1439085268408.8125
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-08-10",
          "window": {
            "start": {
              "local": "2015-08-10T05:54:55+04:00",
              "utc": "2015-08-10T01:54:55Z",
              "ms": 1439171694693.1365
            },
            "end": {
              "local": "2015-08-10T05:54:55+04:00",
              "utc": "2015-08-10T01:54:55Z",
              "ms": 1439171694693.1365
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:29 on Sun 9 Aug to 15:16 on Mon 10 Aug.",
          "fact": "2015-08-09T11:28:50Z → 2015-08-10T11:15:41Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:54 on the 9th and 05:55 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 33646 s"
        },
        {
          "step": "ruling",
          "text": "Kāmikā Ekādaśī, Abu Dhabi, 2015: Monday 10 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": "2015-08-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kāmikā Ekādaśī 2015 falls on Monday 10 August. Ekādaśī runs from 15:29 on Sun 9 Aug to 15:16 on Mon 10 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-08-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-08-11",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10069,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-08-11T15:29:50+04:00",
          "utc": "2015-08-11T11:29:50Z",
          "ms": 1439292590450.3635
        },
        "end": {
          "local": "2015-08-12T16:11:06+04:00",
          "utc": "2015-08-12T12:11:06Z",
          "ms": 1439381466491.2441
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-11T15:29:50+04:00",
          "utc": "2015-08-11T11:29:50Z",
          "ms": 1439292590450.3635
        },
        "end": {
          "local": "2015-08-12T16:11:06+04:00",
          "utc": "2015-08-12T12:11:06Z",
          "ms": 1439381466491.2441
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-08-11",
          "window": {
            "start": {
              "local": "2015-08-11T18:59:41+04:00",
              "utc": "2015-08-11T14:59:41Z",
              "ms": 1439305180585.1895
            },
            "end": {
              "local": "2015-08-11T20:27:09+04:00",
              "utc": "2015-08-11T16:27:09Z",
              "ms": 1439310429404.0793
            }
          },
          "covered_min": 87,
          "window_min": 87,
          "qualifies": true
        },
        {
          "local_date": "2015-08-12",
          "window": {
            "start": {
              "local": "2015-08-12T18:58:55+04:00",
              "utc": "2015-08-12T14:58:55Z",
              "ms": 1439391535160.6917
            },
            "end": {
              "local": "2015-08-12T20:26:33+04:00",
              "utc": "2015-08-12T16:26:33Z",
              "ms": 1439396793467.008
            }
          },
          "covered_min": 0,
          "window_min": 88,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:30 on Tue 11 Aug to 16:11 on Wed 12 Aug.",
          "fact": "2015-08-11T11:29:50Z → 2015-08-12T12:11:06Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:00–20:27 on the 11th, 18:59–20:27 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 87 of 87 minutes on the 11th and 0 of 88 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 10069 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Tuesday 11 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": "2015-08-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Tuesday 11 August. Trayodaśī runs from 15:30 on Tue 11 Aug to 16:11 on Wed 12 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-08-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-08-12",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24251,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-08-12T16:11:06+04:00",
          "utc": "2015-08-12T12:11:06Z",
          "ms": 1439381466491.2441
        },
        "end": {
          "local": "2015-08-13T17:19:12+04:00",
          "utc": "2015-08-13T13:19:12Z",
          "ms": 1439471952269.5337
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-12T16:11:06+04:00",
          "utc": "2015-08-12T12:11:06Z",
          "ms": 1439381466491.2441
        },
        "end": {
          "local": "2015-08-13T17:19:12+04:00",
          "utc": "2015-08-13T13:19:12Z",
          "ms": 1439471952269.5337
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-08-12",
          "window": {
            "start": {
              "local": "2015-08-13T00:03:34+04:00",
              "utc": "2015-08-12T20:03:34Z",
              "ms": 1439409813809.3782
            },
            "end": {
              "local": "2015-08-13T00:51:34+04:00",
              "utc": "2015-08-12T20:51:34Z",
              "ms": 1439412693809.3782
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-08-13",
          "window": {
            "start": {
              "local": "2015-08-14T00:03:23+04:00",
              "utc": "2015-08-13T20:03:23Z",
              "ms": 1439496203410.5332
            },
            "end": {
              "local": "2015-08-14T00:51:23+04:00",
              "utc": "2015-08-13T20:51:23Z",
              "ms": 1439499083410.5332
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 16:11 on Wed 12 Aug to 17:19 on Thu 13 Aug.",
          "fact": "2015-08-12T12:11:06Z → 2015-08-13T13:19:12Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:04–00:52 on the 12th, 00:03–00:51 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 24251 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Wednesday 12 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": "2015-08-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Wednesday 12 August. Caturdaśī runs from 16:11 on Wed 12 Aug to 17:19 on Thu 13 Aug and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-08-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/madhusrava-tritiya",
      "festival": "madhusrava-tritiya",
      "name": "Madhusravā Tṛtīyā",
      "everyday": "Hariyali Teej",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37067,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2015-08-16T23:10:54+04:00",
          "utc": "2015-08-16T19:10:54Z",
          "ms": 1439752254463.2231
        },
        "end": {
          "local": "2015-08-18T01:44:24+04:00",
          "utc": "2015-08-17T21:44:24Z",
          "ms": 1439847863667.316
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-16T23:10:54+04:00",
          "utc": "2015-08-16T19:10:54Z",
          "ms": 1439752254463.2231
        },
        "end": {
          "local": "2015-08-18T01:44:24+04:00",
          "utc": "2015-08-17T21:44:24Z",
          "ms": 1439847863667.316
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-08-17",
          "window": {
            "start": {
              "local": "2015-08-17T12:02:24+04:00",
              "utc": "2015-08-17T08:02:24Z",
              "ms": 1439798544072.812
            },
            "end": {
              "local": "2015-08-17T12:50:24+04:00",
              "utc": "2015-08-17T08:50:24Z",
              "ms": 1439801424072.812
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-08-18",
          "window": {
            "start": {
              "local": "2015-08-18T12:02:11+04:00",
              "utc": "2015-08-18T08:02:11Z",
              "ms": 1439884931116.2183
            },
            "end": {
              "local": "2015-08-18T12:50:11+04:00",
              "utc": "2015-08-18T08:50:11Z",
              "ms": 1439887811116.2183
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 23:11 on Sun 16 Aug to 01:44 on Tue 18 Aug.",
          "fact": "2015-08-16T19:10:54Z → 2015-08-17T21:44:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 17th, 12:02–12:50 on the 18th.",
          "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 17th and 0 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: paraviddha → only-day · margin 37067 s"
        },
        {
          "step": "ruling",
          "text": "Madhusravā Tṛtīyā, Abu Dhabi, 2015: Monday 17 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": "2015-08-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Madhusravā Tṛtīyā (Hariyali Teej) 2015 falls on Monday 17 August. Tṛtīyā runs from 23:11 on Sun 16 Aug to 01:44 on Tue 18 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-08-18",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27516,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-08-18T01:44:24+04:00",
          "utc": "2015-08-17T21:44:24Z",
          "ms": 1439847863667.316
        },
        "end": {
          "local": "2015-08-19T04:23:22+04:00",
          "utc": "2015-08-19T00:23:22Z",
          "ms": 1439943801596.776
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-18T01:44:24+04:00",
          "utc": "2015-08-17T21:44:24Z",
          "ms": 1439847863667.316
        },
        "end": {
          "local": "2015-08-19T04:23:22+04:00",
          "utc": "2015-08-19T00:23:22Z",
          "ms": 1439943801596.776
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-08-18",
          "window": {
            "start": {
              "local": "2015-08-18T12:02:11+04:00",
              "utc": "2015-08-18T08:02:11Z",
              "ms": 1439884931116.2183
            },
            "end": {
              "local": "2015-08-18T12:50:11+04:00",
              "utc": "2015-08-18T08:50:11Z",
              "ms": 1439887811116.2183
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-08-19",
          "window": {
            "start": {
              "local": "2015-08-19T12:01:58+04:00",
              "utc": "2015-08-19T08:01:58Z",
              "ms": 1439971317649.826
            },
            "end": {
              "local": "2015-08-19T12:49:58+04:00",
              "utc": "2015-08-19T08:49:58Z",
              "ms": 1439974197649.826
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 01:44 on Tue 18 Aug to 04:23 on Wed 19 Aug.",
          "fact": "2015-08-17T21:44:24Z → 2015-08-19T00:23:22Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 18th, 12:02–12:50 on the 19th.",
          "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 18th and 0 of 48 on the 19th.",
          "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 27516 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Tuesday 18 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": "2015-08-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Tuesday 18 August. Caturthī runs from 01:44 on Tue 18 Aug to 04:23 on Wed 19 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-08-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/naga-panchami",
      "festival": "naga-panchami",
      "name": "Nāga Pañcamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18319,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2015-08-19T04:23:22+04:00",
          "utc": "2015-08-19T00:23:22Z",
          "ms": 1439943801596.776
        },
        "end": {
          "local": "2015-08-20T06:56:25+04:00",
          "utc": "2015-08-20T02:56:25Z",
          "ms": 1440039384812.775
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-19T04:23:22+04:00",
          "utc": "2015-08-19T00:23:22Z",
          "ms": 1439943801596.776
        },
        "end": {
          "local": "2015-08-20T06:56:25+04:00",
          "utc": "2015-08-20T02:56:25Z",
          "ms": 1440039384812.775
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-08-19",
          "window": {
            "start": {
              "local": "2015-08-19T12:01:58+04:00",
              "utc": "2015-08-19T08:01:58Z",
              "ms": 1439971317649.826
            },
            "end": {
              "local": "2015-08-19T12:49:58+04:00",
              "utc": "2015-08-19T08:49:58Z",
              "ms": 1439974197649.826
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-08-20",
          "window": {
            "start": {
              "local": "2015-08-20T12:01:44+04:00",
              "utc": "2015-08-20T08:01:44Z",
              "ms": 1440057703682.9175
            },
            "end": {
              "local": "2015-08-20T12:49:44+04:00",
              "utc": "2015-08-20T08:49:44Z",
              "ms": 1440060583682.9175
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 04:23 on Wed 19 Aug to 06:56 on Thu 20 Aug.",
          "fact": "2015-08-19T00:23:22Z → 2015-08-20T02:56:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 19th, 12:02–12:50 on the 20th.",
          "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 19th and 0 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 18319 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī, Abu Dhabi, 2015: Wednesday 19 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": "2015-08-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Nāga Pañcamī 2015 falls on Wednesday 19 August. Pañcamī runs from 04:23 on Wed 19 Aug to 06:56 on Thu 20 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-08-26",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14942,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-08-25T11:34:59+04:00",
          "utc": "2015-08-25T07:34:59Z",
          "ms": 1440488099255.5225
        },
        "end": {
          "local": "2015-08-26T10:10:29+04:00",
          "utc": "2015-08-26T06:10:29Z",
          "ms": 1440569428618.2266
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-25T11:34:59+04:00",
          "utc": "2015-08-25T07:34:59Z",
          "ms": 1440488099255.5225
        },
        "end": {
          "local": "2015-08-26T10:10:29+04:00",
          "utc": "2015-08-26T06:10:29Z",
          "ms": 1440569428618.2266
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-08-25",
          "window": {
            "start": {
              "local": "2015-08-25T06:01:04+04:00",
              "utc": "2015-08-25T02:01:04Z",
              "ms": 1440468064216.197
            },
            "end": {
              "local": "2015-08-25T06:01:04+04:00",
              "utc": "2015-08-25T02:01:04Z",
              "ms": 1440468064216.197
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-08-26",
          "window": {
            "start": {
              "local": "2015-08-26T06:01:27+04:00",
              "utc": "2015-08-26T02:01:27Z",
              "ms": 1440554487074.0825
            },
            "end": {
              "local": "2015-08-26T06:01:27+04:00",
              "utc": "2015-08-26T02:01:27Z",
              "ms": 1440554487074.0825
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 11:35 on Tue 25 Aug to 10:10 on Wed 26 Aug.",
          "fact": "2015-08-25T07:34:59Z → 2015-08-26T06:10:29Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:01 on the 25th and 06:01 on the 26th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 25th and is on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 14942 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Abu Dhabi, 2015: Wednesday 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": "2015-08-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Putradā Ekādaśī 2015 falls on Wednesday 26 August. Ekādaśī runs from 11:35 on Tue 25 Aug to 10:10 on Wed 26 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-08-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/damodara-dvadashi",
      "festival": "damodara-dvadashi",
      "name": "Dāmodara Dvādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6581,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2015-08-26T10:10:29+04:00",
          "utc": "2015-08-26T06:10:29Z",
          "ms": 1440569428618.2266
        },
        "end": {
          "local": "2015-08-27T08:02:14+04:00",
          "utc": "2015-08-27T04:02:14Z",
          "ms": 1440648134242.097
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-26T10:10:29+04:00",
          "utc": "2015-08-26T06:10:29Z",
          "ms": 1440569428618.2266
        },
        "end": {
          "local": "2015-08-27T08:02:14+04:00",
          "utc": "2015-08-27T04:02:14Z",
          "ms": 1440648134242.097
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-08-26",
          "window": {
            "start": {
              "local": "2015-08-26T12:00:10+04:00",
              "utc": "2015-08-26T08:00:10Z",
              "ms": 1440576010003.8037
            },
            "end": {
              "local": "2015-08-26T12:48:10+04:00",
              "utc": "2015-08-26T08:48:10Z",
              "ms": 1440578890003.8037
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-08-27",
          "window": {
            "start": {
              "local": "2015-08-27T11:59:53+04:00",
              "utc": "2015-08-27T07:59:53Z",
              "ms": 1440662392871.1423
            },
            "end": {
              "local": "2015-08-27T12:47:53+04:00",
              "utc": "2015-08-27T08:47:53Z",
              "ms": 1440665272871.1423
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 10:10 on Wed 26 Aug to 08:02 on Thu 27 Aug.",
          "fact": "2015-08-26T06:10:29Z → 2015-08-27T04:02:14Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 26th, 12:00–12:48 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 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. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 6581 s"
        },
        {
          "step": "ruling",
          "text": "Dāmodara Dvādaśī, Abu Dhabi, 2015: Wednesday 26 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": "2015-08-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Dāmodara Dvādaśī 2015 falls on Wednesday 26 August. Dvādaśī runs from 10:10 on Wed 26 Aug to 08:02 on Thu 27 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-08-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32489,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-08-27T08:02:14+04:00",
          "utc": "2015-08-27T04:02:14Z",
          "ms": 1440648134242.097
        },
        "end": {
          "local": "2015-08-28T05:17:35+04:00",
          "utc": "2015-08-28T01:17:35Z",
          "ms": 1440724655490.1143
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-27T08:02:14+04:00",
          "utc": "2015-08-27T04:02:14Z",
          "ms": 1440648134242.097
        },
        "end": {
          "local": "2015-08-28T05:17:35+04:00",
          "utc": "2015-08-28T01:17:35Z",
          "ms": 1440724655490.1143
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-08-26",
          "window": {
            "start": {
              "local": "2015-08-26T18:46:53+04:00",
              "utc": "2015-08-26T14:46:53Z",
              "ms": 1440600412933.525
            },
            "end": {
              "local": "2015-08-26T20:16:53+04:00",
              "utc": "2015-08-26T16:16:53Z",
              "ms": 1440605812505.5366
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        },
        {
          "local_date": "2015-08-27",
          "window": {
            "start": {
              "local": "2015-08-27T18:45:56+04:00",
              "utc": "2015-08-27T14:45:56Z",
              "ms": 1440686756018.672
            },
            "end": {
              "local": "2015-08-27T20:16:06+04:00",
              "utc": "2015-08-27T16:16:06Z",
              "ms": 1440692166172.6843
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:02 on Thu 27 Aug to 05:18 on Fri 28 Aug.",
          "fact": "2015-08-27T04:02:14Z → 2015-08-28T01:17:35Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:47–20:17 on the 26th, 18:46–20:16 on the 27th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 90 minutes on the 26th and 90 of 90 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 32489 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Thursday 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": "2015-08-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Thursday 27 August. Trayodaśī runs from 08:02 on Thu 27 Aug to 05:18 on Fri 28 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-08-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/raksha-bandhana",
      "festival": "raksha-bandhana",
      "name": "Rakṣā Bandhana",
      "everyday": "Rakhi",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22760,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-08-29T02:05:22+04:00",
          "utc": "2015-08-28T22:05:22Z",
          "ms": 1440799522420.8323
        },
        "end": {
          "local": "2015-08-29T22:35:12+04:00",
          "utc": "2015-08-29T18:35:12Z",
          "ms": 1440873311879.375
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "second-half",
        "start": {
          "local": "2015-08-29T12:21:55+04:00",
          "utc": "2015-08-29T08:21:55Z",
          "ms": 1440836514927.0637
        },
        "end": {
          "local": "2015-08-29T22:35:12+04:00",
          "utc": "2015-08-29T18:35:12Z",
          "ms": 1440873311879.375
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "2015-08-28",
          "window": {
            "start": {
              "local": "2015-08-28T06:02:12+04:00",
              "utc": "2015-08-28T02:02:12Z",
              "ms": 1440727332173.764
            },
            "end": {
              "local": "2015-08-29T06:02:34+04:00",
              "utc": "2015-08-29T02:02:34Z",
              "ms": 1440813754435.4065
            }
          },
          "covered_min": 0,
          "window_min": 1440,
          "qualifies": false
        },
        {
          "local_date": "2015-08-29",
          "window": {
            "start": {
              "local": "2015-08-29T06:02:34+04:00",
              "utc": "2015-08-29T02:02:34Z",
              "ms": 1440813754435.4065
            },
            "end": {
              "local": "2015-08-30T06:02:57+04:00",
              "utc": "2015-08-30T02:02:57Z",
              "ms": 1440900176521.163
            }
          },
          "covered_min": 613,
          "window_min": 1440,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 02:05 on Sat 29 Aug to 22:35 on Sat 29 Aug. Its second half begins at 12:22 on Sat 29 Aug.",
          "fact": "2015-08-28T22:05:22Z → 2015-08-29T18:35:12Z · second half from 2015-08-29T08:21:55Z"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 06:02 on the 28th, and from 06:03 on the 29th.",
          "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 0 of 1440 minutes on the 28th and 613 of 1440 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one day qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 22760 s"
        },
        {
          "step": "ruling",
          "text": "Rakṣā Bandhana, Abu Dhabi, 2015: Saturday 29 August.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "2015-08-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Rakṣā Bandhana (Rakhi) 2015 falls on Saturday 29 August. The second half of Pūrṇimā runs from 12:22 on Sat 29 Aug to 22:35 on Sat 29 Aug and lies within that day, sunrise to sunrise.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/rishi-tarpana",
      "festival": "rishi-tarpana",
      "name": "Ṛṣi Tarpaṇa",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35274,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-08-29T02:05:22+04:00",
          "utc": "2015-08-28T22:05:22Z",
          "ms": 1440799522420.8323
        },
        "end": {
          "local": "2015-08-29T22:35:12+04:00",
          "utc": "2015-08-29T18:35:12Z",
          "ms": 1440873311879.375
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-29T02:05:22+04:00",
          "utc": "2015-08-28T22:05:22Z",
          "ms": 1440799522420.8323
        },
        "end": {
          "local": "2015-08-29T22:35:12+04:00",
          "utc": "2015-08-29T18:35:12Z",
          "ms": 1440873311879.375
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-08-28",
          "window": {
            "start": {
              "local": "2015-08-28T11:59:35+04:00",
              "utc": "2015-08-28T07:59:35Z",
              "ms": 1440748775347.813
            },
            "end": {
              "local": "2015-08-28T12:47:35+04:00",
              "utc": "2015-08-28T08:47:35Z",
              "ms": 1440751655347.813
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-08-29",
          "window": {
            "start": {
              "local": "2015-08-29T11:59:17+04:00",
              "utc": "2015-08-29T07:59:17Z",
              "ms": 1440835157453.1667
            },
            "end": {
              "local": "2015-08-29T12:47:17+04:00",
              "utc": "2015-08-29T08:47:17Z",
              "ms": 1440838037453.1667
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 02:05 on Sat 29 Aug to 22:35 on Sat 29 Aug.",
          "fact": "2015-08-28T22:05:22Z → 2015-08-29T18:35:12Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 28th, 11:59–12:47 on the 29th.",
          "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 28th and 48 of 48 on the 29th.",
          "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 35274 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Tarpaṇa, Abu Dhabi, 2015: Saturday 29 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": "2015-08-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Ṛṣi Tarpaṇa 2015 falls on Saturday 29 August. Pūrṇimā runs from 02:05 on Sat 29 Aug to 22:35 on Sat 29 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ashunya-shayana-vrata",
      "festival": "ashunya-shayana-vrata",
      "name": "Aśūnya Śayana Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-08-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1080,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2015-08-30T18:56:54+04:00",
          "utc": "2015-08-30T14:56:54Z",
          "ms": 1440946614333.8328
        },
        "end": {
          "local": "2015-08-31T15:20:09+04:00",
          "utc": "2015-08-31T11:20:09Z",
          "ms": 1441020009281.4893
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-30T18:56:54+04:00",
          "utc": "2015-08-30T14:56:54Z",
          "ms": 1440946614333.8328
        },
        "end": {
          "local": "2015-08-31T15:20:09+04:00",
          "utc": "2015-08-31T11:20:09Z",
          "ms": 1441020009281.4893
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-08-30",
          "window": {
            "start": {
              "local": "2015-08-30T19:14:55+04:00",
              "utc": "2015-08-30T15:14:55Z",
              "ms": 1440947694745.5398
            },
            "end": {
              "local": "2015-08-30T19:14:55+04:00",
              "utc": "2015-08-30T15:14:55Z",
              "ms": 1440947694745.5398
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-08-31",
          "window": {
            "start": {
              "local": "2015-08-31T20:01:26+04:00",
              "utc": "2015-08-31T16:01:26Z",
              "ms": 1441036886490.7031
            },
            "end": {
              "local": "2015-08-31T20:01:26+04:00",
              "utc": "2015-08-31T16:01:26Z",
              "ms": 1441036886490.7031
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 18:57 on Sun 30 Aug to 15:20 on Mon 31 Aug.",
          "fact": "2015-08-30T14:56:54Z → 2015-08-31T11:20:09Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:15 on the 30th and 20:01 on the 31st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is on the 30th and is not 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 1080 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata, Abu Dhabi, 2015: Sunday 30 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": "2015-08-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-08-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Aśūnya Śayana Vrata 2015 falls on Sunday 30 August. Dvitīyā runs from 18:57 on Sun 30 Aug to 15:20 on Mon 31 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/kajjali-tritiya",
      "festival": "kajjali-tritiya",
      "name": "Kajjalī Tṛtīyā",
      "everyday": "Kajari Teej",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-01",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 256,
      "anga": {
        "type": "tithi",
        "index": 17,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2015-08-31T15:20:09+04:00",
          "utc": "2015-08-31T11:20:09Z",
          "ms": 1441020009281.4893
        },
        "end": {
          "local": "2015-09-01T11:54:06+04:00",
          "utc": "2015-09-01T07:54:06Z",
          "ms": 1441094045815.141
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-08-31T15:20:09+04:00",
          "utc": "2015-08-31T11:20:09Z",
          "ms": 1441020009281.4893
        },
        "end": {
          "local": "2015-09-01T11:54:06+04:00",
          "utc": "2015-09-01T07:54:06Z",
          "ms": 1441094045815.141
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-08-31",
          "window": {
            "start": {
              "local": "2015-08-31T11:58:41+04:00",
              "utc": "2015-08-31T07:58:41Z",
              "ms": 1441007920632.9272
            },
            "end": {
              "local": "2015-08-31T12:46:41+04:00",
              "utc": "2015-08-31T08:46:41Z",
              "ms": 1441010800632.9272
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-09-01",
          "window": {
            "start": {
              "local": "2015-09-01T11:58:22+04:00",
              "utc": "2015-09-01T07:58:22Z",
              "ms": 1441094301750.4927
            },
            "end": {
              "local": "2015-09-01T12:46:22+04:00",
              "utc": "2015-09-01T08:46:22Z",
              "ms": 1441097181750.4927
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 15:20 on Mon 31 Aug to 11:54 on Tue 1 Sep.",
          "fact": "2015-08-31T11:20:09Z → 2015-09-01T07:54:06Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 31st, 11:58–12:46 on the 1st.",
          "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 31st and 0 of 48 on the 1st.",
          "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: paraviddha → second-day · margin 256 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Kajjalī Tṛtīyā, Abu Dhabi, 2015: Tuesday 1 September.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2015-09-01",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kajjalī Tṛtīyā (Kajari Teej) 2015 falls on Tuesday 1 September. Tṛtīyā runs from 15:20 on Mon 31 Aug to 11:54 on Tue 1 Sep, and reaches madhyāhna on neither day. It is 4 min 16 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/bahula-chaturthi",
      "festival": "bahula-chaturthi",
      "name": "Bahulā Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15329,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-09-01T11:54:06+04:00",
          "utc": "2015-09-01T07:54:06Z",
          "ms": 1441094045815.141
        },
        "end": {
          "local": "2015-09-02T08:47:05+04:00",
          "utc": "2015-09-02T04:47:05Z",
          "ms": 1441169225152.528
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-01T11:54:06+04:00",
          "utc": "2015-09-01T07:54:06Z",
          "ms": 1441094045815.141
        },
        "end": {
          "local": "2015-09-02T08:47:05+04:00",
          "utc": "2015-09-02T04:47:05Z",
          "ms": 1441169225152.528
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2015-09-01",
          "window": {
            "start": {
              "local": "2015-09-01T16:09:35+04:00",
              "utc": "2015-09-01T12:09:35Z",
              "ms": 1441109374667.9353
            },
            "end": {
              "local": "2015-09-01T18:41:03+04:00",
              "utc": "2015-09-01T14:41:03Z",
              "ms": 1441118463279.5637
            }
          },
          "covered_min": 151,
          "window_min": 151,
          "qualifies": true
        },
        {
          "local_date": "2015-09-02",
          "window": {
            "start": {
              "local": "2015-09-02T16:08:51+04:00",
              "utc": "2015-09-02T12:08:51Z",
              "ms": 1441195731011.9211
            },
            "end": {
              "local": "2015-09-02T18:40:03+04:00",
              "utc": "2015-09-02T14:40:03Z",
              "ms": 1441204803298.5803
            }
          },
          "covered_min": 0,
          "window_min": 151,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 11:54 on Tue 1 Sep to 08:47 on Wed 2 Sep.",
          "fact": "2015-09-01T07:54:06Z → 2015-09-02T04:47:05Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:10–18:41 on the 1st, 16:09–18:40 on the 2nd.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during sāyāhna. It covers 151 of 151 minutes on the 1st and 0 of 151 on the 2nd.",
          "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 15329 s"
        },
        {
          "step": "ruling",
          "text": "Bahulā Caturthī, Abu Dhabi, 2015: Tuesday 1 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": "2015-09-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Bahulā Caturthī 2015 falls on Tuesday 1 September. Caturthī runs from 11:54 on Tue 1 Sep to 08:47 on Wed 2 Sep and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-09-01",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32021,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-09-01T11:54:06+04:00",
          "utc": "2015-09-01T07:54:06Z",
          "ms": 1441094045815.141
        },
        "end": {
          "local": "2015-09-02T08:47:05+04:00",
          "utc": "2015-09-02T04:47:05Z",
          "ms": 1441169225152.528
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-01T11:54:06+04:00",
          "utc": "2015-09-01T07:54:06Z",
          "ms": 1441094045815.141
        },
        "end": {
          "local": "2015-09-02T08:47:05+04:00",
          "utc": "2015-09-02T04:47:05Z",
          "ms": 1441169225152.528
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-09-01",
          "window": {
            "start": {
              "local": "2015-09-01T20:47:47+04:00",
              "utc": "2015-09-01T16:47:47Z",
              "ms": 1441126066631.056
            },
            "end": {
              "local": "2015-09-01T20:47:47+04:00",
              "utc": "2015-09-01T16:47:47Z",
              "ms": 1441126066631.056
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-09-02",
          "window": {
            "start": {
              "local": "2015-09-02T21:34:39+04:00",
              "utc": "2015-09-02T17:34:39Z",
              "ms": 1441215279251.561
            },
            "end": {
              "local": "2015-09-02T21:34:39+04:00",
              "utc": "2015-09-02T17:34:39Z",
              "ms": 1441215279251.561
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 11:54 on Tue 1 Sep to 08:47 on Wed 2 Sep.",
          "fact": "2015-09-01T07:54:06Z → 2015-09-02T04:47:05Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:48 on the 1st and 21:35 on the 2nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 1st and is not 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 32021 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Tuesday 1 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": "2015-09-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Tuesday 1 September. Caturthī runs from 11:54 on Tue 1 Sep to 08:47 on Wed 2 Sep and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-09-01",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/hala-shashthi",
      "festival": "hala-shashthi",
      "name": "Hala Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21080,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2015-09-03T06:06:23+04:00",
          "utc": "2015-09-03T02:06:23Z",
          "ms": 1441245983019.9756
        },
        "end": {
          "local": "2015-09-04T03:57:51+04:00",
          "utc": "2015-09-03T23:57:51Z",
          "ms": 1441324671455.3762
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-03T06:06:23+04:00",
          "utc": "2015-09-03T02:06:23Z",
          "ms": 1441245983019.9756
        },
        "end": {
          "local": "2015-09-04T03:57:51+04:00",
          "utc": "2015-09-03T23:57:51Z",
          "ms": 1441324671455.3762
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-03",
          "window": {
            "start": {
              "local": "2015-09-03T11:57:43+04:00",
              "utc": "2015-09-03T07:57:43Z",
              "ms": 1441267063147.5483
            },
            "end": {
              "local": "2015-09-03T12:45:43+04:00",
              "utc": "2015-09-03T08:45:43Z",
              "ms": 1441269943147.5483
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-09-04",
          "window": {
            "start": {
              "local": "2015-09-04T11:57:23+04:00",
              "utc": "2015-09-04T07:57:23Z",
              "ms": 1441353443466.942
            },
            "end": {
              "local": "2015-09-04T12:45:23+04:00",
              "utc": "2015-09-04T08:45:23Z",
              "ms": 1441356323466.942
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 06:06 on Thu 3 Sep to 03:58 on Fri 4 Sep.",
          "fact": "2015-09-03T02:06:23Z → 2015-09-03T23:57:51Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 3rd, 11:57–12:45 on the 4th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 21080 s"
        },
        {
          "step": "ruling",
          "text": "Hala Ṣaṣṭhī, Abu Dhabi, 2015: Thursday 3 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": "2015-09-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Hala Ṣaṣṭhī 2015 falls on Thursday 3 September. Ṣaṣṭhī runs from 06:06 on Thu 3 Sep to 03:58 on Fri 4 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/shitala-saptami",
      "festival": "shitala-saptami",
      "name": "Śītalā Saptamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28772,
      "anga": {
        "type": "tithi",
        "index": 21,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2015-09-04T03:57:51+04:00",
          "utc": "2015-09-03T23:57:51Z",
          "ms": 1441324671455.3762
        },
        "end": {
          "local": "2015-09-05T02:25:42+04:00",
          "utc": "2015-09-04T22:25:42Z",
          "ms": 1441405541607.431
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-04T03:57:51+04:00",
          "utc": "2015-09-03T23:57:51Z",
          "ms": 1441324671455.3762
        },
        "end": {
          "local": "2015-09-05T02:25:42+04:00",
          "utc": "2015-09-04T22:25:42Z",
          "ms": 1441405541607.431
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-04",
          "window": {
            "start": {
              "local": "2015-09-04T11:57:23+04:00",
              "utc": "2015-09-04T07:57:23Z",
              "ms": 1441353443466.942
            },
            "end": {
              "local": "2015-09-04T12:45:23+04:00",
              "utc": "2015-09-04T08:45:23Z",
              "ms": 1441356323466.942
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-09-05",
          "window": {
            "start": {
              "local": "2015-09-05T11:57:04+04:00",
              "utc": "2015-09-05T07:57:04Z",
              "ms": 1441439823558.7373
            },
            "end": {
              "local": "2015-09-05T12:45:04+04:00",
              "utc": "2015-09-05T08:45:04Z",
              "ms": 1441442703558.7373
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 03:58 on Fri 4 Sep to 02:26 on Sat 5 Sep.",
          "fact": "2015-09-03T23:57:51Z → 2015-09-04T22:25:42Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 4th, 11:57–12:45 on the 5th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 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: purvaviddha → only-day · margin 28772 s"
        },
        {
          "step": "ruling",
          "text": "Śītalā Saptamī, Abu Dhabi, 2015: Friday 4 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": "2015-09-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śītalā Saptamī 2015 falls on Friday 4 September. Saptamī runs from 03:58 on Fri 4 Sep to 02:26 on Sat 5 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/janmashtami",
      "festival": "janmashtami",
      "name": "Janmāṣṭamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2817,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-09-05T02:25:42+04:00",
          "utc": "2015-09-04T22:25:42Z",
          "ms": 1441405541607.431
        },
        "end": {
          "local": "2015-09-06T01:32:11+04:00",
          "utc": "2015-09-05T21:32:11Z",
          "ms": 1441488730956.2915
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-05T02:25:42+04:00",
          "utc": "2015-09-04T22:25:42Z",
          "ms": 1441405541607.431
        },
        "end": {
          "local": "2015-09-06T01:32:11+04:00",
          "utc": "2015-09-05T21:32:11Z",
          "ms": 1441488730956.2915
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-09-04",
          "window": {
            "start": {
              "local": "2015-09-04T23:57:34+04:00",
              "utc": "2015-09-04T19:57:34Z",
              "ms": 1441396654127.884
            },
            "end": {
              "local": "2015-09-05T00:45:34+04:00",
              "utc": "2015-09-04T20:45:34Z",
              "ms": 1441399534127.884
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-09-05",
          "window": {
            "start": {
              "local": "2015-09-05T23:57:14+04:00",
              "utc": "2015-09-05T19:57:14Z",
              "ms": 1441483034177.0833
            },
            "end": {
              "local": "2015-09-06T00:45:14+04:00",
              "utc": "2015-09-05T20:45:14Z",
              "ms": 1441485914177.0833
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 02:26 on Sat 5 Sep to 01:32 on Sun 6 Sep.",
          "fact": "2015-09-04T22:25:42Z → 2015-09-05T21:32:11Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:58–00:46 on the 4th, 23:57–00:45 on the 5th.",
          "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 4th and 48 of 48 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 2817 s"
        },
        {
          "step": "ruling",
          "text": "Janmāṣṭamī, Abu Dhabi, 2015: Saturday 5 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": "2015-09-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Janmāṣṭamī 2015 falls on Saturday 5 September. Aṣṭamī runs from 02:26 on Sat 5 Sep to 01:32 on Sun 6 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-09-08",
      "festival": "ekadashi",
      "name": "Ajā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12511,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-09-08T01:40:36+04:00",
          "utc": "2015-09-07T21:40:36Z",
          "ms": 1441662035857.1187
        },
        "end": {
          "local": "2015-09-09T02:37:59+04:00",
          "utc": "2015-09-08T22:37:59Z",
          "ms": 1441751879456.8032
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-08T01:40:36+04:00",
          "utc": "2015-09-07T21:40:36Z",
          "ms": 1441662035857.1187
        },
        "end": {
          "local": "2015-09-09T02:37:59+04:00",
          "utc": "2015-09-08T22:37:59Z",
          "ms": 1441751879456.8032
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-09-08",
          "window": {
            "start": {
              "local": "2015-09-08T06:06:10+04:00",
              "utc": "2015-09-08T02:06:10Z",
              "ms": 1441677969622.0154
            },
            "end": {
              "local": "2015-09-08T06:06:10+04:00",
              "utc": "2015-09-08T02:06:10Z",
              "ms": 1441677969622.0154
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-09-09",
          "window": {
            "start": {
              "local": "2015-09-09T06:06:31+04:00",
              "utc": "2015-09-09T02:06:31Z",
              "ms": 1441764390659.9644
            },
            "end": {
              "local": "2015-09-09T06:06:31+04:00",
              "utc": "2015-09-09T02:06:31Z",
              "ms": 1441764390659.9644
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 01:41 on Tue 8 Sep to 02:38 on Wed 9 Sep.",
          "fact": "2015-09-07T21:40:36Z → 2015-09-08T22:37:59Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:06 on the 8th and 06:07 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 12511 s"
        },
        {
          "step": "ruling",
          "text": "Ajā Ekādaśī, Abu Dhabi, 2015: Tuesday 8 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": "2015-09-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Ajā Ekādaśī 2015 falls on Tuesday 8 September. Ekādaśī runs from 01:41 on Tue 8 Sep to 02:38 on Wed 9 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-09-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-09-10",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28818,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-09-10T04:05:43+04:00",
          "utc": "2015-09-10T00:05:43Z",
          "ms": 1441843543480.1597
        },
        "end": {
          "local": "2015-09-11T05:59:01+04:00",
          "utc": "2015-09-11T01:59:01Z",
          "ms": 1441936741399.2112
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-10T04:05:43+04:00",
          "utc": "2015-09-10T00:05:43Z",
          "ms": 1441843543480.1597
        },
        "end": {
          "local": "2015-09-11T05:59:01+04:00",
          "utc": "2015-09-11T01:59:01Z",
          "ms": 1441936741399.2112
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-09-09",
          "window": {
            "start": {
              "local": "2015-09-09T18:32:53+04:00",
              "utc": "2015-09-09T14:32:53Z",
              "ms": 1441809173331.7122
            },
            "end": {
              "local": "2015-09-09T20:05:25+04:00",
              "utc": "2015-09-09T16:05:25Z",
              "ms": 1441814725107.4658
            }
          },
          "covered_min": 0,
          "window_min": 93,
          "qualifies": false
        },
        {
          "local_date": "2015-09-10",
          "window": {
            "start": {
              "local": "2015-09-10T18:31:51+04:00",
              "utc": "2015-09-10T14:31:51Z",
              "ms": 1441895510760.8032
            },
            "end": {
              "local": "2015-09-10T20:04:34+04:00",
              "utc": "2015-09-10T16:04:34Z",
              "ms": 1441901073672.734
            }
          },
          "covered_min": 93,
          "window_min": 93,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:06 on Thu 10 Sep to 05:59 on Fri 11 Sep.",
          "fact": "2015-09-10T00:05:43Z → 2015-09-11T01:59:01Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:33–20:05 on the 9th, 18:32–20:05 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 93 minutes on the 9th and 93 of 93 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 28818 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Thursday 10 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": "2015-09-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Thursday 10 September. Trayodaśī runs from 04:06 on Thu 10 Sep to 05:59 on Fri 11 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-09-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/aghora-chaturdashi",
      "festival": "aghora-chaturdashi",
      "name": "Aghora Caturdaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35668,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-09-11T05:59:01+04:00",
          "utc": "2015-09-11T01:59:01Z",
          "ms": 1441936741399.2112
        },
        "end": {
          "local": "2015-09-12T08:12:43+04:00",
          "utc": "2015-09-12T04:12:43Z",
          "ms": 1442031162765.17
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-11T05:59:01+04:00",
          "utc": "2015-09-11T01:59:01Z",
          "ms": 1441936741399.2112
        },
        "end": {
          "local": "2015-09-12T08:12:43+04:00",
          "utc": "2015-09-12T04:12:43Z",
          "ms": 1442031162765.17
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-09-10",
          "window": {
            "start": {
              "local": "2015-09-10T18:31:51+04:00",
              "utc": "2015-09-10T14:31:51Z",
              "ms": 1441895510760.8032
            },
            "end": {
              "local": "2015-09-10T20:04:34+04:00",
              "utc": "2015-09-10T16:04:34Z",
              "ms": 1441901073672.734
            }
          },
          "covered_min": 0,
          "window_min": 93,
          "qualifies": false
        },
        {
          "local_date": "2015-09-11",
          "window": {
            "start": {
              "local": "2015-09-11T18:30:48+04:00",
              "utc": "2015-09-11T14:30:48Z",
              "ms": 1441981847972.8623
            },
            "end": {
              "local": "2015-09-11T20:03:42+04:00",
              "utc": "2015-09-11T16:03:42Z",
              "ms": 1441987422046.0034
            }
          },
          "covered_min": 93,
          "window_min": 93,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:59 on Fri 11 Sep to 08:13 on Sat 12 Sep.",
          "fact": "2015-09-11T01:59:01Z → 2015-09-12T04:12:43Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:32–20:05 on the 10th, 18:31–20:04 on the 11th.",
          "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 93 minutes on the 10th and 93 of 93 on the 11th.",
          "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 35668 s"
        },
        {
          "step": "ruling",
          "text": "Aghora Caturdaśī, Abu Dhabi, 2015: Friday 11 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": "2015-09-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Aghora Caturdaśī 2015 falls on Friday 11 September. Caturdaśī runs from 05:59 on Fri 11 Sep to 08:13 on Sat 12 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/shivaratri?on=2015-09-11",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18930,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-09-11T05:59:01+04:00",
          "utc": "2015-09-11T01:59:01Z",
          "ms": 1441936741399.2112
        },
        "end": {
          "local": "2015-09-12T08:12:43+04:00",
          "utc": "2015-09-12T04:12:43Z",
          "ms": 1442031162765.17
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-11T05:59:01+04:00",
          "utc": "2015-09-11T01:59:01Z",
          "ms": 1441936741399.2112
        },
        "end": {
          "local": "2015-09-12T08:12:43+04:00",
          "utc": "2015-09-12T04:12:43Z",
          "ms": 1442031162765.17
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-09-10",
          "window": {
            "start": {
              "local": "2015-09-10T23:55:32+04:00",
              "utc": "2015-09-10T19:55:32Z",
              "ms": 1441914931680.5435
            },
            "end": {
              "local": "2015-09-11T00:43:32+04:00",
              "utc": "2015-09-10T20:43:32Z",
              "ms": 1441917811680.5435
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-09-11",
          "window": {
            "start": {
              "local": "2015-09-11T23:55:11+04:00",
              "utc": "2015-09-11T19:55:11Z",
              "ms": 1442001310747.1416
            },
            "end": {
              "local": "2015-09-12T00:43:11+04:00",
              "utc": "2015-09-11T20:43:11Z",
              "ms": 1442004190747.1416
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:59 on Fri 11 Sep to 08:13 on Sat 12 Sep.",
          "fact": "2015-09-11T01:59:01Z → 2015-09-12T04:12:43Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:56–00:44 on the 10th, 23:55–00:43 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 18930 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Friday 11 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": "2015-09-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Friday 11 September. Caturdaśī runs from 05:59 on Fri 11 Sep to 08:13 on Sat 12 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-09-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/rudra-vrata",
      "festival": "rudra-vrata",
      "name": "Rudra Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2201,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2015-09-13T10:41:16+04:00",
          "utc": "2015-09-13T06:41:16Z",
          "ms": 1442126475862.7202
        },
        "end": {
          "local": "2015-09-14T13:18:38+04:00",
          "utc": "2015-09-14T09:18:38Z",
          "ms": 1442222317931.6755
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-13T10:41:16+04:00",
          "utc": "2015-09-13T06:41:16Z",
          "ms": 1442126475862.7202
        },
        "end": {
          "local": "2015-09-14T13:18:38+04:00",
          "utc": "2015-09-14T09:18:38Z",
          "ms": 1442222317931.6755
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-13",
          "window": {
            "start": {
              "local": "2015-09-13T11:54:18+04:00",
              "utc": "2015-09-13T07:54:18Z",
              "ms": 1442130858130.5962
            },
            "end": {
              "local": "2015-09-13T12:42:18+04:00",
              "utc": "2015-09-13T08:42:18Z",
              "ms": 1442133738130.5962
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-09-14",
          "window": {
            "start": {
              "local": "2015-09-14T11:53:57+04:00",
              "utc": "2015-09-14T07:53:57Z",
              "ms": 1442217236925.567
            },
            "end": {
              "local": "2015-09-14T12:41:57+04:00",
              "utc": "2015-09-14T08:41:57Z",
              "ms": 1442220116925.567
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 10:41 on Sun 13 Sep to 13:19 on Mon 14 Sep.",
          "fact": "2015-09-13T06:41:16Z → 2015-09-14T09:18:38Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 13th, 11:54–12:42 on the 14th.",
          "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 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 2201 s"
        },
        {
          "step": "ruling",
          "text": "Rudra Vrata, Abu Dhabi, 2015: Sunday 13 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": "2015-09-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Rudra Vrata 2015 falls on Sunday 13 September. Pratipadā runs from 10:41 on Sun 13 Sep to 13:19 on Mon 14 Sep 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/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/haritalika-vrata",
      "festival": "haritalika-vrata",
      "name": "Haritālikā Vrata",
      "everyday": "Hartalika Teej",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11784,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2015-09-15T15:58:00+04:00",
          "utc": "2015-09-15T11:58:00Z",
          "ms": 1442318279574.9033
        },
        "end": {
          "local": "2015-09-16T18:31:34+04:00",
          "utc": "2015-09-16T14:31:34Z",
          "ms": 1442413893831.066
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-15T15:58:00+04:00",
          "utc": "2015-09-15T11:58:00Z",
          "ms": 1442318279574.9033
        },
        "end": {
          "local": "2015-09-16T18:31:34+04:00",
          "utc": "2015-09-16T14:31:34Z",
          "ms": 1442413893831.066
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-15",
          "window": {
            "start": {
              "local": "2015-09-15T11:53:36+04:00",
              "utc": "2015-09-15T07:53:36Z",
              "ms": 1442303615657.774
            },
            "end": {
              "local": "2015-09-15T12:41:36+04:00",
              "utc": "2015-09-15T08:41:36Z",
              "ms": 1442306495657.774
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-09-16",
          "window": {
            "start": {
              "local": "2015-09-16T11:53:14+04:00",
              "utc": "2015-09-16T07:53:14Z",
              "ms": 1442389994343.9722
            },
            "end": {
              "local": "2015-09-16T12:41:14+04:00",
              "utc": "2015-09-16T08:41:14Z",
              "ms": 1442392874343.9722
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 15:58 on Tue 15 Sep to 18:32 on Wed 16 Sep.",
          "fact": "2015-09-15T11:58:00Z → 2015-09-16T14:31:34Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 15th, 11:53–12:41 on the 16th.",
          "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 15th and 48 of 48 on the 16th.",
          "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 11784 s"
        },
        {
          "step": "ruling",
          "text": "Haritālikā Vrata, Abu Dhabi, 2015: Wednesday 16 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": "2015-09-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Haritālikā Vrata (Hartalika Teej) 2015 falls on Wednesday 16 September. Tṛtīyā runs from 15:58 on Tue 15 Sep to 18:32 on Wed 16 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ganesha-chaturthi",
      "festival": "ganesha-chaturthi",
      "name": "Gaṇeśa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21019,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-09-16T18:31:34+04:00",
          "utc": "2015-09-16T14:31:34Z",
          "ms": 1442413893831.066
        },
        "end": {
          "local": "2015-09-17T20:50:41+04:00",
          "utc": "2015-09-17T16:50:41Z",
          "ms": 1442508640966.9636
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-16T18:31:34+04:00",
          "utc": "2015-09-16T14:31:34Z",
          "ms": 1442413893831.066
        },
        "end": {
          "local": "2015-09-17T20:50:41+04:00",
          "utc": "2015-09-17T16:50:41Z",
          "ms": 1442508640966.9636
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-16",
          "window": {
            "start": {
              "local": "2015-09-16T11:53:14+04:00",
              "utc": "2015-09-16T07:53:14Z",
              "ms": 1442389994343.9722
            },
            "end": {
              "local": "2015-09-16T12:41:14+04:00",
              "utc": "2015-09-16T08:41:14Z",
              "ms": 1442392874343.9722
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-09-17",
          "window": {
            "start": {
              "local": "2015-09-17T11:52:53+04:00",
              "utc": "2015-09-17T07:52:53Z",
              "ms": 1442476373001.2178
            },
            "end": {
              "local": "2015-09-17T12:40:53+04:00",
              "utc": "2015-09-17T08:40:53Z",
              "ms": 1442479253001.2178
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 18:32 on Wed 16 Sep to 20:51 on Thu 17 Sep.",
          "fact": "2015-09-16T14:31:34Z → 2015-09-17T16:50:41Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 16th, 11:53–12:41 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī 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: purvaviddha → only-day · margin 21019 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Caturthī, Abu Dhabi, 2015: Thursday 17 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": "2015-09-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Gaṇeśa Caturthī 2015 falls on Thursday 17 September. Caturthī runs from 18:32 on Wed 16 Sep to 20:51 on Thu 17 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/rishi-panchami",
      "festival": "rishi-panchami",
      "name": "Ṛṣi Pañcamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29388,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2015-09-17T20:50:41+04:00",
          "utc": "2015-09-17T16:50:41Z",
          "ms": 1442508640966.9636
        },
        "end": {
          "local": "2015-09-18T22:46:16+04:00",
          "utc": "2015-09-18T18:46:16Z",
          "ms": 1442601976149.013
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-17T20:50:41+04:00",
          "utc": "2015-09-17T16:50:41Z",
          "ms": 1442508640966.9636
        },
        "end": {
          "local": "2015-09-18T22:46:16+04:00",
          "utc": "2015-09-18T18:46:16Z",
          "ms": 1442601976149.013
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-17",
          "window": {
            "start": {
              "local": "2015-09-17T11:52:53+04:00",
              "utc": "2015-09-17T07:52:53Z",
              "ms": 1442476373001.2178
            },
            "end": {
              "local": "2015-09-17T12:40:53+04:00",
              "utc": "2015-09-17T08:40:53Z",
              "ms": 1442479253001.2178
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-09-18",
          "window": {
            "start": {
              "local": "2015-09-18T11:52:32+04:00",
              "utc": "2015-09-18T07:52:32Z",
              "ms": 1442562751646.909
            },
            "end": {
              "local": "2015-09-18T12:40:32+04:00",
              "utc": "2015-09-18T08:40:32Z",
              "ms": 1442565631646.909
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 20:51 on Thu 17 Sep to 22:46 on Fri 18 Sep.",
          "fact": "2015-09-17T16:50:41Z → 2015-09-18T18:46:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 17th, 11:53–12:41 on the 18th.",
          "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 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: disputed → only-day · margin 29388 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Pañcamī, Abu Dhabi, 2015: Friday 18 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": "2015-09-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Ṛṣi Pañcamī 2015 falls on Friday 18 September. Pañcamī runs from 20:51 on Thu 17 Sep to 22:46 on Fri 18 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/surya-shashthi-bhadrapada",
      "festival": "surya-shashthi-bhadrapada",
      "name": "Sūrya Ṣaṣṭhī (Bhādrapada)",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36345,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2015-09-18T22:46:16+04:00",
          "utc": "2015-09-18T18:46:16Z",
          "ms": 1442601976149.013
        },
        "end": {
          "local": "2015-09-20T00:09:39+04:00",
          "utc": "2015-09-19T20:09:39Z",
          "ms": 1442693378931.4817
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-18T22:46:16+04:00",
          "utc": "2015-09-18T18:46:16Z",
          "ms": 1442601976149.013
        },
        "end": {
          "local": "2015-09-20T00:09:39+04:00",
          "utc": "2015-09-19T20:09:39Z",
          "ms": 1442693378931.4817
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-18",
          "window": {
            "start": {
              "local": "2015-09-18T11:52:32+04:00",
              "utc": "2015-09-18T07:52:32Z",
              "ms": 1442562751646.909
            },
            "end": {
              "local": "2015-09-18T12:40:32+04:00",
              "utc": "2015-09-18T08:40:32Z",
              "ms": 1442565631646.909
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-09-19",
          "window": {
            "start": {
              "local": "2015-09-19T11:52:10+04:00",
              "utc": "2015-09-19T07:52:10Z",
              "ms": 1442649130298.8252
            },
            "end": {
              "local": "2015-09-19T12:40:10+04:00",
              "utc": "2015-09-19T08:40:10Z",
              "ms": 1442652010298.8252
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 22:46 on Fri 18 Sep to 00:10 on Sun 20 Sep.",
          "fact": "2015-09-18T18:46:16Z → 2015-09-19T20:09:39Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 18th, 11:52–12:40 on the 19th.",
          "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 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: paraviddha → only-day · margin 36345 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Abu Dhabi, 2015: Saturday 19 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": "2015-09-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Sūrya Ṣaṣṭhī (Bhādrapada) 2015 falls on Saturday 19 September. Ṣaṣṭhī runs from 22:46 on Fri 18 Sep to 00:10 on Sun 20 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/muktabharana-vrata",
      "festival": "muktabharana-vrata",
      "name": "Muktābharaṇa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39474,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2015-09-20T00:09:39+04:00",
          "utc": "2015-09-19T20:09:39Z",
          "ms": 1442693378931.4817
        },
        "end": {
          "local": "2015-09-21T00:53:34+04:00",
          "utc": "2015-09-20T20:53:34Z",
          "ms": 1442782413835.7053
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-20T00:09:39+04:00",
          "utc": "2015-09-19T20:09:39Z",
          "ms": 1442693378931.4817
        },
        "end": {
          "local": "2015-09-21T00:53:34+04:00",
          "utc": "2015-09-20T20:53:34Z",
          "ms": 1442782413835.7053
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-20",
          "window": {
            "start": {
              "local": "2015-09-20T11:51:49+04:00",
              "utc": "2015-09-20T07:51:49Z",
              "ms": 1442735508975.1753
            },
            "end": {
              "local": "2015-09-20T12:39:49+04:00",
              "utc": "2015-09-20T08:39:49Z",
              "ms": 1442738388975.1753
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-09-21",
          "window": {
            "start": {
              "local": "2015-09-21T11:51:28+04:00",
              "utc": "2015-09-21T07:51:28Z",
              "ms": 1442821887694.6707
            },
            "end": {
              "local": "2015-09-21T12:39:28+04:00",
              "utc": "2015-09-21T08:39:28Z",
              "ms": 1442824767694.6707
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 00:10 on Sun 20 Sep to 00:54 on Mon 21 Sep.",
          "fact": "2015-09-19T20:09:39Z → 2015-09-20T20:53:34Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 20th, 11:51–12:39 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 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: purvaviddha → only-day · margin 39474 s"
        },
        {
          "step": "ruling",
          "text": "Muktābharaṇa Vrata, Abu Dhabi, 2015: Sunday 20 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": "2015-09-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Muktābharaṇa Vrata 2015 falls on Sunday 20 September. Saptamī runs from 00:10 on Sun 20 Sep to 00:54 on Mon 21 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/radhashtami",
      "festival": "radhashtami",
      "name": "Rādhāṣṭamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39474,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-09-21T00:53:34+04:00",
          "utc": "2015-09-20T20:53:34Z",
          "ms": 1442782413835.7053
        },
        "end": {
          "local": "2015-09-22T00:53:05+04:00",
          "utc": "2015-09-21T20:53:05Z",
          "ms": 1442868785350.848
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-21T00:53:34+04:00",
          "utc": "2015-09-20T20:53:34Z",
          "ms": 1442782413835.7053
        },
        "end": {
          "local": "2015-09-22T00:53:05+04:00",
          "utc": "2015-09-21T20:53:05Z",
          "ms": 1442868785350.848
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-21",
          "window": {
            "start": {
              "local": "2015-09-21T11:51:28+04:00",
              "utc": "2015-09-21T07:51:28Z",
              "ms": 1442821887694.6707
            },
            "end": {
              "local": "2015-09-21T12:39:28+04:00",
              "utc": "2015-09-21T08:39:28Z",
              "ms": 1442824767694.6707
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-09-22",
          "window": {
            "start": {
              "local": "2015-09-22T11:51:06+04:00",
              "utc": "2015-09-22T07:51:06Z",
              "ms": 1442908266476.6316
            },
            "end": {
              "local": "2015-09-22T12:39:06+04:00",
              "utc": "2015-09-22T08:39:06Z",
              "ms": 1442911146476.6316
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 00:54 on Mon 21 Sep to 00:53 on Tue 22 Sep.",
          "fact": "2015-09-20T20:53:34Z → 2015-09-21T20:53:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 21st, 11:51–12:39 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 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. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 39474 s"
        },
        {
          "step": "ruling",
          "text": "Rādhāṣṭamī, Abu Dhabi, 2015: Monday 21 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": "2015-09-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Rādhāṣṭamī 2015 falls on Monday 21 September. Aṣṭamī runs from 00:54 on Mon 21 Sep to 00:53 on Tue 22 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-09-24",
      "festival": "ekadashi",
      "name": "Parivartanī Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27470,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-09-23T22:33:56+04:00",
          "utc": "2015-09-23T18:33:56Z",
          "ms": 1443033235756.3083
        },
        "end": {
          "local": "2015-09-24T20:20:02+04:00",
          "utc": "2015-09-24T16:20:02Z",
          "ms": 1443111601729.1338
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-23T22:33:56+04:00",
          "utc": "2015-09-23T18:33:56Z",
          "ms": 1443033235756.3083
        },
        "end": {
          "local": "2015-09-24T20:20:02+04:00",
          "utc": "2015-09-24T16:20:02Z",
          "ms": 1443111601729.1338
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-09-24",
          "window": {
            "start": {
              "local": "2015-09-24T06:11:46+04:00",
              "utc": "2015-09-24T02:11:46Z",
              "ms": 1443060705983.06
            },
            "end": {
              "local": "2015-09-24T06:11:46+04:00",
              "utc": "2015-09-24T02:11:46Z",
              "ms": 1443060705983.06
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-09-25",
          "window": {
            "start": {
              "local": "2015-09-25T06:12:07+04:00",
              "utc": "2015-09-25T02:12:07Z",
              "ms": 1443147127498.4187
            },
            "end": {
              "local": "2015-09-25T06:12:07+04:00",
              "utc": "2015-09-25T02:12:07Z",
              "ms": 1443147127498.4187
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 22:34 on Wed 23 Sep to 20:20 on Thu 24 Sep.",
          "fact": "2015-09-23T18:33:56Z → 2015-09-24T16:20:02Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:12 on the 24th and 06:12 on the 25th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is 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": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 27470 s"
        },
        {
          "step": "ruling",
          "text": "Parivartanī Ekādaśī, Abu Dhabi, 2015: Thursday 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": "2015-09-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Parivartanī Ekādaśī 2015 falls on Thursday 24 September. Ekādaśī runs from 22:34 on Wed 23 Sep to 20:20 on Thu 24 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-09-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/vamana-jayanti",
      "festival": "vamana-jayanti",
      "name": "Vāmana Jayantī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17548,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2015-09-24T20:20:02+04:00",
          "utc": "2015-09-24T16:20:02Z",
          "ms": 1443111601729.1338
        },
        "end": {
          "local": "2015-09-25T17:30:32+04:00",
          "utc": "2015-09-25T13:30:32Z",
          "ms": 1443187831550.6455
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-24T20:20:02+04:00",
          "utc": "2015-09-24T16:20:02Z",
          "ms": 1443111601729.1338
        },
        "end": {
          "local": "2015-09-25T17:30:32+04:00",
          "utc": "2015-09-25T13:30:32Z",
          "ms": 1443187831550.6455
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-09-24",
          "window": {
            "start": {
              "local": "2015-09-24T11:50:24+04:00",
              "utc": "2015-09-24T07:50:24Z",
              "ms": 1443081024309.1719
            },
            "end": {
              "local": "2015-09-24T12:38:24+04:00",
              "utc": "2015-09-24T08:38:24Z",
              "ms": 1443083904309.1719
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-09-25",
          "window": {
            "start": {
              "local": "2015-09-25T11:50:03+04:00",
              "utc": "2015-09-25T07:50:03Z",
              "ms": 1443167403402.8472
            },
            "end": {
              "local": "2015-09-25T12:38:03+04:00",
              "utc": "2015-09-25T08:38:03Z",
              "ms": 1443170283402.8472
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 20:20 on Thu 24 Sep to 17:31 on Fri 25 Sep.",
          "fact": "2015-09-24T16:20:02Z → 2015-09-25T13:30:32Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 24th, 11:50–12:38 on the 25th.",
          "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 24th and 48 of 48 on the 25th.",
          "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 17548 s"
        },
        {
          "step": "ruling",
          "text": "Vāmana Jayantī, Abu Dhabi, 2015: Friday 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": "2015-09-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vāmana Jayantī 2015 falls on Friday 25 September. Dvādaśī runs from 20:20 on Thu 24 Sep to 17:31 on Fri 25 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-09-25",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2728,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-09-25T17:30:32+04:00",
          "utc": "2015-09-25T13:30:32Z",
          "ms": 1443187831550.6455
        },
        "end": {
          "local": "2015-09-26T14:13:06+04:00",
          "utc": "2015-09-26T10:13:06Z",
          "ms": 1443262386487.4126
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-25T17:30:32+04:00",
          "utc": "2015-09-25T13:30:32Z",
          "ms": 1443187831550.6455
        },
        "end": {
          "local": "2015-09-26T14:13:06+04:00",
          "utc": "2015-09-26T10:13:06Z",
          "ms": 1443262386487.4126
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-09-25",
          "window": {
            "start": {
              "local": "2015-09-25T18:15:59+04:00",
              "utc": "2015-09-25T14:15:59Z",
              "ms": 1443190559307.2756
            },
            "end": {
              "local": "2015-09-25T19:51:31+04:00",
              "utc": "2015-09-25T15:51:31Z",
              "ms": 1443196291286.9275
            }
          },
          "covered_min": 96,
          "window_min": 96,
          "qualifies": true
        },
        {
          "local_date": "2015-09-26",
          "window": {
            "start": {
              "local": "2015-09-26T18:14:56+04:00",
              "utc": "2015-09-26T14:14:56Z",
              "ms": 1443276896136.2644
            },
            "end": {
              "local": "2015-09-26T19:50:39+04:00",
              "utc": "2015-09-26T15:50:39Z",
              "ms": 1443282639447.5142
            }
          },
          "covered_min": 0,
          "window_min": 96,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:31 on Fri 25 Sep to 14:13 on Sat 26 Sep.",
          "fact": "2015-09-25T13:30:32Z → 2015-09-26T10:13:06Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–19:52 on the 25th, 18:15–19:51 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 96 of 96 minutes on the 25th and 0 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 2728 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Friday 25 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": "2015-09-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Friday 25 September. Trayodaśī runs from 17:31 on Fri 25 Sep to 14:13 on Sat 26 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-09-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ananta-chaturdashi",
      "festival": "ananta-chaturdashi",
      "name": "Ananta Caturdaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7172,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-09-26T14:13:06+04:00",
          "utc": "2015-09-26T10:13:06Z",
          "ms": 1443262386487.4126
        },
        "end": {
          "local": "2015-09-27T10:36:36+04:00",
          "utc": "2015-09-27T06:36:36Z",
          "ms": 1443335795738.3413
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-26T14:13:06+04:00",
          "utc": "2015-09-26T10:13:06Z",
          "ms": 1443262386487.4126
        },
        "end": {
          "local": "2015-09-27T10:36:36+04:00",
          "utc": "2015-09-27T06:36:36Z",
          "ms": 1443335795738.3413
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "2015-09-26",
          "window": {
            "start": {
              "local": "2015-09-26T06:12:29+04:00",
              "utc": "2015-09-26T02:12:29Z",
              "ms": 1443233549154.6653
            },
            "end": {
              "local": "2015-09-26T08:36:59+04:00",
              "utc": "2015-09-26T04:36:59Z",
              "ms": 1443242218550.985
            }
          },
          "covered_min": 0,
          "window_min": 144,
          "qualifies": false
        },
        {
          "local_date": "2015-09-27",
          "window": {
            "start": {
              "local": "2015-09-27T06:12:51+04:00",
              "utc": "2015-09-27T02:12:51Z",
              "ms": 1443319970970.637
            },
            "end": {
              "local": "2015-09-27T08:37:03+04:00",
              "utc": "2015-09-27T04:37:03Z",
              "ms": 1443328623406.989
            }
          },
          "covered_min": 144,
          "window_min": 144,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 14:13 on Sat 26 Sep to 10:37 on Sun 27 Sep.",
          "fact": "2015-09-26T10:13:06Z → 2015-09-27T06:36:36Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:12–08:37 on the 26th, 06:13–08:37 on the 27th.",
          "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 0 of 144 minutes on the 26th and 144 of 144 on the 27th.",
          "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 7172 s"
        },
        {
          "step": "ruling",
          "text": "Ananta Caturdaśī, Abu Dhabi, 2015: Sunday 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": "2015-09-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Ananta Caturdaśī 2015 falls on Sunday 27 September. Caturdaśī runs from 14:13 on Sat 26 Sep to 10:37 on Sun 27 Sep and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-09-30",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-09-30",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "absent-unstated"
      ],
      "boundary_margin_s": 38,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-09-30T20:13:15+04:00",
          "utc": "2015-09-30T16:13:15Z",
          "ms": 1443629595150.923
        },
        "end": {
          "local": "2015-10-01T17:26:18+04:00",
          "utc": "2015-10-01T13:26:18Z",
          "ms": 1443705977994.897
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-09-30T20:13:15+04:00",
          "utc": "2015-09-30T16:13:15Z",
          "ms": 1443629595150.923
        },
        "end": {
          "local": "2015-10-01T17:26:18+04:00",
          "utc": "2015-10-01T13:26:18Z",
          "ms": 1443705977994.897
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-09-30",
          "window": {
            "start": {
              "local": "2015-09-30T20:12:37+04:00",
              "utc": "2015-09-30T16:12:37Z",
              "ms": 1443629556855.412
            },
            "end": {
              "local": "2015-09-30T20:12:37+04:00",
              "utc": "2015-09-30T16:12:37Z",
              "ms": 1443629556855.412
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-10-01",
          "window": {
            "start": {
              "local": "2015-10-01T21:03:19+04:00",
              "utc": "2015-10-01T17:03:19Z",
              "ms": 1443718998626.711
            },
            "end": {
              "local": "2015-10-01T21:03:19+04:00",
              "utc": "2015-10-01T17:03:19Z",
              "ms": 1443718998626.711
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:13 on Wed 30 Sep to 17:26 on Thu 1 Oct.",
          "fact": "2015-09-30T16:13:15Z → 2015-10-01T13:26:18Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:13 on the 30th and 21:03 on the 1st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not 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": "Neither moonrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 38 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Wednesday 30 September.",
          "fact": "confidence: boundary (margin, 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": "2015-09-30",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-09-30",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Wednesday 30 September. Caturthī runs from 20:13 on Wed 30 Sep to 17:26 on Thu 1 Oct, and is current at moonrise on neither day. It is 0 min 38 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-09-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/chandra-shashthi",
      "festival": "chandra-shashthi",
      "name": "Candra Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23963,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2015-10-02T15:16:06+04:00",
          "utc": "2015-10-02T11:16:06Z",
          "ms": 1443784566044.9592
        },
        "end": {
          "local": "2015-10-03T13:48:51+04:00",
          "utc": "2015-10-03T09:48:51Z",
          "ms": 1443865730983.2085
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-02T15:16:06+04:00",
          "utc": "2015-10-02T11:16:06Z",
          "ms": 1443784566044.9592
        },
        "end": {
          "local": "2015-10-03T13:48:51+04:00",
          "utc": "2015-10-03T09:48:51Z",
          "ms": 1443865730983.2085
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-10-02",
          "window": {
            "start": {
              "local": "2015-10-02T21:55:29+04:00",
              "utc": "2015-10-02T17:55:29Z",
              "ms": 1443808529222.6353
            },
            "end": {
              "local": "2015-10-02T21:55:29+04:00",
              "utc": "2015-10-02T17:55:29Z",
              "ms": 1443808529222.6353
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-10-03",
          "window": {
            "start": {
              "local": "2015-10-03T22:48:42+04:00",
              "utc": "2015-10-03T18:48:42Z",
              "ms": 1443898122457.642
            },
            "end": {
              "local": "2015-10-03T22:48:42+04:00",
              "utc": "2015-10-03T18:48:42Z",
              "ms": 1443898122457.642
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 15:16 on Fri 2 Oct to 13:49 on Sat 3 Oct.",
          "fact": "2015-10-02T11:16:06Z → 2015-10-03T09:48:51Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:55 on the 2nd and 22:49 on the 3rd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be current at moonrise. It is on the 2nd and is not on the 3rd.",
          "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 23963 s"
        },
        {
          "step": "ruling",
          "text": "Candra Ṣaṣṭhī, Abu Dhabi, 2015: Friday 2 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": "2015-10-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Candra Ṣaṣṭhī 2015 falls on Friday 2 October. Ṣaṣṭhī runs from 15:16 on Fri 2 Oct to 13:49 on Sat 3 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/jitashtami",
      "festival": "jitashtami",
      "name": "Jitāṣṭamī",
      "everyday": "Jitiya",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17408,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-10-04T13:08:22+04:00",
          "utc": "2015-10-04T09:08:22Z",
          "ms": 1443949702218.466
        },
        "end": {
          "local": "2015-10-05T13:15:31+04:00",
          "utc": "2015-10-05T09:15:31Z",
          "ms": 1444036531475.8591
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-04T13:08:22+04:00",
          "utc": "2015-10-04T09:08:22Z",
          "ms": 1443949702218.466
        },
        "end": {
          "local": "2015-10-05T13:15:31+04:00",
          "utc": "2015-10-05T09:15:31Z",
          "ms": 1444036531475.8591
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-10-04",
          "window": {
            "start": {
              "local": "2015-10-04T18:06:40+04:00",
              "utc": "2015-10-04T14:06:40Z",
              "ms": 1443967600077.1975
            },
            "end": {
              "local": "2015-10-04T19:43:54+04:00",
              "utc": "2015-10-04T15:43:54Z",
              "ms": 1443973433884.4927
            }
          },
          "covered_min": 97,
          "window_min": 97,
          "qualifies": true
        },
        {
          "local_date": "2015-10-05",
          "window": {
            "start": {
              "local": "2015-10-05T18:05:40+04:00",
              "utc": "2015-10-05T14:05:40Z",
              "ms": 1444053939678.392
            },
            "end": {
              "local": "2015-10-05T19:43:05+04:00",
              "utc": "2015-10-05T15:43:05Z",
              "ms": 1444059784753.4463
            }
          },
          "covered_min": 0,
          "window_min": 97,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 13:08 on Sun 4 Oct to 13:16 on Mon 5 Oct.",
          "fact": "2015-10-04T09:08:22Z → 2015-10-05T09:15:31Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:44 on the 4th, 18:06–19:43 on the 5th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during pradoṣa. It covers 97 of 97 minutes on the 4th and 0 of 97 on the 5th.",
          "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 17408 s"
        },
        {
          "step": "ruling",
          "text": "Jitāṣṭamī, Abu Dhabi, 2015: Sunday 4 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": "2015-10-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Jitāṣṭamī (Jitiya) 2015 falls on Sunday 4 October. Aṣṭamī runs from 13:08 on Sun 4 Oct to 13:16 on Mon 5 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/mahalakshmi-vrata-samapana",
      "festival": "mahalakshmi-vrata-samapana",
      "name": "Mahālakṣmī Vrata Samāpana",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38037,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-10-04T13:08:22+04:00",
          "utc": "2015-10-04T09:08:22Z",
          "ms": 1443949702218.466
        },
        "end": {
          "local": "2015-10-05T13:15:31+04:00",
          "utc": "2015-10-05T09:15:31Z",
          "ms": 1444036531475.8591
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-04T13:08:22+04:00",
          "utc": "2015-10-04T09:08:22Z",
          "ms": 1443949702218.466
        },
        "end": {
          "local": "2015-10-05T13:15:31+04:00",
          "utc": "2015-10-05T09:15:31Z",
          "ms": 1444036531475.8591
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-10-04",
          "window": {
            "start": {
              "local": "2015-10-04T23:42:19+04:00",
              "utc": "2015-10-04T19:42:19Z",
              "ms": 1443987739254.551
            },
            "end": {
              "local": "2015-10-04T23:42:19+04:00",
              "utc": "2015-10-04T19:42:19Z",
              "ms": 1443987739254.551
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-10-05",
          "window": {
            "start": {
              "local": "2015-10-06T00:35:40+04:00",
              "utc": "2015-10-05T20:35:40Z",
              "ms": 1444077340058.5522
            },
            "end": {
              "local": "2015-10-06T00:35:40+04:00",
              "utc": "2015-10-05T20:35:40Z",
              "ms": 1444077340058.5522
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 13:08 on Sun 4 Oct to 13:16 on Mon 5 Oct.",
          "fact": "2015-10-04T09:08:22Z → 2015-10-05T09:15:31Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 23:42 on the 4th and 00:36 on the 5th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is on the 4th and is not on the 5th.",
          "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 38037 s"
        },
        {
          "step": "ruling",
          "text": "Mahālakṣmī Vrata Samāpana, Abu Dhabi, 2015: Sunday 4 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": "2015-10-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Mahālakṣmī Vrata Samāpana 2015 falls on Sunday 4 October. Aṣṭamī runs from 13:08 on Sun 4 Oct to 13:16 on Mon 5 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-10-08",
      "festival": "ekadashi",
      "name": "Indirā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33791,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-10-07T15:39:54+04:00",
          "utc": "2015-10-07T11:39:54Z",
          "ms": 1444217993563.2336
        },
        "end": {
          "local": "2015-10-08T17:43:28+04:00",
          "utc": "2015-10-08T13:43:28Z",
          "ms": 1444311808256.8157
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-07T15:39:54+04:00",
          "utc": "2015-10-07T11:39:54Z",
          "ms": 1444217993563.2336
        },
        "end": {
          "local": "2015-10-08T17:43:28+04:00",
          "utc": "2015-10-08T13:43:28Z",
          "ms": 1444311808256.8157
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-10-07",
          "window": {
            "start": {
              "local": "2015-10-07T06:16:42+04:00",
              "utc": "2015-10-07T02:16:42Z",
              "ms": 1444184202180.0818
            },
            "end": {
              "local": "2015-10-07T06:16:42+04:00",
              "utc": "2015-10-07T02:16:42Z",
              "ms": 1444184202180.0818
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-10-08",
          "window": {
            "start": {
              "local": "2015-10-08T06:17:07+04:00",
              "utc": "2015-10-08T02:17:07Z",
              "ms": 1444270626959.0806
            },
            "end": {
              "local": "2015-10-08T06:17:07+04:00",
              "utc": "2015-10-08T02:17:07Z",
              "ms": 1444270626959.0806
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:40 on Wed 7 Oct to 17:43 on Thu 8 Oct.",
          "fact": "2015-10-07T11:39:54Z → 2015-10-08T13:43:28Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:17 on the 7th and 06:17 on the 8th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 7th and is on the 8th.",
          "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 33791 s"
        },
        {
          "step": "ruling",
          "text": "Indirā Ekādaśī, Abu Dhabi, 2015: Thursday 8 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": "2015-10-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Indirā Ekādaśī 2015 falls on Thursday 8 October. Ekādaśī runs from 15:40 on Wed 7 Oct to 17:43 on Thu 8 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-10-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-10-10",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1756,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-10-09T20:09:09+04:00",
          "utc": "2015-10-09T16:09:09Z",
          "ms": 1444406948725.5479
        },
        "end": {
          "local": "2015-10-10T22:47:12+04:00",
          "utc": "2015-10-10T18:47:12Z",
          "ms": 1444502832002.3208
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-09T20:09:09+04:00",
          "utc": "2015-10-09T16:09:09Z",
          "ms": 1444406948725.5479
        },
        "end": {
          "local": "2015-10-10T22:47:12+04:00",
          "utc": "2015-10-10T18:47:12Z",
          "ms": 1444502832002.3208
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-10-09",
          "window": {
            "start": {
              "local": "2015-10-09T18:01:43+04:00",
              "utc": "2015-10-09T14:01:43Z",
              "ms": 1444399302837.7766
            },
            "end": {
              "local": "2015-10-09T19:39:53+04:00",
              "utc": "2015-10-09T15:39:53Z",
              "ms": 1444405192803.0576
            }
          },
          "covered_min": 0,
          "window_min": 98,
          "qualifies": false
        },
        {
          "local_date": "2015-10-10",
          "window": {
            "start": {
              "local": "2015-10-10T18:00:45+04:00",
              "utc": "2015-10-10T14:00:45Z",
              "ms": 1444485644942.5942
            },
            "end": {
              "local": "2015-10-10T19:39:06+04:00",
              "utc": "2015-10-10T15:39:06Z",
              "ms": 1444491546074.8938
            }
          },
          "covered_min": 98,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 20:09 on Fri 9 Oct to 22:47 on Sat 10 Oct.",
          "fact": "2015-10-09T16:09:09Z → 2015-10-10T18:47:12Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:02–19:40 on the 9th, 18:01–19:39 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 98 minutes on the 9th and 98 of 98 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 1756 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Saturday 10 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": "2015-10-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-10",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Saturday 10 October. Trayodaśī runs from 20:09 on Fri 9 Oct to 22:47 on Sat 10 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-10-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-10-10",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-10",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 3320,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-10-10T22:47:12+04:00",
          "utc": "2015-10-10T18:47:12Z",
          "ms": 1444502832002.3208
        },
        "end": {
          "local": "2015-10-12T01:28:38+04:00",
          "utc": "2015-10-11T21:28:38Z",
          "ms": 1444598918383.9473
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-10T22:47:12+04:00",
          "utc": "2015-10-10T18:47:12Z",
          "ms": 1444502832002.3208
        },
        "end": {
          "local": "2015-10-12T01:28:38+04:00",
          "utc": "2015-10-11T21:28:38Z",
          "ms": 1444598918383.9473
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-10-10",
          "window": {
            "start": {
              "local": "2015-10-10T23:45:34+04:00",
              "utc": "2015-10-10T19:45:34Z",
              "ms": 1444506334188.7178
            },
            "end": {
              "local": "2015-10-11T00:33:34+04:00",
              "utc": "2015-10-10T20:33:34Z",
              "ms": 1444509214188.7178
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-10-11",
          "window": {
            "start": {
              "local": "2015-10-11T23:45:19+04:00",
              "utc": "2015-10-11T19:45:19Z",
              "ms": 1444592718645.8188
            },
            "end": {
              "local": "2015-10-12T00:33:19+04:00",
              "utc": "2015-10-11T20:33:19Z",
              "ms": 1444595598645.8188
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 22:47 on Sat 10 Oct to 01:29 on Mon 12 Oct.",
          "fact": "2015-10-10T18:47:12Z → 2015-10-11T21:28:38Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:46–00:34 on the 10th, 23:45–00:33 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 48 of 48 on the 11th.",
          "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 3320 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Saturday 10 October.",
          "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": "2015-10-10",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-11",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Saturday 10 October. Caturdaśī runs from 22:47 on Sat 10 Oct to 01:29 on Mon 12 Oct 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/abu-dhabi/festivals/2015/shivaratri?on=2015-10-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/mahalaya-amavasya",
      "festival": "mahalaya-amavasya",
      "name": "Mahālaya Amāvāsyā",
      "everyday": "Sarvapitṛ Amāvāsyā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33165,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2015-10-12T01:28:38+04:00",
          "utc": "2015-10-11T21:28:38Z",
          "ms": 1444598918383.9473
        },
        "end": {
          "local": "2015-10-13T04:05:43+04:00",
          "utc": "2015-10-13T00:05:43Z",
          "ms": 1444694742629.71
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-12T01:28:38+04:00",
          "utc": "2015-10-11T21:28:38Z",
          "ms": 1444598918383.9473
        },
        "end": {
          "local": "2015-10-13T04:05:43+04:00",
          "utc": "2015-10-13T00:05:43Z",
          "ms": 1444694742629.71
        }
      },
      "kaala": "aparahna",
      "days": [
        {
          "local_date": "2015-10-12",
          "window": {
            "start": {
              "local": "2015-10-12T13:18:50+04:00",
              "utc": "2015-10-12T09:18:50Z",
              "ms": 1444641530409.0876
            },
            "end": {
              "local": "2015-10-12T15:38:51+04:00",
              "utc": "2015-10-12T11:38:51Z",
              "ms": 1444649930655.8303
            }
          },
          "covered_min": 140,
          "window_min": 140,
          "qualifies": true
        },
        {
          "local_date": "2015-10-13",
          "window": {
            "start": {
              "local": "2015-10-13T13:18:27+04:00",
              "utc": "2015-10-13T09:18:27Z",
              "ms": 1444727907398.3962
            },
            "end": {
              "local": "2015-10-13T15:38:11+04:00",
              "utc": "2015-10-13T11:38:11Z",
              "ms": 1444736291102.2231
            }
          },
          "covered_min": 0,
          "window_min": 140,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 01:29 on Mon 12 Oct to 04:06 on Tue 13 Oct.",
          "fact": "2015-10-11T21:28:38Z → 2015-10-13T00:05:43Z"
        },
        {
          "step": "kaala",
          "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:19–15:39 on the 12th, 13:18–15:38 on the 13th.",
          "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during aparāhṇa. It covers 140 of 140 minutes on the 12th and 0 of 140 on the 13th.",
          "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 33165 s"
        },
        {
          "step": "ruling",
          "text": "Mahālaya Amāvāsyā, Abu Dhabi, 2015: Monday 12 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": "2015-10-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Mahālaya Amāvāsyā 2015 falls on Monday 12 October. Amāvasyā runs from 01:29 on Mon 12 Oct to 04:06 on Tue 13 Oct and covers all of aparāhṇa that afternoon.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/navaratra-arambha",
      "festival": "navaratra-arambha",
      "name": "Navarātrārambha",
      "everyday": "Navratri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18744,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2015-10-13T04:05:43+04:00",
          "utc": "2015-10-13T00:05:43Z",
          "ms": 1444694742629.71
        },
        "end": {
          "local": "2015-10-14T06:31:57+04:00",
          "utc": "2015-10-14T02:31:57Z",
          "ms": 1444789917466.0474
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-13T04:05:43+04:00",
          "utc": "2015-10-13T00:05:43Z",
          "ms": 1444694742629.71
        },
        "end": {
          "local": "2015-10-14T06:31:57+04:00",
          "utc": "2015-10-14T02:31:57Z",
          "ms": 1444789917466.0474
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-10-13",
          "window": {
            "start": {
              "local": "2015-10-13T11:44:36+04:00",
              "utc": "2015-10-13T07:44:36Z",
              "ms": 1444722275546.483
            },
            "end": {
              "local": "2015-10-13T12:32:36+04:00",
              "utc": "2015-10-13T08:32:36Z",
              "ms": 1444725155546.483
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-10-14",
          "window": {
            "start": {
              "local": "2015-10-14T11:44:21+04:00",
              "utc": "2015-10-14T07:44:21Z",
              "ms": 1444808661326.5195
            },
            "end": {
              "local": "2015-10-14T12:32:21+04:00",
              "utc": "2015-10-14T08:32:21Z",
              "ms": 1444811541326.5195
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 04:06 on Tue 13 Oct to 06:32 on Wed 14 Oct.",
          "fact": "2015-10-13T00:05:43Z → 2015-10-14T02:31:57Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 13th, 11:44–12:32 on the 14th.",
          "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 13th and 0 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: paraviddha → only-day · margin 18744 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha, Abu Dhabi, 2015: Tuesday 13 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": "2015-10-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Navarātrārambha (Navratri) 2015 falls on Tuesday 13 October. Pratipadā runs from 04:06 on Tue 13 Oct to 06:32 on Wed 14 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-10-16",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-16",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 646,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-10-16T10:30:56+04:00",
          "utc": "2015-10-16T06:30:56Z",
          "ms": 1444977056323.2773
        },
        "end": {
          "local": "2015-10-17T11:54:28+04:00",
          "utc": "2015-10-17T07:54:28Z",
          "ms": 1445068468094.7793
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-16T10:30:56+04:00",
          "utc": "2015-10-16T06:30:56Z",
          "ms": 1444977056323.2773
        },
        "end": {
          "local": "2015-10-17T11:54:28+04:00",
          "utc": "2015-10-17T07:54:28Z",
          "ms": 1445068468094.7793
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-10-16",
          "window": {
            "start": {
              "local": "2015-10-16T11:43:55+04:00",
              "utc": "2015-10-16T07:43:55Z",
              "ms": 1444981434504.5352
            },
            "end": {
              "local": "2015-10-16T12:31:55+04:00",
              "utc": "2015-10-16T08:31:55Z",
              "ms": 1444984314504.5352
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-10-17",
          "window": {
            "start": {
              "local": "2015-10-17T11:43:42+04:00",
              "utc": "2015-10-17T07:43:42Z",
              "ms": 1445067821932.002
            },
            "end": {
              "local": "2015-10-17T12:31:42+04:00",
              "utc": "2015-10-17T08:31:42Z",
              "ms": 1445070701932.002
            }
          },
          "covered_min": 11,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:31 on Fri 16 Oct to 11:54 on Sat 17 Oct.",
          "fact": "2015-10-16T06:30:56Z → 2015-10-17T07:54:28Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 16th, 11:44–12:32 on the 17th.",
          "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 16th and 11 of 48 on the 17th.",
          "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 646 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Friday 16 October.",
          "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": "2015-10-16",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-16",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Friday 16 October. Caturthī runs from 10:31 on Fri 16 Oct to 11:54 on Sat 17 Oct and covers all of madhyāhna that midday. It also reaches the next midday for 11 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/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-10-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/durga-saptami",
      "festival": "durga-saptami",
      "name": "Durgā Saptamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20688,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2015-10-19T13:08:58+04:00",
          "utc": "2015-10-19T09:08:58Z",
          "ms": 1445245737739.7136
        },
        "end": {
          "local": "2015-10-20T12:53:19+04:00",
          "utc": "2015-10-20T08:53:19Z",
          "ms": 1445331198888.6301
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-19T13:08:58+04:00",
          "utc": "2015-10-19T09:08:58Z",
          "ms": 1445245737739.7136
        },
        "end": {
          "local": "2015-10-20T12:53:19+04:00",
          "utc": "2015-10-20T08:53:19Z",
          "ms": 1445331198888.6301
        }
      },
      "kaala": "udaya-1",
      "days": [
        {
          "local_date": "2015-10-19",
          "window": {
            "start": {
              "local": "2015-10-19T06:22:04+04:00",
              "utc": "2015-10-19T02:22:04Z",
              "ms": 1445221324407.6711
            },
            "end": {
              "local": "2015-10-19T07:08:06+04:00",
              "utc": "2015-10-19T03:08:06Z",
              "ms": 1445224086291.5283
            }
          },
          "covered_min": 0,
          "window_min": 46,
          "qualifies": false
        },
        {
          "local_date": "2015-10-20",
          "window": {
            "start": {
              "local": "2015-10-20T06:22:34+04:00",
              "utc": "2015-10-20T02:22:34Z",
              "ms": 1445307753878.0576
            },
            "end": {
              "local": "2015-10-20T07:08:30+04:00",
              "utc": "2015-10-20T03:08:30Z",
              "ms": 1445310510393.3594
            }
          },
          "covered_min": 46,
          "window_min": 46,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 13:09 on Mon 19 Oct to 12:53 on Tue 20 Oct.",
          "fact": "2015-10-19T09:08:58Z → 2015-10-20T08:53:19Z"
        },
        {
          "step": "kaala",
          "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:22–07:08 on the 19th, 06:23–07:09 on the 20th.",
          "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 0 of 46 minutes on the 19th and 46 of 46 on the 20th.",
          "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 20688 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Saptamī, Abu Dhabi, 2015: Tuesday 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": "2015-10-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Durgā Saptamī 2015 falls on Tuesday 20 October. Saptamī runs from 13:09 on Mon 19 Oct to 12:53 on Tue 20 Oct and covers all of the first muhūrta after sunrise that morning.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/mahashtami",
      "festival": "mahashtami",
      "name": "Mahāṣṭamī",
      "everyday": "Durga Ashtami",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1013,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-10-20T12:53:19+04:00",
          "utc": "2015-10-20T08:53:19Z",
          "ms": 1445331198888.6301
        },
        "end": {
          "local": "2015-10-21T11:59:50+04:00",
          "utc": "2015-10-21T07:59:50Z",
          "ms": 1445414390427.9941
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-20T12:53:19+04:00",
          "utc": "2015-10-20T08:53:19Z",
          "ms": 1445331198888.6301
        },
        "end": {
          "local": "2015-10-21T11:59:50+04:00",
          "utc": "2015-10-21T07:59:50Z",
          "ms": 1445414390427.9941
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-10-20",
          "window": {
            "start": {
              "local": "2015-10-20T11:43:08+04:00",
              "utc": "2015-10-20T07:43:08Z",
              "ms": 1445326987742.8213
            },
            "end": {
              "local": "2015-10-20T12:31:08+04:00",
              "utc": "2015-10-20T08:31:08Z",
              "ms": 1445329867742.8213
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-10-21",
          "window": {
            "start": {
              "local": "2015-10-21T11:42:58+04:00",
              "utc": "2015-10-21T07:42:58Z",
              "ms": 1445413377571.3286
            },
            "end": {
              "local": "2015-10-21T12:30:58+04:00",
              "utc": "2015-10-21T08:30:58Z",
              "ms": 1445416257571.3286
            }
          },
          "covered_min": 17,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 12:53 on Tue 20 Oct to 12:00 on Wed 21 Oct.",
          "fact": "2015-10-20T08:53:19Z → 2015-10-21T07:59:50Z"
        },
        {
          "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": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 17 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 1013 s"
        },
        {
          "step": "ruling",
          "text": "Mahāṣṭamī, Abu Dhabi, 2015: Wednesday 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": "2015-10-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Mahāṣṭamī (Durga Ashtami) 2015 falls on Wednesday 21 October. Aṣṭamī runs from 12:53 on Tue 20 Oct to 12:00 on Wed 21 Oct and covers 17 of 48 minutes of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/mahanavami",
      "festival": "mahanavami",
      "name": "Mahānavamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1013,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2015-10-21T11:59:50+04:00",
          "utc": "2015-10-21T07:59:50Z",
          "ms": 1445414390427.9941
        },
        "end": {
          "local": "2015-10-22T10:28:38+04:00",
          "utc": "2015-10-22T06:28:38Z",
          "ms": 1445495317590.5205
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-21T11:59:50+04:00",
          "utc": "2015-10-21T07:59:50Z",
          "ms": 1445414390427.9941
        },
        "end": {
          "local": "2015-10-22T10:28:38+04:00",
          "utc": "2015-10-22T06:28:38Z",
          "ms": 1445495317590.5205
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-10-21",
          "window": {
            "start": {
              "local": "2015-10-21T11:42:58+04:00",
              "utc": "2015-10-21T07:42:58Z",
              "ms": 1445413377571.3286
            },
            "end": {
              "local": "2015-10-21T12:30:58+04:00",
              "utc": "2015-10-21T08:30:58Z",
              "ms": 1445416257571.3286
            }
          },
          "covered_min": 31,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-10-22",
          "window": {
            "start": {
              "local": "2015-10-22T11:42:48+04:00",
              "utc": "2015-10-22T07:42:48Z",
              "ms": 1445499768037.3242
            },
            "end": {
              "local": "2015-10-22T12:30:48+04:00",
              "utc": "2015-10-22T08:30:48Z",
              "ms": 1445502648037.3242
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 12:00 on Wed 21 Oct to 10:29 on Thu 22 Oct.",
          "fact": "2015-10-21T07:59:50Z → 2015-10-22T06:28:38Z"
        },
        {
          "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": "Navamī must be present during madhyāhna. It covers 31 of 48 minutes on the 21st and 0 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 1013 s"
        },
        {
          "step": "ruling",
          "text": "Mahānavamī, Abu Dhabi, 2015: Wednesday 21 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": "2015-10-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Mahānavamī 2015 falls on Wednesday 21 October. Navamī runs from 12:00 on Wed 21 Oct to 10:29 on Thu 22 Oct and covers 31 of 48 minutes of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vijaya-dashami",
      "festival": "vijaya-dashami",
      "name": "Vijayā Daśamī",
      "everyday": "Dussehra",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5398,
      "anga": {
        "type": "tithi",
        "index": 9,
        "key": "dashami",
        "name": "Daśamī",
        "start": {
          "local": "2015-10-22T10:28:38+04:00",
          "utc": "2015-10-22T06:28:38Z",
          "ms": 1445495317590.5205
        },
        "end": {
          "local": "2015-10-23T08:21:40+04:00",
          "utc": "2015-10-23T04:21:40Z",
          "ms": 1445574100274.6763
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "conjunction",
        "start": {
          "local": "2015-10-22T10:28:38+04:00",
          "utc": "2015-10-22T06:28:38Z",
          "ms": 1445495317590.5205
        },
        "end": {
          "local": "2015-10-22T11:58:36+04:00",
          "utc": "2015-10-22T07:58:36Z",
          "ms": 1445500715754.5576
        },
        "nakshatra": {
          "type": "nakshatra",
          "index": 21,
          "key": "shravana",
          "name": "Śravaṇa",
          "start": {
            "local": "2015-10-21T12:49:44+04:00",
            "utc": "2015-10-21T08:49:44Z",
            "ms": 1445417383880.962
          },
          "end": {
            "local": "2015-10-22T11:58:36+04:00",
            "utc": "2015-10-22T07:58:36Z",
            "ms": 1445500715754.5576
          }
        }
      },
      "kaala": "daytime",
      "days": [
        {
          "local_date": "2015-10-21",
          "window": {
            "start": {
              "local": "2015-10-21T06:23:04+04:00",
              "utc": "2015-10-21T02:23:04Z",
              "ms": 1445394183774.7546
            },
            "end": {
              "local": "2015-10-21T17:50:51+04:00",
              "utc": "2015-10-21T13:50:51Z",
              "ms": 1445435451367.9023
            }
          },
          "covered_min": 0,
          "window_min": 688,
          "qualifies": false
        },
        {
          "local_date": "2015-10-22",
          "window": {
            "start": {
              "local": "2015-10-22T06:23:34+04:00",
              "utc": "2015-10-22T02:23:34Z",
              "ms": 1445480614102.1628
            },
            "end": {
              "local": "2015-10-22T17:50:02+04:00",
              "utc": "2015-10-22T13:50:02Z",
              "ms": 1445521801972.4854
            }
          },
          "covered_min": 90,
          "window_min": 686,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Daśamī runs from 10:29 on Thu 22 Oct to 08:22 on Fri 23 Oct, and Śravaṇa from 12:50 on Wed 21 Oct to 11:59 on Thu 22 Oct. They are together from 10:29 on Thu 22 Oct to 11:59 on Thu 22 Oct.",
          "fact": "2015-10-22T06:28:38Z → 2015-10-22T07:58:36Z"
        },
        {
          "step": "kaala",
          "text": "The day time is sunrise to sunset: 06:23–17:51 on the 21st, 06:24–17:50 on the 22nd.",
          "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 688 minutes on the 21st and 90 of 686 on the 22nd.",
          "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 5398 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Daśamī, Abu Dhabi, 2015: Thursday 22 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vijaya-dashami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara."
          }
        ],
        "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.",
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day",
        "conjunction": {
          "nakshatra": "Śravaṇa",
          "kaala": "daytime"
        }
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-10-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vijayā Daśamī (Dussehra) 2015 falls on Thursday 22 October. Daśamī runs from 10:29 on Thu 22 Oct to 08:22 on Fri 23 Oct and is with Śravaṇa in the day time that day, for 90 minutes.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-10-23",
      "festival": "ekadashi",
      "name": "Pāśāṅkuśā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2502,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-10-23T08:21:40+04:00",
          "utc": "2015-10-23T04:21:40Z",
          "ms": 1445574100274.6763
        },
        "end": {
          "local": "2015-10-24T05:42:54+04:00",
          "utc": "2015-10-24T01:42:54Z",
          "ms": 1445650974277.4722
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-23T08:21:40+04:00",
          "utc": "2015-10-23T04:21:40Z",
          "ms": 1445574100274.6763
        },
        "end": {
          "local": "2015-10-24T05:42:54+04:00",
          "utc": "2015-10-24T01:42:54Z",
          "ms": 1445650974277.4722
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-10-23",
          "window": {
            "start": {
              "local": "2015-10-23T06:24:05+04:00",
              "utc": "2015-10-23T02:24:05Z",
              "ms": 1445567044865.0667
            },
            "end": {
              "local": "2015-10-23T06:24:05+04:00",
              "utc": "2015-10-23T02:24:05Z",
              "ms": 1445567044865.0667
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-10-24",
          "window": {
            "start": {
              "local": "2015-10-24T06:24:36+04:00",
              "utc": "2015-10-24T02:24:36Z",
              "ms": 1445653476068.9004
            },
            "end": {
              "local": "2015-10-24T06:24:36+04:00",
              "utc": "2015-10-24T02:24:36Z",
              "ms": 1445653476068.9004
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:22 on Fri 23 Oct to 05:43 on Sat 24 Oct.",
          "fact": "2015-10-23T04:21:40Z → 2015-10-24T01:42:54Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:24 on the 23rd and 06:25 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 not on the 24th.",
          "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 2502 s"
        },
        {
          "step": "ruling",
          "text": "Pāśāṅkuśā Ekādaśī, Abu Dhabi, 2015: Friday 23 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": "2015-10-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Pāśāṅkuśā Ekādaśī 2015 falls on Friday 23 October. Ekādaśī runs from 08:22 on Fri 23 Oct to 05:43 on Sat 24 Oct, and is current at sunrise on neither day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-10-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-10-25",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13536,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-10-25T02:38:02+04:00",
          "utc": "2015-10-24T22:38:02Z",
          "ms": 1445726282340.3625
        },
        "end": {
          "local": "2015-10-25T23:14:19+04:00",
          "utc": "2015-10-25T19:14:19Z",
          "ms": 1445800458943.5405
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-25T02:38:02+04:00",
          "utc": "2015-10-24T22:38:02Z",
          "ms": 1445726282340.3625
        },
        "end": {
          "local": "2015-10-25T23:14:19+04:00",
          "utc": "2015-10-25T19:14:19Z",
          "ms": 1445800458943.5405
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-10-24",
          "window": {
            "start": {
              "local": "2015-10-24T17:48:26+04:00",
              "utc": "2015-10-24T13:48:26Z",
              "ms": 1445694505822.4294
            },
            "end": {
              "local": "2015-10-24T19:29:19+04:00",
              "utc": "2015-10-24T15:29:19Z",
              "ms": 1445700559408.7637
            }
          },
          "covered_min": 0,
          "window_min": 101,
          "qualifies": false
        },
        {
          "local_date": "2015-10-25",
          "window": {
            "start": {
              "local": "2015-10-25T17:47:39+04:00",
              "utc": "2015-10-25T13:47:39Z",
              "ms": 1445780859123.8625
            },
            "end": {
              "local": "2015-10-25T19:28:43+04:00",
              "utc": "2015-10-25T15:28:43Z",
              "ms": 1445786923217.3809
            }
          },
          "covered_min": 101,
          "window_min": 101,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 02:38 on Sun 25 Oct to 23:14 on Sun 25 Oct.",
          "fact": "2015-10-24T22:38:02Z → 2015-10-25T19:14:19Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:48–19:29 on the 24th, 17:48–19:29 on the 25th.",
          "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 101 minutes on the 24th and 101 of 101 on the 25th.",
          "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 13536 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Sunday 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": "2015-10-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Sunday 25 October. Trayodaśī runs from 02:38 on Sun 25 Oct to 23:14 on Sun 25 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-10-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/karaka-chaturthi",
      "festival": "karaka-chaturthi",
      "name": "Karaka Caturthī",
      "everyday": "Karwa Chauth",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30001,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-10-30T06:54:48+04:00",
          "utc": "2015-10-30T02:54:48Z",
          "ms": 1446173688202.2532
        },
        "end": {
          "local": "2015-10-31T04:55:50+04:00",
          "utc": "2015-10-31T00:55:50Z",
          "ms": 1446252950455.2288
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-30T06:54:48+04:00",
          "utc": "2015-10-30T02:54:48Z",
          "ms": 1446173688202.2532
        },
        "end": {
          "local": "2015-10-31T04:55:50+04:00",
          "utc": "2015-10-31T00:55:50Z",
          "ms": 1446252950455.2288
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-10-29",
          "window": {
            "start": {
              "local": "2015-10-29T19:41:13+04:00",
              "utc": "2015-10-29T15:41:13Z",
              "ms": 1446133273182.8862
            },
            "end": {
              "local": "2015-10-29T19:41:13+04:00",
              "utc": "2015-10-29T15:41:13Z",
              "ms": 1446133273182.8862
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-10-30",
          "window": {
            "start": {
              "local": "2015-10-30T20:35:49+04:00",
              "utc": "2015-10-30T16:35:49Z",
              "ms": 1446222949325.2136
            },
            "end": {
              "local": "2015-10-30T20:35:49+04:00",
              "utc": "2015-10-30T16:35:49Z",
              "ms": 1446222949325.2136
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:55 on Fri 30 Oct to 04:56 on Sat 31 Oct.",
          "fact": "2015-10-30T02:54:48Z → 2015-10-31T00:55:50Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:41 on the 29th and 20:36 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 30001 s"
        },
        {
          "step": "ruling",
          "text": "Karaka Caturthī, Abu Dhabi, 2015: Friday 30 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": "2015-10-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Karaka Caturthī (Karwa Chauth) 2015 falls on Friday 30 October. Caturthī runs from 06:55 on Fri 30 Oct to 04:56 on Sat 31 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-10-30",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-10-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30001,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-10-30T06:54:48+04:00",
          "utc": "2015-10-30T02:54:48Z",
          "ms": 1446173688202.2532
        },
        "end": {
          "local": "2015-10-31T04:55:50+04:00",
          "utc": "2015-10-31T00:55:50Z",
          "ms": 1446252950455.2288
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-10-30T06:54:48+04:00",
          "utc": "2015-10-30T02:54:48Z",
          "ms": 1446173688202.2532
        },
        "end": {
          "local": "2015-10-31T04:55:50+04:00",
          "utc": "2015-10-31T00:55:50Z",
          "ms": 1446252950455.2288
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-10-29",
          "window": {
            "start": {
              "local": "2015-10-29T19:41:13+04:00",
              "utc": "2015-10-29T15:41:13Z",
              "ms": 1446133273182.8862
            },
            "end": {
              "local": "2015-10-29T19:41:13+04:00",
              "utc": "2015-10-29T15:41:13Z",
              "ms": 1446133273182.8862
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-10-30",
          "window": {
            "start": {
              "local": "2015-10-30T20:35:49+04:00",
              "utc": "2015-10-30T16:35:49Z",
              "ms": 1446222949325.2136
            },
            "end": {
              "local": "2015-10-30T20:35:49+04:00",
              "utc": "2015-10-30T16:35:49Z",
              "ms": 1446222949325.2136
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:55 on Fri 30 Oct to 04:56 on Sat 31 Oct.",
          "fact": "2015-10-30T02:54:48Z → 2015-10-31T00:55:50Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:41 on the 29th and 20:36 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 30001 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Friday 30 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": "2015-10-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-10-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Friday 30 October. Caturthī runs from 06:55 on Fri 30 Oct to 04:56 on Sat 31 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-10-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ahoyi-ashtami",
      "festival": "ahoyi-ashtami",
      "name": "Ahoyī Aṣṭamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16170,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-11-03T03:50:26+04:00",
          "utc": "2015-11-02T23:50:26Z",
          "ms": 1446508226390.3164
        },
        "end": {
          "local": "2015-11-04T05:08:36+04:00",
          "utc": "2015-11-04T01:08:36Z",
          "ms": 1446599316263.9136
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-03T03:50:26+04:00",
          "utc": "2015-11-02T23:50:26Z",
          "ms": 1446508226390.3164
        },
        "end": {
          "local": "2015-11-04T05:08:36+04:00",
          "utc": "2015-11-04T01:08:36Z",
          "ms": 1446599316263.9136
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-11-02",
          "window": {
            "start": {
              "local": "2015-11-02T23:20:56+04:00",
              "utc": "2015-11-02T19:20:56Z",
              "ms": 1446492055963.5059
            },
            "end": {
              "local": "2015-11-02T23:20:56+04:00",
              "utc": "2015-11-02T19:20:56Z",
              "ms": 1446492055963.5059
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-11-03",
          "window": {
            "start": {
              "local": "2015-11-04T00:13:54+04:00",
              "utc": "2015-11-03T20:13:54Z",
              "ms": 1446581633905.8452
            },
            "end": {
              "local": "2015-11-04T00:13:54+04:00",
              "utc": "2015-11-03T20:13:54Z",
              "ms": 1446581633905.8452
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 03:50 on Tue 3 Nov to 05:09 on Wed 4 Nov.",
          "fact": "2015-11-02T23:50:26Z → 2015-11-04T01:08:36Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 23:21 on the 2nd and 00:14 on the 3rd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is not on the 2nd and is on the 3rd.",
          "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 16170 s"
        },
        {
          "step": "ruling",
          "text": "Ahoyī Aṣṭamī, Abu Dhabi, 2015: Tuesday 3 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": "2015-11-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Ahoyī Aṣṭamī 2015 falls on Tuesday 3 November. Aṣṭamī runs from 03:50 on Tue 3 Nov to 05:09 on Wed 4 Nov and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-11-07",
      "festival": "ekadashi",
      "name": "Ramā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10957,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-11-06T09:34:41+04:00",
          "utc": "2015-11-06T05:34:41Z",
          "ms": 1446788081296.3452
        },
        "end": {
          "local": "2015-11-07T12:17:20+04:00",
          "utc": "2015-11-07T08:17:20Z",
          "ms": 1446884239858.5366
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-06T09:34:41+04:00",
          "utc": "2015-11-06T05:34:41Z",
          "ms": 1446788081296.3452
        },
        "end": {
          "local": "2015-11-07T12:17:20+04:00",
          "utc": "2015-11-07T08:17:20Z",
          "ms": 1446884239858.5366
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-11-06",
          "window": {
            "start": {
              "local": "2015-11-06T06:32:04+04:00",
              "utc": "2015-11-06T02:32:04Z",
              "ms": 1446777124279.8025
            },
            "end": {
              "local": "2015-11-06T06:32:04+04:00",
              "utc": "2015-11-06T02:32:04Z",
              "ms": 1446777124279.8025
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-11-07",
          "window": {
            "start": {
              "local": "2015-11-07T06:32:42+04:00",
              "utc": "2015-11-07T02:32:42Z",
              "ms": 1446863562035.147
            },
            "end": {
              "local": "2015-11-07T06:32:42+04:00",
              "utc": "2015-11-07T02:32:42Z",
              "ms": 1446863562035.147
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 09:35 on Fri 6 Nov to 12:17 on Sat 7 Nov.",
          "fact": "2015-11-06T05:34:41Z → 2015-11-07T08:17:20Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:32 on the 6th and 06:33 on the 7th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.",
          "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 10957 s"
        },
        {
          "step": "ruling",
          "text": "Ramā Ekādaśī, Abu Dhabi, 2015: Saturday 7 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": "2015-11-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Ramā Ekādaśī 2015 falls on Saturday 7 November. Ekādaśī runs from 09:35 on Fri 6 Nov to 12:17 on Sat 7 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-11-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/govatsa-dvadashi",
      "festival": "govatsa-dvadashi",
      "name": "Govatsa Dvādaśī",
      "everyday": "Vasu Baras",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9414,
      "anga": {
        "type": "tithi",
        "index": 26,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2015-11-07T12:17:20+04:00",
          "utc": "2015-11-07T08:17:20Z",
          "ms": 1446884239858.5366
        },
        "end": {
          "local": "2015-11-08T15:01:45+04:00",
          "utc": "2015-11-08T11:01:45Z",
          "ms": 1446980504593.9536
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-07T12:17:20+04:00",
          "utc": "2015-11-07T08:17:20Z",
          "ms": 1446884239858.5366
        },
        "end": {
          "local": "2015-11-08T15:01:45+04:00",
          "utc": "2015-11-08T11:01:45Z",
          "ms": 1446980504593.9536
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-11-07",
          "window": {
            "start": {
              "local": "2015-11-07T17:39:09+04:00",
              "utc": "2015-11-07T13:39:09Z",
              "ms": 1446903549196.519
            },
            "end": {
              "local": "2015-11-07T19:22:23+04:00",
              "utc": "2015-11-07T15:22:23Z",
              "ms": 1446909742666.7512
            }
          },
          "covered_min": 103,
          "window_min": 103,
          "qualifies": true
        },
        {
          "local_date": "2015-11-08",
          "window": {
            "start": {
              "local": "2015-11-08T17:38:38+04:00",
              "utc": "2015-11-08T13:38:38Z",
              "ms": 1446989918311.6184
            },
            "end": {
              "local": "2015-11-08T19:22:01+04:00",
              "utc": "2015-11-08T15:22:01Z",
              "ms": 1446996121047.4524
            }
          },
          "covered_min": 0,
          "window_min": 103,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 12:17 on Sat 7 Nov to 15:02 on Sun 8 Nov.",
          "fact": "2015-11-07T08:17:20Z → 2015-11-08T11:01:45Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:22 on the 7th, 17:39–19:22 on the 8th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during pradoṣa. It covers 103 of 103 minutes on the 7th and 0 of 103 on the 8th.",
          "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 9414 s"
        },
        {
          "step": "ruling",
          "text": "Govatsa Dvādaśī, Abu Dhabi, 2015: Saturday 7 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": "2015-11-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Govatsa Dvādaśī (Vasu Baras) 2015 falls on Saturday 7 November. Dvādaśī runs from 12:17 on Sat 7 Nov to 15:02 on Sun 8 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/yama-dipadana",
      "festival": "yama-dipadana",
      "name": "Yama Dīpadāna",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-08",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 97,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-11-08T15:01:45+04:00",
          "utc": "2015-11-08T11:01:45Z",
          "ms": 1446980504593.9536
        },
        "end": {
          "local": "2015-11-09T17:36:31+04:00",
          "utc": "2015-11-09T13:36:31Z",
          "ms": 1447076191347.7905
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-08T15:01:45+04:00",
          "utc": "2015-11-08T11:01:45Z",
          "ms": 1446980504593.9536
        },
        "end": {
          "local": "2015-11-09T17:36:31+04:00",
          "utc": "2015-11-09T13:36:31Z",
          "ms": 1447076191347.7905
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-11-08",
          "window": {
            "start": {
              "local": "2015-11-08T17:38:38+04:00",
              "utc": "2015-11-08T13:38:38Z",
              "ms": 1446989918311.6184
            },
            "end": {
              "local": "2015-11-08T19:22:01+04:00",
              "utc": "2015-11-08T15:22:01Z",
              "ms": 1446996121047.4524
            }
          },
          "covered_min": 103,
          "window_min": 103,
          "qualifies": true
        },
        {
          "local_date": "2015-11-09",
          "window": {
            "start": {
              "local": "2015-11-09T17:38:09+04:00",
              "utc": "2015-11-09T13:38:09Z",
              "ms": 1447076288721.0298
            },
            "end": {
              "local": "2015-11-09T19:21:41+04:00",
              "utc": "2015-11-09T15:21:41Z",
              "ms": 1447082500603.7124
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:02 on Sun 8 Nov to 17:37 on Mon 9 Nov.",
          "fact": "2015-11-08T11:01:45Z → 2015-11-09T13:36:31Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:22 on the 8th, 17:38–19:22 on the 9th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 103 of 103 minutes on the 8th and 0 of 104 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: unstated → only-day · margin 97 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dīpadāna, Abu Dhabi, 2015: Sunday 8 November.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2015-11-08",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-08",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Yama Dīpadāna 2015 falls on Sunday 8 November. Trayodaśī runs from 15:02 on Sun 8 Nov to 17:37 on Mon 9 Nov and covers all of pradoṣa that evening. It is 1 min 37 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-11-08",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-08",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 97,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-11-08T15:01:45+04:00",
          "utc": "2015-11-08T11:01:45Z",
          "ms": 1446980504593.9536
        },
        "end": {
          "local": "2015-11-09T17:36:31+04:00",
          "utc": "2015-11-09T13:36:31Z",
          "ms": 1447076191347.7905
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-08T15:01:45+04:00",
          "utc": "2015-11-08T11:01:45Z",
          "ms": 1446980504593.9536
        },
        "end": {
          "local": "2015-11-09T17:36:31+04:00",
          "utc": "2015-11-09T13:36:31Z",
          "ms": 1447076191347.7905
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-11-08",
          "window": {
            "start": {
              "local": "2015-11-08T17:38:38+04:00",
              "utc": "2015-11-08T13:38:38Z",
              "ms": 1446989918311.6184
            },
            "end": {
              "local": "2015-11-08T19:22:01+04:00",
              "utc": "2015-11-08T15:22:01Z",
              "ms": 1446996121047.4524
            }
          },
          "covered_min": 103,
          "window_min": 103,
          "qualifies": true
        },
        {
          "local_date": "2015-11-09",
          "window": {
            "start": {
              "local": "2015-11-09T17:38:09+04:00",
              "utc": "2015-11-09T13:38:09Z",
              "ms": 1447076288721.0298
            },
            "end": {
              "local": "2015-11-09T19:21:41+04:00",
              "utc": "2015-11-09T15:21:41Z",
              "ms": 1447082500603.7124
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:02 on Sun 8 Nov to 17:37 on Mon 9 Nov.",
          "fact": "2015-11-08T11:01:45Z → 2015-11-09T13:36:31Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:22 on the 8th, 17:38–19:22 on the 9th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 103 of 103 minutes on the 8th and 0 of 104 on the 9th.",
          "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 97 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Sunday 8 November.",
          "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": "2015-11-08",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-08",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Sunday 8 November. Trayodaśī runs from 15:02 on Sun 8 Nov to 17:37 on Mon 9 Nov and covers all of pradoṣa that evening. It is 1 min 37 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-11-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-11-09",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13748,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-11-09T17:36:31+04:00",
          "utc": "2015-11-09T13:36:31Z",
          "ms": 1447076191347.7905
        },
        "end": {
          "local": "2015-11-10T19:53:21+04:00",
          "utc": "2015-11-10T15:53:21Z",
          "ms": 1447170800836.6682
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-09T17:36:31+04:00",
          "utc": "2015-11-09T13:36:31Z",
          "ms": 1447076191347.7905
        },
        "end": {
          "local": "2015-11-10T19:53:21+04:00",
          "utc": "2015-11-10T15:53:21Z",
          "ms": 1447170800836.6682
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-11-09",
          "window": {
            "start": {
              "local": "2015-11-09T23:42:23+04:00",
              "utc": "2015-11-09T19:42:23Z",
              "ms": 1447098143281.0898
            },
            "end": {
              "local": "2015-11-10T00:30:23+04:00",
              "utc": "2015-11-09T20:30:23Z",
              "ms": 1447101023281.0898
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-11-10",
          "window": {
            "start": {
              "local": "2015-11-10T23:42:29+04:00",
              "utc": "2015-11-10T19:42:29Z",
              "ms": 1447184548839.9502
            },
            "end": {
              "local": "2015-11-11T00:30:29+04:00",
              "utc": "2015-11-10T20:30:29Z",
              "ms": 1447187428839.9502
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 17:37 on Mon 9 Nov to 19:53 on Tue 10 Nov.",
          "fact": "2015-11-09T13:36:31Z → 2015-11-10T15:53:21Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:42–00:30 on the 9th, 23:42–00:30 on the 10th.",
          "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 9th and 0 of 48 on the 10th.",
          "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 13748 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Monday 9 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": "2015-11-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Monday 9 November. Caturdaśī runs from 17:37 on Mon 9 Nov to 19:53 on Tue 10 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-11-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/naraka-chaturdashi",
      "festival": "naraka-chaturdashi",
      "name": "Naraka Caturdaśī",
      "everyday": "Choti Diwali",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32295,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-11-09T17:36:31+04:00",
          "utc": "2015-11-09T13:36:31Z",
          "ms": 1447076191347.7905
        },
        "end": {
          "local": "2015-11-10T19:53:21+04:00",
          "utc": "2015-11-10T15:53:21Z",
          "ms": 1447170800836.6682
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-09T17:36:31+04:00",
          "utc": "2015-11-09T13:36:31Z",
          "ms": 1447076191347.7905
        },
        "end": {
          "local": "2015-11-10T19:53:21+04:00",
          "utc": "2015-11-10T15:53:21Z",
          "ms": 1447170800836.6682
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2015-11-10",
          "window": {
            "start": {
              "local": "2015-11-10T04:51:06+04:00",
              "utc": "2015-11-10T00:51:06Z",
              "ms": 1447116665958.4673
            },
            "end": {
              "local": "2015-11-10T06:34:38+04:00",
              "utc": "2015-11-10T02:34:38Z",
              "ms": 1447122877841.15
            }
          },
          "covered_min": 104,
          "window_min": 104,
          "qualifies": true
        },
        {
          "local_date": "2015-11-11",
          "window": {
            "start": {
              "local": "2015-11-11T04:51:36+04:00",
              "utc": "2015-11-11T00:51:36Z",
              "ms": 1447203096332.3557
            },
            "end": {
              "local": "2015-11-11T06:35:17+04:00",
              "utc": "2015-11-11T02:35:17Z",
              "ms": 1447209317238.6848
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 17:37 on Mon 9 Nov to 19:53 on Tue 10 Nov.",
          "fact": "2015-11-09T13:36:31Z → 2015-11-10T15:53:21Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:51–06:35 on the 10th, 04:52–06:35 on the 11th.",
          "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during aruṇodaya. It covers 104 of 104 minutes on the 10th and 0 of 104 on the 11th.",
          "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 32295 s"
        },
        {
          "step": "ruling",
          "text": "Naraka Caturdaśī, Abu Dhabi, 2015: Tuesday 10 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": "2015-11-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Naraka Caturdaśī (Choti Diwali) 2015 falls on Tuesday 10 November. Caturdaśī runs from 17:37 on Mon 9 Nov to 19:53 on Tue 10 Nov and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/kali-puja",
      "festival": "kali-puja",
      "name": "Kālī Pūjā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6927,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2015-11-10T19:53:21+04:00",
          "utc": "2015-11-10T15:53:21Z",
          "ms": 1447170800836.6682
        },
        "end": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-10T19:53:21+04:00",
          "utc": "2015-11-10T15:53:21Z",
          "ms": 1447170800836.6682
        },
        "end": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-11-10",
          "window": {
            "start": {
              "local": "2015-11-10T23:42:29+04:00",
              "utc": "2015-11-10T19:42:29Z",
              "ms": 1447184548839.9502
            },
            "end": {
              "local": "2015-11-11T00:30:29+04:00",
              "utc": "2015-11-10T20:30:29Z",
              "ms": 1447187428839.9502
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-11-11",
          "window": {
            "start": {
              "local": "2015-11-11T23:42:35+04:00",
              "utc": "2015-11-11T19:42:35Z",
              "ms": 1447270955246.068
            },
            "end": {
              "local": "2015-11-12T00:30:35+04:00",
              "utc": "2015-11-11T20:30:35Z",
              "ms": 1447273835246.068
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 19:53 on Tue 10 Nov to 21:47 on Wed 11 Nov.",
          "fact": "2015-11-10T15:53:21Z → 2015-11-11T17:47:08Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:42–00:30 on the 10th, 23:43–00:31 on the 11th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.",
          "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: unstated → only-day · margin 6927 s"
        },
        {
          "step": "ruling",
          "text": "Kālī Pūjā, Abu Dhabi, 2015: Tuesday 10 November.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "2015-11-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kālī Pūjā 2015 falls on Tuesday 10 November. Amāvasyā runs from 19:53 on Tue 10 Nov to 21:47 on Wed 11 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/diwali-lakshmi-puja",
      "festival": "diwali-lakshmi-puja",
      "name": "Lakṣmī Pūjā",
      "everyday": "Diwali",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1919,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2015-11-10T19:53:21+04:00",
          "utc": "2015-11-10T15:53:21Z",
          "ms": 1447170800836.6682
        },
        "end": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-10T19:53:21+04:00",
          "utc": "2015-11-10T15:53:21Z",
          "ms": 1447170800836.6682
        },
        "end": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-11-10",
          "window": {
            "start": {
              "local": "2015-11-10T17:37:40+04:00",
              "utc": "2015-11-10T13:37:40Z",
              "ms": 1447162660441.2158
            },
            "end": {
              "local": "2015-11-10T19:21:21+04:00",
              "utc": "2015-11-10T15:21:21Z",
              "ms": 1447168881347.545
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        },
        {
          "local_date": "2015-11-11",
          "window": {
            "start": {
              "local": "2015-11-11T17:37:13+04:00",
              "utc": "2015-11-11T13:37:13Z",
              "ms": 1447249033487.6123
            },
            "end": {
              "local": "2015-11-11T19:21:03+04:00",
              "utc": "2015-11-11T15:21:03Z",
              "ms": 1447255263289.8672
            }
          },
          "covered_min": 104,
          "window_min": 104,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 19:53 on Tue 10 Nov to 21:47 on Wed 11 Nov.",
          "fact": "2015-11-10T15:53:21Z → 2015-11-11T17:47:08Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:38–19:21 on the 10th, 17:37–19:21 on the 11th.",
          "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 104 minutes on the 10th and 104 of 104 on the 11th.",
          "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 1919 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pūjā, Abu Dhabi, 2015: Wednesday 11 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": "2015-11-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-11",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Lakṣmī Pūjā (Diwali) 2015 falls on Wednesday 11 November. Amāvasyā runs from 19:53 on Tue 10 Nov to 21:47 on Wed 11 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/govardhana-puja",
      "festival": "govardhana-puja",
      "name": "Govardhana Pūjā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33413,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        },
        "end": {
          "local": "2015-11-12T23:15:30+04:00",
          "utc": "2015-11-12T19:15:30Z",
          "ms": 1447355730117.1184
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        },
        "end": {
          "local": "2015-11-12T23:15:30+04:00",
          "utc": "2015-11-12T19:15:30Z",
          "ms": 1447355730117.1184
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-11-11",
          "window": {
            "start": {
              "local": "2015-11-11T11:42:15+04:00",
              "utc": "2015-11-11T07:42:15Z",
              "ms": 1447227735363.1484
            },
            "end": {
              "local": "2015-11-11T12:30:15+04:00",
              "utc": "2015-11-11T08:30:15Z",
              "ms": 1447230615363.1484
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-11-12",
          "window": {
            "start": {
              "local": "2015-11-12T11:42:22+04:00",
              "utc": "2015-11-12T07:42:22Z",
              "ms": 1447314142439.587
            },
            "end": {
              "local": "2015-11-12T12:30:22+04:00",
              "utc": "2015-11-12T08:30:22Z",
              "ms": 1447317022439.587
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 21:47 on Wed 11 Nov to 23:16 on Thu 12 Nov.",
          "fact": "2015-11-11T17:47:08Z → 2015-11-12T19:15:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 11th, 11:42–12:30 on the 12th.",
          "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 11th and 48 of 48 on the 12th.",
          "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 33413 s"
        },
        {
          "step": "ruling",
          "text": "Govardhana Pūjā, Abu Dhabi, 2015: Thursday 12 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": "2015-11-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Govardhana Pūjā 2015 falls on Thursday 12 November. Pratipadā runs from 21:47 on Wed 11 Nov to 23:16 on Thu 12 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/bali-puja",
      "festival": "bali-puja",
      "name": "Bali Pūjā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8765,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        },
        "end": {
          "local": "2015-11-12T23:15:30+04:00",
          "utc": "2015-11-12T19:15:30Z",
          "ms": 1447355730117.1184
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        },
        "end": {
          "local": "2015-11-12T23:15:30+04:00",
          "utc": "2015-11-12T19:15:30Z",
          "ms": 1447355730117.1184
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-11-11",
          "window": {
            "start": {
              "local": "2015-11-11T17:37:13+04:00",
              "utc": "2015-11-11T13:37:13Z",
              "ms": 1447249033487.6123
            },
            "end": {
              "local": "2015-11-11T19:21:03+04:00",
              "utc": "2015-11-11T15:21:03Z",
              "ms": 1447255263289.8672
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        },
        {
          "local_date": "2015-11-12",
          "window": {
            "start": {
              "local": "2015-11-12T17:36:48+04:00",
              "utc": "2015-11-12T13:36:48Z",
              "ms": 1447335407874.65
            },
            "end": {
              "local": "2015-11-12T19:20:46+04:00",
              "utc": "2015-11-12T15:20:46Z",
              "ms": 1447341646440.5247
            }
          },
          "covered_min": 104,
          "window_min": 104,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 21:47 on Wed 11 Nov to 23:16 on Thu 12 Nov.",
          "fact": "2015-11-11T17:47:08Z → 2015-11-12T19:15:30Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:37–19:21 on the 11th, 17:37–19:21 on the 12th.",
          "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 104 minutes on the 11th and 104 of 104 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 8765 s"
        },
        {
          "step": "ruling",
          "text": "Bali Pūjā, Abu Dhabi, 2015: Thursday 12 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": "2015-11-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Bali Pūjā 2015 falls on Thursday 12 November. Pratipadā runs from 21:47 on Wed 11 Nov to 23:16 on Thu 12 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/dyuta-pratipad",
      "festival": "dyuta-pratipad",
      "name": "Dyūta Pratipad",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26467,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        },
        "end": {
          "local": "2015-11-12T23:15:30+04:00",
          "utc": "2015-11-12T19:15:30Z",
          "ms": 1447355730117.1184
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-11T21:47:08+04:00",
          "utc": "2015-11-11T17:47:08Z",
          "ms": 1447264028031.4216
        },
        "end": {
          "local": "2015-11-12T23:15:30+04:00",
          "utc": "2015-11-12T19:15:30Z",
          "ms": 1447355730117.1184
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2015-11-12",
          "window": {
            "start": {
              "local": "2015-11-12T06:35:57+04:00",
              "utc": "2015-11-12T02:35:57Z",
              "ms": 1447295757004.524
            },
            "end": {
              "local": "2015-11-12T10:16:14+04:00",
              "utc": "2015-11-12T06:16:14Z",
              "ms": 1447308973961.2327
            }
          },
          "covered_min": 220,
          "window_min": 220,
          "qualifies": true
        },
        {
          "local_date": "2015-11-13",
          "window": {
            "start": {
              "local": "2015-11-13T06:36:37+04:00",
              "utc": "2015-11-13T02:36:37Z",
              "ms": 1447382197118.7107
            },
            "end": {
              "local": "2015-11-13T10:16:33+04:00",
              "utc": "2015-11-13T06:16:33Z",
              "ms": 1447395392617.7444
            }
          },
          "covered_min": 0,
          "window_min": 220,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 21:47 on Wed 11 Nov to 23:16 on Thu 12 Nov.",
          "fact": "2015-11-11T17:47:08Z → 2015-11-12T19:15:30Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:36–10:16 on the 12th, 06:37–10:17 on the 13th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during pūrvāhṇa. It covers 220 of 220 minutes on the 12th and 0 of 220 on the 13th.",
          "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 26467 s"
        },
        {
          "step": "ruling",
          "text": "Dyūta Pratipad, Abu Dhabi, 2015: Thursday 12 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": "2015-11-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Dyūta Pratipad 2015 falls on Thursday 12 November. Pratipadā runs from 21:47 on Wed 11 Nov to 23:16 on Thu 12 Nov and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/yama-dvitiya",
      "festival": "yama-dvitiya",
      "name": "Yama Dvitīyā",
      "everyday": "Bhai Dooj",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38708,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2015-11-12T23:15:30+04:00",
          "utc": "2015-11-12T19:15:30Z",
          "ms": 1447355730117.1184
        },
        "end": {
          "local": "2015-11-14T00:17:53+04:00",
          "utc": "2015-11-13T20:17:53Z",
          "ms": 1447445873400.3113
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-12T23:15:30+04:00",
          "utc": "2015-11-12T19:15:30Z",
          "ms": 1447355730117.1184
        },
        "end": {
          "local": "2015-11-14T00:17:53+04:00",
          "utc": "2015-11-13T20:17:53Z",
          "ms": 1447445873400.3113
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-11-12",
          "window": {
            "start": {
              "local": "2015-11-12T11:42:22+04:00",
              "utc": "2015-11-12T07:42:22Z",
              "ms": 1447314142439.587
            },
            "end": {
              "local": "2015-11-12T12:30:22+04:00",
              "utc": "2015-11-12T08:30:22Z",
              "ms": 1447317022439.587
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-11-13",
          "window": {
            "start": {
              "local": "2015-11-13T11:42:30+04:00",
              "utc": "2015-11-13T07:42:30Z",
              "ms": 1447400550367.2612
            },
            "end": {
              "local": "2015-11-13T12:30:30+04:00",
              "utc": "2015-11-13T08:30:30Z",
              "ms": 1447403430367.2612
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 23:16 on Thu 12 Nov to 00:18 on Sat 14 Nov.",
          "fact": "2015-11-12T19:15:30Z → 2015-11-13T20:17:53Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 12th, 11:43–12:31 on the 13th.",
          "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 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 38708 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dvitīyā, Abu Dhabi, 2015: Friday 13 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": "2015-11-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Yama Dvitīyā (Bhai Dooj) 2015 falls on Friday 13 November. Dvitīyā runs from 23:16 on Thu 12 Nov to 00:18 on Sat 14 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/naga-chaturthi",
      "festival": "naga-chaturthi",
      "name": "Nāga Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38208,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-11-15T00:54:38+04:00",
          "utc": "2015-11-14T20:54:38Z",
          "ms": 1447534477709.0032
        },
        "end": {
          "local": "2015-11-16T01:06:11+04:00",
          "utc": "2015-11-15T21:06:11Z",
          "ms": 1447621571225.2363
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-15T00:54:38+04:00",
          "utc": "2015-11-14T20:54:38Z",
          "ms": 1447534477709.0032
        },
        "end": {
          "local": "2015-11-16T01:06:11+04:00",
          "utc": "2015-11-15T21:06:11Z",
          "ms": 1447621571225.2363
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-11-15",
          "window": {
            "start": {
              "local": "2015-11-15T11:42:49+04:00",
              "utc": "2015-11-15T07:42:49Z",
              "ms": 1447573368757.7908
            },
            "end": {
              "local": "2015-11-15T12:30:49+04:00",
              "utc": "2015-11-15T08:30:49Z",
              "ms": 1447576248757.7908
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-11-16",
          "window": {
            "start": {
              "local": "2015-11-16T11:42:59+04:00",
              "utc": "2015-11-16T07:42:59Z",
              "ms": 1447659779208.9807
            },
            "end": {
              "local": "2015-11-16T12:30:59+04:00",
              "utc": "2015-11-16T08:30:59Z",
              "ms": 1447662659208.9807
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 00:55 on Sun 15 Nov to 01:06 on Mon 16 Nov.",
          "fact": "2015-11-14T20:54:38Z → 2015-11-15T21:06:11Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 15th, 11:43–12:31 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 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 38208 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Caturthī, Abu Dhabi, 2015: Sunday 15 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": "2015-11-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Nāga Caturthī 2015 falls on Sunday 15 November. Caturthī runs from 00:55 on Sun 15 Nov to 01:06 on Mon 16 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-11-15",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38208,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-11-15T00:54:38+04:00",
          "utc": "2015-11-14T20:54:38Z",
          "ms": 1447534477709.0032
        },
        "end": {
          "local": "2015-11-16T01:06:11+04:00",
          "utc": "2015-11-15T21:06:11Z",
          "ms": 1447621571225.2363
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-15T00:54:38+04:00",
          "utc": "2015-11-14T20:54:38Z",
          "ms": 1447534477709.0032
        },
        "end": {
          "local": "2015-11-16T01:06:11+04:00",
          "utc": "2015-11-15T21:06:11Z",
          "ms": 1447621571225.2363
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-11-15",
          "window": {
            "start": {
              "local": "2015-11-15T11:42:49+04:00",
              "utc": "2015-11-15T07:42:49Z",
              "ms": 1447573368757.7908
            },
            "end": {
              "local": "2015-11-15T12:30:49+04:00",
              "utc": "2015-11-15T08:30:49Z",
              "ms": 1447576248757.7908
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-11-16",
          "window": {
            "start": {
              "local": "2015-11-16T11:42:59+04:00",
              "utc": "2015-11-16T07:42:59Z",
              "ms": 1447659779208.9807
            },
            "end": {
              "local": "2015-11-16T12:30:59+04:00",
              "utc": "2015-11-16T08:30:59Z",
              "ms": 1447662659208.9807
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 00:55 on Sun 15 Nov to 01:06 on Mon 16 Nov.",
          "fact": "2015-11-14T20:54:38Z → 2015-11-15T21:06:11Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 15th, 11:43–12:31 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 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 midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 38208 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Sunday 15 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": "2015-11-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Sunday 15 November. Caturthī runs from 00:55 on Sun 15 Nov to 01:06 on Mon 16 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-11-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/surya-shashthi",
      "festival": "surya-shashthi",
      "name": "Sūrya Ṣaṣṭhī",
      "everyday": "Chhath",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39027,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2015-11-17T00:52:43+04:00",
          "utc": "2015-11-16T20:52:43Z",
          "ms": 1447707163180.076
        },
        "end": {
          "local": "2015-11-18T00:13:57+04:00",
          "utc": "2015-11-17T20:13:57Z",
          "ms": 1447791237268.2244
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-17T00:52:43+04:00",
          "utc": "2015-11-16T20:52:43Z",
          "ms": 1447707163180.076
        },
        "end": {
          "local": "2015-11-18T00:13:57+04:00",
          "utc": "2015-11-17T20:13:57Z",
          "ms": 1447791237268.2244
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-11-17",
          "window": {
            "start": {
              "local": "2015-11-17T11:43:10+04:00",
              "utc": "2015-11-17T07:43:10Z",
              "ms": 1447746190488.389
            },
            "end": {
              "local": "2015-11-17T12:31:10+04:00",
              "utc": "2015-11-17T08:31:10Z",
              "ms": 1447749070488.389
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-11-18",
          "window": {
            "start": {
              "local": "2015-11-18T11:43:23+04:00",
              "utc": "2015-11-18T07:43:23Z",
              "ms": 1447832602588.5159
            },
            "end": {
              "local": "2015-11-18T12:31:23+04:00",
              "utc": "2015-11-18T08:31:23Z",
              "ms": 1447835482588.5159
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 00:53 on Tue 17 Nov to 00:14 on Wed 18 Nov.",
          "fact": "2015-11-16T20:52:43Z → 2015-11-17T20:13:57Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 17th, 11:43–12:31 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 39027 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī, Abu Dhabi, 2015: Tuesday 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": "2015-11-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Sūrya Ṣaṣṭhī (Chhath) 2015 falls on Tuesday 17 November. Ṣaṣṭhī runs from 00:53 on Tue 17 Nov to 00:14 on Wed 18 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/gopashtami",
      "festival": "gopashtami",
      "name": "Gopāṣṭamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32834,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2015-11-18T23:09:24+04:00",
          "utc": "2015-11-18T19:09:24Z",
          "ms": 1447873764432.8057
        },
        "end": {
          "local": "2015-11-19T21:38:50+04:00",
          "utc": "2015-11-19T17:38:50Z",
          "ms": 1447954729652.643
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-18T23:09:24+04:00",
          "utc": "2015-11-18T19:09:24Z",
          "ms": 1447873764432.8057
        },
        "end": {
          "local": "2015-11-19T21:38:50+04:00",
          "utc": "2015-11-19T17:38:50Z",
          "ms": 1447954729652.643
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-11-18",
          "window": {
            "start": {
              "local": "2015-11-18T11:43:23+04:00",
              "utc": "2015-11-18T07:43:23Z",
              "ms": 1447832602588.5159
            },
            "end": {
              "local": "2015-11-18T12:31:23+04:00",
              "utc": "2015-11-18T08:31:23Z",
              "ms": 1447835482588.5159
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-11-19",
          "window": {
            "start": {
              "local": "2015-11-19T11:43:36+04:00",
              "utc": "2015-11-19T07:43:36Z",
              "ms": 1447919015501.5317
            },
            "end": {
              "local": "2015-11-19T12:31:36+04:00",
              "utc": "2015-11-19T08:31:36Z",
              "ms": 1447921895501.5317
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 23:09 on Wed 18 Nov to 21:39 on Thu 19 Nov.",
          "fact": "2015-11-18T19:09:24Z → 2015-11-19T17:38:50Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 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": "Aṣṭamī 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 32834 s"
        },
        {
          "step": "ruling",
          "text": "Gopāṣṭamī, Abu Dhabi, 2015: Thursday 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": "2015-11-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Gopāṣṭamī 2015 falls on Thursday 19 November. Aṣṭamī runs from 23:09 on Wed 18 Nov to 21:39 on Thu 19 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/akshaya-navami",
      "festival": "akshaya-navami",
      "name": "Akṣaya Navamī",
      "everyday": "Amla Navami",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32556,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2015-11-19T21:38:50+04:00",
          "utc": "2015-11-19T17:38:50Z",
          "ms": 1447954729652.643
        },
        "end": {
          "local": "2015-11-20T19:42:44+04:00",
          "utc": "2015-11-20T15:42:44Z",
          "ms": 1448034164442.1853
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-19T21:38:50+04:00",
          "utc": "2015-11-19T17:38:50Z",
          "ms": 1447954729652.643
        },
        "end": {
          "local": "2015-11-20T19:42:44+04:00",
          "utc": "2015-11-20T15:42:44Z",
          "ms": 1448034164442.1853
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2015-11-20",
          "window": {
            "start": {
              "local": "2015-11-20T06:41:26+04:00",
              "utc": "2015-11-20T02:41:26Z",
              "ms": 1447987285735.7588
            },
            "end": {
              "local": "2015-11-20T10:19:01+04:00",
              "utc": "2015-11-20T06:19:01Z",
              "ms": 1448000341391.57
            }
          },
          "covered_min": 218,
          "window_min": 218,
          "qualifies": true
        },
        {
          "local_date": "2015-11-21",
          "window": {
            "start": {
              "local": "2015-11-21T06:42:08+04:00",
              "utc": "2015-11-21T02:42:08Z",
              "ms": 1448073727782.928
            },
            "end": {
              "local": "2015-11-21T10:19:25+04:00",
              "utc": "2015-11-21T06:19:25Z",
              "ms": 1448086765083.9314
            }
          },
          "covered_min": 0,
          "window_min": 217,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 21:39 on Thu 19 Nov to 19:43 on Fri 20 Nov.",
          "fact": "2015-11-19T17:38:50Z → 2015-11-20T15:42:44Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:41–10:19 on the 20th, 06:42–10:19 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 218 of 218 minutes on the 20th and 0 of 217 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 32556 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Navamī, Abu Dhabi, 2015: Friday 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": "2015-11-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Akṣaya Navamī (Amla Navami) 2015 falls on Friday 20 November. Navamī runs from 21:39 on Thu 19 Nov to 19:43 on Fri 20 Nov and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/durga-navami",
      "festival": "durga-navami",
      "name": "Durgā Navamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25855,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2015-11-19T21:38:50+04:00",
          "utc": "2015-11-19T17:38:50Z",
          "ms": 1447954729652.643
        },
        "end": {
          "local": "2015-11-20T19:42:44+04:00",
          "utc": "2015-11-20T15:42:44Z",
          "ms": 1448034164442.1853
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-19T21:38:50+04:00",
          "utc": "2015-11-19T17:38:50Z",
          "ms": 1447954729652.643
        },
        "end": {
          "local": "2015-11-20T19:42:44+04:00",
          "utc": "2015-11-20T15:42:44Z",
          "ms": 1448034164442.1853
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-11-19",
          "window": {
            "start": {
              "local": "2015-11-19T11:43:36+04:00",
              "utc": "2015-11-19T07:43:36Z",
              "ms": 1447919015501.5317
            },
            "end": {
              "local": "2015-11-19T12:31:36+04:00",
              "utc": "2015-11-19T08:31:36Z",
              "ms": 1447921895501.5317
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-11-20",
          "window": {
            "start": {
              "local": "2015-11-20T11:43:49+04:00",
              "utc": "2015-11-20T07:43:49Z",
              "ms": 1448005429219.4756
            },
            "end": {
              "local": "2015-11-20T12:31:49+04:00",
              "utc": "2015-11-20T08:31:49Z",
              "ms": 1448008309219.4756
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 21:39 on Thu 19 Nov to 19:43 on Fri 20 Nov.",
          "fact": "2015-11-19T17:38:50Z → 2015-11-20T15:42:44Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 19th, 11:44–12:32 on the 20th.",
          "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 19th and 48 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: purvaviddha → only-day · margin 25855 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Navamī, Abu Dhabi, 2015: Friday 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": "2015-11-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Durgā Navamī 2015 falls on Friday 20 November. Navamī runs from 21:39 on Thu 19 Nov to 19:43 on Fri 20 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-11-22",
      "festival": "ekadashi",
      "name": "Prabodhinī Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28798,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-11-21T17:22:56+04:00",
          "utc": "2015-11-21T13:22:56Z",
          "ms": 1448112176248.722
        },
        "end": {
          "local": "2015-11-22T14:42:48+04:00",
          "utc": "2015-11-22T10:42:48Z",
          "ms": 1448188968177.3384
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-21T17:22:56+04:00",
          "utc": "2015-11-21T13:22:56Z",
          "ms": 1448112176248.722
        },
        "end": {
          "local": "2015-11-22T14:42:48+04:00",
          "utc": "2015-11-22T10:42:48Z",
          "ms": 1448188968177.3384
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-11-21",
          "window": {
            "start": {
              "local": "2015-11-21T06:42:08+04:00",
              "utc": "2015-11-21T02:42:08Z",
              "ms": 1448073727782.928
            },
            "end": {
              "local": "2015-11-21T06:42:08+04:00",
              "utc": "2015-11-21T02:42:08Z",
              "ms": 1448073727782.928
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-11-22",
          "window": {
            "start": {
              "local": "2015-11-22T06:42:50+04:00",
              "utc": "2015-11-22T02:42:50Z",
              "ms": 1448160169957.0781
            },
            "end": {
              "local": "2015-11-22T06:42:50+04:00",
              "utc": "2015-11-22T02:42:50Z",
              "ms": 1448160169957.0781
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 17:23 on Sat 21 Nov to 14:43 on Sun 22 Nov.",
          "fact": "2015-11-21T13:22:56Z → 2015-11-22T10:42:48Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:42 on the 21st and 06:43 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 28798 s"
        },
        {
          "step": "ruling",
          "text": "Prabodhinī Ekādaśī, Abu Dhabi, 2015: Sunday 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": "2015-11-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Prabodhinī Ekādaśī 2015 falls on Sunday 22 November. Ekādaśī runs from 17:23 on Sat 21 Nov to 14:43 on Sun 22 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-11-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-11-23",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20772,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-11-23T11:47:26+04:00",
          "utc": "2015-11-23T07:47:26Z",
          "ms": 1448264846335.106
        },
        "end": {
          "local": "2015-11-24T08:43:36+04:00",
          "utc": "2015-11-24T04:43:36Z",
          "ms": 1448340215608.3496
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-23T11:47:26+04:00",
          "utc": "2015-11-23T07:47:26Z",
          "ms": 1448264846335.106
        },
        "end": {
          "local": "2015-11-24T08:43:36+04:00",
          "utc": "2015-11-24T04:43:36Z",
          "ms": 1448340215608.3496
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-11-23",
          "window": {
            "start": {
              "local": "2015-11-23T17:33:38+04:00",
              "utc": "2015-11-23T13:33:38Z",
              "ms": 1448285618015.9734
            },
            "end": {
              "local": "2015-11-23T19:19:03+04:00",
              "utc": "2015-11-23T15:19:03Z",
              "ms": 1448291942892.0676
            }
          },
          "covered_min": 105,
          "window_min": 105,
          "qualifies": true
        },
        {
          "local_date": "2015-11-24",
          "window": {
            "start": {
              "local": "2015-11-24T17:33:29+04:00",
              "utc": "2015-11-24T13:33:29Z",
              "ms": 1448372009382.7002
            },
            "end": {
              "local": "2015-11-24T19:19:01+04:00",
              "utc": "2015-11-24T15:19:01Z",
              "ms": 1448378341064.0647
            }
          },
          "covered_min": 0,
          "window_min": 106,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:47 on Mon 23 Nov to 08:44 on Tue 24 Nov.",
          "fact": "2015-11-23T07:47:26Z → 2015-11-24T04:43:36Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:34–19:19 on the 23rd, 17:33–19:19 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 105 of 105 minutes on the 23rd and 0 of 106 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 20772 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Monday 23 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": "2015-11-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Monday 23 November. Trayodaśī runs from 11:47 on Mon 23 Nov to 08:44 on Tue 24 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-11-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/kartiki-purnima",
      "festival": "kartiki-purnima",
      "name": "Kārtikī Pūrṇimā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21943,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-11-25T05:39:26+04:00",
          "utc": "2015-11-25T01:39:26Z",
          "ms": 1448415566414.1794
        },
        "end": {
          "local": "2015-11-26T02:44:15+04:00",
          "utc": "2015-11-25T22:44:15Z",
          "ms": 1448491454615.662
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-25T05:39:26+04:00",
          "utc": "2015-11-25T01:39:26Z",
          "ms": 1448415566414.1794
        },
        "end": {
          "local": "2015-11-26T02:44:15+04:00",
          "utc": "2015-11-25T22:44:15Z",
          "ms": 1448491454615.662
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-11-25",
          "window": {
            "start": {
              "local": "2015-11-25T11:45:10+04:00",
              "utc": "2015-11-25T07:45:10Z",
              "ms": 1448437509611.169
            },
            "end": {
              "local": "2015-11-25T12:33:10+04:00",
              "utc": "2015-11-25T08:33:10Z",
              "ms": 1448440389611.169
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-11-26",
          "window": {
            "start": {
              "local": "2015-11-26T11:45:28+04:00",
              "utc": "2015-11-26T07:45:28Z",
              "ms": 1448523927995.5264
            },
            "end": {
              "local": "2015-11-26T12:33:28+04:00",
              "utc": "2015-11-26T08:33:28Z",
              "ms": 1448526807995.5264
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 05:39 on Wed 25 Nov to 02:44 on Thu 26 Nov.",
          "fact": "2015-11-25T01:39:26Z → 2015-11-25T22:44:15Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 25th, 11:45–12:33 on the 26th.",
          "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 25th and 0 of 48 on the 26th.",
          "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 21943 s"
        },
        {
          "step": "ruling",
          "text": "Kārtikī Pūrṇimā, Abu Dhabi, 2015: Wednesday 25 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": "2015-11-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kārtikī Pūrṇimā 2015 falls on Wednesday 25 November. Pūrṇimā runs from 05:39 on Wed 25 Nov to 02:44 on Thu 26 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/rasayatra",
      "festival": "rasayatra",
      "name": "Rāsayātrā",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7844,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-11-25T05:39:26+04:00",
          "utc": "2015-11-25T01:39:26Z",
          "ms": 1448415566414.1794
        },
        "end": {
          "local": "2015-11-26T02:44:15+04:00",
          "utc": "2015-11-25T22:44:15Z",
          "ms": 1448491454615.662
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-25T05:39:26+04:00",
          "utc": "2015-11-25T01:39:26Z",
          "ms": 1448415566414.1794
        },
        "end": {
          "local": "2015-11-26T02:44:15+04:00",
          "utc": "2015-11-25T22:44:15Z",
          "ms": 1448491454615.662
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-11-24",
          "window": {
            "start": {
              "local": "2015-11-24T23:45:13+04:00",
              "utc": "2015-11-24T19:45:13Z",
              "ms": 1448394313187.8174
            },
            "end": {
              "local": "2015-11-25T00:33:13+04:00",
              "utc": "2015-11-24T20:33:13Z",
              "ms": 1448397193187.8174
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-11-25",
          "window": {
            "start": {
              "local": "2015-11-25T23:45:31+04:00",
              "utc": "2015-11-25T19:45:31Z",
              "ms": 1448480730828.1528
            },
            "end": {
              "local": "2015-11-26T00:33:31+04:00",
              "utc": "2015-11-25T20:33:31Z",
              "ms": 1448483610828.1528
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 05:39 on Wed 25 Nov to 02:44 on Thu 26 Nov.",
          "fact": "2015-11-25T01:39:26Z → 2015-11-25T22:44:15Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 24th, 23:46–00:34 on the 25th.",
          "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 24th and 48 of 48 on the 25th.",
          "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 7844 s"
        },
        {
          "step": "ruling",
          "text": "Rāsayātrā, Abu Dhabi, 2015: Wednesday 25 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": "2015-11-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Rāsayātrā 2015 falls on Wednesday 25 November. Pūrṇimā runs from 05:39 on Wed 25 Nov to 02:44 on Thu 26 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-11-28",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-11-28",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 1173,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-11-28T20:31:06+04:00",
          "utc": "2015-11-28T16:31:06Z",
          "ms": 1448728265942.3276
        },
        "end": {
          "local": "2015-11-29T19:47:27+04:00",
          "utc": "2015-11-29T15:47:27Z",
          "ms": 1448812046944.6738
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-11-28T20:31:06+04:00",
          "utc": "2015-11-28T16:31:06Z",
          "ms": 1448728265942.3276
        },
        "end": {
          "local": "2015-11-29T19:47:27+04:00",
          "utc": "2015-11-29T15:47:27Z",
          "ms": 1448812046944.6738
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-11-28",
          "window": {
            "start": {
              "local": "2015-11-28T20:11:33+04:00",
              "utc": "2015-11-28T16:11:33Z",
              "ms": 1448727093159.0234
            },
            "end": {
              "local": "2015-11-28T20:11:33+04:00",
              "utc": "2015-11-28T16:11:33Z",
              "ms": 1448727093159.0234
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2015-11-29",
          "window": {
            "start": {
              "local": "2015-11-29T21:08:02+04:00",
              "utc": "2015-11-29T17:08:02Z",
              "ms": 1448816882455.572
            },
            "end": {
              "local": "2015-11-29T21:08:02+04:00",
              "utc": "2015-11-29T17:08:02Z",
              "ms": 1448816882455.572
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:31 on Sat 28 Nov to 19:47 on Sun 29 Nov.",
          "fact": "2015-11-28T16:31:06Z → 2015-11-29T15:47:27Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:12 on the 28th and 21:08 on the 29th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 28th and is not on the 29th.",
          "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 1173 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Saturday 28 November.",
          "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": "2015-11-28",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-11-28",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Saturday 28 November. Caturthī runs from 20:31 on Sat 28 Nov to 19:47 on Sun 29 Nov, and is current at moonrise on neither day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-11-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/ekadashi?on=2015-12-07",
      "festival": "ekadashi",
      "name": "Utpannā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2046,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-12-06T06:18:33+04:00",
          "utc": "2015-12-06T02:18:33Z",
          "ms": 1449368313003.0884
        },
        "end": {
          "local": "2015-12-07T08:53:08+04:00",
          "utc": "2015-12-07T04:53:08Z",
          "ms": 1449463987940.0903
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-06T06:18:33+04:00",
          "utc": "2015-12-06T02:18:33Z",
          "ms": 1449368313003.0884
        },
        "end": {
          "local": "2015-12-07T08:53:08+04:00",
          "utc": "2015-12-07T04:53:08Z",
          "ms": 1449463987940.0903
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-12-06",
          "window": {
            "start": {
              "local": "2015-12-06T06:52:39+04:00",
              "utc": "2015-12-06T02:52:39Z",
              "ms": 1449370358724.9417
            },
            "end": {
              "local": "2015-12-06T06:52:39+04:00",
              "utc": "2015-12-06T02:52:39Z",
              "ms": 1449370358724.9417
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-12-07",
          "window": {
            "start": {
              "local": "2015-12-07T06:53:19+04:00",
              "utc": "2015-12-07T02:53:19Z",
              "ms": 1449456799381.801
            },
            "end": {
              "local": "2015-12-07T06:53:19+04:00",
              "utc": "2015-12-07T02:53:19Z",
              "ms": 1449456799381.801
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:19 on Sun 6 Dec to 08:53 on Mon 7 Dec.",
          "fact": "2015-12-06T02:18:33Z → 2015-12-07T04:53:08Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:53 on the 6th and 06:53 on the 7th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 6th and is on the 7th.",
          "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 2046 s"
        },
        {
          "step": "ruling",
          "text": "Utpannā Ekādaśī, Abu Dhabi, 2015: Monday 7 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": "2015-12-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Utpannā Ekādaśī 2015 falls on Monday 7 December. Ekādaśī runs from 06:19 on Sun 6 Dec to 08:53 on Mon 7 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-12-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-12-08",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17266,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-12-08T11:05:02+04:00",
          "utc": "2015-12-08T07:05:02Z",
          "ms": 1449558301854.184
        },
        "end": {
          "local": "2015-12-09T12:46:32+04:00",
          "utc": "2015-12-09T08:46:32Z",
          "ms": 1449650792271.1465
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-08T11:05:02+04:00",
          "utc": "2015-12-08T07:05:02Z",
          "ms": 1449558301854.184
        },
        "end": {
          "local": "2015-12-09T12:46:32+04:00",
          "utc": "2015-12-09T08:46:32Z",
          "ms": 1449650792271.1465
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-12-08",
          "window": {
            "start": {
              "local": "2015-12-08T17:34:05+04:00",
              "utc": "2015-12-08T13:34:05Z",
              "ms": 1449581645133.4219
            },
            "end": {
              "local": "2015-12-08T19:20:50+04:00",
              "utc": "2015-12-08T15:20:50Z",
              "ms": 1449588049714.4006
            }
          },
          "covered_min": 107,
          "window_min": 107,
          "qualifies": true
        },
        {
          "local_date": "2015-12-09",
          "window": {
            "start": {
              "local": "2015-12-09T17:34:19+04:00",
              "utc": "2015-12-09T13:34:19Z",
              "ms": 1449668058694.306
            },
            "end": {
              "local": "2015-12-09T19:21:07+04:00",
              "utc": "2015-12-09T15:21:07Z",
              "ms": 1449674466716.115
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:05 on Tue 8 Dec to 12:47 on Wed 9 Dec.",
          "fact": "2015-12-08T07:05:02Z → 2015-12-09T08:46:32Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:34–19:21 on the 8th, 17:34–19:21 on the 9th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 107 of 107 minutes on the 8th and 0 of 107 on the 9th.",
          "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 17266 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Abu Dhabi, 2015: Tuesday 8 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-12-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Kṛṣṇa Pradoṣa Vrata 2015 falls on Tuesday 8 December. Trayodaśī runs from 11:05 on Tue 8 Dec to 12:47 on Wed 9 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-12-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/shivaratri?on=2015-12-09",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35807,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2015-12-09T12:46:32+04:00",
          "utc": "2015-12-09T08:46:32Z",
          "ms": 1449650792271.1465
        },
        "end": {
          "local": "2015-12-10T13:54:29+04:00",
          "utc": "2015-12-10T09:54:29Z",
          "ms": 1449741268972.354
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-09T12:46:32+04:00",
          "utc": "2015-12-09T08:46:32Z",
          "ms": 1449650792271.1465
        },
        "end": {
          "local": "2015-12-10T13:54:29+04:00",
          "utc": "2015-12-10T09:54:29Z",
          "ms": 1449741268972.354
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2015-12-09",
          "window": {
            "start": {
              "local": "2015-12-09T23:50:49+04:00",
              "utc": "2015-12-09T19:50:49Z",
              "ms": 1449690648776.0903
            },
            "end": {
              "local": "2015-12-10T00:38:49+04:00",
              "utc": "2015-12-09T20:38:49Z",
              "ms": 1449693528776.0903
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-12-10",
          "window": {
            "start": {
              "local": "2015-12-10T23:51:16+04:00",
              "utc": "2015-12-10T19:51:16Z",
              "ms": 1449777075680.1157
            },
            "end": {
              "local": "2015-12-11T00:39:16+04:00",
              "utc": "2015-12-10T20:39:16Z",
              "ms": 1449779955680.1157
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 12:47 on Wed 9 Dec to 13:54 on Thu 10 Dec.",
          "fact": "2015-12-09T08:46:32Z → 2015-12-10T09:54:29Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:51–00:39 on the 9th, 23:51–00:39 on the 10th.",
          "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 9th and 0 of 48 on the 10th.",
          "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 35807 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Abu Dhabi, 2015: Wednesday 9 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": "2015-12-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śivarātri 2015 falls on Wednesday 9 December. Caturdaśī runs from 12:47 on Wed 9 Dec to 13:54 on Thu 10 Dec and covers all of niśītha that night.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/shivaratri?on=2015-12-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/naga-panchami-margashirsha",
      "festival": "naga-panchami-margashirsha",
      "name": "Nāga Pañcamī (Mārgaśīrṣa)",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 599,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2015-12-15T12:31:19+04:00",
          "utc": "2015-12-15T08:31:19Z",
          "ms": 1450168279181.693
        },
        "end": {
          "local": "2015-12-16T11:16:41+04:00",
          "utc": "2015-12-16T07:16:41Z",
          "ms": 1450250201206.9243
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-15T12:31:19+04:00",
          "utc": "2015-12-15T08:31:19Z",
          "ms": 1450168279181.693
        },
        "end": {
          "local": "2015-12-16T11:16:41+04:00",
          "utc": "2015-12-16T07:16:41Z",
          "ms": 1450250201206.9243
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-12-15",
          "window": {
            "start": {
              "local": "2015-12-15T11:53:18+04:00",
              "utc": "2015-12-15T07:53:18Z",
              "ms": 1450165997803.2476
            },
            "end": {
              "local": "2015-12-15T12:41:18+04:00",
              "utc": "2015-12-15T08:41:18Z",
              "ms": 1450168877803.2476
            }
          },
          "covered_min": 10,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-12-16",
          "window": {
            "start": {
              "local": "2015-12-16T11:53:47+04:00",
              "utc": "2015-12-16T07:53:47Z",
              "ms": 1450252427011.2002
            },
            "end": {
              "local": "2015-12-16T12:41:47+04:00",
              "utc": "2015-12-16T08:41:47Z",
              "ms": 1450255307011.2002
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 12:31 on Tue 15 Dec to 11:17 on Wed 16 Dec.",
          "fact": "2015-12-15T08:31:19Z → 2015-12-16T07:16:41Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 15th, 11:54–12:42 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 10 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": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 599 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī (Mārgaśīrṣa), Abu Dhabi, 2015: Tuesday 15 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": "2015-12-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-16",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Nāga Pañcamī (Mārgaśīrṣa) 2015 falls on Tuesday 15 December. Pañcamī runs from 12:31 on Tue 15 Dec to 11:17 on Wed 16 Dec and covers 10 of 48 minutes of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-12-15",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 599,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-12-14T13:31:09+04:00",
          "utc": "2015-12-14T09:31:09Z",
          "ms": 1450085469407.4673
        },
        "end": {
          "local": "2015-12-15T12:31:19+04:00",
          "utc": "2015-12-15T08:31:19Z",
          "ms": 1450168279181.693
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-14T13:31:09+04:00",
          "utc": "2015-12-14T09:31:09Z",
          "ms": 1450085469407.4673
        },
        "end": {
          "local": "2015-12-15T12:31:19+04:00",
          "utc": "2015-12-15T08:31:19Z",
          "ms": 1450168279181.693
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-12-14",
          "window": {
            "start": {
              "local": "2015-12-14T11:52:49+04:00",
              "utc": "2015-12-14T07:52:49Z",
              "ms": 1450079568846.399
            },
            "end": {
              "local": "2015-12-14T12:40:49+04:00",
              "utc": "2015-12-14T08:40:49Z",
              "ms": 1450082448846.399
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-12-15",
          "window": {
            "start": {
              "local": "2015-12-15T11:53:18+04:00",
              "utc": "2015-12-15T07:53:18Z",
              "ms": 1450165997803.2476
            },
            "end": {
              "local": "2015-12-15T12:41:18+04:00",
              "utc": "2015-12-15T08:41:18Z",
              "ms": 1450168877803.2476
            }
          },
          "covered_min": 38,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:31 on Mon 14 Dec to 12:31 on Tue 15 Dec.",
          "fact": "2015-12-14T09:31:09Z → 2015-12-15T08:31:19Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 14th, 11:53–12:41 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 38 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 599 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Abu Dhabi, 2015: Tuesday 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": "2015-12-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Vināyaka Caturthī 2015 falls on Tuesday 15 December. Caturthī runs from 13:31 on Mon 14 Dec to 12:31 on Tue 15 Dec and covers 38 of 48 minutes of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/vinayaka-chaturthi?on=2015-12-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/champa-shashthi",
      "festival": "champa-shashthi",
      "name": "Campā Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2226,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2015-12-16T11:16:41+04:00",
          "utc": "2015-12-16T07:16:41Z",
          "ms": 1450250201206.9243
        },
        "end": {
          "local": "2015-12-17T09:48:56+04:00",
          "utc": "2015-12-17T05:48:56Z",
          "ms": 1450331335561.605
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-16T11:16:41+04:00",
          "utc": "2015-12-16T07:16:41Z",
          "ms": 1450250201206.9243
        },
        "end": {
          "local": "2015-12-17T09:48:56+04:00",
          "utc": "2015-12-17T05:48:56Z",
          "ms": 1450331335561.605
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-12-16",
          "window": {
            "start": {
              "local": "2015-12-16T11:53:47+04:00",
              "utc": "2015-12-16T07:53:47Z",
              "ms": 1450252427011.2002
            },
            "end": {
              "local": "2015-12-16T12:41:47+04:00",
              "utc": "2015-12-16T08:41:47Z",
              "ms": 1450255307011.2002
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-12-17",
          "window": {
            "start": {
              "local": "2015-12-17T11:54:16+04:00",
              "utc": "2015-12-17T07:54:16Z",
              "ms": 1450338856434.125
            },
            "end": {
              "local": "2015-12-17T12:42:16+04:00",
              "utc": "2015-12-17T08:42:16Z",
              "ms": 1450341736434.125
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 11:17 on Wed 16 Dec to 09:49 on Thu 17 Dec.",
          "fact": "2015-12-16T07:16:41Z → 2015-12-17T05:48:56Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 16th, 11:54–12:42 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 48 of 48 minutes on the 16th and 0 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 2226 s"
        },
        {
          "step": "ruling",
          "text": "Campā Ṣaṣṭhī, Abu Dhabi, 2015: Wednesday 16 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": "2015-12-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-16",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Campā Ṣaṣṭhī 2015 falls on Wednesday 16 December. Ṣaṣṭhī runs from 11:17 on Wed 16 Dec to 09:49 on Thu 17 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/skanda-shashthi",
      "festival": "skanda-shashthi",
      "name": "Skanda Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2226,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2015-12-16T11:16:41+04:00",
          "utc": "2015-12-16T07:16:41Z",
          "ms": 1450250201206.9243
        },
        "end": {
          "local": "2015-12-17T09:48:56+04:00",
          "utc": "2015-12-17T05:48:56Z",
          "ms": 1450331335561.605
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-16T11:16:41+04:00",
          "utc": "2015-12-16T07:16:41Z",
          "ms": 1450250201206.9243
        },
        "end": {
          "local": "2015-12-17T09:48:56+04:00",
          "utc": "2015-12-17T05:48:56Z",
          "ms": 1450331335561.605
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-12-16",
          "window": {
            "start": {
              "local": "2015-12-16T11:53:47+04:00",
              "utc": "2015-12-16T07:53:47Z",
              "ms": 1450252427011.2002
            },
            "end": {
              "local": "2015-12-16T12:41:47+04:00",
              "utc": "2015-12-16T08:41:47Z",
              "ms": 1450255307011.2002
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-12-17",
          "window": {
            "start": {
              "local": "2015-12-17T11:54:16+04:00",
              "utc": "2015-12-17T07:54:16Z",
              "ms": 1450338856434.125
            },
            "end": {
              "local": "2015-12-17T12:42:16+04:00",
              "utc": "2015-12-17T08:42:16Z",
              "ms": 1450341736434.125
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 11:17 on Wed 16 Dec to 09:49 on Thu 17 Dec.",
          "fact": "2015-12-16T07:16:41Z → 2015-12-17T05:48:56Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 16th, 11:54–12:42 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 48 of 48 minutes on the 16th and 0 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 2226 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī, Abu Dhabi, 2015: Wednesday 16 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": "2015-12-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-16",
          "confidence": "boundary"
        }
      ],
      "quote": "In Abu Dhabi, Skanda Ṣaṣṭhī 2015 falls on Wednesday 16 December. Ṣaṣṭhī runs from 11:17 on Wed 16 Dec to 09:49 on Thu 17 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/mitra-saptami",
      "festival": "mitra-saptami",
      "name": "Mitra Saptamī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7521,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2015-12-17T09:48:56+04:00",
          "utc": "2015-12-17T05:48:56Z",
          "ms": 1450331335561.605
        },
        "end": {
          "local": "2015-12-18T08:08:50+04:00",
          "utc": "2015-12-18T04:08:50Z",
          "ms": 1450411730345.9517
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-17T09:48:56+04:00",
          "utc": "2015-12-17T05:48:56Z",
          "ms": 1450331335561.605
        },
        "end": {
          "local": "2015-12-18T08:08:50+04:00",
          "utc": "2015-12-18T04:08:50Z",
          "ms": 1450411730345.9517
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-12-17",
          "window": {
            "start": {
              "local": "2015-12-17T11:54:16+04:00",
              "utc": "2015-12-17T07:54:16Z",
              "ms": 1450338856434.125
            },
            "end": {
              "local": "2015-12-17T12:42:16+04:00",
              "utc": "2015-12-17T08:42:16Z",
              "ms": 1450341736434.125
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2015-12-18",
          "window": {
            "start": {
              "local": "2015-12-18T11:54:46+04:00",
              "utc": "2015-12-18T07:54:46Z",
              "ms": 1450425286036.4502
            },
            "end": {
              "local": "2015-12-18T12:42:46+04:00",
              "utc": "2015-12-18T08:42:46Z",
              "ms": 1450428166036.4502
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 09:49 on Thu 17 Dec to 08:09 on Fri 18 Dec.",
          "fact": "2015-12-17T05:48:56Z → 2015-12-18T04:08:50Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 17th, 11:55–12:43 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 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: purvaviddha → only-day · margin 7521 s"
        },
        {
          "step": "ruling",
          "text": "Mitra Saptamī, Abu Dhabi, 2015: Thursday 17 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": "2015-12-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Mitra Saptamī 2015 falls on Thursday 17 December. Saptamī runs from 09:49 on Thu 17 Dec to 08:09 on Fri 18 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/ekadashi?on=2015-12-21",
      "festival": "ekadashi",
      "name": "Mokṣadā Ekādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18047,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2015-12-21T02:01:01+04:00",
          "utc": "2015-12-20T22:01:01Z",
          "ms": 1450648861056.639
        },
        "end": {
          "local": "2015-12-21T23:41:44+04:00",
          "utc": "2015-12-21T19:41:44Z",
          "ms": 1450726903574.745
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-21T02:01:01+04:00",
          "utc": "2015-12-20T22:01:01Z",
          "ms": 1450648861056.639
        },
        "end": {
          "local": "2015-12-21T23:41:44+04:00",
          "utc": "2015-12-21T19:41:44Z",
          "ms": 1450726903574.745
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2015-12-21",
          "window": {
            "start": {
              "local": "2015-12-21T07:01:48+04:00",
              "utc": "2015-12-21T03:01:48Z",
              "ms": 1450666908179.0693
            },
            "end": {
              "local": "2015-12-21T07:01:48+04:00",
              "utc": "2015-12-21T03:01:48Z",
              "ms": 1450666908179.0693
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-12-22",
          "window": {
            "start": {
              "local": "2015-12-22T07:02:19+04:00",
              "utc": "2015-12-22T03:02:19Z",
              "ms": 1450753338516.4717
            },
            "end": {
              "local": "2015-12-22T07:02:19+04:00",
              "utc": "2015-12-22T03:02:19Z",
              "ms": 1450753338516.4717
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 02:01 on Mon 21 Dec to 23:42 on Mon 21 Dec.",
          "fact": "2015-12-20T22:01:01Z → 2015-12-21T19:41:44Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 07:02 on the 21st and 07:02 on the 22nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 21st and is not 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 18047 s"
        },
        {
          "step": "ruling",
          "text": "Mokṣadā Ekādaśī, Abu Dhabi, 2015: Monday 21 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": "2015-12-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Mokṣadā Ekādaśī 2015 falls on Monday 21 December. Ekādaśī runs from 02:01 on Mon 21 Dec to 23:42 on Mon 21 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/ekadashi?on=2015-12-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/akhanda-dvadashi",
      "festival": "akhanda-dvadashi",
      "name": "Akhaṇḍa Dvādaśī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30939,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2015-12-21T23:41:44+04:00",
          "utc": "2015-12-21T19:41:44Z",
          "ms": 1450726903574.745
        },
        "end": {
          "local": "2015-12-22T21:20:24+04:00",
          "utc": "2015-12-22T17:20:24Z",
          "ms": 1450804824139.601
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-21T23:41:44+04:00",
          "utc": "2015-12-21T19:41:44Z",
          "ms": 1450726903574.745
        },
        "end": {
          "local": "2015-12-22T21:20:24+04:00",
          "utc": "2015-12-22T17:20:24Z",
          "ms": 1450804824139.601
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2015-12-21",
          "window": {
            "start": {
              "local": "2015-12-21T11:56:16+04:00",
              "utc": "2015-12-21T07:56:16Z",
              "ms": 1450684575577.106
            },
            "end": {
              "local": "2015-12-21T12:44:16+04:00",
              "utc": "2015-12-21T08:44:16Z",
              "ms": 1450687455577.106
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2015-12-22",
          "window": {
            "start": {
              "local": "2015-12-22T11:56:46+04:00",
              "utc": "2015-12-22T07:56:46Z",
              "ms": 1450771005559.4248
            },
            "end": {
              "local": "2015-12-22T12:44:46+04:00",
              "utc": "2015-12-22T08:44:46Z",
              "ms": 1450773885559.4248
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 23:42 on Mon 21 Dec to 21:20 on Tue 22 Dec.",
          "fact": "2015-12-21T19:41:44Z → 2015-12-22T17:20:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 21st, 11:57–12:45 on the 22nd.",
          "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 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: paraviddha → only-day · margin 30939 s"
        },
        {
          "step": "ruling",
          "text": "Akhaṇḍa Dvādaśī, Abu Dhabi, 2015: Tuesday 22 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": "2015-12-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Akhaṇḍa Dvādaśī 2015 falls on Tuesday 22 December. Dvādaśī runs from 23:42 on Mon 21 Dec to 21:20 on Tue 22 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-12-23",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1422,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2015-12-22T21:20:24+04:00",
          "utc": "2015-12-22T17:20:24Z",
          "ms": 1450804824139.601
        },
        "end": {
          "local": "2015-12-23T19:03:10+04:00",
          "utc": "2015-12-23T15:03:10Z",
          "ms": 1450882989659.3704
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-22T21:20:24+04:00",
          "utc": "2015-12-22T17:20:24Z",
          "ms": 1450804824139.601
        },
        "end": {
          "local": "2015-12-23T19:03:10+04:00",
          "utc": "2015-12-23T15:03:10Z",
          "ms": 1450882989659.3704
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-12-22",
          "window": {
            "start": {
              "local": "2015-12-22T17:39:13+04:00",
              "utc": "2015-12-22T13:39:13Z",
              "ms": 1450791552602.3782
            },
            "end": {
              "local": "2015-12-22T19:26:21+04:00",
              "utc": "2015-12-22T15:26:21Z",
              "ms": 1450797981302.643
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        },
        {
          "local_date": "2015-12-23",
          "window": {
            "start": {
              "local": "2015-12-23T17:39:43+04:00",
              "utc": "2015-12-23T13:39:43Z",
              "ms": 1450877983260.448
            },
            "end": {
              "local": "2015-12-23T19:26:52+04:00",
              "utc": "2015-12-23T15:26:52Z",
              "ms": 1450884411647.4668
            }
          },
          "covered_min": 83,
          "window_min": 107,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 21:20 on Tue 22 Dec to 19:03 on Wed 23 Dec.",
          "fact": "2015-12-22T17:20:24Z → 2015-12-23T15:03:10Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:26 on the 22nd, 17:40–19:27 on the 23rd.",
          "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 107 minutes on the 22nd and 83 of 107 on the 23rd.",
          "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 1422 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Abu Dhabi, 2015: Wednesday 23 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2015-12-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Śukla Pradoṣa Vrata 2015 falls on Wednesday 23 December. Trayodaśī runs from 21:20 on Tue 22 Dec to 19:03 on Wed 23 Dec and covers 83 of 107 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/pradosha-vrata?on=2015-12-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/abu-dhabi/festivals/2015/dattatreyotpatti",
      "festival": "dattatreyotpatti",
      "name": "Dattātreyotpatti",
      "everyday": "Datta Jayanti",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2569,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2015-12-24T16:57:25+04:00",
          "utc": "2015-12-24T12:57:25Z",
          "ms": 1450961845491.65
        },
        "end": {
          "local": "2015-12-25T15:11:28+04:00",
          "utc": "2015-12-25T11:11:28Z",
          "ms": 1451041888366.648
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-24T16:57:25+04:00",
          "utc": "2015-12-24T12:57:25Z",
          "ms": 1450961845491.65
        },
        "end": {
          "local": "2015-12-25T15:11:28+04:00",
          "utc": "2015-12-25T11:11:28Z",
          "ms": 1451041888366.648
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2015-12-24",
          "window": {
            "start": {
              "local": "2015-12-24T17:40:15+04:00",
              "utc": "2015-12-24T13:40:15Z",
              "ms": 1450964414918.9539
            },
            "end": {
              "local": "2015-12-24T19:27:23+04:00",
              "utc": "2015-12-24T15:27:23Z",
              "ms": 1450970842718.3372
            }
          },
          "covered_min": 107,
          "window_min": 107,
          "qualifies": true
        },
        {
          "local_date": "2015-12-25",
          "window": {
            "start": {
              "local": "2015-12-25T17:40:48+04:00",
              "utc": "2015-12-25T13:40:48Z",
              "ms": 1451050847547.0586
            },
            "end": {
              "local": "2015-12-25T19:27:54+04:00",
              "utc": "2015-12-25T15:27:54Z",
              "ms": 1451057274484.8884
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 16:57 on Thu 24 Dec to 15:11 on Fri 25 Dec.",
          "fact": "2015-12-24T12:57:25Z → 2015-12-25T11:11:28Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:40–19:27 on the 24th, 17:41–19:28 on the 25th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 107 of 107 minutes on the 24th and 0 of 107 on the 25th.",
          "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 2569 s"
        },
        {
          "step": "ruling",
          "text": "Dattātreyotpatti, Abu Dhabi, 2015: Thursday 24 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": "2015-12-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Dattātreyotpatti (Datta Jayanti) 2015 falls on Thursday 24 December. Pūrṇimā runs from 16:57 on Thu 24 Dec to 15:11 on Fri 25 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/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": "/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-12-28",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "292968",
      "year": 2015,
      "local_date": "2015-12-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27078,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2015-12-28T13:12:51+04:00",
          "utc": "2015-12-28T09:12:51Z",
          "ms": 1451293970825.948
        },
        "end": {
          "local": "2015-12-29T13:58:43+04:00",
          "utc": "2015-12-29T09:58:43Z",
          "ms": 1451383122843.6812
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2015-12-28T13:12:51+04:00",
          "utc": "2015-12-28T09:12:51Z",
          "ms": 1451293970825.948
        },
        "end": {
          "local": "2015-12-29T13:58:43+04:00",
          "utc": "2015-12-29T09:58:43Z",
          "ms": 1451383122843.6812
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2015-12-28",
          "window": {
            "start": {
              "local": "2015-12-28T20:44:08+04:00",
              "utc": "2015-12-28T16:44:08Z",
              "ms": 1451321048362.9487
            },
            "end": {
              "local": "2015-12-28T20:44:08+04:00",
              "utc": "2015-12-28T16:44:08Z",
              "ms": 1451321048362.9487
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2015-12-29",
          "window": {
            "start": {
              "local": "2015-12-29T21:37:39+04:00",
              "utc": "2015-12-29T17:37:39Z",
              "ms": 1451410658949.9805
            },
            "end": {
              "local": "2015-12-29T21:37:39+04:00",
              "utc": "2015-12-29T17:37:39Z",
              "ms": 1451410658949.9805
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:13 on Mon 28 Dec to 13:59 on Tue 29 Dec.",
          "fact": "2015-12-28T09:12:51Z → 2015-12-29T09:58:43Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:44 on the 28th and 21:38 on the 29th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 28th and is not on the 29th.",
          "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 27078 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Abu Dhabi, 2015: Monday 28 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": "2015-12-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2015-12-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Abu Dhabi, Saṅkaṣṭa Caturthī 2015 falls on Monday 28 December. Caturthī runs from 13:13 on Mon 28 Dec to 13:59 on Tue 29 Dec and is current at moonrise that day.",
      "cite": "https://ahargana.org/abu-dhabi/festivals/2015/sankashta-chaturthi?on=2015-12-28",
      "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"
  }
}
