Ruling · Ananta Caturdaśī · 1997

Monday 15 September

Boundaryin Baoding, under the Rashtriya Panchang method. Caturdaśī reaches the first three muhūrtas after sunrise on neither day and the rule does not say what then. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two mornings

One ghaṭī is 24 minutes. The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas.

Morning of Monday 15 September

Taken. Caturdaśī reaches neither morning; this is the day it falls on.

05:59 sunrisethree muhūrtas on 08:29
05:3505:5906:2306:4707:1107:3507:5908:2308:47

0 of 149 minutes covered

Morning of Tuesday 16 September

Caturdaśī holds for 37 of 149 minutes of the first three muhūrtas after sunrise, not all of it. Not taken.

06:00 sunrisethree muhūrtas on 08:29
Caturdaśī ends 06:36:52
05:3606:0006:2406:4807:1207:3608:0008:2408:48

37 of 149 minutes covered, the first 37

Caturdaśī presentThe first three muhūrtas after sunrise, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 10:15 on Mon 15 Sep to 06:37 on Tue 16 Sep.

    1997-09-15T02:14:55Z → 1997-09-15T22:36:53Z

  2. 02

    Kāla

    The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:59–08:29 on the 15th, 06:00–08:29 on the 16th.

    udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 0 of 149 minutes on the 15th and 37 of 149 on the 16th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Neither morning qualifies. The day the tithi falls on is taken.

    priority: unstated → tithi-day · margin 2196 s

  5. 05

    Ruling

    Ananta Caturdaśī, Baoding, 1997: Monday 15 September.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Ananta Caturdaśī 1997 falls on Monday 15 September. Caturdaśī runs from 10:15 on Mon 15 Sep to 06:37 on Tue 16 Sep, and reaches the first three muhūrtas after sunrise on neither day.

ahargana.org/baoding/festivals/1997/ananta-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 15 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 15 Sep
compat-drikpanchangComparison profileMon 15 Sep
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/ananta-chaturdashi · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Caturdaśī
Kāla
The first three muhūrtas after sunrise
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“S 14 Ananta caturdasi (covering three muhurtas from sunrise, but one muhurta in Bengal).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103. In Bengal the row asks for one muhūrta from sunrise; that reading is not applied.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturdaśīSunrise 15thCoveredSunrise 16thCoveredRuled
Los Angeles19:15 → 15:3706:37148 min06:370 min15 Sep
Chicago21:15 → 17:3706:31150 min06:320 min15 Sep
Jersey City22:15 → 18:3706:37150 min06:380 min15 Sep
Port of Spain22:15 → 18:3705:56146 min05:560 min15 Sep
London03:15 → 23:3706:36152 min06:370 min15 Sep
Durban04:15 → 00:3705:55143 min05:530 min15 Sep
Dubai06:15 → 02:3706:05138 min06:050 min15 Sep
Delhi07:45 → 04:0706:0649 min06:070 min15 Sep
Kolkata07:45 → 04:0705:236 min05:240 min15 Sep
Singapore10:15 → 06:3706:570 min06:560 min15 Sep
Sydney12:15 → 08:3705:550 min05:54143 min16 Sep
Suva14:15 → 10:3706:030 min06:02144 min16 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ananta-chaturdashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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