Ruling · Naraka Caturdaśī (Choti Diwali) · 1989

Saturday 28 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 480 minutes.

Decide it for

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

The two dawns

One ghaṭī is 24 minutes. Aruṇodaya is 2 muhūrtas before sunrise.

Dawn of Saturday 28 October

Taken. The only dawn Caturdaśī reaches.

04:55 aruṇodaya beginssunrise 06:41
04:3104:5505:1905:4306:0706:3106:55

106 of 106 minutes covered

Dawn of Sunday 29 October

Caturdaśī is absent from aruṇodaya. Not taken.

04:55 aruṇodaya beginssunrise 06:42
04:3104:5505:1905:4306:0706:3106:55

0 of 107 minutes covered

Caturdaśī presentAruṇodaya, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 18:22 on Fri 27 Oct to 20:55 on Sat 28 Oct.

    1989-10-27T10:22:13Z → 1989-10-28T12:55:28Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:55–06:41 on the 28th, 04:55–06:42 on the 29th.

    arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 106 of 106 minutes on the 28th and 0 of 107 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one dawn qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 28790 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1989: Saturday 28 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1989 falls on Saturday 28 October. Caturdaśī runs from 18:22 on Fri 27 Oct to 20:55 on Sat 28 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1989/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 28 Oct
compat-drikpanchangComparison profileSat 28 Oct
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/naraka-chaturdashi · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturdaśī
Kāla
Aruṇodaya
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“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)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturdaśīAruṇodaya 27thCoveredAruṇodaya 28thCoveredRuled
Los Angeles03:22 → 05:5505:24104 min05:2531 min27 Oct
Chicago05:22 → 07:5505:30107 min05:31108 min27 Oct
Jersey City06:22 → 08:5505:3459 min05:35107 min27 Oct
Port of Spain06:22 → 08:5504:190 min04:1998 min28 Oct
London11:22 → 13:5505:530 min05:55113 min28 Oct
Durban12:22 → 14:5503:390 min03:3887 min28 Oct
Dubai14:22 → 16:5504:420 min04:42102 min28 Oct
Delhi15:52 → 18:2504:470 min04:48103 min28 Oct
Kolkata15:52 → 18:2503:580 min03:58101 min28 Oct
Singapore18:22 → 20:5505:110 min05:1195 min28 Oct
Sydney20:22 → 22:5503:350 min03:3486 min28 Oct
Suva22:22 → 00:5503:590 min03:5991 min28 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
naraka-chaturdashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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