Ruling · Naraka Caturdaśī (Choti Diwali) · 2054

Friday 30 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 12 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 Thursday 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

Dawn of Friday 30 October

Taken. The only dawn Caturdaśī reaches.

04:56 aruṇodaya beginssunrise 06:43
Caturdaśī ends 06:31:30
04:3204:5605:2005:4406:0806:3206:56

95 of 107 minutes covered, the first 95

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

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 09:14 on Thu 29 Oct to 06:32 on Fri 30 Oct.

    2054-10-29T01:14:27Z → 2054-10-29T22:31:31Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:55–06:42 on the 29th, 04:56–06:43 on the 30th.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 0 of 107 minutes on the 29th and 95 of 107 on the 30th.

    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 701 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2054: Friday 30 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2054 falls on Friday 30 October. Caturdaśī runs from 09:14 on Thu 29 Oct to 06:32 on Fri 30 Oct and covers 95 of 107 minutes of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2054/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 30 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 30 Oct
compat-drikpanchangComparison profileFri 30 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 29thCoveredAruṇodaya 30thCoveredRuled
Los Angeles18:14 → 15:3205:26105 min05:260 min29 Oct
Chicago20:14 → 17:3205:32108 min05:330 min29 Oct
Jersey City21:14 → 18:3205:36108 min05:370 min29 Oct
Port of Spain21:14 → 18:3204:1998 min04:190 min29 Oct
London01:14 → 22:3204:56113 min04:570 min29 Oct
Durban03:14 → 00:3203:3887 min03:370 min29 Oct
Dubai05:14 → 02:3204:4370 min04:430 min29 Oct
Delhi06:44 → 04:0204:480 min04:490 min29 Oct
Kolkata06:44 → 04:0203:590 min03:593 min30 Oct
Singapore09:14 → 06:3205:110 min05:1181 min30 Oct
Sydney12:14 → 09:3204:330 min04:3285 min30 Oct
Suva13:14 → 10:3203:590 min03:5890 min30 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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