Ruling · Naraka Caturdaśī (Choti Diwali) · 1943

Thursday 28 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 169 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 Wednesday 27 October

Caturdaśī is absent from aruṇodaya. Not taken.

05:53 aruṇodaya beginssunrise 07:39
05:2905:5306:1706:4107:0507:2907:53

0 of 106 minutes covered

Dawn of Thursday 28 October

Taken. The only dawn Caturdaśī reaches.

05:54 aruṇodaya beginssunrise 07:40
05:3005:5406:1806:4207:0607:3007:54

106 of 106 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 10:28 on Wed 27 Oct to 11:01 on Thu 28 Oct.

    1943-10-27T01:27:43Z → 1943-10-28T02:00:55Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:53–07:39 on the 27th, 05:54–07:40 on the 28th.

    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 106 minutes on the 27th and 106 of 106 on the 28th.

    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 10132 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1943: Thursday 28 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1943 falls on Thursday 28 October. Caturdaśī runs from 10:28 on Wed 27 Oct to 11:01 on Thu 28 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1943/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 28 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 28 Oct
compat-drikpanchangComparison profileThu 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 Angeles18:28 → 19:0105:24104 min05:240 min27 Oct
Chicago20:28 → 21:0105:29107 min05:300 min27 Oct
Jersey City21:28 → 22:0105:34107 min05:350 min27 Oct
Port of Spain22:28 → 23:0105:1998 min05:190 min27 Oct
London02:28 → 03:0105:52112 min05:540 min27 Oct
Durban04:28 → 05:0104:4087 min04:3922 min27 Oct
Dubai05:28 → 06:0104:4255 min04:4279 min27 Oct
Delhi07:58 → 08:3105:470 min05:47103 min28 Oct
Kolkata07:58 → 08:3104:570 min04:58101 min28 Oct
Singapore10:28 → 11:0106:110 min06:1195 min28 Oct
Sydney12:28 → 13:0104:360 min04:3586 min28 Oct
Suva13:28 → 14:0104:000 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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