Ruling · Naraka Caturdaśī (Choti Diwali) · 1918

Saturday 2 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 147 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 2 November

Taken. The only dawn Caturdaśī reaches.

04:58 aruṇodaya beginssunrise 06:45
04:3404:5805:2205:4606:1006:3406:58

108 of 108 minutes covered

Dawn of Sunday 3 November

Caturdaśī is absent from aruṇodaya. Not taken.

04:59 aruṇodaya beginssunrise 06:47
04:3504:5905:2305:4706:1106:3506:59

0 of 108 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 23:58 on Fri 1 Nov to 02:32 on Sun 3 Nov.

    1918-11-01T15:57:37Z → 1918-11-02T18:31:40Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:58–06:45 on the 2nd, 04:59–06:47 on the 3rd.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 108 of 108 minutes on the 2nd and 0 of 108 on the 3rd.

    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 8820 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1918: Saturday 2 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1918 falls on Saturday 2 November. Caturdaśī runs from 23:58 on Fri 1 Nov to 02:32 on Sun 3 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1918/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 2 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 2 Nov
compat-drikpanchangComparison profileSat 2 Nov
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 1stCoveredAruṇodaya 2ndCoveredRuled
Los Angeles07:58 → 10:3204:270 min04:28106 min2 Nov
Chicago09:58 → 12:3204:340 min04:35109 min2 Nov
Jersey City10:58 → 13:3204:380 min04:39109 min2 Nov
Port of Spain11:58 → 14:3204:190 min04:2098 min2 Nov
London15:58 → 18:3204:590 min05:00115 min2 Nov
Durban17:58 → 20:3203:360 min03:3686 min2 Nov
Dubai19:39 → 22:1304:250 min04:25102 min2 Nov
Delhi21:28 → 00:0204:490 min04:50104 min2 Nov
Kolkata21:28 → 00:0203:590 min04:00102 min2 Nov
Singapore22:58 → 01:3204:110 min04:1195 min2 Nov
Sydney01:58 → 04:3203:320 min03:3184 min2 Nov
Suva03:58 → 06:3203:580 min03:5790 min2 Nov
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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