Ruling · Naraka Caturdaśī (Choti Diwali) · 1975

Sunday 2 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 79 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 Sunday 2 November

Taken. The only dawn Caturdaśī reaches.

04:58 aruṇodaya beginssunrise 06:46
04:3404:5805:2205:4606:1006:3406:58

108 of 108 minutes covered

Dawn of Monday 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 03:39 on Sun 2 Nov to 00:18 on Mon 3 Nov.

    1975-11-01T19:38:39Z → 1975-11-02T16:17:37Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:58–06:46 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 4759 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1975: Sunday 2 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1975 falls on Sunday 2 November. Caturdaśī runs from 03:39 on Sun 2 Nov to 00:18 on Mon 3 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1975/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 2 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 2 Nov
compat-drikpanchangComparison profileSun 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 Angeles11:39 → 08:1804:270 min04:28106 min2 Nov
Chicago13:39 → 10:1804:340 min04:35109 min2 Nov
Jersey City14:39 → 11:1804:380 min04:39109 min2 Nov
Port of Spain15:39 → 12:1804:190 min04:2098 min2 Nov
London19:39 → 16:1804:590 min05:00115 min2 Nov
Durban21:39 → 18:1803:360 min03:3686 min2 Nov
Dubai23:39 → 20:1804:440 min04:44102 min2 Nov
Delhi01:09 → 21:4804:490 min04:50104 min2 Nov
Kolkata01:09 → 21:4803:590 min04:00102 min2 Nov
Singapore03:09 → 23:4804:410 min04:4195 min2 Nov
Sydney06:39 → 03:1804:310 min04:310 min2 Nov
Suva07:39 → 04:1803:580 min03:570 min3 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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