Ruling · Naraka Caturdaśī (Choti Diwali) · 2012

Tuesday 13 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 165 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 Monday 12 November

Caturdaśī is absent from aruṇodaya. Not taken.

05:07 aruṇodaya beginssunrise 06:58
04:4305:0705:3105:5506:1906:4307:0707:31

0 of 111 minutes covered

Dawn of Tuesday 13 November

Taken. The only dawn Caturdaśī reaches.

05:08 aruṇodaya beginssunrise 06:59
04:4405:0805:3205:5606:2006:4407:0807:32

111 of 111 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 13:04 on Mon 12 Nov to 09:44 on Tue 13 Nov.

    2012-11-12T05:03:41Z → 2012-11-13T01:43:44Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:07–06:58 on the 12th, 05:08–06:59 on the 13th.

    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 111 minutes on the 12th and 111 of 111 on the 13th.

    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 9897 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2012: Tuesday 13 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2012 falls on Tuesday 13 November. Caturdaśī runs from 13:04 on Mon 12 Nov to 09:44 on Tue 13 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2012/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 13 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 13 Nov
compat-drikpanchangComparison profileTue 13 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 12thCoveredAruṇodaya 13thCoveredRuled
Los Angeles21:04 → 17:4404:35108 min04:360 min12 Nov
Chicago23:04 → 19:4404:45113 min04:460 min12 Nov
Jersey City00:04 → 20:4404:49112 min04:490 min12 Nov
Port of Spain01:04 → 21:4404:2299 min04:220 min12 Nov
London05:04 → 01:4405:15120 min05:160 min12 Nov
Durban07:04 → 03:4403:300 min03:3014 min13 Nov
Dubai09:04 → 05:4404:500 min04:5054 min13 Nov
Delhi10:34 → 07:1404:560 min04:57106 min13 Nov
Kolkata10:34 → 07:1404:040 min04:05103 min13 Nov
Singapore13:04 → 09:4405:120 min05:1296 min13 Nov
Sydney16:04 → 12:4404:240 min04:2482 min13 Nov
Suva18:04 → 14:4404:540 min04:5489 min13 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

About Ahargaṇa