Ruling · Naraka Caturdaśī (Choti Diwali) · 1999

Sunday 7 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 108 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 6 November

Caturdaśī is absent from aruṇodaya. Not taken.

05:01 aruṇodaya beginssunrise 06:50
04:3705:0105:2505:4906:1306:3707:01

0 of 109 minutes covered

Dawn of Sunday 7 November

Taken. The only dawn Caturdaśī reaches.

05:02 aruṇodaya beginssunrise 06:51
04:3805:0205:2605:5006:1406:3807:02

109 of 109 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 08:38 on Sat 6 Nov to 10:05 on Sun 7 Nov.

    1999-11-06T00:38:18Z → 1999-11-07T02:05:20Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:01–06:50 on the 6th, 05:02–06:51 on the 7th.

    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 109 minutes on the 6th and 109 of 109 on the 7th.

    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 6494 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1999: Sunday 7 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1999 falls on Sunday 7 November. Caturdaśī runs from 08:38 on Sat 6 Nov to 10:05 on Sun 7 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1999/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 7 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 7 Nov
compat-drikpanchangComparison profileSun 7 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 6thCoveredAruṇodaya 7thCoveredRuled
Los Angeles16:38 → 18:0504:30107 min04:310 min6 Nov
Chicago18:38 → 20:0504:38111 min04:390 min6 Nov
Jersey City19:38 → 21:0504:42110 min04:430 min6 Nov
Port of Spain20:38 → 22:0504:2098 min04:210 min6 Nov
London00:38 → 02:0505:06117 min05:070 min6 Nov
Durban02:38 → 04:0503:3385 min03:3333 min6 Nov
Dubai04:38 → 06:0504:46103 min04:4779 min6 Nov
Delhi06:08 → 07:3504:5228 min04:53105 min6 Nov
Kolkata06:08 → 07:3504:010 min04:02102 min7 Nov
Singapore08:38 → 10:0505:110 min05:1196 min7 Nov
Sydney11:38 → 13:0504:280 min04:2783 min7 Nov
Suva12:38 → 15:0503:560 min04:5689 min7 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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