Ruling · Naraka Caturdaśī (Choti Diwali) · 2099

Wednesday 11 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 186 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 11 November

Taken. The only dawn Caturdaśī reaches.

05:06 aruṇodaya beginssunrise 06:57
04:4205:0605:3005:5406:1806:4207:0607:30

110 of 110 minutes covered

Dawn of Thursday 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

Caturdaśī presentAruṇodaya, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 02:00 on Wed 11 Nov to 22:43 on Wed 11 Nov.

    2099-11-10T18:00:27Z → 2099-11-11T14:43:20Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:06–06:57 on the 11th, 05:07–06:58 on the 12th.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 110 of 110 minutes on the 11th and 0 of 111 on the 12th.

    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 11152 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2099: Wednesday 11 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2099 falls on Wednesday 11 November. Caturdaśī runs from 02:00 on Wed 11 Nov to 22:43 on Wed 11 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2099/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 11 Nov
compat-drikpanchangComparison profileWed 11 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 10thCoveredAruṇodaya 11thCoveredRuled
Los Angeles10:00 → 06:4304:340 min04:35108 min11 Nov
Chicago12:00 → 08:4304:430 min04:44112 min11 Nov
Jersey City13:00 → 09:4304:470 min04:48112 min11 Nov
Port of Spain14:00 → 10:4304:220 min04:2299 min11 Nov
London18:00 → 14:4305:120 min05:13119 min11 Nov
Durban20:00 → 16:4303:310 min03:3184 min11 Nov
Dubai22:00 → 18:4304:490 min04:49104 min11 Nov
Delhi23:30 → 20:1304:550 min04:56105 min11 Nov
Kolkata23:30 → 20:1304:040 min04:04103 min11 Nov
Singapore02:00 → 22:4305:120 min05:1296 min11 Nov
Sydney05:00 → 01:4304:250 min04:2546 min11 Nov
Suva06:00 → 02:4303:550 min03:550 min11 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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