Ruling · Naraka Caturdaśī (Choti Diwali) · 2091

Saturday 10 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 523 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Friday 9 November

Caturdaśī is absent from aruṇodaya. Not taken.

05:05 aruṇodaya beginssunrise 06:54
04:4105:0505:2905:5306:1706:4107:0507:29

0 of 110 minutes covered

Dawn of Saturday 10 November

Taken. The only dawn Caturdaśī reaches.

05:05 aruṇodaya beginssunrise 06:55
04:4105:0505:2905:5306:1706:4107:0507:29

110 of 110 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 19:24 on Fri 9 Nov to 15:39 on Sat 10 Nov.

    2091-11-09T11:24:14Z → 2091-11-10T07:38:34Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:05–06:54 on the 9th, 05:05–06:55 on the 10th.

    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 110 minutes on the 9th and 110 of 110 on the 10th.

    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 31387 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2091: Saturday 10 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2091 falls on Saturday 10 November. Caturdaśī runs from 19:24 on Fri 9 Nov to 15:39 on Sat 10 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2091/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 10 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 10 Nov
compat-drikpanchangComparison profileSat 10 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 9thCoveredAruṇodaya 10thCoveredRuled
Los Angeles03:24 → 23:3904:33108 min04:340 min9 Nov
Chicago05:24 → 01:3904:4269 min04:430 min9 Nov
Jersey City06:24 → 02:3904:4613 min04:470 min9 Nov
Port of Spain07:24 → 03:3904:210 min04:220 min9 Nov
London11:24 → 07:3905:110 min05:12119 min10 Nov
Durban13:24 → 09:3903:320 min03:3184 min10 Nov
Dubai15:24 → 11:3904:480 min04:49104 min10 Nov
Delhi16:54 → 13:0904:540 min04:55105 min10 Nov
Kolkata16:54 → 13:0904:030 min04:04103 min10 Nov
Singapore19:24 → 15:3905:110 min05:1196 min10 Nov
Sydney22:24 → 18:3904:260 min04:2582 min10 Nov
Suva23:24 → 19:3903:550 min03:5589 min10 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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