Ruling · Naraka Caturdaśī (Choti Diwali) · 2079

Monday 23 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 194 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 23 October

Taken. The only dawn Caturdaśī reaches.

04:51 aruṇodaya beginssunrise 06:36
04:2704:5105:1505:3906:0306:2706:51

105 of 105 minutes covered

Dawn of Tuesday 24 October

Caturdaśī is absent from aruṇodaya. Not taken.

04:52 aruṇodaya beginssunrise 06:37
04:2804:5205:1605:4006:0406:2806:52

0 of 105 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 01:23 on Mon 23 Oct to 01:38 on Tue 24 Oct.

    2079-10-22T17:23:30Z → 2079-10-23T17:38:18Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:51–06:36 on the 23rd, 04:52–06:37 on the 24th.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 105 of 105 minutes on the 23rd and 0 of 105 on the 24th.

    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 11612 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2079: Monday 23 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2079 falls on Monday 23 October. Caturdaśī runs from 01:23 on Mon 23 Oct to 01:38 on Tue 24 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2079/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 23 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 23 Oct
compat-drikpanchangComparison profileMon 23 Oct
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 22ndCoveredAruṇodaya 23rdCoveredRuled
Los Angeles10:23 → 10:3805:210 min05:22103 min23 Oct
Chicago12:23 → 12:3805:260 min05:27106 min23 Oct
Jersey City13:23 → 13:3805:310 min05:31106 min23 Oct
Port of Spain13:23 → 13:3804:190 min04:1997 min23 Oct
London18:23 → 18:3805:470 min05:49110 min23 Oct
Durban19:23 → 19:3803:430 min03:4288 min23 Oct
Dubai21:23 → 21:3804:400 min04:41101 min23 Oct
Delhi22:53 → 23:0804:450 min04:46102 min23 Oct
Kolkata22:53 → 23:0803:560 min03:57100 min23 Oct
Singapore01:23 → 01:3805:120 min05:1295 min23 Oct
Sydney04:23 → 04:3804:390 min04:3887 min23 Oct
Suva05:23 → 05:3804:020 min04:019 min23 Oct
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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