Ruling · Naraka Caturdaśī (Choti Diwali) · 1965

Saturday 23 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 173 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 23 October

Taken. The only dawn Caturdaśī reaches.

04:51 aruṇodaya beginssunrise 06:35
04:2704:5105:1505:3906:0306:2706:51

105 of 105 minutes covered

Dawn of Sunday 24 October

Caturdaśī is absent from aruṇodaya. Not taken.

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

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 01:58 on Sat 23 Oct to 23:53 on Sat 23 Oct.

    1965-10-22T17:58:01Z → 1965-10-23T15:53:02Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:51–06:35 on the 23rd, 04:51–06:36 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 10360 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1965: Saturday 23 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1965 falls on Saturday 23 October. Caturdaśī runs from 01:58 on Sat 23 Oct to 23:53 on Sat 23 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1965/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 23 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 23 Oct
compat-drikpanchangComparison profileSat 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 Angeles10:58 → 08:5305:210 min05:22103 min23 Oct
Chicago12:58 → 10:5305:260 min05:26106 min23 Oct
Jersey City13:58 → 11:5305:300 min05:31105 min23 Oct
Port of Spain13:58 → 11:5304:180 min04:1897 min23 Oct
London18:58 → 16:5305:470 min05:48110 min23 Oct
Durban19:58 → 17:5303:430 min03:4288 min23 Oct
Dubai21:58 → 19:5304:400 min04:40101 min23 Oct
Delhi23:28 → 21:2304:450 min04:45102 min23 Oct
Kolkata23:28 → 21:2303:560 min03:56100 min23 Oct
Singapore01:28 → 23:2304:420 min04:4195 min23 Oct
Sydney03:58 → 01:5303:390 min03:3867 min23 Oct
Suva05:58 → 03:5304:020 min04:010 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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