Ruling · Naraka Caturdaśī (Choti Diwali) · 1976

Friday 22 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 514 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 Friday 22 October

Taken. The only dawn Caturdaśī reaches.

04:50 aruṇodaya beginssunrise 06:35
04:2604:5005:1405:3806:0206:2606:50

104 of 104 minutes covered

Dawn of Saturday 23 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 20:16 on Thu 21 Oct to 16:50 on Fri 22 Oct.

    1976-10-21T12:16:27Z → 1976-10-22T08:49:50Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:50–06:35 on the 22nd, 04:51–06:36 on the 23rd.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 104 of 104 minutes on the 22nd and 0 of 105 on the 23rd.

    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 30825 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1976: Friday 22 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1976 falls on Friday 22 October. Caturdaśī runs from 20:16 on Thu 21 Oct to 16:50 on Fri 22 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1976/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 22 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 22 Oct
compat-drikpanchangComparison profileFri 22 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 21stCoveredAruṇodaya 22ndCoveredRuled
Los Angeles05:16 → 01:5005:21103 min05:210 min21 Oct
Chicago07:16 → 03:5005:250 min05:260 min21 Oct
Jersey City08:16 → 04:5005:300 min05:310 min21 Oct
Port of Spain08:16 → 04:5004:180 min04:1831 min22 Oct
London13:16 → 09:5005:460 min05:47110 min22 Oct
Durban14:16 → 10:5003:440 min03:4388 min22 Oct
Dubai16:16 → 12:5004:400 min04:40101 min22 Oct
Delhi17:46 → 14:2004:450 min04:45101 min22 Oct
Kolkata17:46 → 14:2003:560 min03:56100 min22 Oct
Singapore19:46 → 16:2004:420 min04:4295 min22 Oct
Sydney22:16 → 18:5003:400 min03:3987 min22 Oct
Suva00:16 → 20:5004:020 min04:0291 min22 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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