Ruling · Naraka Caturdaśī (Choti Diwali) · 1988

Tuesday 8 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 469 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 Tuesday 8 November

Taken. The only dawn Caturdaśī reaches.

05:03 aruṇodaya beginssunrise 06:53
04:3905:0305:2705:5106:1506:3907:03

110 of 110 minutes covered

Dawn of Wednesday 9 November

Caturdaśī is absent from aruṇodaya. Not taken.

05:04 aruṇodaya beginssunrise 06:54
04:4005:0405:2805:5206:1606:4007:04

0 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 19:39 on Mon 7 Nov to 21:15 on Tue 8 Nov.

    1988-11-07T11:39:24Z → 1988-11-08T13:14:58Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:03–06:53 on the 8th, 05:04–06:54 on the 9th.

    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 8th and 0 of 110 on the 9th.

    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 28162 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1988: Tuesday 8 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1988 falls on Tuesday 8 November. Caturdaśī runs from 19:39 on Mon 7 Nov to 21:15 on Tue 8 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1988/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 8 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 8 Nov
compat-drikpanchangComparison profileTue 8 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 7thCoveredAruṇodaya 8thCoveredRuled
Los Angeles03:39 → 05:1504:32107 min04:3243 min7 Nov
Chicago05:39 → 07:1504:4052 min04:41111 min7 Nov
Jersey City06:39 → 08:1504:440 min04:45111 min8 Nov
Port of Spain07:39 → 09:1504:210 min04:2199 min8 Nov
London11:39 → 13:1505:080 min05:09118 min8 Nov
Durban13:39 → 15:1503:320 min03:3285 min8 Nov
Dubai15:39 → 17:1504:470 min04:47104 min8 Nov
Delhi17:09 → 18:4504:530 min04:54105 min8 Nov
Kolkata17:09 → 18:4504:020 min04:03103 min8 Nov
Singapore19:39 → 21:1505:110 min05:1196 min8 Nov
Sydney22:39 → 00:1504:270 min04:2683 min8 Nov
Suva23:39 → 01:1503:550 min03:5589 min8 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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