Ruling · Naraka Caturdaśī (Choti Diwali) · 1917

Tuesday 13 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 188 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 13 November

Taken. The only dawn Caturdaśī reaches.

05:07 aruṇodaya beginssunrise 06:58
04:4305:0705:3105:5506:1906:4307:0707:31

111 of 111 minutes covered

Dawn of Wednesday 14 November

Caturdaśī is absent from aruṇodaya. Not taken.

05:08 aruṇodaya beginssunrise 06:59
04:4405:0805:3205:5606:2006:4407:0807:32

0 of 111 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 01:02 on Tue 13 Nov to 02:00 on Wed 14 Nov.

    1917-11-12T17:02:01Z → 1917-11-13T17:59:48Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:07–06:58 on the 13th, 05:08–06:59 on the 14th.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 111 of 111 minutes on the 13th and 0 of 111 on the 14th.

    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 11291 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1917: Tuesday 13 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1917 falls on Tuesday 13 November. Caturdaśī runs from 01:02 on Tue 13 Nov to 02:00 on Wed 14 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1917/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 13 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 13 Nov
compat-drikpanchangComparison profileTue 13 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 12thCoveredAruṇodaya 13thCoveredRuled
Los Angeles09:02 → 10:0004:350 min04:35108 min13 Nov
Chicago11:02 → 12:0004:440 min04:45113 min13 Nov
Jersey City12:02 → 13:0004:480 min04:49112 min13 Nov
Port of Spain13:02 → 14:0004:220 min04:2299 min13 Nov
London17:02 → 18:0005:130 min05:15120 min13 Nov
Durban19:02 → 20:0003:310 min03:3084 min13 Nov
Dubai20:43 → 21:4104:300 min04:31104 min13 Nov
Delhi22:32 → 23:3004:560 min04:56106 min13 Nov
Kolkata22:32 → 23:3004:040 min04:05103 min13 Nov
Singapore00:02 → 01:0004:110 min04:1296 min13 Nov
Sydney03:02 → 04:0003:250 min03:2482 min13 Nov
Suva05:02 → 06:0003:550 min03:5421 min13 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

About Ahargaṇa