Ruling · Naraka Caturdaśī (Choti Diwali) · 2020

Saturday 14 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 519 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 14 November

Taken. The only dawn Caturdaśī reaches.

05:09 aruṇodaya beginssunrise 07:00
04:4505:0905:3305:5706:2106:4507:0907:33

111 of 111 minutes covered

Dawn of Sunday 15 November

Caturdaśī is absent from aruṇodaya. Not taken.

05:10 aruṇodaya beginssunrise 07:01
04:4605:1005:3405:5806:2206:4607:1007:34

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 20:29 on Fri 13 Nov to 16:48 on Sat 14 Nov.

    2020-11-13T12:29:27Z → 2020-11-14T08:48:13Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:09–07:00 on the 14th, 05:10–07:01 on the 15th.

    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 14th and 0 of 111 on the 15th.

    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 31154 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2020: Saturday 14 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2020 falls on Saturday 14 November. Caturdaśī runs from 20:29 on Fri 13 Nov to 16:48 on Sat 14 Nov and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2020/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 14 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 14 Nov
compat-drikpanchangComparison profileSat 14 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 13thCoveredAruṇodaya 14thCoveredRuled
Los Angeles04:29 → 00:4804:36109 min04:370 min13 Nov
Chicago06:29 → 02:4804:469 min04:470 min13 Nov
Jersey City07:29 → 03:4804:490 min04:500 min13 Nov
Port of Spain08:29 → 04:4804:220 min04:2326 min14 Nov
London12:29 → 08:4805:160 min05:17121 min14 Nov
Durban14:29 → 10:4803:300 min03:2983 min14 Nov
Dubai16:29 → 12:4804:500 min04:51104 min14 Nov
Delhi17:59 → 14:1804:570 min04:57106 min14 Nov
Kolkata17:59 → 14:1804:050 min04:05103 min14 Nov
Singapore20:29 → 16:4805:120 min05:1296 min14 Nov
Sydney23:29 → 19:4804:240 min04:2381 min14 Nov
Suva00:29 → 20:4803:540 min03:5489 min14 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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