Ruling · Naraka Caturdaśī (Choti Diwali) · 1960

Wednesday 19 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 426 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Wednesday 19 October

Taken. The only dawn Caturdaśī reaches.

04:48 aruṇodaya beginssunrise 06:31
04:2404:4805:1205:3606:0006:2406:48

103 of 103 minutes covered

Dawn of Thursday 20 October

Caturdaśī is absent from aruṇodaya. Not taken.

04:49 aruṇodaya beginssunrise 06:32
04:2504:4905:1305:3706:0106:2506:49

0 of 104 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 21:42 on Tue 18 Oct to 21:11 on Wed 19 Oct.

    1960-10-18T13:41:54Z → 1960-10-19T13:10:35Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:48–06:31 on the 19th, 04:49–06:32 on the 20th.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 103 of 103 minutes on the 19th and 0 of 104 on the 20th.

    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 25565 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1960: Wednesday 19 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1960 falls on Wednesday 19 October. Caturdaśī runs from 21:42 on Tue 18 Oct to 21:11 on Wed 19 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1960/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 19 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 19 Oct
compat-drikpanchangComparison profileWed 19 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 18thCoveredAruṇodaya 19thCoveredRuled
Los Angeles05:42 → 05:1104:1919 min04:1951 min18 Oct
Chicago08:42 → 08:1105:230 min05:23105 min19 Oct
Jersey City09:42 → 09:1105:270 min05:28104 min19 Oct
Port of Spain09:42 → 09:1104:180 min04:1897 min19 Oct
London13:42 → 13:1104:420 min04:43108 min19 Oct
Durban15:42 → 15:1103:460 min03:4589 min19 Oct
Dubai17:42 → 17:1104:390 min04:39100 min19 Oct
Delhi19:12 → 18:4104:430 min04:44101 min19 Oct
Kolkata19:12 → 18:4103:550 min03:5599 min19 Oct
Singapore21:12 → 20:4104:420 min04:4295 min19 Oct
Sydney23:42 → 23:1103:430 min03:4288 min19 Oct
Suva01:42 → 01:1104:040 min04:0392 min19 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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