Ruling · Naraka Caturdaśī (Choti Diwali) · 2070

Saturday 1 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 19 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 1 November

Taken. Both dawns qualify; the rule takes the first.

04:58 aruṇodaya beginssunrise 06:46
04:3404:5805:2205:4606:1006:3406:58

108 of 108 minutes covered

Dawn of Sunday 2 November

Qualifies with 19 of 108 minutes. Not taken.

04:59 aruṇodaya beginssunrise 06:47
Caturdaśī ends 05:17:39
04:3504:5905:2305:4706:1106:3506:59

19 of 108 minutes covered, the first 19

Caturdaśī presentAruṇodaya, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 04:16 on Sat 1 Nov to 05:18 on Sun 2 Nov.

    2070-10-31T20:15:58Z → 2070-11-01T21:17:40Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:58–06:46 on the 1st, 04:59–06:47 on the 2nd.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 108 of 108 minutes on the 1st and 19 of 108 on the 2nd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both dawns qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1133 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2070: Saturday 1 November.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2070 falls on Saturday 1 November. Caturdaśī runs from 04:16 on Sat 1 Nov to 05:18 on Sun 2 Nov and covers all of aruṇodaya that dawn. It also reaches the next dawn for 19 minutes; by the rule the first dawn is taken.

ahargana.org/baoding/festivals/2070/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 1 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 1 Nov
compat-drikpanchangComparison profileSat 1 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 31stCoveredAruṇodaya 1stCoveredRuled
Los Angeles13:16 → 14:1805:270 min05:28106 min1 Nov
Chicago15:16 → 16:1805:340 min05:35109 min1 Nov
Jersey City16:16 → 17:1805:380 min05:39109 min1 Nov
Port of Spain16:16 → 17:1804:190 min04:2098 min1 Nov
London20:16 → 21:1804:590 min05:00115 min1 Nov
Durban22:16 → 23:1803:360 min03:3686 min1 Nov
Dubai00:16 → 01:1804:440 min04:44102 min1 Nov
Delhi01:46 → 02:4804:490 min04:50104 min1 Nov
Kolkata01:46 → 02:4803:590 min04:00102 min1 Nov
Singapore04:16 → 05:1805:110 min05:1195 min1 Nov
Sydney07:16 → 08:1804:320 min04:310 min2 Nov
Suva08:16 → 09:1803:580 min03:570 min2 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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