Ruling · Naraka Caturdaśī (Choti Diwali) · 1935

Saturday 26 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 468 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 Friday 25 October

Caturdaśī is absent from aruṇodaya. Not taken.

04:52 aruṇodaya beginssunrise 06:37
04:2804:5205:1605:4006:0406:2806:52

0 of 105 minutes covered

Dawn of Saturday 26 October

Taken. The only dawn Caturdaśī reaches.

04:52 aruṇodaya beginssunrise 06:38
04:2804:5205:1605:4006:0406:2806:52

105 of 105 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 14:25 on Fri 25 Oct to 16:30 on Sat 26 Oct.

    1935-10-25T06:24:43Z → 1935-10-26T08:30:03Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:52–06:37 on the 25th, 04:52–06:38 on the 26th.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 0 of 105 minutes on the 25th and 105 of 105 on the 26th.

    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 28083 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 1935: Saturday 26 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 1935 falls on Saturday 26 October. Caturdaśī runs from 14:25 on Fri 25 Oct to 16:30 on Sat 26 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1935/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 26 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 26 Oct
compat-drikpanchangComparison profileSat 26 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 25thCoveredAruṇodaya 26thCoveredRuled
Los Angeles22:25 → 00:3004:22104 min04:230 min25 Oct
Chicago00:25 → 02:3004:28106 min04:280 min25 Oct
Jersey City01:25 → 03:3004:32106 min04:330 min25 Oct
Port of Spain02:25 → 04:3004:1998 min04:1911 min25 Oct
London06:25 → 08:3004:5016 min04:51111 min25 Oct
Durban08:25 → 10:3003:410 min03:4188 min26 Oct
Dubai10:25 → 12:3004:410 min04:41101 min26 Oct
Delhi11:55 → 14:0004:460 min04:46102 min26 Oct
Kolkata11:55 → 14:0003:570 min03:57100 min26 Oct
Singapore13:45 → 15:5004:310 min04:3195 min26 Oct
Sydney16:25 → 18:3003:370 min03:3686 min26 Oct
Suva18:25 → 20:3004:010 min04:0091 min26 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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