Ruling · Naraka Caturdaśī (Choti Diwali) · 2033

Saturday 22 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 213 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 21 October

Caturdaśī is absent from aruṇodaya. Not taken.

04:50 aruṇodaya beginssunrise 06:34
04:2604:5005:1405:3806:0206:2606:50

0 of 104 minutes covered

Dawn of Saturday 22 October

Taken. The only dawn Caturdaśī reaches.

04:50 aruṇodaya beginssunrise 06:35
04:2604:5005:1405:3806:0206:2606:50

104 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 10:07 on Fri 21 Oct to 12:49 on Sat 22 Oct.

    2033-10-21T02:06:49Z → 2033-10-22T04:48:54Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:50–06:34 on the 21st, 04:50–06:35 on the 22nd.

    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 104 minutes on the 21st and 104 of 104 on the 22nd.

    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 12783 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2033: Saturday 22 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2033 falls on Saturday 22 October. Caturdaśī runs from 10:07 on Fri 21 Oct to 12:49 on Sat 22 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2033/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 22 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 22 Oct
compat-drikpanchangComparison profileSat 22 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 21stCoveredAruṇodaya 22ndCoveredRuled
Los Angeles19:07 → 21:4905:21103 min05:210 min21 Oct
Chicago21:07 → 23:4905:25105 min05:260 min21 Oct
Jersey City22:07 → 00:4905:30105 min05:310 min21 Oct
Port of Spain22:07 → 00:4904:1897 min04:180 min21 Oct
London03:07 → 05:4905:46109 min05:471 min21 Oct
Durban04:07 → 06:4903:4365 min03:4388 min21 Oct
Dubai06:07 → 08:4904:4013 min04:40101 min21 Oct
Delhi07:37 → 10:1904:450 min04:45102 min22 Oct
Kolkata07:37 → 10:1903:560 min03:56100 min22 Oct
Singapore10:07 → 12:4905:120 min05:1295 min22 Oct
Sydney13:07 → 15:4904:400 min04:3987 min22 Oct
Suva14:07 → 16:4904:020 min04:0291 min22 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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