Ruling · Naraka Caturdaśī (Choti Diwali) · 2074

Friday 19 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 221 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 19 October

Taken. The only dawn Caturdaśī reaches.

04:48 aruṇodaya beginssunrise 06:32
04:2404:4805:1205:3606:0006:2406:48

104 of 104 minutes covered

Dawn of Saturday 20 October

Caturdaśī is absent from aruṇodaya. Not taken.

04:49 aruṇodaya beginssunrise 06:33
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 01:07 on Fri 19 Oct to 22:23 on Fri 19 Oct.

    2074-10-18T17:07:26Z → 2074-10-19T14:23:20Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:48–06:32 on the 19th, 04:49–06:33 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 104 of 104 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 13258 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2074: Friday 19 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2074 falls on Friday 19 October. Caturdaśī runs from 01:07 on Fri 19 Oct to 22:23 on Fri 19 Oct and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2074/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 19 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 19 Oct
compat-drikpanchangComparison profileFri 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 Angeles10:07 → 07:2305:190 min05:20102 min19 Oct
Chicago12:07 → 09:2305:230 min05:24105 min19 Oct
Jersey City13:07 → 10:2305:280 min05:29104 min19 Oct
Port of Spain13:07 → 10:2304:180 min04:1997 min19 Oct
London18:07 → 15:2305:430 min05:44108 min19 Oct
Durban19:07 → 16:2303:460 min03:4589 min19 Oct
Dubai21:07 → 18:2304:390 min04:39100 min19 Oct
Delhi22:37 → 19:5304:440 min04:44101 min19 Oct
Kolkata22:37 → 19:5303:550 min03:56100 min19 Oct
Singapore01:07 → 22:2305:120 min05:1295 min19 Oct
Sydney04:07 → 01:2304:430 min04:4288 min19 Oct
Suva05:07 → 02:2304:040 min04:0328 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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