Ruling · Naraka Caturdaśī (Choti Diwali) · 2063

Sunday 21 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 45 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 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

Dawn of Sunday 21 October

Taken. The only dawn Caturdaśī reaches.

04:50 aruṇodaya beginssunrise 06:34
Caturdaśī ends 05:48:21
04:2604:5005:1405:3806:0206:2606:50

59 of 104 minutes covered, the first 59

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

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 08:57 on Sat 20 Oct to 05:48 on Sun 21 Oct.

    2063-10-20T00:57:21Z → 2063-10-20T21:48:22Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 04:49–06:33 on the 20th, 04:50–06:34 on the 21st.

    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 20th and 59 of 104 on the 21st.

    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 2713 s

  5. 05

    Ruling

    Naraka Caturdaśī, Baoding, 2063: Sunday 21 October.

    confidence: determinate

Say it like this

In Baoding, Naraka Caturdaśī (Choti Diwali) 2063 falls on Sunday 21 October. Caturdaśī runs from 08:57 on Sat 20 Oct to 05:48 on Sun 21 Oct and covers 59 of 104 minutes of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2063/naraka-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 21 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 21 Oct
compat-drikpanchangComparison profileSun 21 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 20thCoveredAruṇodaya 21stCoveredRuled
Los Angeles17:57 → 14:4805:20103 min05:210 min20 Oct
Chicago19:57 → 16:4805:24105 min05:250 min20 Oct
Jersey City20:57 → 17:4805:29105 min05:300 min20 Oct
Port of Spain20:57 → 17:4804:1897 min04:180 min20 Oct
London01:57 → 22:4805:45109 min05:460 min20 Oct
Durban02:57 → 23:4803:4489 min03:440 min20 Oct
Dubai04:57 → 01:4804:4082 min04:400 min20 Oct
Delhi06:27 → 03:1804:440 min04:450 min20 Oct
Kolkata06:27 → 03:1803:560 min03:560 min20 Oct
Singapore08:57 → 05:4805:120 min05:1237 min21 Oct
Sydney11:57 → 08:4804:410 min04:4087 min21 Oct
Suva12:57 → 09:4804:030 min04:0291 min21 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

About Ahargaṇa