Ruling · Karaka Caturthī (Karwa Chauth) · 2089

Saturday 22 October

Boundaryin Baoding, under the Rashtriya Panchang method. Caturthī reaches moonrise on neither day and the rule does not say what then. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two moonrises

One ghaṭī is 24 minutes. The moonrise is read as disc centre, 31′.

Moonrise of Saturday 22 October

Taken. Caturthī reaches neither moonrise; this is the day it falls on.

19:36 moonrise
Caturthī begins 19:44:06
18:2418:4819:1219:3620:0020:2420:48

Absent at moonrise

Moonrise of Sunday 23 October

Caturthī does not hold at moonrise. Not taken.

20:27 moonrise
19:1519:3920:0320:2720:5121:1521:39

Absent at moonrise

Caturthī presentMoonrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 19:44 on Sat 22 Oct to 18:29 on Sun 23 Oct.

    2089-10-22T11:44:06Z → 2089-10-23T10:28:51Z

  2. 02

    Kāla

    Moonrise is at 19:36 on the 22nd and 20:27 on the 23rd.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Caturthī must be current at moonrise. It is not on the 22nd and is not on the 23rd.

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

  4. 04

    Tie-break

    Neither moonrise qualifies. The day the tithi falls on is taken.

    priority: purvaviddha → tithi-day · margin 482 s

  5. 05

    Ruling

    Karaka Caturthī, Baoding, 2089: Saturday 22 October.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Karaka Caturthī (Karwa Chauth) 2089 falls on Saturday 22 October. Caturthī runs from 19:44 on Sat 22 Oct to 18:29 on Sun 23 Oct, and is current at moonrise on neither day.

ahargana.org/baoding/festivals/2089/karaka-chaturthi · 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/karaka-chaturthi · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturthī
Kāla
Moonrise
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“K 4 Karaka caturthi (current at moon-rise, 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.

PlaceCaturthīMoonrise 22ndCoveredMoonrise 23rdCoveredRuled
Los Angeles04:44 → 03:2920:53holds21:48no22 Oct
Chicago06:44 → 05:2920:30holds21:23no22 Oct
Jersey City07:44 → 06:2920:36holds21:29no22 Oct
Port of Spain07:44 → 06:2920:35holds21:30no22 Oct
London12:44 → 11:2919:59holds20:50no22 Oct
Durban13:44 → 12:2921:08holds22:06no22 Oct
Dubai15:44 → 14:2920:10holds21:03no22 Oct
Delhi17:14 → 15:5920:03holds20:56no22 Oct
Kolkata17:14 → 15:5919:27holds20:20no22 Oct
Singapore19:44 → 18:2921:21holds22:16no22 Oct
Sydney22:44 → 21:2921:55no22:54no22 Oct
Suva23:44 → 22:2920:37no21:34holds23 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
karaka-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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