Ruling · Karaka Caturthī (Karwa Chauth) · 1921

Thursday 20 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 607 minutes.

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 Wednesday 19 October

Caturthī does not hold at moonrise. Not taken.

19:13 moonrise
18:0118:2518:4919:1319:3720:0120:25

Absent at moonrise

Moonrise of Thursday 20 October

Taken. The only moonrise Caturthī holds at.

20:00 moonrise
18:4819:1219:3620:0020:2420:4821:12

Holds 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 06:59 on Thu 20 Oct to 06:07 on Fri 21 Oct.

    1921-10-19T22:58:54Z → 1921-10-20T22:07:16Z

  2. 02

    Kāla

    Moonrise is at 19:13 on the 19th and 20:00 on the 20th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Caturthī must be current at moonrise. It is not on the 19th and is on the 20th.

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

  4. 04

    Tie-break

    Only one moonrise qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 36429 s

  5. 05

    Ruling

    Karaka Caturthī, Baoding, 1921: Thursday 20 October.

    confidence: determinate

Say it like this

In Baoding, Karaka Caturthī (Karwa Chauth) 1921 falls on Thursday 20 October. Caturthī runs from 06:59 on Thu 20 Oct to 06:07 on Fri 21 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/1921/karaka-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 20 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 20 Oct
compat-drikpanchangComparison profileThu 20 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 19thCoveredMoonrise 20thCoveredRuled
Los Angeles14:59 → 14:0719:28holds20:19no19 Oct
Chicago17:59 → 17:0720:05holds20:54no19 Oct
Jersey City17:59 → 17:0719:11holds20:01no19 Oct
Port of Spain18:59 → 18:0720:08holds21:02no19 Oct
London22:59 → 22:0718:37no19:22holds20 Oct
Durban00:59 → 00:0720:40no21:37holds20 Oct
Dubai02:59 → 02:0719:45no20:35holds20 Oct
Delhi04:29 → 03:3719:39no20:28holds20 Oct
Kolkata04:29 → 03:3719:02no19:52holds20 Oct
Singapore05:59 → 05:0719:55no20:48holds20 Oct
Sydney08:59 → 08:0720:26no21:25holds20 Oct
Suva10:59 → 10:0720:09no21:05holds20 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

About Ahargaṇa