Ruling · Karaka Caturthī (Karwa Chauth) · 1920

Saturday 30 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 295 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 Saturday 30 October

Taken. The only moonrise Caturthī holds at.

19:40 moonrise
18:2818:5219:1619:4020:0420:2820:52

Holds at moonrise

Moonrise of Sunday 31 October

Caturthī does not hold at moonrise. Not taken.

20:41 moonrise
19:2919:5320:1720:4121:0521:2921:53

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 14:45 on Sat 30 Oct to 12:02 on Sun 31 Oct.

    1920-10-30T06:45:17Z → 1920-10-31T04:01:58Z

  2. 02

    Kāla

    Moonrise is at 19:40 on the 30th and 20:41 on the 31st.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Caturthī must be current at moonrise. It is on the 30th and is not on the 31st.

    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 17672 s

  5. 05

    Ruling

    Karaka Caturthī, Baoding, 1920: Saturday 30 October.

    confidence: determinate

Say it like this

In Baoding, Karaka Caturthī (Karwa Chauth) 1920 falls on Saturday 30 October. Caturthī runs from 14:45 on Sat 30 Oct to 12:02 on Sun 31 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/1920/karaka-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 30 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 30 Oct
compat-drikpanchangComparison profileSat 30 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 30thCoveredMoonrise 31stCoveredRuled
Los Angeles22:45 → 20:0220:05no21:08no29 Oct
Chicago01:45 → 23:0220:38holds20:42no30 Oct
Jersey City02:45 → 00:0220:45holds20:48no30 Oct
Port of Spain02:45 → 00:0220:49holds21:50no30 Oct
London06:45 → 04:0219:01holds20:05no30 Oct
Durban08:45 → 06:0221:29holds22:27no30 Oct
Dubai10:45 → 08:0220:19holds21:20no30 Oct
Delhi12:15 → 09:3220:11holds21:12no30 Oct
Kolkata12:15 → 09:3219:36holds20:36no30 Oct
Singapore13:45 → 11:0220:34holds21:34no30 Oct
Sydney16:45 → 14:0221:16holds22:15no30 Oct
Suva18:45 → 16:0220:53holds21:53no30 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