Ruling · Karaka Caturthī (Karwa Chauth) · 1940

Sunday 20 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 216 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 19 October

Caturthī does not hold at moonrise. Not taken.

19:31 moonrise
18:1918:4319:0719:3119:5520:1920:43

Absent at moonrise

Moonrise of Sunday 20 October

Taken. The only moonrise Caturthī holds at.

20:13 moonrise
19:0119:2519:4920:1320:3721:0121:25

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 23:06 on Sat 19 Oct to 00:43 on Mon 21 Oct.

    1940-10-19T15:06:09Z → 1940-10-20T16:42:42Z

  2. 02

    Kāla

    Moonrise is at 19:31 on the 19th and 20:13 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 12938 s

  5. 05

    Ruling

    Karaka Caturthī, Baoding, 1940: Sunday 20 October.

    confidence: determinate

Say it like this

In Baoding, Karaka Caturthī (Karwa Chauth) 1940 falls on Sunday 20 October. Caturthī runs from 23:06 on Sat 19 Oct to 00:43 on Mon 21 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/1940/karaka-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 20 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 20 Oct
compat-drikpanchangComparison profileSun 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 Angeles07:06 → 08:4319:42holds20:29no19 Oct
Chicago09:06 → 10:4319:20holds20:05no19 Oct
Jersey City10:06 → 11:4319:27holds20:12no19 Oct
Port of Spain11:06 → 12:4320:24holds21:12no19 Oct
London16:06 → 17:4319:53holds20:34no19 Oct
Durban17:06 → 18:4320:57holds21:49no19 Oct
Dubai19:06 → 20:4320:02holds20:48no19 Oct
Delhi20:36 → 22:1319:56no20:41holds20 Oct
Kolkata20:36 → 22:1319:19no20:05holds20 Oct
Singapore22:26 → 00:0320:33no21:21holds20 Oct
Sydney01:06 → 02:4320:46no21:38holds20 Oct
Suva03:06 → 04:4320:29no21:19holds20 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