Ruling · Karaka Caturthī (Karwa Chauth) · 2021

Sunday 24 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 632 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 23 October

Caturthī does not hold at moonrise. Not taken.

19:00 moonrise
17:4818:1218:3619:0019:2419:4820:12

Absent at moonrise

Moonrise of Sunday 24 October

Taken. The only moonrise Caturthī holds at.

19:34 moonrise
18:2218:4619:1019:3419:5820:2220:46

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 05:32 on Sun 24 Oct to 08:14 on Mon 25 Oct.

    2021-10-23T21:32:03Z → 2021-10-25T00:13:54Z

  2. 02

    Kāla

    Moonrise is at 19:00 on the 23rd and 19:34 on the 24th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Caturthī must be current at moonrise. It is not on the 23rd and is on the 24th.

    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 37939 s

  5. 05

    Ruling

    Karaka Caturthī, Baoding, 2021: Sunday 24 October.

    confidence: determinate

Say it like this

In Baoding, Karaka Caturthī (Karwa Chauth) 2021 falls on Sunday 24 October. Caturthī runs from 05:32 on Sun 24 Oct to 08:14 on Mon 25 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/2021/karaka-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 24 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 24 Oct
compat-drikpanchangComparison profileSun 24 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 23rdCoveredMoonrise 25thCoveredRuled
Los Angeles14:32 → 17:1420:10holds21:35no23 Oct
Chicago16:32 → 19:1419:42holds21:01no23 Oct
Jersey City17:32 → 20:1419:50holds21:10no23 Oct
Port of Spain17:32 → 20:1420:04holds21:38no23 Oct
London22:32 → 01:1419:08no20:12no24 Oct
Durban23:32 → 02:1420:54no22:44no24 Oct
Dubai01:32 → 04:1419:37no21:03no24 Oct
Delhi03:02 → 05:4419:30no20:53no24 Oct
Kolkata03:02 → 05:4418:56no20:22no24 Oct
Singapore05:32 → 08:1420:57no22:33no24 Oct
Sydney08:32 → 11:1421:44no23:37no24 Oct
Suva09:32 → 12:1420:20no22:04no24 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