Ruling · Karaka Caturthī (Karwa Chauth) · 2009

Wednesday 7 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 421 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 7 October

Taken. The only moonrise Caturthī holds at.

19:17 moonrise
18:0518:2918:5319:1719:4120:0520:29

Holds at moonrise

Moonrise of Thursday 8 October

Caturthī does not hold at moonrise. Not taken.

20:05 moonrise
18:5319:1719:4120:0520:2920:5321:17

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 12:16 on Wed 7 Oct to 10:58 on Thu 8 Oct.

    2009-10-07T04:16:03Z → 2009-10-08T02:58:12Z

  2. 02

    Kāla

    Moonrise is at 19:17 on the 7th and 20:05 on the 8th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.

    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 25269 s

  5. 05

    Ruling

    Karaka Caturthī, Baoding, 2009: Wednesday 7 October.

    confidence: determinate

Say it like this

In Baoding, Karaka Caturthī (Karwa Chauth) 2009 falls on Wednesday 7 October. Caturthī runs from 12:16 on Wed 7 Oct to 10:58 on Thu 8 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/2009/karaka-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 7 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 7 Oct
compat-drikpanchangComparison profileWed 7 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 7thCoveredMoonrise 8thCoveredRuled
Los Angeles21:16 → 19:5820:37no21:32no6 Oct
Chicago23:16 → 21:5820:05holds20:57no7 Oct
Jersey City00:16 → 22:5820:13holds21:05no7 Oct
Port of Spain00:16 → 22:5820:36holds21:33no7 Oct
London05:16 → 03:5819:22holds20:06no7 Oct
Durban06:16 → 04:5821:33holds22:37no7 Oct
Dubai08:16 → 06:5820:01holds20:55no7 Oct
Delhi09:46 → 08:2819:52holds20:44no7 Oct
Kolkata09:46 → 08:2819:20holds20:13no7 Oct
Singapore12:16 → 10:5821:26holds22:24no7 Oct
Sydney15:16 → 13:5822:21holds23:27no7 Oct
Suva16:16 → 14:5820:51holds21:53no7 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