Ruling · Candra Ṣaṣṭhī · 2091

Wednesday 3 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 443 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two moonrises

One ghaṭī is 24 minutes. The moonrise is read as disc centre, 31′.

Moonrise of Wednesday 3 October

Taken. The only moonrise Ṣaṣṭhī holds at.

20:30 moonrise
19:1819:4220:0620:3020:5421:1821:42

Holds at moonrise

Moonrise of Thursday 4 October

Ṣaṣṭhī does not hold at moonrise. Not taken.

21:13 moonrise
20:0120:2520:4921:1321:3722:0122:25

Absent at moonrise

Ṣaṣṭhī presentMoonrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 11:48 on Wed 3 Oct to 13:49 on Thu 4 Oct.

    2091-10-03T03:47:45Z → 2091-10-04T05:49:11Z

  2. 02

    Kāla

    Moonrise is at 20:30 on the 3rd and 21:13 on the 4th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 3rd and is not on the 4th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 26601 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Daqing, 2091: Wednesday 3 October.

    confidence: determinate

Say it like this

In Daqing, Candra Ṣaṣṭhī 2091 falls on Wednesday 3 October. Ṣaṣṭhī runs from 11:48 on Wed 3 Oct to 13:49 on Thu 4 Oct and is current at moonrise that day.

ahargana.org/daqing/festivals/2091/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 3 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 3 Oct
compat-drikpanchangComparison profileWed 3 Oct
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/chandra-shashthi · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Kṛṣṇa · Ṣaṣṭhī
Kāla
Moonrise
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“K 6 Candra sasthi (Sasthi 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. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMoonrise 3rdCoveredMoonrise 4thCoveredRuled
Los Angeles20:48 → 22:4922:42holds23:30no2 Oct
Chicago22:48 → 00:4922:18holds23:05no3 Oct
Jersey City23:48 → 01:4922:25holds23:11no3 Oct
Port of Spain23:48 → 01:4922:26holds23:15no3 Oct
London04:48 → 06:4921:49holds22:32no3 Oct
Durban05:48 → 07:4923:03holds23:54no3 Oct
Dubai07:48 → 09:4922:02holds22:49no3 Oct
Delhi09:18 → 11:1921:56holds22:42no3 Oct
Kolkata09:18 → 11:1921:20holds22:06no3 Oct
Singapore11:48 → 13:4923:16holds00:04no3 Oct
Sydney13:48 → 15:4922:53holds23:45no3 Oct
Suva15:48 → 17:4922:34holds23:24no3 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
chandra-shashthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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