Ruling · Candra Ṣaṣṭhī · 1915

Wednesday 29 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 261 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 Tuesday 28 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

19:14 moonrise
18:0218:2618:5019:1419:3820:0220:26

Absent at moonrise

Moonrise of Wednesday 29 September

Taken. The only moonrise Ṣaṣṭhī holds at.

19:54 moonrise
18:4219:0619:3019:5420:1820:4221:06

Holds 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 23:35 on Tue 28 Sep to 02:01 on Thu 30 Sep.

    1915-09-28T15:35:05Z → 1915-09-29T18:01:03Z

  2. 02

    Kāla

    Moonrise is at 19:14 on the 28th and 19:54 on the 29th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is not on the 28th and is on the 29th.

    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 15672 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Daqing, 1915: Wednesday 29 September.

    confidence: determinate

Say it like this

In Daqing, Candra Ṣaṣṭhī 1915 falls on Wednesday 29 September. Ṣaṣṭhī runs from 23:35 on Tue 28 Sep to 02:01 on Thu 30 Sep and is current at moonrise that day.

ahargana.org/daqing/festivals/1915/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 29 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 29 Sep
compat-drikpanchangComparison profileWed 29 Sep
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 28thCoveredMoonrise 29thCoveredRuled
Los Angeles07:35 → 10:0120:43holds21:31no28 Sep
Chicago09:35 → 12:0120:09holds20:55no28 Sep
Jersey City10:35 → 13:0120:17holds21:04no28 Sep
Port of Spain11:35 → 14:0121:47holds22:37no28 Sep
London15:35 → 18:0119:20holds20:01no28 Sep
Durban17:35 → 20:0122:55holds23:49no28 Sep
Dubai19:16 → 21:4220:53holds21:40holds28 Sep
Delhi21:05 → 23:3121:02no21:49holds29 Sep
Kolkata21:05 → 23:3120:32no21:19holds29 Sep
Singapore22:35 → 01:0121:43no22:33holds29 Sep
Sydney01:35 → 04:0122:47no23:43holds29 Sep
Suva03:30 → 05:5622:09no23:02holds29 Sep
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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