Ruling · Candra Ṣaṣṭhī · 1968

Thursday 12 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 453 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 Thursday 12 September

Taken. The only moonrise Ṣaṣṭhī holds at.

19:56 moonrise
18:4419:0819:3219:5620:2020:4421:08

Holds at moonrise

Moonrise of Friday 13 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

20:24 moonrise
19:1219:3620:0020:2420:4821:1221:36

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 10:32 on Thu 12 Sep to 12:52 on Fri 13 Sep.

    1968-09-12T02:32:28Z → 1968-09-13T04:51:55Z

  2. 02

    Kāla

    Moonrise is at 19:56 on the 12th and 20:24 on the 13th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 12th and is not on the 13th.

    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 27152 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Daqing, 1968: Thursday 12 September.

    confidence: determinate

Say it like this

In Daqing, Candra Ṣaṣṭhī 1968 falls on Thursday 12 September. Ṣaṣṭhī runs from 10:32 on Thu 12 Sep to 12:52 on Fri 13 Sep and is current at moonrise that day.

ahargana.org/daqing/festivals/1968/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 12 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 12 Sep
compat-drikpanchangComparison profileThu 12 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 12thCoveredMoonrise 13thCoveredRuled
Los Angeles19:32 → 21:5222:12no22:52no11 Sep
Chicago21:32 → 23:5221:42holds22:17no12 Sep
Jersey City22:32 → 00:5221:50holds22:26no12 Sep
Port of Spain22:32 → 00:5222:12holds22:58no12 Sep
London03:32 → 05:5221:03holds21:28no12 Sep
Durban04:32 → 06:5223:10holds00:08no12 Sep
Dubai06:32 → 08:5221:42holds22:23no12 Sep
Delhi08:02 → 10:2221:34holds22:13no12 Sep
Kolkata08:02 → 10:2221:01holds21:43no12 Sep
Singapore10:02 → 12:2222:37holds23:24no12 Sep
Sydney12:32 → 14:5223:01holds00:00no12 Sep
Suva14:32 → 16:5222:33holds23:26no12 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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