Ruling · Candra Ṣaṣṭhī · 2006

Tuesday 12 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 567 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 12 September

Taken. The only moonrise Ṣaṣṭhī holds at.

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

Holds at moonrise

Moonrise of Wednesday 13 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

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

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 10:27 on Tue 12 Sep to 08:38 on Wed 13 Sep.

    2006-09-12T02:27:09Z → 2006-09-13T00:38:24Z

  2. 02

    Kāla

    Moonrise is at 19:54 on the 12th and 20:30 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 34003 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Daqing, 2006: Tuesday 12 September.

    confidence: determinate

Say it like this

In Daqing, Candra Ṣaṣṭhī 2006 falls on Tuesday 12 September. Ṣaṣṭhī runs from 10:27 on Tue 12 Sep to 08:38 on Wed 13 Sep and is current at moonrise that day.

ahargana.org/daqing/festivals/2006/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 12 Sep
compat-drikpanchangComparison profileTue 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 Angeles19:27 → 17:3822:18no23:07no11 Sep
Chicago21:27 → 19:3821:45no22:30no11 Sep
Jersey City22:27 → 20:3821:53no22:39no11 Sep
Port of Spain22:27 → 20:3822:20no23:15no11 Sep
London03:27 → 01:3821:01holds21:35no12 Sep
Durban04:27 → 02:3823:21holds00:27no12 Sep
Dubai06:27 → 04:3821:45holds22:35no12 Sep
Delhi07:57 → 06:0821:36holds22:24no12 Sep
Kolkata07:57 → 06:0821:04holds21:54no12 Sep
Singapore10:27 → 08:3823:11holds00:08no12 Sep
Sydney12:27 → 10:3823:08holds00:17no12 Sep
Suva14:27 → 12:3822:37holds23:40no12 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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