Ruling · Candra Ṣaṣṭhī · 2049

Thursday 16 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 227 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 16 September

Taken. The only moonrise Ṣaṣṭhī holds at.

20:04 moonrise
18:5219:1619:4020:0420:2820:5221:16

Holds at moonrise

Moonrise of Friday 17 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

20:48 moonrise
19:3620:0020:2420:4821:1221:3622:00

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 16:17 on Thu 16 Sep to 16:51 on Fri 17 Sep.

    2049-09-16T08:17:11Z → 2049-09-17T08:50:31Z

  2. 02

    Kāla

    Moonrise is at 20:04 on the 16th and 20:48 on the 17th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 16th and is not on the 17th.

    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 13591 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Daqing, 2049: Thursday 16 September.

    confidence: determinate

Say it like this

In Daqing, Candra Ṣaṣṭhī 2049 falls on Thursday 16 September. Ṣaṣṭhī runs from 16:17 on Thu 16 Sep to 16:51 on Fri 17 Sep and is current at moonrise that day.

ahargana.org/daqing/festivals/2049/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 16 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 16 Sep
compat-drikpanchangComparison profileThu 16 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 16thCoveredMoonrise 17thCoveredRuled
Los Angeles01:17 → 01:5122:22holds23:11no16 Sep
Chicago03:17 → 03:5121:55holds22:43no16 Sep
Jersey City04:17 → 04:5122:02holds22:50no16 Sep
Port of Spain04:17 → 04:5122:11holds23:02no16 Sep
London09:17 → 09:5121:20holds22:04no16 Sep
Durban10:17 → 10:5122:56holds23:51no16 Sep
Dubai12:17 → 12:5121:43holds22:32no16 Sep
Delhi13:47 → 14:2121:36holds22:24no16 Sep
Kolkata13:47 → 14:2121:01holds21:50no16 Sep
Singapore16:17 → 16:5123:01holds23:53no16 Sep
Sydney18:17 → 18:5122:45holds23:42no16 Sep
Suva20:17 → 20:5122:22holds23:16no16 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

About Ahargaṇa