Ruling · Candra Ṣaṣṭhī · 2024

Sunday 22 September

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 352 minutes.

Decide it for

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two moonrises

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

Moonrise of Sunday 22 September

Taken. The only moonrise Ṣaṣṭhī holds at.

21:36 moonrise
20:2420:4821:1221:3622:0022:2422:48

Holds at moonrise

Moonrise of Monday 23 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

22:29 moonrise
21:1721:4122:0522:2922:5323:1723:41

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 15:44 on Sun 22 Sep to 13:51 on Mon 23 Sep.

    2024-09-22T10:14:00Z → 2024-09-23T08:20:56Z

  2. 02

    Kāla

    Moonrise is at 21:36 on the 22nd and 22:29 on the 23rd.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 22nd and is not on the 23rd.

    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 21138 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Ujjain, 2024: Sunday 22 September.

    confidence: determinate

Say it like this

In Ujjain, Candra Ṣaṣṭhī 2024 falls on Sunday 22 September. Ṣaṣṭhī runs from 15:44 on Sun 22 Sep to 13:51 on Mon 23 Sep and is current at moonrise that day.

ahargana.org/ujjain/festivals/2024/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 22 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 22 Sep
compat-drikpanchangComparison profileSun 22 Sep
No institution has a recorded ruling for Ujjain.

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 22ndCoveredMoonrise 23rdCoveredRuled
Los Angeles03:14 → 01:2122:00holds22:53no22 Sep
Chicago05:14 → 03:2121:25holds22:15no22 Sep
Jersey City06:14 → 04:2121:34holds22:23no22 Sep
Port of Spain06:14 → 04:2122:04holds23:01no22 Sep
London11:14 → 09:2120:38holds21:17no22 Sep
Durban12:14 → 10:2123:08holds00:15no22 Sep
Dubai14:14 → 12:2121:27holds22:19no22 Sep
Delhi15:44 → 13:5121:17holds22:08no22 Sep
Kolkata15:44 → 13:5120:46holds21:39no22 Sep
Singapore18:14 → 16:2122:55holds23:54no22 Sep
Sydney20:14 → 18:2122:56holds00:06no22 Sep
Suva22:14 → 20:2122:23holds23:27no22 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