Ruling · Candra Ṣaṣṭhī · 2028

Saturday 9 September

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 293 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 Saturday 9 September

Taken. The only moonrise Ṣaṣṭhī holds at.

21:37 moonrise
20:2520:4921:1321:3722:0122:2522:49

Holds at moonrise

Moonrise of Sunday 10 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

22:23 moonrise
21:1121:3521:5922:2322:4723:1123:35

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 16:14 on Sat 9 Sep to 17:30 on Sun 10 Sep.

    2028-09-09T10:43:53Z → 2028-09-10T11:59:35Z

  2. 02

    Kāla

    Moonrise is at 21:37 on the 9th and 22:23 on the 10th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 9th and is not on the 10th.

    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 17599 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Ujjain, 2028: Saturday 9 September.

    confidence: determinate

Say it like this

In Ujjain, Candra Ṣaṣṭhī 2028 falls on Saturday 9 September. Ṣaṣṭhī runs from 16:14 on Sat 9 Sep to 17:30 on Sun 10 Sep and is current at moonrise that day.

ahargana.org/ujjain/festivals/2028/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 9 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 9 Sep
compat-drikpanchangComparison profileSat 9 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 9thCoveredMoonrise 10thCoveredRuled
Los Angeles03:44 → 05:0022:01holds22:48no9 Sep
Chicago05:44 → 07:0021:32holds22:15no9 Sep
Jersey City06:44 → 08:0021:40holds22:23no9 Sep
Port of Spain06:44 → 08:0021:57holds22:48no9 Sep
London11:44 → 13:0020:54holds21:29no9 Sep
Durban12:44 → 14:0022:51holds23:49no9 Sep
Dubai14:44 → 16:0021:28holds22:13no9 Sep
Delhi16:14 → 17:3021:20holds22:04no9 Sep
Kolkata16:14 → 17:3020:46holds21:32no9 Sep
Singapore18:44 → 20:0022:50holds23:40no9 Sep
Sydney20:44 → 22:0022:41holds23:40no9 Sep
Suva22:44 → 00:0022:14no23:09holds10 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