Ruling · Candra Ṣaṣṭhī · 2026

Thursday 1 October

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 547 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 Thursday 1 October

Taken. The only moonrise Ṣaṣṭhī holds at.

21:42 moonrise
20:3020:5421:1821:4222:0622:3022:54

Holds at moonrise

Moonrise of Friday 2 October

Ṣaṣṭhī does not hold at moonrise. Not taken.

22:44 moonrise
21:3221:5622:2022:4423:0823:3223:56

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 12:36 on Thu 1 Oct to 10:16 on Fri 2 Oct.

    2026-10-01T07:05:43Z → 2026-10-02T04:45:43Z

  2. 02

    Kāla

    Moonrise is at 21:42 on the 1st and 22:44 on the 2nd.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 1st and is not on the 2nd.

    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 32791 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Ujjain, 2026: Thursday 1 October.

    confidence: determinate

Say it like this

In Ujjain, Candra Ṣaṣṭhī 2026 falls on Thursday 1 October. Ṣaṣṭhī runs from 12:36 on Thu 1 Oct to 10:16 on Fri 2 Oct and is current at moonrise that day.

ahargana.org/ujjain/festivals/2026/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 1 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 1 Oct
compat-drikpanchangComparison profileThu 1 Oct
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 1stCoveredMoonrise 2ndCoveredRuled
Los Angeles00:06 → 21:4622:08no23:13no30 Sep
Chicago02:06 → 23:4621:31holds22:35no1 Oct
Jersey City03:06 → 00:4621:39holds22:43no1 Oct
Port of Spain03:06 → 00:4622:15holds23:18no1 Oct
London08:06 → 05:4620:33holds21:34no1 Oct
Durban09:06 → 06:4623:26holds00:29no1 Oct
Dubai11:06 → 08:4621:32holds22:34no1 Oct
Delhi12:36 → 10:1621:21holds22:22no1 Oct
Kolkata12:36 → 10:1620:51holds21:53no1 Oct
Singapore15:06 → 12:4623:06holds00:08no1 Oct
Sydney17:06 → 14:4623:16holds00:21no1 Oct
Suva19:06 → 16:4622:37holds23:42no1 Oct
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