Ruling · Candra Ṣaṣṭhī · 1920

Saturday 2 October

Boundaryin Multan, under the Rashtriya Panchang method. Ṣaṣṭhī reaches moonrise on neither day and the rule does not say what then. Say “contested”.

Decide it for

30°12′ N 71°29′ E · Asia/Karachi · GeoNames 1169825

The two moonrises

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

Moonrise of Saturday 2 October

Taken. Ṣaṣṭhī reaches neither moonrise; this is the day it falls on.

21:43 moonrise
20:3120:5521:1921:4322:0722:3122:55

Absent at moonrise

Moonrise of Sunday 3 October

Ṣaṣṭhī does not hold at moonrise. Not taken.

22:40 moonrise
Ṣaṣṭhī ends 21:39:41
21:2821:5222:1622:4023:0423:2823:52

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 23:46 on Sat 2 Oct to 21:40 on Sun 3 Oct.

    1920-10-02T18:16:15Z → 1920-10-03T16:09:42Z

  2. 02

    Kāla

    Moonrise is at 21:43 on the 2nd and 22:40 on the 3rd.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is not on the 2nd and is not on the 3rd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Neither moonrise qualifies. The day the tithi falls on is taken.

    priority: purvaviddha → tithi-day · margin 3602 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Multan, 1920: Saturday 2 October.

    confidence: boundary (absent-unstated)

Say it like this

In Multan, Candra Ṣaṣṭhī 1920 falls on Saturday 2 October. Ṣaṣṭhī runs from 23:46 on Sat 2 Oct to 21:40 on Sun 3 Oct, and is current at moonrise on neither day.

ahargana.org/multan/festivals/1920/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 2 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 2 Oct
compat-drikpanchangComparison profileSat 2 Oct
No institution has a recorded ruling for Multan.

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 2ndCoveredMoonrise 3rdCoveredRuled
Los Angeles10:16 → 08:1021:13holds22:12no2 Oct
Chicago13:16 → 11:1021:47holds22:46no2 Oct
Jersey City14:16 → 12:1021:54holds22:52no2 Oct
Port of Spain14:16 → 12:1021:58holds22:57no2 Oct
London19:16 → 17:1021:12holds22:09no2 Oct
Durban20:16 → 18:1022:37holds23:36no2 Oct
Dubai22:16 → 20:1021:29no22:27no2 Oct
Delhi23:46 → 21:4021:22no22:19no2 Oct
Kolkata23:46 → 21:4020:46no21:44no2 Oct
Singapore01:16 → 23:1021:44no22:42holds3 Oct
Sydney04:16 → 02:1022:24no23:25holds3 Oct
Suva06:16 → 04:1022:02no23:01holds3 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

About Ahargaṇa