Ruling · Candra Ṣaṣṭhī · 1919

Sunday 14 September

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

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two moonrises

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

Moonrise of Sunday 14 September

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

21:57 moonrise
20:4521:0921:3321:5722:2122:4523:09

Absent at moonrise

Moonrise of Monday 15 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

22:47 moonrise
Ṣaṣṭhī ends 21:39:59
21:3521:5922:2322:4723:1123:3523:59

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 00:04 on Mon 15 Sep to 21:40 on Mon 15 Sep.

    1919-09-14T15:03:36Z → 1919-09-15T12:40:00Z

  2. 02

    Kāla

    Moonrise is at 21:57 on the 14th and 22:47 on the 15th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is not on the 14th and is not on the 15th.

    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 4018 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Baoding, 1919: Sunday 14 September.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Candra Ṣaṣṭhī 1919 falls on Sunday 14 September. Ṣaṣṭhī runs from 00:04 on Mon 15 Sep to 21:40 on Mon 15 Sep, and is current at moonrise on neither day.

ahargana.org/baoding/festivals/1919/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 14 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 14 Sep
compat-drikpanchangComparison profileSun 14 Sep
No institution has a recorded ruling for Baoding.

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 14thCoveredMoonrise 15thCoveredRuled
Los Angeles08:04 → 05:4022:15holds23:10no14 Sep
Chicago10:04 → 07:4021:49holds22:42no14 Sep
Jersey City11:04 → 08:4021:56holds22:49no14 Sep
Port of Spain11:04 → 08:4022:01holds22:59no14 Sep
London16:04 → 13:4021:16holds22:03no14 Sep
Durban17:04 → 14:4022:40holds23:43no14 Sep
Dubai18:45 → 16:2121:14holds22:08no14 Sep
Delhi20:34 → 18:1021:26holds22:19no14 Sep
Kolkata20:34 → 18:1020:50holds21:45no14 Sep
Singapore22:04 → 19:4021:47no22:45no14 Sep
Sydney01:04 → 22:4022:25no23:31no14 Sep
Suva03:04 → 00:4022:04no23:06holds15 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

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