Ruling · Candra Ṣaṣṭhī · 2040

Tuesday 25 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 16 minutes.

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 Tuesday 25 September

Taken. Both moonrises qualify; the rule takes the first.

20:51 moonrise
Ṣaṣṭhī begins 20:32:54
19:3920:0320:2720:5121:1521:3922:03

Holds at moonrise

Moonrise of Wednesday 26 September

Ṣaṣṭhī holds at moonrise here too. Not taken.

21:29 moonrise
Ṣaṣṭhī ends 21:45:21
20:1720:4121:0521:2921:5322:1722:41

Holds 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 20:33 on Tue 25 Sep to 21:45 on Wed 26 Sep.

    2040-09-25T12:32:54Z → 2040-09-26T13:45:21Z

  2. 02

    Kāla

    Moonrise is at 20:51 on the 25th and 21:29 on the 26th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 25th and is on the 26th.

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

  4. 04

    Tie-break

    Both moonrises qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 987 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Baoding, 2040: Tuesday 25 September.

    confidence: determinate

Say it like this

In Baoding, Candra Ṣaṣṭhī 2040 falls on Tuesday 25 September. Ṣaṣṭhī runs from 20:33 on Tue 25 Sep to 21:45 on Wed 26 Sep and is current at moonrise that day.

ahargana.org/baoding/festivals/2040/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 25 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 25 Sep
compat-drikpanchangComparison profileTue 25 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 25thCoveredMoonrise 26thCoveredRuled
Los Angeles05:33 → 06:4522:04holds22:47no25 Sep
Chicago07:33 → 08:4521:35holds22:14no25 Sep
Jersey City08:33 → 09:4521:43holds22:23no25 Sep
Port of Spain08:33 → 09:4522:00holds22:49no25 Sep
London13:33 → 14:4520:57holds21:28no25 Sep
Durban14:33 → 15:4522:54holds23:52no25 Sep
Dubai16:33 → 17:4521:31holds22:15no25 Sep
Delhi18:03 → 19:1521:23holds22:06no25 Sep
Kolkata18:03 → 19:1520:50holds21:34no25 Sep
Singapore20:33 → 21:4522:53holds23:43no25 Sep
Sydney22:33 → 23:4522:43holds23:43holds25 Sep
Suva00:33 → 01:4522:16no23:12holds26 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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