Ruling · Candra Ṣaṣṭhī · 2031

Monday 6 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 289 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 Sunday 5 October

Ṣaṣṭhī does not hold at moonrise. Not taken.

20:50 moonrise
19:3820:0220:2620:5021:1421:3822:02

Absent at moonrise

Moonrise of Monday 6 October

Taken. The only moonrise Ṣaṣṭhī holds at.

21:38 moonrise
20:2620:5021:1421:3822:0222:2622:50

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 01:39 on Mon 6 Oct to 03:24 on Tue 7 Oct.

    2031-10-05T17:38:34Z → 2031-10-06T19:24:23Z

  2. 02

    Kāla

    Moonrise is at 20:50 on the 5th and 21:38 on the 6th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is not on the 5th and is on the 6th.

    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 17344 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Baoding, 2031: Monday 6 October.

    confidence: determinate

Say it like this

In Baoding, Candra Ṣaṣṭhī 2031 falls on Monday 6 October. Ṣaṣṭhī runs from 01:39 on Mon 6 Oct to 03:24 on Tue 7 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/2031/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 6 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 6 Oct
compat-drikpanchangComparison profileMon 6 Oct
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 5thCoveredMoonrise 6thCoveredRuled
Los Angeles10:39 → 12:2422:07holds22:58no5 Oct
Chicago12:39 → 14:2421:41holds22:32no5 Oct
Jersey City13:39 → 15:2421:48holds22:38no5 Oct
Port of Spain13:39 → 15:2421:56holds22:46no5 Oct
London18:39 → 20:2421:05holds21:55no5 Oct
Durban19:39 → 21:2422:41holds23:30no5 Oct
Dubai21:39 → 23:2421:28no22:18holds6 Oct
Delhi23:09 → 00:5421:21no22:10holds6 Oct
Kolkata23:09 → 00:5420:46no21:35holds6 Oct
Singapore01:39 → 03:2422:46no23:36holds6 Oct
Sydney04:39 → 06:2423:31no00:22holds6 Oct
Suva05:39 → 07:2422:08no22:58holds6 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

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