Ruling · Candra Ṣaṣṭhī · 1997

Sunday 21 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 607 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 21 September

Taken. The only moonrise Ṣaṣṭhī holds at.

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

Holds at moonrise

Moonrise of Monday 22 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

22:25 moonrise
21:1321:3722:0122:2522:4923:1323:37

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 11:31 on Sun 21 Sep to 10:09 on Mon 22 Sep.

    1997-09-21T03:30:43Z → 1997-09-22T02:08:58Z

  2. 02

    Kāla

    Moonrise is at 21:38 on the 21st and 22:25 on the 22nd.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is on the 21st and is not on the 22nd.

    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 36411 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Baoding, 1997: Sunday 21 September.

    confidence: determinate

Say it like this

In Baoding, Candra Ṣaṣṭhī 1997 falls on Sunday 21 September. Ṣaṣṭhī runs from 11:31 on Sun 21 Sep to 10:09 on Mon 22 Sep and is current at moonrise that day.

ahargana.org/baoding/festivals/1997/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 21 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 21 Sep
compat-drikpanchangComparison profileSun 21 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 21stCoveredMoonrise 22ndCoveredRuled
Los Angeles20:31 → 19:0922:52no23:42no20 Sep
Chicago22:31 → 21:0922:30no23:18no20 Sep
Jersey City23:31 → 22:0922:36no23:25no20 Sep
Port of Spain23:31 → 22:0922:33no23:25no20 Sep
London04:31 → 03:0922:02holds22:47no21 Sep
Durban05:31 → 04:0923:04holds00:01no21 Sep
Dubai07:31 → 06:0922:09holds23:00no21 Sep
Delhi09:01 → 07:3922:03holds22:53no21 Sep
Kolkata09:01 → 07:3921:26holds22:17no21 Sep
Singapore11:31 → 10:0923:19holds00:12no21 Sep
Sydney13:31 → 12:0922:50holds23:49no21 Sep
Suva15:31 → 14:0922:33holds23:29no21 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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