Ruling · Candra Ṣaṣṭhī · 2018

Sunday 30 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 643 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 Saturday 29 September

Ṣaṣṭhī does not hold at moonrise. Not taken.

20:49 moonrise
19:3720:0120:2520:4921:1321:3722:01

Absent at moonrise

Moonrise of Sunday 30 September

Taken. The only moonrise Ṣaṣṭhī holds at.

21:32 moonrise
20:2020:4421:0821:3221:5622:2022:44

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 09:34 on Sun 30 Sep to 08:15 on Mon 1 Oct.

    2018-09-30T01:33:37Z → 2018-10-01T00:15:05Z

  2. 02

    Kāla

    Moonrise is at 20:49 on the 29th and 21:32 on the 30th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Ṣaṣṭhī must be current at moonrise. It is not on the 29th and is on the 30th.

    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 38591 s

  5. 05

    Ruling

    Candra Ṣaṣṭhī, Baoding, 2018: Sunday 30 September.

    confidence: determinate

Say it like this

In Baoding, Candra Ṣaṣṭhī 2018 falls on Sunday 30 September. Ṣaṣṭhī runs from 09:34 on Sun 30 Sep to 08:15 on Mon 1 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/2018/chandra-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 30 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 30 Sep
compat-drikpanchangComparison profileSun 30 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 30thCoveredMoonrise 1stCoveredRuled
Los Angeles18:34 → 17:1522:49no23:43no29 Sep
Chicago20:34 → 19:1522:23no23:15no29 Sep
Jersey City21:34 → 20:1522:30no23:22no29 Sep
Port of Spain21:34 → 20:1522:36no23:32no29 Sep
London02:34 → 01:1521:50holds22:37no30 Sep
Durban03:34 → 02:1523:16holds00:17no30 Sep
Dubai05:34 → 04:1522:08holds23:01no30 Sep
Delhi07:04 → 05:4522:01holds22:53no30 Sep
Kolkata07:04 → 05:4521:25holds22:18no30 Sep
Singapore09:34 → 08:1523:23holds00:19no30 Sep
Sydney11:34 → 10:1523:02holds00:05no30 Sep
Suva13:34 → 12:1522:41holds23:40no30 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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