Ruling · Gopāṣṭamī · 1965

Monday 1 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 318 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 1 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 10:59  11:47 madhyāhna ends
10:1110:3510:5911:2311:4712:1112:35

48 of 48 minutes covered

Midday of Tuesday 2 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 10:59  11:47 madhyāhna ends
10:1110:3510:5911:2311:4712:1112:35

0 of 48 minutes covered

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 03:11 on Mon 1 Nov to 05:41 on Tue 2 Nov.

    1965-10-31T19:10:41Z → 1965-11-01T21:41:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 1st, 10:59–11:47 on the 2nd.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 19083 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 1965: Monday 1 November.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 1965 falls on Monday 1 November. Aṣṭamī runs from 03:11 on Mon 1 Nov to 05:41 on Tue 2 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1965/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 1 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 1 Nov
compat-drikpanchangComparison profileMon 1 Nov
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/gopashtami · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Aṣṭamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 8 Gopastami, Gosthastami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles11:11 → 13:4111:1248 min11:1248 min31 Oct
Chicago13:11 → 15:4111:100 min11:1048 min1 Nov
Jersey City14:11 → 16:4111:160 min11:1648 min1 Nov
Port of Spain15:11 → 17:4111:260 min11:2648 min1 Nov
London19:11 → 21:4111:200 min11:2048 min1 Nov
Durban21:11 → 23:4111:160 min11:1648 min1 Nov
Dubai23:11 → 01:4111:380 min11:3848 min1 Nov
Delhi00:41 → 03:1111:410 min11:4148 min1 Nov
Kolkata00:41 → 03:1110:560 min10:5648 min1 Nov
Singapore02:41 → 05:1111:540 min11:5448 min1 Nov
Sydney05:11 → 07:4111:150 min11:1548 min1 Nov
Suva07:11 → 09:4111:260 min11:2648 min1 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
gopashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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