Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 1986

Sunday 9 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 281 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 Saturday 8 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

Midday of Sunday 9 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:00  11:48 madhyāhna ends
10:1210:3611:0011:2411:4812:1212:36

48 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 18:00 on Sat 8 Nov to 16:29 on Sun 9 Nov.

    1986-11-08T10:00:19Z → 1986-11-09T08:29:01Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 8th, 11:00–11:48 on the 9th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.

    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 16889 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 1986: Sunday 9 November.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 1986 falls on Sunday 9 November. Aṣṭamī runs from 18:00 on Sat 8 Nov to 16:29 on Sun 9 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1986/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 9 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 9 Nov
compat-drikpanchangComparison profileSun 9 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles02:00 → 00:2911:1348 min11:130 min8 Nov
Chicago04:00 → 02:2911:1048 min11:100 min8 Nov
Jersey City05:00 → 03:2911:1648 min11:160 min8 Nov
Port of Spain06:00 → 04:2911:2648 min11:260 min8 Nov
London10:00 → 08:2911:2048 min11:200 min8 Nov
Durban12:00 → 10:2911:164 min11:160 min8 Nov
Dubai14:00 → 12:2911:380 min11:3848 min9 Nov
Delhi15:30 → 13:5911:410 min11:4148 min9 Nov
Kolkata15:30 → 13:5910:560 min10:5648 min9 Nov
Singapore18:00 → 16:2912:240 min12:2448 min9 Nov
Sydney21:00 → 19:2912:150 min12:1548 min9 Nov
Suva22:00 → 20:2911:260 min11:2648 min9 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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