Ruling · Gopāṣṭamī · 1918

Tuesday 12 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 21 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

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 11 November

Aṣṭamī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Tuesday 12 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:00  11:48 madhyāhna ends
Aṣṭamī ends 12:08:25
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 13:13 on Mon 11 Nov to 12:08 on Tue 12 Nov.

    1918-11-11T05:13:15Z → 1918-11-12T04:08:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 11th, 11:00–11:48 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 1234 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 1918: Tuesday 12 November.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 1918 falls on Tuesday 12 November. Aṣṭamī runs from 13:13 on Mon 11 Nov to 12:08 on Tue 12 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1918/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 12 Nov
compat-drikpanchangComparison profileTue 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles21:13 → 20:0811:1348 min11:130 min11 Nov
Chicago23:13 → 22:0811:1048 min11:110 min11 Nov
Jersey City00:13 → 23:0811:1648 min11:160 min11 Nov
Port of Spain01:13 → 00:0811:2648 min11:260 min11 Nov
London05:13 → 04:0811:2048 min11:200 min11 Nov
Durban07:13 → 06:0811:1648 min11:160 min11 Nov
Dubai08:54 → 07:4911:2048 min11:200 min11 Nov
Delhi10:43 → 09:3811:4148 min11:410 min11 Nov
Kolkata10:43 → 09:3810:5648 min10:570 min11 Nov
Singapore12:13 → 11:0811:250 min11:250 min12 Nov
Sydney15:13 → 14:0811:150 min11:1648 min12 Nov
Suva17:13 → 16:0811:260 min11:2748 min12 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

About Ahargaṇa