Ruling · Gopāṣṭamī · 1917

Thursday 22 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 336 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 Wednesday 21 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:02  11:50 madhyāhna ends
10:1410:3811:0211:2611:5012:1412:38

0 of 48 minutes covered

Midday of Thursday 22 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:02  11:50 madhyāhna ends
10:1410:3811:0211:2611:5012:1412:38

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 19:29 on Wed 21 Nov to 17:25 on Thu 22 Nov.

    1917-11-21T11:28:49Z → 1917-11-22T09:25:19Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:02–11:50 on the 21st, 11:02–11:50 on the 22nd.

    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 21st and 48 of 48 on the 22nd.

    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 20130 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 1917: Thursday 22 November.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 1917 falls on Thursday 22 November. Aṣṭamī runs from 19:29 on Wed 21 Nov to 17:25 on Thu 22 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1917/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 22 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 22 Nov
compat-drikpanchangComparison profileThu 22 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles03:29 → 01:2511:1548 min11:150 min21 Nov
Chicago05:29 → 03:2511:1248 min11:130 min21 Nov
Jersey City06:29 → 04:2511:1848 min11:180 min21 Nov
Port of Spain07:29 → 05:2511:2848 min11:280 min21 Nov
London11:29 → 09:2511:2241 min11:220 min21 Nov
Durban13:29 → 11:2511:180 min11:187 min22 Nov
Dubai15:10 → 13:0611:210 min11:2248 min22 Nov
Delhi16:59 → 14:5511:430 min11:4348 min22 Nov
Kolkata16:59 → 14:5510:580 min10:5948 min22 Nov
Singapore18:29 → 16:2511:260 min11:2748 min22 Nov
Sydney21:29 → 19:2511:170 min11:1748 min22 Nov
Suva23:29 → 21:2511:280 min11:2848 min22 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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