Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 2091

Sunday 18 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 457 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 Saturday 17 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:01  11:49 madhyāhna ends
10:1310:3711:0111:2511:4912:1312:37

0 of 48 minutes covered

Midday of Sunday 18 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:01  11:49 madhyāhna ends
10:1310:3711:0111:2511:4912:1312:37

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 19:26 on Sat 17 Nov to 20:07 on Sun 18 Nov.

    2091-11-17T11:25:41Z → 2091-11-18T12:06:36Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:01–11:49 on the 17th, 11:01–11:49 on the 18th.

    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 17th and 48 of 48 on the 18th.

    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 27406 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 2091: Sunday 18 November.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 2091 falls on Sunday 18 November. Aṣṭamī runs from 19:26 on Sat 17 Nov to 20:07 on Sun 18 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2091/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 18 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 18 Nov
compat-drikpanchangComparison profileSun 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles03:26 → 04:0711:1448 min11:140 min17 Nov
Chicago05:26 → 06:0711:1248 min11:120 min17 Nov
Jersey City06:26 → 07:0711:1748 min11:180 min17 Nov
Port of Spain07:26 → 08:0711:2748 min11:270 min17 Nov
London11:26 → 12:0711:2144 min11:2245 min18 Nov
Durban13:26 → 14:0711:170 min11:1748 min18 Nov
Dubai15:26 → 16:0711:400 min11:4048 min18 Nov
Delhi16:56 → 17:3711:420 min11:4248 min18 Nov
Kolkata16:56 → 17:3710:580 min10:5848 min18 Nov
Singapore19:26 → 20:0712:260 min12:2648 min18 Nov
Sydney22:26 → 23:0712:170 min12:1748 min18 Nov
Suva23:26 → 00:0711:280 min11:2848 min18 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