Ruling · Gopāṣṭamī · 1912

Sunday 17 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 337 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 16 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 17 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 17:25 on Sat 16 Nov to 20:00 on Sun 17 Nov.

    1912-11-16T09:25:01Z → 1912-11-17T12:00:00Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:01–11:49 on the 16th, 11:01–11:49 on the 17th.

    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 16th and 48 of 48 on the 17th.

    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 20190 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 1912: Sunday 17 November.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 1912 falls on Sunday 17 November. Aṣṭamī runs from 17:25 on Sat 16 Nov to 20:00 on Sun 17 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1912/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 17 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 17 Nov
compat-drikpanchangComparison profileSun 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles01:25 → 04:0011:1448 min11:140 min16 Nov
Chicago03:25 → 06:0011:1148 min11:110 min16 Nov
Jersey City04:25 → 07:0011:1748 min11:170 min16 Nov
Port of Spain05:25 → 08:0011:2748 min11:270 min16 Nov
London09:25 → 12:0011:2148 min11:2139 min16 Nov
Durban11:25 → 14:0011:1740 min11:1748 min17 Nov
Dubai13:06 → 15:4111:200 min11:2148 min17 Nov
Delhi14:55 → 17:3011:420 min11:4248 min17 Nov
Kolkata14:55 → 17:3010:570 min10:5748 min17 Nov
Singapore16:25 → 19:0011:250 min11:2648 min17 Nov
Sydney19:25 → 22:0011:160 min11:1648 min17 Nov
Suva21:20 → 23:5511:220 min11:2248 min17 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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