Ruling · Gopāṣṭamī (Goṣṭhāṣṭamī) · 1998

Wednesday 28 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 197 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 Wednesday 28 October

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

Midday of Thursday 29 October

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

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 07:39 on Wed 28 Oct to 07:42 on Thu 29 Oct.

    1998-10-27T23:38:45Z → 1998-10-28T23:42:22Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 28th, 10:59–11:47 on the 29th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.

    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 11825 s

  5. 05

    Ruling

    Gopāṣṭamī, Daqing, 1998: Wednesday 28 October.

    confidence: determinate

Say it like this

In Daqing, Gopāṣṭamī 1998 falls on Wednesday 28 October. Aṣṭamī runs from 07:39 on Wed 28 Oct to 07:42 on Thu 29 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1998/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 28 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 28 Oct
compat-drikpanchangComparison profileWed 28 Oct
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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles15:39 → 15:4211:130 min11:1348 min28 Oct
Chicago17:39 → 17:4211:100 min11:1048 min28 Oct
Jersey City18:39 → 18:4211:160 min11:1648 min28 Oct
Port of Spain19:39 → 19:4211:260 min11:2648 min28 Oct
London23:39 → 23:4211:200 min11:2048 min28 Oct
Durban01:39 → 01:4211:160 min11:1648 min28 Oct
Dubai03:39 → 03:4211:390 min11:3848 min28 Oct
Delhi05:09 → 05:1211:410 min11:4148 min28 Oct
Kolkata05:09 → 05:1210:560 min10:5648 min28 Oct
Singapore07:39 → 07:4212:250 min12:2448 min28 Oct
Sydney10:39 → 10:4212:150 min12:1548 min28 Oct
Suva11:39 → 11:4211:260 min11:2636 min28 Oct
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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