Ruling · Gopāṣṭamī · 1997

Friday 7 November

Boundaryin Luanda, under the Rashtriya Panchang method. A threshold is only 1 min 01 s away. Say “contested”.

Decide it for

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Friday 7 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:27  12:15 madhyāhna ends
Aṣṭamī begins 11:27:49
10:3911:0311:2711:5112:1512:3913:03

47 of 48 minutes covered, the last 47

Midday of Saturday 8 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:27  12:15 madhyāhna ends
10:3911:0311:2711:5112:1512:3913:03

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 11:28 on Fri 7 Nov to 09:53 on Sat 8 Nov.

    1997-11-07T10:27:49Z → 1997-11-08T08:52:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 7th, 11:27–12:15 on the 8th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 47 of 48 minutes on the 7th and 0 of 48 on the 8th.

    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 61 s < 300 s

  5. 05

    Ruling

    Gopāṣṭamī, Luanda, 1997: Friday 7 November.

    confidence: boundary (margin)

Say it like this

In Luanda, Gopāṣṭamī 1997 falls on Friday 7 November. Aṣṭamī runs from 11:28 on Fri 7 Nov to 09:53 on Sat 8 Nov and covers 47 of 48 minutes of madhyāhna that midday. It is 1 min 01 s from a threshold: treat the date as contested.

ahargana.org/luanda/festivals/1997/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 7 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 7 Nov
compat-drikpanchangComparison profileFri 7 Nov
No institution has a recorded ruling for Luanda.

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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles02:28 → 00:5311:1248 min11:130 min7 Nov
Chicago04:28 → 02:5311:1048 min11:100 min7 Nov
Jersey City05:28 → 03:5311:1648 min11:160 min7 Nov
Port of Spain06:28 → 04:5311:2648 min11:260 min7 Nov
London10:28 → 08:5311:2048 min11:200 min7 Nov
Durban12:28 → 10:5311:160 min11:160 min8 Nov
Dubai14:28 → 12:5311:380 min11:3848 min8 Nov
Delhi15:58 → 14:2311:410 min11:4148 min8 Nov
Kolkata15:58 → 14:2310:560 min10:5648 min8 Nov
Singapore18:28 → 16:5312:240 min12:2448 min8 Nov
Sydney21:28 → 19:5312:150 min12:1548 min8 Nov
Suva22:28 → 20:5311:260 min11:2648 min8 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