Ruling · Gopāṣṭamī · 1963

Sunday 24 November

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 656 minutes.

Decide it for

TehranDelhiKolkataSingaporeSydneyJersey City

35°42′ N 51°25′ E · Asia/Tehran · GeoNames 112931

The two middays

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

Midday of Saturday 23 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:26  12:14 madhyāhna ends
10:3811:0211:2611:5012:1412:3813:02

0 of 48 minutes covered

Midday of Sunday 24 November

Taken. The only midday Aṣṭamī reaches.

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

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 23:29 on Sat 23 Nov to 23:10 on Sun 24 Nov.

    1963-11-23T19:59:04Z → 1963-11-24T19:40:22Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 23rd, 11:27–12:15 on the 24th.

    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 23rd and 48 of 48 on the 24th.

    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 39341 s

  5. 05

    Ruling

    Gopāṣṭamī, Tehran, 1963: Sunday 24 November.

    confidence: determinate

Say it like this

In Tehran, Gopāṣṭamī 1963 falls on Sunday 24 November. Aṣṭamī runs from 23:29 on Sat 23 Nov to 23:10 on Sun 24 Nov and covers all of madhyāhna that midday.

ahargana.org/tehran/festivals/1963/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 24 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 24 Nov
compat-drikpanchangComparison profileSun 24 Nov
No institution has a recorded ruling for Tehran.

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 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles11:59 → 11:4011:154 min11:1525 min24 Nov
Chicago13:59 → 13:4011:130 min11:1348 min24 Nov
Jersey City14:59 → 14:4011:180 min11:1948 min24 Nov
Port of Spain15:59 → 15:4011:280 min11:2948 min24 Nov
London19:59 → 19:4011:230 min11:2348 min24 Nov
Durban21:59 → 21:4011:180 min11:1948 min24 Nov
Dubai23:59 → 23:4011:410 min11:4148 min24 Nov
Delhi01:29 → 01:1011:430 min11:4348 min24 Nov
Kolkata01:29 → 01:1010:590 min10:5948 min24 Nov
Singapore03:29 → 03:1011:570 min11:5748 min24 Nov
Sydney05:59 → 05:4011:180 min11:1848 min24 Nov
Suva07:59 → 07:4011:290 min11:2948 min24 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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