Ruling · Gopāṣṭamī · 2030

Saturday 2 November

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 432 minutes.

Decide it for

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 2 November

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:24  12:12 madhyāhna ends
10:3611:0011:2411:4812:1212:3613:00

48 of 48 minutes covered

Midday of Sunday 3 November

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:24  12:12 madhyāhna ends
10:3611:0011:2411:4812:1212:3613:00

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 04:12 on Sat 2 Nov to 02:48 on Sun 3 Nov.

    2030-11-02T00:41:33Z → 2030-11-02T23:18:09Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 2nd, 11:24–12:12 on the 3rd.

    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 2nd and 0 of 48 on the 3rd.

    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 25926 s

  5. 05

    Ruling

    Gopāṣṭamī, Tehran, 2030: Saturday 2 November.

    confidence: determinate

Say it like this

In Tehran, Gopāṣṭamī 2030 falls on Saturday 2 November. Aṣṭamī runs from 04:12 on Sat 2 Nov to 02:48 on Sun 3 Nov and covers all of madhyāhna that midday.

ahargana.org/tehran/festivals/2030/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 2 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 2 Nov
compat-drikpanchangComparison profileSat 2 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 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles17:42 → 16:1812:1248 min11:120 min2 Nov
Chicago19:42 → 18:1812:1048 min11:100 min2 Nov
Jersey City20:42 → 19:1812:1648 min11:160 min2 Nov
Port of Spain20:42 → 19:1811:2648 min11:260 min2 Nov
London00:42 → 23:1811:2048 min11:200 min2 Nov
Durban02:42 → 01:1811:1648 min11:160 min2 Nov
Dubai04:42 → 03:1811:3848 min11:380 min2 Nov
Delhi06:12 → 04:4811:4048 min11:400 min2 Nov
Kolkata06:12 → 04:4810:5648 min10:560 min2 Nov
Singapore08:42 → 07:1812:2448 min12:240 min2 Nov
Sydney11:42 → 10:1812:1548 min12:150 min2 Nov
Suva12:42 → 11:1811:260 min11:260 min3 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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