Ruling · Gopāṣṭamī · 2001

Friday 23 November

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 82 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 Thursday 22 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 Friday 23 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 13:36 on Thu 22 Nov to 16:07 on Fri 23 Nov.

    2001-11-22T10:06:06Z → 2001-11-23T12:36:51Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 22nd, 11:27–12:15 on the 23rd.

    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 22nd and 48 of 48 on the 23rd.

    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 4908 s

  5. 05

    Ruling

    Gopāṣṭamī, Tehran, 2001: Friday 23 November.

    confidence: determinate

Say it like this

In Tehran, Gopāṣṭamī 2001 falls on Friday 23 November. Aṣṭamī runs from 13:36 on Thu 22 Nov to 16:07 on Fri 23 Nov and covers all of madhyāhna that midday.

ahargana.org/tehran/festivals/2001/gopashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 23 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 23 Nov
compat-drikpanchangComparison profileFri 23 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 22ndCoveredMadhyāhna 23rdCoveredRuled
Los Angeles02:06 → 04:3711:1548 min11:150 min22 Nov
Chicago04:06 → 06:3711:1348 min11:130 min22 Nov
Jersey City05:06 → 07:3711:1848 min11:190 min22 Nov
Port of Spain06:06 → 08:3711:2848 min11:290 min22 Nov
London10:06 → 12:3711:2248 min11:2348 min22 Nov
Durban12:06 → 14:3711:180 min11:1848 min23 Nov
Dubai14:06 → 16:3711:410 min11:4148 min23 Nov
Delhi15:36 → 18:0711:430 min11:4348 min23 Nov
Kolkata15:36 → 18:0710:590 min10:5948 min23 Nov
Singapore18:06 → 20:3712:270 min12:2748 min23 Nov
Sydney21:06 → 23:3712:170 min12:1848 min23 Nov
Suva22:06 → 00:3711:280 min11:2948 min23 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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