Ruling · Rādhāṣṭamī · 2076

Sunday 6 September

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 601 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 Sunday 6 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

48 of 48 minutes covered

Midday of Monday 7 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

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 01:37 on Sun 6 Sep to 00:48 on Mon 7 Sep.

    2076-09-05T22:07:22Z → 2076-09-06T21:17:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 6th, 11:38–12:26 on the 7th.

    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 6th and 0 of 48 on the 7th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 36060 s

  5. 05

    Ruling

    Rādhāṣṭamī, Tehran, 2076: Sunday 6 September.

    confidence: determinate

Say it like this

In Tehran, Rādhāṣṭamī 2076 falls on Sunday 6 September. Aṣṭamī runs from 01:37 on Sun 6 Sep to 00:48 on Mon 7 Sep and covers all of madhyāhna that midday.

ahargana.org/tehran/festivals/2076/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 6 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 6 Sep
compat-drikpanchangComparison profileSun 6 Sep
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/radhashtami · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Aṣṭamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles15:07 → 14:1812:270 min12:2748 min6 Sep
Chicago17:07 → 16:1812:250 min12:2448 min6 Sep
Jersey City18:07 → 17:1812:310 min12:3048 min6 Sep
Port of Spain18:07 → 17:1811:410 min11:4048 min6 Sep
London23:07 → 22:1812:350 min12:3448 min6 Sep
Durban00:07 → 23:1811:310 min11:3048 min6 Sep
Dubai02:07 → 01:1811:530 min11:5348 min6 Sep
Delhi03:37 → 02:4811:560 min11:5548 min6 Sep
Kolkata03:37 → 02:4811:110 min11:1148 min6 Sep
Singapore06:07 → 05:1812:390 min12:3948 min6 Sep
Sydney08:07 → 07:1811:300 min11:3048 min6 Sep
Suva10:07 → 09:1811:410 min11:4148 min6 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
radhashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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