Ruling · Rādhāṣṭamī · 2051

Wednesday 13 September

Determinatein Bucharest, under the Rashtriya Panchang method. Clear of every threshold by 601 minutes.

Decide it for

BucharestDelhiKolkataSingaporeSydneyJersey City

44°26′ N 26°06′ E · Europe/Bucharest · GeoNames 683506

The two middays

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

Midday of Tuesday 12 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:48  13:36 madhyāhna ends
12:0012:2412:4813:1213:3614:0014:24

0 of 48 minutes covered

Midday of Wednesday 13 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:47  13:35 madhyāhna ends
11:5912:2312:4713:1113:3513:5914:23

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 23:36 on Tue 12 Sep to 00:54 on Thu 14 Sep.

    2051-09-12T20:36:19Z → 2051-09-13T21:54:19Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:48–13:36 on the 12th, 12:47–13:35 on the 13th.

    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 12th and 48 of 48 on the 13th.

    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 36044 s

  5. 05

    Ruling

    Rādhāṣṭamī, Bucharest, 2051: Wednesday 13 September.

    confidence: determinate

Say it like this

In Bucharest, Rādhāṣṭamī 2051 falls on Wednesday 13 September. Aṣṭamī runs from 23:36 on Tue 12 Sep to 00:54 on Thu 14 Sep and covers all of madhyāhna that midday.

ahargana.org/bucharest/festivals/2051/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 13 Sep
compat-drikpanchangComparison profileWed 13 Sep
No institution has a recorded ruling for Bucharest.

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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles13:36 → 14:5412:250 min12:2548 min13 Sep
Chicago15:36 → 16:5412:230 min12:2248 min13 Sep
Jersey City16:36 → 17:5412:280 min12:2848 min13 Sep
Port of Spain16:36 → 17:5411:380 min11:3848 min13 Sep
London21:36 → 22:5412:320 min12:3248 min13 Sep
Durban22:36 → 23:5411:290 min11:2848 min13 Sep
Dubai00:36 → 01:5411:510 min11:5148 min13 Sep
Delhi02:06 → 03:2411:530 min11:5348 min13 Sep
Kolkata02:06 → 03:2411:090 min11:0848 min13 Sep
Singapore04:36 → 05:5412:370 min12:3748 min13 Sep
Sydney06:36 → 07:5411:280 min11:2848 min13 Sep
Suva08:36 → 09:5411:390 min11:3948 min13 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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