Ruling · Rādhāṣṭamī · 1957

Saturday 31 August

Boundaryin Queens, under the Rashtriya Panchang method. Both middays qualify and the rule does not say which to take. Say “contested”.

Decide it for

40°41′ N 73°50′ W · America/New_York · GeoNames 5133273

The two middays

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

Midday of Saturday 31 August

Taken. Both middays qualify; the rule is silent, and this one is covered longer.

madhyāhna begins 12:31  13:19 madhyāhna ends
Aṣṭamī begins 12:43:47
11:4312:0712:3112:5513:1913:4314:07

35 of 48 minutes covered, the last 35

Midday of Sunday 1 September

Qualifies with 5 of 48 minutes. Not taken.

madhyāhna begins 12:31  13:19 madhyāhna ends
Aṣṭamī ends 12:36:09
11:4312:0712:3112:5513:1913:4314:07

5 of 48 minutes covered, the first 5

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 12:44 on Sat 31 Aug to 12:36 on Sun 1 Sep.

    1957-08-31T16:43:47Z → 1957-09-01T16:36:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 31st, 12:31–13:19 on the 1st.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 35 of 48 minutes on the 31st and 5 of 48 on the 1st.

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

  4. 04

    Tie-break

    Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 314 s

  5. 05

    Ruling

    Rādhāṣṭamī, Queens, 1957: Saturday 31 August.

    confidence: boundary (tie-break-unstated)

Say it like this

In Queens, Rādhāṣṭamī 1957 falls on Saturday 31 August. Aṣṭamī runs from 12:44 on Sat 31 Aug to 12:36 on Sun 1 Sep and covers 35 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 5 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/queens/festivals/1957/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 31 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 31 Aug
compat-drikpanchangComparison profileSat 31 Aug
No institution has a recorded ruling for Queens.

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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles09:44 → 09:3612:2948 min12:290 min31 Aug
Chicago11:44 → 11:3612:2648 min12:260 min31 Aug
Jersey City12:44 → 12:3612:3236 min12:324 min31 Aug
Port of Spain12:44 → 12:3611:420 min11:4248 min1 Sep
London17:44 → 17:3612:360 min12:3648 min1 Sep
Durban18:44 → 18:3611:320 min11:3248 min1 Sep
Dubai20:44 → 20:3611:550 min11:5548 min1 Sep
Delhi22:14 → 22:0611:570 min11:5748 min1 Sep
Kolkata22:14 → 22:0611:130 min11:1248 min1 Sep
Singapore00:14 → 00:0612:110 min12:1148 min1 Sep
Sydney02:44 → 02:3611:320 min11:3248 min1 Sep
Suva04:44 → 04:3611:430 min11:4348 min1 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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