Ruling · Rādhāṣṭamī · 1998

Saturday 29 August

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

Decide it for

12°03′ S 77°02′ W · America/Lima · GeoNames 3936456

The two middays

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

Midday of Saturday 29 August

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

madhyāhna begins 11:45  12:33 madhyāhna ends
Aṣṭamī begins 11:09:33
10:5711:2111:4512:0912:3312:5713:21

48 of 48 minutes covered

Midday of Sunday 30 August

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:45  12:33 madhyāhna ends
Aṣṭamī ends 12:55:37
10:5711:2111:4512:0912:3312:5713:21

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 11:10 on Sat 29 Aug to 12:56 on Sun 30 Aug.

    1998-08-29T16:09:33Z → 1998-08-30T17:55:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 29th, 11:45–12:33 on the 30th.

    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 29th and 48 of 48 on the 30th.

    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 1370 s

  5. 05

    Ruling

    Rādhāṣṭamī, Lima, 1998: Saturday 29 August.

    confidence: boundary (tie-break-unstated)

Say it like this

In Lima, Rādhāṣṭamī 1998 falls on Saturday 29 August. Aṣṭamī runs from 11:10 on Sat 29 Aug to 12:56 on Sun 30 Aug and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/lima/festivals/1998/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 29 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 29 Aug
compat-drikpanchangComparison profileSat 29 Aug
No institution has a recorded ruling for Lima.

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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles09:10 → 10:5612:3048 min12:290 min29 Aug
Chicago11:10 → 12:5612:2748 min12:2729 min29 Aug
Jersey City12:10 → 13:5612:3348 min12:3348 min29 Aug
Port of Spain12:10 → 13:5611:4321 min11:4348 min30 Aug
London17:10 → 18:5612:370 min12:3748 min30 Aug
Durban18:10 → 19:5611:330 min11:3348 min30 Aug
Dubai20:10 → 21:5611:560 min11:5548 min30 Aug
Delhi21:40 → 23:2611:580 min11:5848 min30 Aug
Kolkata21:40 → 23:2611:130 min11:1348 min30 Aug
Singapore00:10 → 01:5612:420 min12:4148 min30 Aug
Sydney02:10 → 03:5611:330 min11:3248 min30 Aug
Suva04:10 → 05:5611:440 min11:4348 min30 Aug
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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