Ruling · Rādhāṣṭamī · 2014

Tuesday 2 September

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 668 minutes.

Decide it for

LuandaDelhiKolkataSingaporeSydneyJersey City

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two middays

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

Midday of Monday 1 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

0 of 48 minutes covered

Midday of Tuesday 2 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

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 00:33 on Tue 2 Sep to 23:38 on Tue 2 Sep.

    2014-09-01T23:33:03Z → 2014-09-02T22:38:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 1st, 11:43–12:31 on the 2nd.

    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 1st and 48 of 48 on the 2nd.

    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 40059 s

  5. 05

    Ruling

    Rādhāṣṭamī, Luanda, 2014: Tuesday 2 September.

    confidence: determinate

Say it like this

In Luanda, Rādhāṣṭamī 2014 falls on Tuesday 2 September. Aṣṭamī runs from 00:33 on Tue 2 Sep to 23:38 on Tue 2 Sep and covers all of madhyāhna that midday.

ahargana.org/luanda/festivals/2014/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 2 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 2 Sep
compat-drikpanchangComparison profileTue 2 Sep
No institution has a recorded ruling for Luanda.

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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles16:33 → 15:3812:290 min12:2848 min2 Sep
Chicago18:33 → 17:3812:260 min12:2648 min2 Sep
Jersey City19:33 → 18:3812:320 min12:3248 min2 Sep
Port of Spain19:33 → 18:3811:420 min11:4248 min2 Sep
London00:33 → 23:3812:360 min12:3648 min2 Sep
Durban01:33 → 00:3811:320 min11:3248 min2 Sep
Dubai03:33 → 02:3811:550 min11:5448 min2 Sep
Delhi05:03 → 04:0811:570 min11:5748 min2 Sep
Kolkata05:03 → 04:0811:120 min11:1248 min2 Sep
Singapore07:33 → 06:3812:410 min12:4048 min2 Sep
Sydney09:33 → 08:3811:320 min11:3148 min2 Sep
Suva11:33 → 10:3811:430 min11:4248 min2 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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