Ruling · Rādhāṣṭamī · 2085

Tuesday 28 August

Determinatein Daegu, under the Rashtriya Panchang method. Clear of every threshold by 386 minutes.

Decide it for

DaeguDelhiKolkataSingaporeSydneyJersey City

35°52′ N 128°36′ E · Asia/Seoul · GeoNames 1835329

The two middays

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

Midday of Tuesday 28 August

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:03  12:51 madhyāhna ends
11:1511:3912:0312:2712:5113:1513:39

48 of 48 minutes covered

Midday of Wednesday 29 August

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

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 05:37 on Tue 28 Aug to 05:16 on Wed 29 Aug.

    2085-08-27T20:36:38Z → 2085-08-28T20:16:22Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 28th, 12:02–12:50 on the 29th.

    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 28th and 0 of 48 on the 29th.

    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 23169 s

  5. 05

    Ruling

    Rādhāṣṭamī, Daegu, 2085: Tuesday 28 August.

    confidence: determinate

Say it like this

In Daegu, Rādhāṣṭamī 2085 falls on Tuesday 28 August. Aṣṭamī runs from 05:37 on Tue 28 Aug to 05:16 on Wed 29 Aug and covers all of madhyāhna that midday.

ahargana.org/daegu/festivals/2085/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 28 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 28 Aug
compat-drikpanchangComparison profileTue 28 Aug
No institution has a recorded ruling for Daegu.

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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles13:37 → 13:1612:300 min12:3046 min28 Aug
Chicago15:37 → 15:1612:280 min12:2848 min28 Aug
Jersey City16:37 → 16:1612:340 min12:3348 min28 Aug
Port of Spain16:37 → 16:1611:440 min11:4348 min28 Aug
London21:37 → 21:1612:380 min12:3748 min28 Aug
Durban22:37 → 22:1611:340 min11:3348 min28 Aug
Dubai00:37 → 00:1611:560 min11:5648 min28 Aug
Delhi02:07 → 01:4611:590 min11:5848 min28 Aug
Kolkata02:07 → 01:4611:140 min11:1448 min28 Aug
Singapore04:37 → 04:1612:420 min12:4248 min28 Aug
Sydney06:37 → 06:1611:330 min11:3348 min28 Aug
Suva08:37 → 08:1611:440 min11:4448 min28 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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