Ruling · Rādhāṣṭamī · 2093

Saturday 29 August

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 15 minutes.

Decide it for

ChattogramDelhiKolkataSingaporeSydneyJersey City

22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733

The two middays

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

Midday of Saturday 29 August

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:30  12:18 madhyāhna ends
Aṣṭamī begins 11:44:14
10:4211:0611:3011:5412:1812:4213:06

33 of 48 minutes covered, the last 33

Midday of Sunday 30 August

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:29  12:17 madhyāhna ends
10:4111:0511:2911:5312:1712:4113:05

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 11:44 on Sat 29 Aug to 10:09 on Sun 30 Aug.

    2093-08-29T05:44:15Z → 2093-08-30T04:09:14Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 29th, 11:29–12:17 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 33 of 48 minutes on the 29th and 0 of 48 on the 30th.

    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 872 s

  5. 05

    Ruling

    Rādhāṣṭamī, Chattogram, 2093: Saturday 29 August.

    confidence: determinate

Say it like this

In Chattogram, Rādhāṣṭamī 2093 falls on Saturday 29 August. Aṣṭamī runs from 11:44 on Sat 29 Aug to 10:09 on Sun 30 Aug and covers 33 of 48 minutes of madhyāhna that midday.

ahargana.org/chattogram/festivals/2093/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 Chattogram.

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 Angeles22:44 → 21:0912:3048 min12:290 min29 Aug
Chicago00:44 → 23:0912:2748 min12:270 min29 Aug
Jersey City01:44 → 00:0912:3348 min12:330 min29 Aug
Port of Spain01:44 → 00:0911:4348 min11:430 min29 Aug
London06:44 → 05:0912:3748 min12:370 min29 Aug
Durban07:44 → 06:0911:3348 min11:330 min29 Aug
Dubai09:44 → 08:0911:5648 min11:550 min29 Aug
Delhi11:14 → 09:3911:5848 min11:580 min29 Aug
Kolkata11:14 → 09:3911:1447 min11:130 min29 Aug
Singapore13:44 → 12:0912:420 min12:410 min30 Aug
Sydney15:44 → 14:0911:330 min11:3248 min30 Aug
Suva17:44 → 16:0911:440 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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