Ruling · Rādhāṣṭamī · 2096

Tuesday 25 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 75 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

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

Midday of Monday 24 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:08  11:56 madhyāhna ends
10:2010:4411:0811:3211:5612:2012:44

0 of 48 minutes covered

Midday of Tuesday 25 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:07  11:55 madhyāhna ends
10:1910:4311:0711:3111:5512:1912:43

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 13:11 on Mon 24 Sep to 15:14 on Tue 25 Sep.

    2096-09-24T05:11:02Z → 2096-09-25T07:13:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 24th, 11:07–11:55 on the 25th.

    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 24th and 48 of 48 on the 25th.

    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 4517 s

  5. 05

    Ruling

    Rādhāṣṭamī, Daqing, 2096: Tuesday 25 September.

    confidence: determinate

Say it like this

In Daqing, Rādhāṣṭamī 2096 falls on Tuesday 25 September. Aṣṭamī runs from 13:11 on Mon 24 Sep to 15:14 on Tue 25 Sep and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2096/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 25 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 25 Sep
compat-drikpanchangComparison profileTue 25 Sep
No institution has a recorded ruling for Daqing.

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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles22:11 → 00:1412:2148 min12:200 min24 Sep
Chicago00:11 → 02:1412:1848 min12:180 min24 Sep
Jersey City01:11 → 03:1412:2448 min12:240 min24 Sep
Port of Spain01:11 → 03:1411:3448 min11:340 min24 Sep
London06:11 → 08:1412:2848 min12:280 min24 Sep
Durban07:11 → 09:1411:2448 min11:240 min24 Sep
Dubai09:11 → 11:1411:4748 min11:460 min24 Sep
Delhi10:41 → 12:4411:4948 min11:4948 min24 Sep
Kolkata10:41 → 12:4411:0548 min11:0448 min24 Sep
Singapore13:11 → 15:1412:3310 min12:3248 min25 Sep
Sydney15:11 → 17:1411:240 min11:2348 min25 Sep
Suva17:11 → 19:1411:350 min11:3448 min25 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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