Ruling · Rādhāṣṭamī · 1933

Monday 28 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 239 minutes.

Decide it for

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 28 August

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:17  12:05 madhyāhna ends
10:2910:5311:1711:4112:0512:2912:53

48 of 48 minutes covered

Midday of Tuesday 29 August

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:17  12:05 madhyāhna ends
10:2910:5311:1711:4112:0512:2912:53

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 07:18 on Mon 28 Aug to 05:06 on Tue 29 Aug.

    1933-08-27T23:17:32Z → 1933-08-28T21:05:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:17–12:05 on the 28th, 11:17–12:05 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 14362 s

  5. 05

    Ruling

    Rādhāṣṭamī, Daqing, 1933: Monday 28 August.

    confidence: determinate

Say it like this

In Daqing, Rādhāṣṭamī 1933 falls on Monday 28 August. Aṣṭamī runs from 07:18 on Mon 28 Aug to 05:06 on Tue 29 Aug and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1933/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 28 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 28 Aug
compat-drikpanchangComparison profileMon 28 Aug
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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles15:18 → 13:0611:300 min11:3048 min28 Aug
Chicago18:18 → 16:0612:280 min12:2748 min28 Aug
Jersey City19:18 → 17:0612:330 min12:3348 min28 Aug
Port of Spain19:18 → 17:0611:430 min11:4348 min28 Aug
London00:18 → 22:0612:370 min12:3748 min28 Aug
Durban01:18 → 23:0611:340 min11:3348 min28 Aug
Dubai03:18 → 01:0611:560 min11:5648 min28 Aug
Delhi04:48 → 02:3611:580 min11:5848 min28 Aug
Kolkata04:48 → 02:3611:140 min11:1448 min28 Aug
Singapore06:38 → 04:2612:020 min12:0248 min28 Aug
Sydney09:18 → 07:0611:330 min11:3348 min28 Aug
Suva11:18 → 09:0611:440 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

About Ahargaṇa