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September 1985 · each Moon as it stands at sunriseŚrāvaṇa Kṛṣṇa to Bhādrapada KṛṣṇaThe month ›

Ruling · 1985 · Doha

Rādhāṣṭamī

Saturday 21 September1985 · Doha, Baladiyat ad Dawhah, Qatar

Determinatemargin 489 min

In Doha, under the Rashtriya Panchang method. Clear of every threshold by 489 minutes.

Decide it forDohaDelhiKolkataSingaporeSydneyJersey City25°17′ N 51°32′ E · Asia/Qatar · GeoNames 290030

The two middays मध्याह्न

One ghaṭī is 24 minutes

Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Saturday 21 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:03  11:51 madhyāhna ends
10:1510:3911:0311:2711:5112:1512:39

48 of 48 minutes covered

Midday of Sunday 22 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:02  11:50 madhyāhna ends
10:1410:3811:0211:2611:5012:1412:38

0 of 48 minutes covered

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided निर्णय

  1. Step 1, Aṅga

    Aṣṭamī runs from 02:53 on Sat 21 Sep to 01:19 on Sun 22 Sep.

    1985-09-20T23:53:21Z → 1985-09-21T22:19:14Z
  2. Step 2, Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:03–11:51 on the 21st, 11:02–11:50 on the 22nd.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
  3. Step 3, Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
  4. Step 4, Tie-break

    Only one midday qualifies. No tie-break is needed.

    one day qualifies → only-day · margin 29368 s
  5. Step 5, Ruling

    Rādhāṣṭamī, Doha, 1985: Saturday 21 September.

    confidence: determinate

Say it like this

In Doha, Rādhāṣṭamī 1985 falls on Saturday 21 September. Aṣṭamī runs from 02:53 on Sat 21 Sep to 01:19 on Sun 22 Sep and covers all of madhyāhna that midday.

ahargana.org/doha/festivals/1985/radhashtamipac-rp@2026.1

Who says what

never edited to agree

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 21 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 21 Sep
compat-drikpanchangComparison profileSat 21 Sep
No institution has a recorded ruling for Doha.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

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 clocks

PlaceAṣṭamīMadhyāhna 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles16:53 → 15:1912:220 min12:2248 min21 Sep
Chicago18:53 → 17:1912:200 min12:1948 min21 Sep
Jersey City19:53 → 18:1912:250 min12:2548 min21 Sep
Port of Spain19:53 → 18:1911:350 min11:3548 min21 Sep
London00:53 → 23:1912:290 min12:2948 min21 Sep
Durban01:53 → 00:1911:260 min11:2548 min21 Sep
Dubai03:53 → 02:1911:480 min11:4848 min21 Sep
Delhi05:23 → 03:4911:500 min11:5048 min21 Sep
Kolkata05:23 → 03:4911:060 min11:0648 min21 Sep
Singapore07:53 → 06:1912:340 min12:3448 min21 Sep
Sydney09:53 → 08:1911:250 min11:2548 min21 Sep
Suva11:53 → 10:1911:360 min11:3630 min21 Sep
This ruling as JSON · ICS
Profile · tradition
pac-rp@2026.1 · smarta
Rule
radhashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s