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May 2021 · each Moon as it stands at sunriseCaitra Kṛṣṇa to Vaiśākha KṛṣṇaThe month ›

Ruling · 2021 · Doha

Buddha Pūrṇimā

Wednesday 26 May2021 · Doha, Baladiyat ad Dawhah, Qatar

Determinatemargin 139 min

In Doha, under the Rashtriya Panchang method. Clear of every threshold by 139 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 Tuesday 25 May

Pūrṇimā is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Wednesday 26 May

Taken. The only midday Pūrṇimā reaches.

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

48 of 48 minutes covered

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

How it was decided निर्णय

  1. Step 1, Aṅga

    Pūrṇimā runs from 18:00 on Tue 25 May to 14:14 on Wed 26 May.

    2021-05-25T15:00:03Z → 2021-05-26T11:13:53Z
  2. Step 2, Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 25th, 11:07–11:55 on the 26th.

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

    Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102
  4. Step 4, Tie-break

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

    one day qualifies → only-day · margin 8330 s
  5. Step 5, Ruling

    Buddha Pūrṇimā, Doha, 2021: Wednesday 26 May.

    confidence: determinate

Say it like this

In Doha, Buddha Pūrṇimā 2021 falls on Wednesday 26 May. Pūrṇimā runs from 18:00 on Tue 25 May to 14:14 on Wed 26 May and covers all of madhyāhna that midday.

ahargana.org/doha/festivals/2021/buddha-purnimapac-rp@2026.1

Who says what

never edited to agree

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 26 May
Ahargaṇa, classicalDisc centre, no refractionWed 26 May
compat-drikpanchangComparison profileWed 26 May
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

buddha-purnima · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima. Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

twelve places, west to east · local clocks

PlacePūrṇimāMadhyāhna 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles08:00 → 04:1412:2648 min12:260 min25 May
Chicago10:00 → 06:1412:2448 min12:240 min25 May
Jersey City11:00 → 07:1412:3048 min12:300 min25 May
Port of Spain11:00 → 07:1411:3948 min11:390 min25 May
London16:00 → 12:1412:340 min12:340 min26 May
Durban17:00 → 13:1411:290 min11:2948 min26 May
Dubai19:00 → 15:1411:520 min11:5248 min26 May
Delhi20:30 → 16:4411:540 min11:5448 min26 May
Kolkata20:30 → 16:4411:100 min11:1048 min26 May
Singapore23:00 → 19:1412:380 min12:3848 min26 May
Sydney01:00 → 21:1411:280 min11:2848 min26 May
Suva03:00 → 23:1411:390 min11:3948 min26 May
This ruling as JSON · ICS
Profile · tradition
pac-rp@2026.1 · smarta
Rule
buddha-purnima@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s