Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 1983

Thursday 26 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 544 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

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

Midday of Thursday 26 May

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

48 of 48 minutes covered

Midday of Friday 27 May

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 02:28 on Thu 26 May to 02:48 on Fri 27 May.

    1983-05-25T18:28:10Z → 1983-05-26T18:47:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 26th, 11:51–12:39 on the 27th.

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

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 32620 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1983: Thursday 26 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 1983 falls on Thursday 26 May. Pūrṇimā runs from 02:28 on Thu 26 May to 02:48 on Fri 27 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1983/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 26 May
Ahargaṇa, classicalDisc centre, no refractionThu 26 May
compat-drikpanchangComparison profileThu 26 May
No institution has a recorded ruling for Baoding.

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

The rule, as data

/rules/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 clock times.

PlacePūrṇimāMadhyāhna 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles11:28 → 11:4812:2648 min12:260 min25 May
Chicago13:28 → 13:4812:240 min12:2448 min26 May
Jersey City14:28 → 14:4812:290 min12:2948 min26 May
Port of Spain14:28 → 14:4811:390 min11:3948 min26 May
London19:28 → 19:4812:340 min12:3448 min26 May
Durban20:28 → 20:4811:290 min11:2948 min26 May
Dubai22:28 → 22:4811:520 min11:5248 min26 May
Delhi23:58 → 00:1811:540 min11:5448 min26 May
Kolkata23:58 → 00:1811:090 min11:1048 min26 May
Singapore02:28 → 02:4812:370 min12:3748 min26 May
Sydney04:28 → 04:4811:280 min11:2848 min26 May
Suva06:28 → 06:4811:390 min11:3948 min26 May
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

About Ahargaṇa