Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 2054

Thursday 21 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 638 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 Wednesday 20 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

Midday of Thursday 21 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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 23:47 on Wed 20 May to 23:17 on Thu 21 May.

    2054-05-20T15:46:53Z → 2054-05-21T15:16:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 20th, 11:51–12:39 on the 21st.

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

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.

    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 38251 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 2054: Thursday 21 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 2054 falls on Thursday 21 May. Pūrṇimā runs from 23:47 on Wed 20 May to 23:17 on Thu 21 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2054/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 21 May
Ahargaṇa, classicalDisc centre, no refractionThu 21 May
compat-drikpanchangComparison profileThu 21 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles08:47 → 08:1712:2648 min12:260 min20 May
Chicago10:47 → 10:1712:2448 min12:240 min20 May
Jersey City11:47 → 11:1712:2948 min12:290 min20 May
Port of Spain11:47 → 11:1711:3940 min11:390 min20 May
London16:47 → 16:1712:340 min12:3448 min21 May
Durban17:47 → 17:1711:280 min11:2948 min21 May
Dubai19:47 → 19:1711:520 min11:5248 min21 May
Delhi21:17 → 20:4711:540 min11:5448 min21 May
Kolkata21:17 → 20:4711:090 min11:0948 min21 May
Singapore23:47 → 23:1712:370 min12:3748 min21 May
Sydney01:47 → 01:1711:280 min11:2848 min21 May
Suva03:47 → 03:1711:390 min11:3948 min21 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

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