Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 1988

Sunday 1 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 251 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 Sunday 1 May

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 12:52  13:40 madhyāhna ends
12:0412:2812:5213:1613:4014:0414:28

48 of 48 minutes covered

Midday of Monday 2 May

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

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 08:25 on Sun 1 May to 08:41 on Mon 2 May.

    1988-04-30T23:24:54Z → 1988-05-01T23:40:47Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:52–13:40 on the 1st, 12:51–13:39 on the 2nd.

    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 1st and 0 of 48 on the 2nd.

    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 15039 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1988: Sunday 1 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 1988 falls on Sunday 1 May. Pūrṇimā runs from 08:25 on Sun 1 May to 08:41 on Mon 2 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1988/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 1 May
Ahargaṇa, classicalDisc centre, no refractionSun 1 May
compat-drikpanchangComparison profileSun 1 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 30thCoveredMadhyāhna 1stCoveredRuled
Los Angeles16:25 → 16:4112:260 min12:2648 min1 May
Chicago18:25 → 18:4112:240 min12:2448 min1 May
Jersey City19:25 → 19:4112:300 min12:3048 min1 May
Port of Spain19:25 → 19:4111:390 min11:3948 min1 May
London00:25 → 00:4112:340 min12:3448 min1 May
Durban01:25 → 01:4111:290 min11:2948 min1 May
Dubai03:25 → 03:4111:520 min11:5248 min1 May
Delhi04:55 → 05:1111:540 min11:5448 min1 May
Kolkata04:55 → 05:1111:100 min11:1048 min1 May
Singapore07:25 → 07:4112:380 min12:3848 min1 May
Sydney09:25 → 09:4111:280 min11:2848 min1 May
Suva11:25 → 11:4111:390 min11:3948 min1 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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