Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 1964

Tuesday 26 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 146 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 Monday 25 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 Tuesday 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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 15:05 on Mon 25 May to 17:29 on Tue 26 May.

    1964-05-25T07:05:19Z → 1964-05-26T09:28:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 25th, 11:51–12:39 on the 26th.

    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 25th and 48 of 48 on the 26th.

    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 8768 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1964: Tuesday 26 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 1964 falls on Tuesday 26 May. Pūrṇimā runs from 15:05 on Mon 25 May to 17:29 on Tue 26 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1964/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 26 May
Ahargaṇa, classicalDisc centre, no refractionTue 26 May
compat-drikpanchangComparison profileTue 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 Angeles00:05 → 02:2912:2648 min12:260 min25 May
Chicago02:05 → 04:2912:2448 min12:240 min25 May
Jersey City03:05 → 05:2912:2948 min12:300 min25 May
Port of Spain03:05 → 05:2911:3948 min11:390 min25 May
London08:05 → 10:2912:3448 min12:340 min25 May
Durban09:05 → 11:2911:2948 min11:290 min25 May
Dubai11:05 → 13:2911:5248 min11:5248 min25 May
Delhi12:35 → 14:5911:547 min11:5448 min26 May
Kolkata12:35 → 14:5911:090 min11:1048 min26 May
Singapore14:35 → 16:5912:070 min12:0848 min26 May
Sydney17:05 → 19:2911:280 min11:2848 min26 May
Suva19:05 → 21:2911:390 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

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