Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 1960

Wednesday 11 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 64 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 Tuesday 10 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 Wednesday 11 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 16:49 on Tue 10 May to 13:42 on Wed 11 May.

    1960-05-10T08:49:14Z → 1960-05-11T05:42:19Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 10th, 11:51–12:39 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 3814 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1960: Wednesday 11 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 1960 falls on Wednesday 11 May. Pūrṇimā runs from 16:49 on Tue 10 May to 13:42 on Wed 11 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1960/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 May
Ahargaṇa, classicalDisc centre, no refractionWed 11 May
compat-drikpanchangComparison profileWed 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles01:49 → 22:4212:2648 min12:260 min10 May
Chicago03:49 → 00:4212:2348 min12:230 min10 May
Jersey City04:49 → 01:4212:2948 min12:290 min10 May
Port of Spain04:49 → 01:4211:3848 min11:380 min10 May
London09:49 → 06:4212:3348 min12:330 min10 May
Durban10:49 → 07:4211:2848 min11:280 min10 May
Dubai12:49 → 09:4211:510 min11:510 min11 May
Delhi14:19 → 11:1211:540 min11:540 min11 May
Kolkata14:19 → 11:1211:090 min11:093 min11 May
Singapore16:19 → 13:1212:070 min12:0748 min11 May
Sydney18:49 → 15:4211:270 min11:2748 min11 May
Suva20:49 → 17:4211:390 min11:3948 min11 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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