Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 2071

Wednesday 13 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 26 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 13 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 Thursday 14 May

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
Pūrṇimā ends 11:25:09
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 10:38 on Wed 13 May to 11:25 on Thu 14 May.

    2071-05-13T02:37:35Z → 2071-05-14T03:25:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 13th, 11:51–12:39 on the 14th.

    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 13th and 0 of 48 on the 14th.

    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 1550 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 2071: Wednesday 13 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 2071 falls on Wednesday 13 May. Pūrṇimā runs from 10:38 on Wed 13 May to 11:25 on Thu 14 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2071/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 May
Ahargaṇa, classicalDisc centre, no refractionWed 13 May
compat-drikpanchangComparison profileWed 13 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles19:38 → 20:2512:2648 min12:260 min13 May
Chicago21:38 → 22:2512:2348 min12:230 min13 May
Jersey City22:38 → 23:2512:2948 min12:290 min13 May
Port of Spain22:38 → 23:2511:3948 min11:390 min13 May
London03:38 → 04:2512:3448 min12:340 min13 May
Durban04:38 → 05:2511:2848 min11:280 min13 May
Dubai06:38 → 07:2511:5148 min11:510 min13 May
Delhi08:08 → 08:5511:5448 min11:540 min13 May
Kolkata08:08 → 08:5511:0948 min11:090 min13 May
Singapore10:38 → 11:2512:3748 min12:370 min13 May
Sydney12:38 → 13:2511:280 min11:2848 min14 May
Suva14:38 → 15:2511:390 min11:3948 min14 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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