Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 2031

Wednesday 7 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 11 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 6 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 7 May

Taken. Pūrṇimā reaches neither midday; the rule takes the second day.

madhyāhna begins 11:51  12:39 madhyāhna ends
Pūrṇimā ends 11:39:53
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 14:10 on Tue 6 May to 11:40 on Wed 7 May.

    2031-05-06T06:10:00Z → 2031-05-07T03:39:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 6th, 11:51–12:39 on the 7th.

    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 6th and 0 of 48 on the 7th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: unstated → second-day · margin 670 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 2031: Wednesday 7 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 2031 falls on Wednesday 7 May. Pūrṇimā runs from 14:10 on Tue 6 May to 11:40 on Wed 7 May, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2031/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 7 May
Ahargaṇa, classicalDisc centre, no refractionWed 7 May
compat-drikpanchangComparison profileWed 7 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 6thCoveredMadhyāhna 7thCoveredRuled
Los Angeles23:10 → 20:4012:2648 min12:260 min6 May
Chicago01:10 → 22:4012:2448 min12:240 min6 May
Jersey City02:10 → 23:4012:2948 min12:290 min6 May
Port of Spain02:10 → 23:4011:3948 min11:390 min6 May
London07:10 → 04:4012:3448 min12:340 min6 May
Durban08:10 → 05:4011:2848 min11:280 min6 May
Dubai10:10 → 07:4011:5248 min11:520 min6 May
Delhi11:40 → 09:1011:5448 min11:540 min6 May
Kolkata11:40 → 09:1011:0917 min11:090 min6 May
Singapore14:10 → 11:4012:370 min12:370 min7 May
Sydney16:10 → 13:4011:280 min11:2848 min7 May
Suva18:10 → 15:4011:390 min11:3948 min7 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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