Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 1954

Monday 17 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 364 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 17 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 Tuesday 18 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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 03:40 on Mon 17 May to 05:47 on Tue 18 May.

    1954-05-16T19:39:46Z → 1954-05-17T21:46:55Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 17th, 11:51–12:39 on the 18th.

    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 17th and 0 of 48 on the 18th.

    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 21826 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1954: Monday 17 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 1954 falls on Monday 17 May. Pūrṇimā runs from 03:40 on Mon 17 May to 05:47 on Tue 18 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1954/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 17 May
Ahargaṇa, classicalDisc centre, no refractionMon 17 May
compat-drikpanchangComparison profileMon 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles12:40 → 14:4712:2534 min12:2548 min17 May
Chicago14:40 → 16:4712:230 min12:2348 min17 May
Jersey City15:40 → 17:4712:290 min12:2948 min17 May
Port of Spain15:40 → 17:4711:380 min11:3848 min17 May
London20:40 → 22:4712:330 min12:3348 min17 May
Durban21:40 → 23:4711:280 min11:2848 min17 May
Dubai23:40 → 01:4711:510 min11:5148 min17 May
Delhi01:10 → 03:1711:530 min11:5348 min17 May
Kolkata01:10 → 03:1711:090 min11:0948 min17 May
Singapore03:10 → 05:1712:070 min12:0748 min17 May
Sydney05:40 → 07:4711:270 min11:2748 min17 May
Suva07:40 → 09:4711:380 min11:3848 min17 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

About Ahargaṇa