Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 1984

Tuesday 15 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 10 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 14 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 15 May

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
Pūrṇimā ends 12:28:35
11:0311:2711:5112:1512:3913:0313:27

38 of 48 minutes covered, the first 38

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 14:46 on Mon 14 May to 12:29 on Tue 15 May.

    1984-05-14T06:45:53Z → 1984-05-15T04:28:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 14th, 11:51–12:39 on the 15th.

    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 14th and 38 of 48 on the 15th.

    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 608 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1984: Tuesday 15 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 1984 falls on Tuesday 15 May. Pūrṇimā runs from 14:46 on Mon 14 May to 12:29 on Tue 15 May and covers 38 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1984/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 15 May
Ahargaṇa, classicalDisc centre, no refractionTue 15 May
compat-drikpanchangComparison profileTue 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles23:46 → 21:2912:2548 min12:250 min14 May
Chicago01:46 → 23:2912:2348 min12:230 min14 May
Jersey City02:46 → 00:2912:2948 min12:290 min14 May
Port of Spain02:46 → 00:2911:3848 min11:380 min14 May
London07:46 → 05:2912:3348 min12:330 min14 May
Durban08:46 → 06:2911:2848 min11:280 min14 May
Dubai10:46 → 08:2911:5148 min11:510 min14 May
Delhi12:16 → 09:5911:5426 min11:540 min14 May
Kolkata12:16 → 09:5911:090 min11:090 min15 May
Singapore14:46 → 12:2912:370 min12:370 min15 May
Sydney16:46 → 14:2911:270 min11:2748 min15 May
Suva18:46 → 16:2911:390 min11:3948 min15 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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