Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 2079

Monday 15 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 412 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 15 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 16 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 02:42 on Mon 15 May to 05:00 on Tue 16 May.

    2079-05-14T18:42:15Z → 2079-05-15T20:59:34Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 15th, 11:51–12:39 on the 16th.

    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 15th and 0 of 48 on the 16th.

    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 24691 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 2079: Monday 15 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 2079 falls on Monday 15 May. Pūrṇimā runs from 02:42 on Mon 15 May to 05:00 on Tue 16 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2079/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 15 May
Ahargaṇa, classicalDisc centre, no refractionMon 15 May
compat-drikpanchangComparison profileMon 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 Angeles11:42 → 14:0012:2648 min12:2648 min14 May
Chicago13:42 → 16:0012:240 min12:2448 min15 May
Jersey City14:42 → 17:0012:290 min12:2948 min15 May
Port of Spain14:42 → 17:0011:390 min11:3948 min15 May
London19:42 → 22:0012:340 min12:3448 min15 May
Durban20:42 → 23:0011:280 min11:2848 min15 May
Dubai22:42 → 01:0011:520 min11:5248 min15 May
Delhi00:12 → 02:3011:540 min11:5448 min15 May
Kolkata00:12 → 02:3011:090 min11:0948 min15 May
Singapore02:42 → 05:0012:370 min12:3748 min15 May
Sydney04:42 → 07:0011:280 min11:2848 min15 May
Suva06:42 → 09:0011:390 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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