Ruling · Buddha Pūrṇimā · 1930

Monday 12 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 593 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 12 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 13 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 01:58 on Mon 12 May to 01:29 on Tue 13 May.

    1930-05-11T17:58:07Z → 1930-05-12T17:29:12Z

  2. 02

    Kāla

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

    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 12th and 0 of 48 on the 13th.

    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 35553 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1930: Monday 12 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā 1930 falls on Monday 12 May. Pūrṇimā runs from 01:58 on Mon 12 May to 01:29 on Tue 13 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1930/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 12 May
Ahargaṇa, classicalDisc centre, no refractionMon 12 May
compat-drikpanchangComparison profileMon 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles09:58 → 09:2911:2548 min11:250 min11 May
Chicago12:58 → 12:2912:2313 min12:236 min11 May
Jersey City13:58 → 13:2912:290 min12:2948 min12 May
Port of Spain13:58 → 13:2911:380 min11:3848 min12 May
London18:58 → 18:2912:330 min12:3348 min12 May
Durban19:58 → 19:2911:280 min11:2848 min12 May
Dubai21:58 → 21:2911:510 min11:5148 min12 May
Delhi23:28 → 22:5911:540 min11:5348 min12 May
Kolkata23:28 → 22:5911:090 min11:0948 min12 May
Singapore00:58 → 00:2911:370 min11:3748 min12 May
Sydney03:58 → 03:2911:270 min11:2748 min12 May
Suva05:58 → 05:2911:380 min11:3848 min12 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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