Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 1961

Sunday 30 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 507 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 Sunday 30 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

48 of 48 minutes covered

Midday of Monday 1 May

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 03:25 on Sun 30 Apr to 02:40 on Mon 1 May.

    1961-04-29T19:25:11Z → 1961-04-30T18:40:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 30th, 11:52–12:40 on the 1st.

    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 30th and 0 of 48 on the 1st.

    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 30392 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1961: Sunday 30 April.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 1961 falls on Sunday 30 April. Pūrṇimā runs from 03:25 on Sun 30 Apr to 02:40 on Mon 1 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1961/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 30 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 30 Apr
compat-drikpanchangComparison profileSun 30 Apr
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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles11:25 → 11:4011:2748 min12:260 min29 Apr
Chicago13:25 → 13:4011:240 min12:2448 min30 Apr
Jersey City14:25 → 14:4011:300 min12:3048 min30 Apr
Port of Spain15:25 → 14:4011:390 min11:3948 min30 Apr
London20:25 → 19:4012:340 min12:3448 min30 Apr
Durban21:25 → 20:4011:290 min11:2948 min30 Apr
Dubai23:25 → 22:4011:520 min11:5248 min30 Apr
Delhi00:55 → 00:1011:550 min11:5548 min30 Apr
Kolkata00:55 → 00:1011:100 min11:1048 min30 Apr
Singapore02:55 → 02:1012:080 min12:0848 min30 Apr
Sydney05:25 → 04:4011:280 min11:2848 min30 Apr
Suva07:25 → 06:4011:400 min11:3948 min30 Apr
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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