Ruling · Buddha Pūrṇimā · 1912

Wednesday 1 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 340 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 Tuesday 30 April

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

Midday of Wednesday 1 May

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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 18:38 on Tue 30 Apr to 18:19 on Wed 1 May.

    1912-04-30T10:37:35Z → 1912-05-01T10:19:05Z

  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 0 of 48 minutes on the 30th and 48 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 20372 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1912: Wednesday 1 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā 1912 falls on Wednesday 1 May. Pūrṇimā runs from 18:38 on Tue 30 Apr to 18:19 on Wed 1 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1912/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 1 May
Ahargaṇa, classicalDisc centre, no refractionWed 1 May
compat-drikpanchangComparison profileWed 1 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 30thCoveredMadhyāhna 1stCoveredRuled
Los Angeles02:38 → 02:1911:2648 min11:260 min30 Apr
Chicago04:38 → 04:1911:2448 min11:240 min30 Apr
Jersey City05:38 → 05:1911:3048 min11:300 min30 Apr
Port of Spain06:38 → 06:1911:3948 min11:390 min30 Apr
London10:38 → 10:1911:3448 min11:340 min30 Apr
Durban12:38 → 12:1911:290 min11:2948 min1 May
Dubai14:19 → 14:0011:330 min11:3348 min1 May
Delhi16:08 → 15:4911:540 min11:5448 min1 May
Kolkata16:08 → 15:4911:100 min11:1048 min1 May
Singapore17:38 → 17:1911:380 min11:3848 min1 May
Sydney20:38 → 20:1911:280 min11:2848 min1 May
Suva22:33 → 22:1411:340 min11:3448 min1 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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