Ruling · Buddha Pūrṇimā · 2032

Monday 24 May

Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 4 min 25 s away. Say “contested”.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 24 May

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:13  12:01 madhyāhna ends
Pūrṇimā begins 11:56:47
10:2510:4911:1311:3712:0112:2512:49

4 of 48 minutes covered, the last 4

Midday of Tuesday 25 May

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:13  12:01 madhyāhna ends
Pūrṇimā ends 10:37:15
10:2510:4911:1311:3712:0112:2512:49

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 11:57 on Mon 24 May to 10:37 on Tue 25 May.

    2032-05-24T03:56:47Z → 2032-05-25T02:37:15Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 24th, 11:13–12:01 on the 25th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 4 of 48 minutes on the 24th and 0 of 48 on the 25th.

    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 265 s < 300 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Daqing, 2032: Monday 24 May.

    confidence: boundary (margin)

Say it like this

In Daqing, Buddha Pūrṇimā 2032 falls on Monday 24 May. Pūrṇimā runs from 11:57 on Mon 24 May to 10:37 on Tue 25 May and covers 4 of 48 minutes of madhyāhna that midday. It is 4 min 25 s from a threshold: treat the date as contested.

ahargana.org/daqing/festivals/2032/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 24 May
Ahargaṇa, classicalDisc centre, no refractionMon 24 May
compat-drikpanchangComparison profileMon 24 May
No institution has a recorded ruling for Daqing.

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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles20:57 → 19:3712:2648 min12:260 min24 May
Chicago22:57 → 21:3712:2448 min12:240 min24 May
Jersey City23:57 → 22:3712:2948 min12:300 min24 May
Port of Spain23:57 → 22:3711:3948 min11:390 min24 May
London04:57 → 03:3712:3448 min12:340 min24 May
Durban05:57 → 04:3711:2948 min11:290 min24 May
Dubai07:57 → 06:3711:5248 min11:520 min24 May
Delhi09:27 → 08:0711:5448 min11:540 min24 May
Kolkata09:27 → 08:0711:1048 min11:100 min24 May
Singapore11:57 → 10:3712:3848 min12:380 min24 May
Sydney13:57 → 12:3711:280 min11:2848 min25 May
Suva15:57 → 14:3711:390 min11:3948 min25 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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