Ruling · Buddha Pūrṇimā · 1924

Sunday 18 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 124 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 18 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 Monday 19 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 09:46 on Sun 18 May to 05:52 on Mon 19 May.

    1924-05-18T01:46:14Z → 1924-05-18T21:52:17Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 18th, 11:51–12:39 on the 19th.

    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 18th and 0 of 48 on the 19th.

    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 7467 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1924: Sunday 18 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā 1924 falls on Sunday 18 May. Pūrṇimā runs from 09:46 on Sun 18 May to 05:52 on Mon 19 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1924/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 18 May
Ahargaṇa, classicalDisc centre, no refractionSun 18 May
compat-drikpanchangComparison profileSun 18 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles17:46 → 13:5211:2548 min11:260 min18 May
Chicago20:46 → 16:5212:2348 min12:230 min18 May
Jersey City21:46 → 17:5212:2948 min12:290 min18 May
Port of Spain21:46 → 17:5211:3848 min11:380 min18 May
London02:46 → 22:5212:3348 min12:330 min18 May
Durban03:46 → 23:5211:2848 min11:280 min18 May
Dubai05:46 → 01:5211:5148 min11:510 min18 May
Delhi07:16 → 03:2211:5448 min11:540 min18 May
Kolkata07:16 → 03:2211:0948 min11:090 min18 May
Singapore08:46 → 04:5211:3748 min11:370 min18 May
Sydney11:46 → 07:5211:2729 min11:270 min18 May
Suva13:46 → 09:5211:380 min11:390 min19 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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