Ruling · Buddha Pūrṇimā (Vaiśākhī Pūrṇimā) · 2055

Tuesday 11 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 52 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 10 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

Midday of Tuesday 11 May

Taken. Pūrṇimā reaches neither midday; the rule takes the second day.

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 13:31 on Mon 10 May to 10:32 on Tue 11 May.

    2055-05-10T05:30:56Z → 2055-05-11T02:32:04Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 10th, 11:51–12:39 on the 11th.

    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 10th and 0 of 48 on the 11th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: unstated → second-day · margin 3117 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 2055: Tuesday 11 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā (Vesak) 2055 falls on Tuesday 11 May. Pūrṇimā runs from 13:31 on Mon 10 May to 10:32 on Tue 11 May, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2055/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 11 May
Ahargaṇa, classicalDisc centre, no refractionTue 11 May
compat-drikpanchangComparison profileMon 10 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles22:31 → 19:3212:2648 min12:260 min10 May
Chicago00:31 → 21:3212:2348 min12:230 min10 May
Jersey City01:31 → 22:3212:2948 min12:290 min10 May
Port of Spain01:31 → 22:3211:3948 min11:390 min10 May
London06:31 → 03:3212:3448 min12:340 min10 May
Durban07:31 → 04:3211:2848 min11:280 min10 May
Dubai09:31 → 06:3211:5148 min11:510 min10 May
Delhi11:01 → 08:0211:5448 min11:540 min10 May
Kolkata11:01 → 08:0211:0948 min11:090 min10 May
Singapore13:31 → 10:3212:370 min12:370 min11 May
Sydney15:31 → 12:3211:280 min11:2848 min11 May
Suva17:31 → 14:3211:390 min11:3948 min11 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

About Ahargaṇa