Ruling · Caitrī Pūrṇimā · 2086

Sunday 28 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 315 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 28 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 29 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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 04:52 on Sun 28 Apr to 06:37 on Mon 29 Apr.

    2086-04-27T20:52:05Z → 2086-04-28T22:36:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 28th, 11:52–12:40 on the 29th.

    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 28th and 0 of 48 on the 29th.

    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: paraviddha → only-day · margin 18917 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2086: Sunday 28 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2086 falls on Sunday 28 April. Pūrṇimā runs from 04:52 on Sun 28 Apr to 06:37 on Mon 29 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2086/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 28 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 28 Apr
compat-drikpanchangComparison profileSun 28 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/chaitri-purnima · ruleset 2026.3-draft

Month
Caitra, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 102

“S 15 Caitri purnima (paraviddha), Hanumat jayanti, Oli ending (Jain).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāMadhyāhna 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles13:52 → 15:3712:270 min12:2748 min28 Apr
Chicago15:52 → 17:3712:250 min12:2548 min28 Apr
Jersey City16:52 → 18:3712:310 min12:3048 min28 Apr
Port of Spain16:52 → 18:3711:400 min11:4048 min28 Apr
London21:52 → 23:3712:350 min12:3548 min28 Apr
Durban22:52 → 00:3711:300 min11:2948 min28 Apr
Dubai00:52 → 02:3711:530 min11:5348 min28 Apr
Delhi02:22 → 04:0711:550 min11:5548 min28 Apr
Kolkata02:22 → 04:0711:110 min11:1048 min28 Apr
Singapore04:52 → 06:3712:390 min12:3848 min28 Apr
Sydney06:52 → 08:3711:290 min11:2948 min28 Apr
Suva08:52 → 10:3711:400 min11:4048 min28 Apr
Profile · tradition
pac-rp@2026.1 · smarta
Rule
chaitri-purnima@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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