Ruling · Caitrī Pūrṇimā · 1964

Sunday 26 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 603 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 26 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 27 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 00:15 on Sun 26 Apr to 01:50 on Mon 27 Apr.

    1964-04-25T16:14:56Z → 1964-04-26T17:49:32Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 26th, 11:52–12:40 on the 27th.

    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 26th and 0 of 48 on the 27th.

    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 36154 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1964: Sunday 26 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1964 falls on Sunday 26 April. Pūrṇimā runs from 00:15 on Sun 26 Apr to 01:50 on Mon 27 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1964/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 26 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 26 Apr
compat-drikpanchangComparison profileSun 26 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 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles08:15 → 10:5011:2748 min12:270 min25 Apr
Chicago10:15 → 12:5011:2548 min12:2525 min26 Apr
Jersey City11:15 → 13:5011:3148 min12:3048 min26 Apr
Port of Spain12:15 → 13:5011:4013 min11:4048 min26 Apr
London17:15 → 18:5012:350 min12:3548 min26 Apr
Durban18:15 → 19:5011:300 min11:2948 min26 Apr
Dubai20:15 → 21:5011:530 min11:5348 min26 Apr
Delhi21:45 → 23:2011:550 min11:5548 min26 Apr
Kolkata21:45 → 23:2011:110 min11:1048 min26 Apr
Singapore23:45 → 01:2012:090 min12:0848 min26 Apr
Sydney02:15 → 03:5011:290 min11:2948 min26 Apr
Suva04:15 → 05:5011:400 min11:4048 min26 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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