Ruling · Caitrī Pūrṇimā · 1957

Sunday 14 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 446 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 Saturday 13 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Sunday 14 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

48 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 22:50 on Sat 13 Apr to 20:09 on Sun 14 Apr.

    1957-04-13T14:49:45Z → 1957-04-14T12:09:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 13th, 11:55–12:43 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 26787 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1957: Sunday 14 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1957 falls on Sunday 14 April. Pūrṇimā runs from 22:50 on Sat 13 Apr to 20:09 on Sun 14 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1957/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 14 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 14 Apr
compat-drikpanchangComparison profileSun 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles06:50 → 04:0911:3048 min11:290 min13 Apr
Chicago08:50 → 06:0911:2748 min11:270 min13 Apr
Jersey City09:50 → 07:0911:3348 min11:330 min13 Apr
Port of Spain10:50 → 08:0911:4348 min11:420 min13 Apr
London14:50 → 13:0911:380 min12:3732 min14 Apr
Durban16:50 → 14:0911:320 min11:3248 min14 Apr
Dubai18:50 → 16:0911:560 min11:5548 min14 Apr
Delhi20:20 → 17:3911:580 min11:5848 min14 Apr
Kolkata20:20 → 17:3911:130 min11:1348 min14 Apr
Singapore22:20 → 19:3912:110 min12:1148 min14 Apr
Sydney00:50 → 22:0911:320 min11:3148 min14 Apr
Suva02:50 → 00:0911:430 min11:4348 min14 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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