Ruling · Caitrī Pūrṇimā · 1951

Saturday 21 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 226 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 21 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

48 of 48 minutes covered

Midday of Sunday 22 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

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 08:08 on Sat 21 Apr to 05:30 on Sun 22 Apr.

    1951-04-21T00:07:42Z → 1951-04-21T21:29:56Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 21st, 11:53–12:41 on the 22nd.

    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 21st and 0 of 48 on the 22nd.

    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 13541 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1951: Saturday 21 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1951 falls on Saturday 21 April. Pūrṇimā runs from 08:08 on Sat 21 Apr to 05:30 on Sun 22 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1951/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 21 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 21 Apr
compat-drikpanchangComparison profileSat 21 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles16:08 → 13:3011:2848 min11:280 min21 Apr
Chicago18:08 → 15:3011:2648 min11:260 min21 Apr
Jersey City19:08 → 16:3011:3148 min11:310 min21 Apr
Port of Spain20:08 → 17:3011:4148 min11:410 min21 Apr
London01:08 → 22:3012:3648 min12:360 min21 Apr
Durban02:08 → 23:3011:3148 min11:300 min21 Apr
Dubai04:08 → 01:3011:5448 min11:540 min21 Apr
Delhi05:38 → 03:0011:5648 min11:560 min21 Apr
Kolkata05:38 → 03:0011:1248 min11:110 min21 Apr
Singapore07:38 → 05:0012:1048 min12:090 min21 Apr
Sydney10:08 → 07:3011:3048 min11:300 min21 Apr
Suva12:08 → 09:3011:4121 min11:410 min21 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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