Ruling · Caitrī Pūrṇimā · 1997

Tuesday 22 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 439 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 Tuesday 22 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 Wednesday 23 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 03:29 on Tue 22 Apr to 04:33 on Wed 23 Apr.

    1997-04-21T19:28:56Z → 1997-04-22T20:33:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 22nd, 11:53–12:41 on the 23rd.

    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 22nd and 0 of 48 on the 23rd.

    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 26361 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1997: Tuesday 22 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1997 falls on Tuesday 22 April. Pūrṇimā runs from 03:29 on Tue 22 Apr to 04:33 on Wed 23 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1997/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 22 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 22 Apr
compat-drikpanchangComparison profileTue 22 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 Angeles12:29 → 13:3312:2847 min12:2848 min22 Apr
Chicago14:29 → 15:3312:260 min12:2548 min22 Apr
Jersey City15:29 → 16:3312:310 min12:3148 min22 Apr
Port of Spain15:29 → 16:3311:410 min11:4148 min22 Apr
London20:29 → 21:3312:360 min12:3648 min22 Apr
Durban21:29 → 22:3311:300 min11:3048 min22 Apr
Dubai23:29 → 00:3311:540 min11:5348 min22 Apr
Delhi00:59 → 02:0311:560 min11:5648 min22 Apr
Kolkata00:59 → 02:0311:110 min11:1148 min22 Apr
Singapore03:29 → 04:3312:390 min12:3948 min22 Apr
Sydney05:29 → 06:3311:300 min11:3048 min22 Apr
Suva07:29 → 08:3311:410 min11:4148 min22 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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