Ruling · Caitrī Pūrṇimā · 1959

Thursday 23 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 32 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 Wednesday 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

Midday of Thursday 23 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
Pūrṇimā ends 13:13:19
11:0511:2911:5312:1712:4113:0513:29

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 16:51 on Wed 22 Apr to 13:13 on Thu 23 Apr.

    1959-04-22T08:50:45Z → 1959-04-23T05:13:19Z

  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 0 of 48 minutes on the 22nd and 48 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 1941 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1959: Thursday 23 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1959 falls on Thursday 23 April. Pūrṇimā runs from 16:51 on Wed 22 Apr to 13:13 on Thu 23 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1959/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 23 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 23 Apr
compat-drikpanchangComparison profileThu 23 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 22ndCoveredMadhyāhna 23rdCoveredRuled
Los Angeles00:51 → 21:1311:2848 min11:280 min22 Apr
Chicago02:51 → 23:1311:2648 min11:250 min22 Apr
Jersey City03:51 → 00:1311:3148 min11:310 min22 Apr
Port of Spain04:51 → 01:1311:4148 min11:410 min22 Apr
London09:51 → 06:1312:3648 min12:350 min22 Apr
Durban10:51 → 07:1311:3048 min11:300 min22 Apr
Dubai12:51 → 09:1311:540 min11:530 min23 Apr
Delhi14:21 → 10:4311:560 min11:560 min23 Apr
Kolkata14:21 → 10:4311:110 min11:110 min23 Apr
Singapore16:21 → 12:4312:090 min12:0934 min23 Apr
Sydney18:51 → 15:1311:300 min11:2948 min23 Apr
Suva20:51 → 17:1311:410 min11:4148 min23 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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