Ruling · Caitrī Pūrṇimā · 2023

Thursday 6 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 7 min 50 s.

Decide it for

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 5 April

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
Pūrṇimā begins 11:49:29
11:0911:3311:5712:2112:4513:0913:33

48 of 48 minutes covered

Midday of Thursday 6 April

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:57  12:45 madhyāhna ends
Pūrṇimā ends 12:34:31
11:0911:3311:5712:2112:4513:0913:33

37 of 48 minutes covered, the first 37

Pūrṇimā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 11:49 on Wed 5 Apr to 12:35 on Thu 6 Apr.

    2023-04-05T03:49:30Z → 2023-04-06T04:34:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 5th, 11:57–12:45 on the 6th.

    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 5th and 37 of 48 on the 6th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 470 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2023: Thursday 6 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2023 falls on Thursday 6 April. Pūrṇimā runs from 11:49 on Wed 5 Apr to 12:35 on Thu 6 Apr and covers 37 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/baoding/festivals/2023/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 6 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 6 Apr
compat-drikpanchangComparison profileThu 6 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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles20:49 → 21:3512:3248 min12:320 min5 Apr
Chicago22:49 → 23:3512:3048 min12:290 min5 Apr
Jersey City23:49 → 00:3512:3548 min12:350 min5 Apr
Port of Spain23:49 → 00:3511:4548 min11:450 min5 Apr
London04:49 → 05:3512:4048 min12:400 min5 Apr
Durban05:49 → 06:3511:3448 min11:340 min5 Apr
Dubai07:49 → 08:3511:5848 min11:570 min5 Apr
Delhi09:19 → 10:0512:0048 min12:000 min5 Apr
Kolkata09:19 → 10:0511:1648 min11:150 min5 Apr
Singapore11:49 → 12:3512:4348 min12:430 min5 Apr
Sydney13:49 → 14:3511:340 min11:3448 min6 Apr
Suva15:49 → 16:3511:450 min11:4548 min6 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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