Ruling · Caitrī Pūrṇimā · 2063

Friday 13 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 16 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 Thursday 12 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
Pūrṇimā begins 12:59:21
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Friday 13 April

Taken. Pūrṇimā reaches neither midday; the rule takes the second day.

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

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 12:59 on Thu 12 Apr to 10:35 on Fri 13 Apr.

    2063-04-12T04:59:22Z → 2063-04-13T02:35:07Z

  2. 02

    Kāla

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

    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 12th and 0 of 48 on the 13th.

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

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 955 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2063: Friday 13 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2063 falls on Friday 13 April. Pūrṇimā runs from 12:59 on Thu 12 Apr to 10:35 on Fri 13 Apr, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2063/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 13 Apr
Ahargaṇa, classicalDisc centre, no refractionFri 13 Apr
compat-drikpanchangComparison profileThu 12 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles21:59 → 19:3512:3048 min12:300 min12 Apr
Chicago23:59 → 21:3512:2848 min12:280 min12 Apr
Jersey City00:59 → 22:3512:3448 min12:330 min12 Apr
Port of Spain00:59 → 22:3511:4348 min11:430 min12 Apr
London05:59 → 03:3512:3848 min12:380 min12 Apr
Durban06:59 → 04:3511:3348 min11:320 min12 Apr
Dubai08:59 → 06:3511:5648 min11:560 min12 Apr
Delhi10:29 → 08:0511:5848 min11:580 min12 Apr
Kolkata10:29 → 08:0511:1448 min11:130 min12 Apr
Singapore12:59 → 10:3512:4230 min12:410 min12 Apr
Sydney14:59 → 12:3511:320 min11:3248 min13 Apr
Suva16:59 → 14:3511:430 min11:4348 min13 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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