Ruling · Caitrī Pūrṇimā · 2082

Monday 13 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 54 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 Sunday 12 April

Pūrṇimā is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Monday 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 13:37 on Sun 12 Apr to 09:47 on Mon 13 Apr.

    2082-04-12T05:37:13Z → 2082-04-13T01:46:44Z

  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 3224 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2082: Monday 13 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2082 falls on Monday 13 April. Pūrṇimā runs from 13:37 on Sun 12 Apr to 09:47 on Mon 13 Apr, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2082/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 13 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 13 Apr
compat-drikpanchangComparison profileSun 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 Angeles22:37 → 18:4712:3048 min12:300 min12 Apr
Chicago00:37 → 20:4712:2848 min12:280 min12 Apr
Jersey City01:37 → 21:4712:3448 min12:330 min12 Apr
Port of Spain01:37 → 21:4711:4348 min11:430 min12 Apr
London06:37 → 02:4712:3848 min12:380 min12 Apr
Durban07:37 → 03:4711:3348 min11:320 min12 Apr
Dubai09:37 → 05:4711:5648 min11:560 min12 Apr
Delhi11:07 → 07:1711:5848 min11:580 min12 Apr
Kolkata11:07 → 07:1711:1448 min11:130 min12 Apr
Singapore13:37 → 09:4712:420 min12:410 min13 Apr
Sydney15:37 → 11:4711:320 min11:3215 min13 Apr
Suva17:37 → 13:4711:430 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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