Ruling · Caitrī Pūrṇimā · 2039

Saturday 9 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 63 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 Friday 8 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

0 of 48 minutes covered

Midday of Saturday 9 April

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

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

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 13:56 on Fri 8 Apr to 10:53 on Sat 9 Apr.

    2039-04-08T05:56:21Z → 2039-04-09T02:52:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 8th, 11:56–12:44 on the 9th.

    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 8th and 0 of 48 on the 9th.

    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 3803 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2039: Saturday 9 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2039 falls on Saturday 9 April. Pūrṇimā runs from 13:56 on Fri 8 Apr to 10:53 on Sat 9 Apr, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2039/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 9 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 9 Apr
compat-drikpanchangComparison profileSat 9 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles22:56 → 19:5312:3148 min12:310 min8 Apr
Chicago00:56 → 21:5312:2948 min12:290 min8 Apr
Jersey City01:56 → 22:5312:3548 min12:340 min8 Apr
Port of Spain01:56 → 22:5311:4448 min11:440 min8 Apr
London06:56 → 03:5312:3948 min12:390 min8 Apr
Durban07:56 → 04:5311:3448 min11:330 min8 Apr
Dubai09:56 → 06:5311:5748 min11:570 min8 Apr
Delhi11:26 → 08:2311:5948 min11:590 min8 Apr
Kolkata11:26 → 08:2311:1536 min11:140 min8 Apr
Singapore13:56 → 10:5312:430 min12:420 min9 Apr
Sydney15:56 → 12:5311:330 min11:3348 min9 Apr
Suva17:56 → 14:5311:440 min11:4448 min9 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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