Ruling · Caitrī Pūrṇimā · 2015

Saturday 4 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 302 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 3 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

0 of 48 minutes covered

Midday of Saturday 4 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

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 17:48 on Fri 3 Apr to 20:06 on Sat 4 Apr.

    2015-04-03T09:47:50Z → 2015-04-04T12:05:34Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 3rd, 11:58–12:46 on the 4th.

    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 3rd and 48 of 48 on the 4th.

    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 18113 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2015: Saturday 4 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2015 falls on Saturday 4 April. Pūrṇimā runs from 17:48 on Fri 3 Apr to 20:06 on Sat 4 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2015/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 4 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 4 Apr
compat-drikpanchangComparison profileSat 4 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles02:48 → 05:0612:3348 min12:320 min3 Apr
Chicago04:48 → 07:0612:3048 min12:300 min3 Apr
Jersey City05:48 → 08:0612:3648 min12:360 min3 Apr
Port of Spain05:48 → 08:0611:4548 min11:450 min3 Apr
London10:48 → 13:0612:4048 min12:4025 min4 Apr
Durban11:48 → 14:0611:3535 min11:3548 min4 Apr
Dubai13:48 → 16:0611:580 min11:5848 min4 Apr
Delhi15:18 → 17:3612:010 min12:0048 min4 Apr
Kolkata15:18 → 17:3611:160 min11:1648 min4 Apr
Singapore17:48 → 20:0612:440 min12:4448 min4 Apr
Sydney20:48 → 23:0612:340 min12:3448 min4 Apr
Suva21:48 → 00:0611:460 min11:4548 min4 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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