Ruling · Caitrī Pūrṇimā · 2091

Wednesday 4 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 35 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 Tuesday 3 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
Pūrṇimā begins 13:20:48
11:1011:3411:5812:2212:4613:1013:34

0 of 48 minutes covered

Midday of Wednesday 4 April

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

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

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 13:21 on Tue 3 Apr to 09:33 on Wed 4 Apr.

    2091-04-03T05:20:49Z → 2091-04-04T01:32:57Z

  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 0 of 48 on the 4th.

    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 2084 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2091: Wednesday 4 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2091 falls on Wednesday 4 April. Pūrṇimā runs from 13:21 on Tue 3 Apr to 09:33 on Wed 4 Apr, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2091/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 4 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 4 Apr
compat-drikpanchangComparison profileTue 3 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 Angeles22:21 → 18:3312:3348 min12:320 min3 Apr
Chicago00:21 → 20:3312:3048 min12:300 min3 Apr
Jersey City01:21 → 21:3312:3648 min12:360 min3 Apr
Port of Spain01:21 → 21:3311:4648 min11:450 min3 Apr
London06:21 → 02:3312:4148 min12:400 min3 Apr
Durban07:21 → 03:3311:3548 min11:350 min3 Apr
Dubai09:21 → 05:3311:5948 min11:580 min3 Apr
Delhi10:51 → 07:0312:0148 min12:010 min3 Apr
Kolkata10:51 → 07:0311:1648 min11:160 min3 Apr
Singapore13:21 → 09:3312:4411 min12:440 min3 Apr
Sydney15:21 → 11:3311:350 min11:340 min4 Apr
Suva17:21 → 13:3311:460 min11:4648 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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