Ruling · Caitrī Pūrṇimā · 2099

Sunday 5 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 234 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 Saturday 4 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 Sunday 5 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 20:05 on Sat 4 Apr to 16:39 on Sun 5 Apr.

    2099-04-04T12:04:44Z → 2099-04-05T08:39:13Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 4th, 11:58–12:46 on the 5th.

    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 4th and 48 of 48 on the 5th.

    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 14020 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2099: Sunday 5 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2099 falls on Sunday 5 April. Pūrṇimā runs from 20:05 on Sat 4 Apr to 16:39 on Sun 5 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2099/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 5 Apr
compat-drikpanchangComparison profileSun 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles05:05 → 01:3912:3248 min12:320 min4 Apr
Chicago07:05 → 03:3912:3048 min12:300 min4 Apr
Jersey City08:05 → 04:3912:3648 min12:360 min4 Apr
Port of Spain08:05 → 04:3911:4548 min11:450 min4 Apr
London13:05 → 09:3912:4024 min12:400 min4 Apr
Durban14:05 → 10:3911:350 min11:350 min5 Apr
Dubai16:05 → 12:3911:580 min11:5841 min5 Apr
Delhi17:35 → 14:0912:010 min12:0048 min5 Apr
Kolkata17:35 → 14:0911:160 min11:1648 min5 Apr
Singapore20:05 → 16:3912:440 min12:4448 min5 Apr
Sydney23:05 → 18:3912:340 min11:3448 min5 Apr
Suva00:05 → 20:3911:460 min11:4548 min5 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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