Ruling · Caitrī Pūrṇimā · 1905

Wednesday 19 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 536 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 18 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

0 of 48 minutes covered

Midday of Wednesday 19 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

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 01:25 on Wed 19 Apr to 21:38 on Wed 19 Apr.

    1905-04-18T17:25:08Z → 1905-04-19T13:37:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 18th, 11:54–12:42 on the 19th.

    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 18th and 48 of 48 on the 19th.

    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 32161 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1905: Wednesday 19 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1905 falls on Wednesday 19 April. Pūrṇimā runs from 01:25 on Wed 19 Apr to 21:38 on Wed 19 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1905/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 19 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 19 Apr
compat-drikpanchangComparison profileWed 19 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles09:25 → 05:3811:2948 min11:280 min18 Apr
Chicago11:25 → 07:3811:2648 min11:260 min18 Apr
Jersey City12:25 → 08:3811:320 min11:320 min19 Apr
Port of Spain13:25 → 09:3811:420 min11:410 min19 Apr
London17:25 → 13:3811:360 min11:3648 min19 Apr
Durban19:25 → 15:3811:310 min11:3148 min19 Apr
Dubai21:06 → 17:1911:350 min11:3548 min19 Apr
Delhi22:46 → 18:5911:480 min11:4848 min19 Apr
Kolkata22:46 → 18:5911:030 min11:0348 min19 Apr
Singapore00:20 → 20:3311:350 min11:3548 min19 Apr
Sydney03:25 → 23:3811:300 min11:3048 min19 Apr
Suva05:20 → 01:3311:370 min11:3748 min19 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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