Ruling · Caitrī Pūrṇimā · 1917

Saturday 7 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 490 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 6 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

0 of 48 minutes covered

Midday of Saturday 7 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

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 20:55 on Fri 6 Apr to 21:48 on Sat 7 Apr.

    1917-04-06T12:55:29Z → 1917-04-07T13:48:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 6th, 11:57–12:45 on the 7th.

    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 6th and 48 of 48 on the 7th.

    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 29420 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1917: Saturday 7 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1917 falls on Saturday 7 April. Pūrṇimā runs from 20:55 on Fri 6 Apr to 21:48 on Sat 7 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1917/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 7 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 7 Apr
compat-drikpanchangComparison profileSat 7 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 6thCoveredMadhyāhna 7thCoveredRuled
Los Angeles04:55 → 05:4811:3248 min11:310 min6 Apr
Chicago06:55 → 07:4811:2948 min11:290 min6 Apr
Jersey City07:55 → 08:4811:3548 min11:350 min6 Apr
Port of Spain08:55 → 09:4811:4548 min11:440 min6 Apr
London12:55 → 13:4811:400 min11:3948 min7 Apr
Durban14:55 → 15:4811:340 min11:3448 min7 Apr
Dubai16:36 → 17:2911:390 min11:3848 min7 Apr
Delhi18:25 → 19:1812:000 min12:0048 min7 Apr
Kolkata18:25 → 19:1811:150 min11:1548 min7 Apr
Singapore19:55 → 20:4811:430 min11:4348 min7 Apr
Sydney22:55 → 23:4811:340 min11:3348 min7 Apr
Suva00:55 → 01:4811:450 min11:4548 min7 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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