Ruling · Caitrī Pūrṇimā · 1927

Saturday 16 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 19 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 16 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

48 of 48 minutes covered

Midday of Sunday 17 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
Pūrṇimā ends 11:35:12
11:0611:3011:5412:1812:4213:0613:30

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 09:17 on Sat 16 Apr to 11:35 on Sun 17 Apr.

    1927-04-16T01:17:13Z → 1927-04-17T03:35:13Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 16th, 11:54–12:42 on the 17th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.

    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 1147 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1927: Saturday 16 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1927 falls on Saturday 16 April. Pūrṇimā runs from 09:17 on Sat 16 Apr to 11:35 on Sun 17 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1927/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 16 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 16 Apr
compat-drikpanchangComparison profileSun 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles17:17 → 19:3511:2948 min11:290 min16 Apr
Chicago19:17 → 21:3511:2748 min11:270 min16 Apr
Jersey City20:17 → 22:3511:3348 min11:320 min16 Apr
Port of Spain21:17 → 23:3511:4248 min11:420 min16 Apr
London02:17 → 04:3512:3748 min12:370 min16 Apr
Durban03:17 → 05:3511:3248 min11:310 min16 Apr
Dubai05:17 → 07:3511:5548 min11:550 min16 Apr
Delhi06:47 → 09:0511:5748 min11:570 min16 Apr
Kolkata06:47 → 09:0511:1348 min11:130 min16 Apr
Singapore08:17 → 10:3511:4148 min11:400 min16 Apr
Sydney11:17 → 13:3511:3148 min11:3148 min17 Apr
Suva13:17 → 15:3511:420 min11:4248 min17 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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