Ruling · Caitrī Pūrṇimā · 1981

Sunday 19 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 62 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 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 Sunday 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 13:44 on Sat 18 Apr to 15:59 on Sun 19 Apr.

    1981-04-18T05:44:11Z → 1981-04-19T07:58:55Z

  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 3738 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1981: Sunday 19 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1981 falls on Sunday 19 April. Pūrṇimā runs from 13:44 on Sat 18 Apr to 15:59 on Sun 19 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1981/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 19 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 19 Apr
compat-drikpanchangComparison profileSun 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 Angeles21:44 → 23:5911:2948 min11:280 min18 Apr
Chicago23:44 → 01:5911:2648 min11:260 min18 Apr
Jersey City00:44 → 02:5911:3248 min11:320 min18 Apr
Port of Spain01:44 → 03:5911:4148 min11:410 min18 Apr
London06:44 → 08:5912:3648 min12:360 min18 Apr
Durban07:44 → 09:5911:3148 min11:310 min18 Apr
Dubai09:44 → 11:5911:5448 min11:545 min19 Apr
Delhi11:14 → 13:2911:5748 min11:5648 min19 Apr
Kolkata11:14 → 13:2911:1246 min11:1248 min19 Apr
Singapore13:14 → 15:2912:100 min12:1048 min19 Apr
Sydney15:44 → 17:5911:300 min11:3048 min19 Apr
Suva17:44 → 19:5911:420 min11:4148 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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