Ruling · Caitrī Pūrṇimā · 2026

Wednesday 1 April

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 265 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Wednesday 1 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

48 of 48 minutes covered

Midday of Thursday 2 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

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 07:07 on Wed 1 Apr to 07:42 on Thu 2 Apr.

    2026-04-01T01:36:44Z → 2026-04-02T02:11:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 1st, 12:07–12:55 on the 2nd.

    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 1st and 0 of 48 on the 2nd.

    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 15882 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Ujjain, 2026: Wednesday 1 April.

    confidence: determinate

Say it like this

In Ujjain, Caitrī Pūrṇimā 2026 falls on Wednesday 1 April. Pūrṇimā runs from 07:07 on Wed 1 Apr to 07:42 on Thu 2 Apr and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2026/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 1 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 1 Apr
compat-drikpanchangComparison profileWed 1 Apr
No institution has a recorded ruling for Ujjain.

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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles18:37 → 19:1212:3348 min12:330 min1 Apr
Chicago20:37 → 21:1212:3148 min12:300 min1 Apr
Jersey City21:37 → 22:1212:3648 min12:360 min1 Apr
Port of Spain21:37 → 22:1211:4648 min11:460 min1 Apr
London02:37 → 03:1212:4148 min12:410 min1 Apr
Durban03:37 → 04:1211:3648 min11:350 min1 Apr
Dubai05:37 → 06:1211:5948 min11:590 min1 Apr
Delhi07:07 → 07:4212:0148 min12:010 min1 Apr
Kolkata07:07 → 07:4211:1748 min11:160 min1 Apr
Singapore09:37 → 10:1212:4548 min12:440 min1 Apr
Sydney12:37 → 13:1212:3546 min12:3537 min2 Apr
Suva13:37 → 14:1211:460 min11:4648 min2 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