Ruling · Caitrī Pūrṇimā · 1972

Wednesday 29 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 474 minutes.

Decide it for

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 Wednesday 29 March

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

48 of 48 minutes covered

Midday of Thursday 30 March

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

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 02:05 on Wed 29 Mar to 04:05 on Thu 30 Mar.

    1972-03-28T18:04:50Z → 1972-03-29T20:05:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 29th, 11:59–12:47 on the 30th.

    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 29th and 0 of 48 on the 30th.

    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 28413 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1972: Wednesday 29 March.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1972 falls on Wednesday 29 March. Pūrṇimā runs from 02:05 on Wed 29 Mar to 04:05 on Thu 30 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1972/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 29 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 29 Mar
compat-drikpanchangComparison profileWed 29 Mar
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 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles10:05 → 12:0511:3448 min11:3432 min29 Mar
Chicago12:05 → 14:0511:3215 min11:3248 min29 Mar
Jersey City13:05 → 15:0511:380 min11:3748 min29 Mar
Port of Spain14:05 → 16:0511:470 min11:4748 min29 Mar
London19:05 → 21:0512:420 min12:4248 min29 Mar
Durban20:05 → 22:0511:370 min11:3648 min29 Mar
Dubai22:05 → 00:0512:000 min12:0048 min29 Mar
Delhi23:35 → 01:3512:020 min12:0248 min29 Mar
Kolkata23:35 → 01:3511:180 min11:1848 min29 Mar
Singapore01:35 → 03:3512:160 min12:1548 min29 Mar
Sydney04:05 → 06:0511:360 min11:3648 min29 Mar
Suva06:05 → 08:0511:470 min11:4748 min29 Mar
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

About Ahargaṇa