Ruling · Caitrī Pūrṇimā · 1991

Saturday 30 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 150 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 29 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

Midday of Saturday 30 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

Pūrṇimā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 15:52 on Fri 29 Mar to 15:17 on Sat 30 Mar.

    1991-03-29T07:52:04Z → 1991-03-30T07:17:23Z

  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 0 of 48 minutes on the 29th and 48 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 9012 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1991: Saturday 30 March.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1991 falls on Saturday 30 March. Pūrṇimā runs from 15:52 on Fri 29 Mar to 15:17 on Sat 30 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1991/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 30 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 30 Mar
compat-drikpanchangComparison profileSat 30 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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles23:52 → 23:1711:3448 min11:340 min29 Mar
Chicago01:52 → 01:1711:3248 min11:310 min29 Mar
Jersey City02:52 → 02:1711:3848 min11:370 min29 Mar
Port of Spain03:52 → 03:1711:4748 min11:470 min29 Mar
London07:52 → 07:1711:4248 min11:420 min29 Mar
Durban09:52 → 09:1711:3748 min11:360 min29 Mar
Dubai11:52 → 11:1712:0048 min12:000 min29 Mar
Delhi13:22 → 12:4712:020 min12:0245 min30 Mar
Kolkata13:22 → 12:4711:180 min11:1748 min30 Mar
Singapore15:52 → 15:1712:460 min12:4548 min30 Mar
Sydney17:52 → 17:1711:360 min11:3648 min30 Mar
Suva19:52 → 19:1711:470 min11:4748 min30 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

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