Ruling · Caitrī Pūrṇimā · 1915

Wednesday 31 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 50 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 Tuesday 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

Midday of Wednesday 31 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 16:29 on Tue 30 Mar to 13:37 on Wed 31 Mar.

    1915-03-30T08:28:38Z → 1915-03-31T05:37:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 30th, 11:59–12:47 on the 31st.

    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 30th and 48 of 48 on the 31st.

    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 3015 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1915: Wednesday 31 March.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1915 falls on Wednesday 31 March. Pūrṇimā runs from 16:29 on Tue 30 Mar to 13:37 on Wed 31 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1915/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 31 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 31 Mar
compat-drikpanchangComparison profileWed 31 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 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles00:29 → 21:3711:3448 min11:340 min30 Mar
Chicago02:29 → 23:3711:3248 min11:310 min30 Mar
Jersey City03:29 → 00:3711:3748 min11:370 min30 Mar
Port of Spain04:29 → 01:3711:4748 min11:470 min30 Mar
London08:29 → 05:3711:4248 min11:420 min30 Mar
Durban10:29 → 07:3711:3748 min11:360 min30 Mar
Dubai12:10 → 09:1811:4119 min11:410 min30 Mar
Delhi13:59 → 11:0712:020 min12:020 min31 Mar
Kolkata13:59 → 11:0711:180 min11:170 min31 Mar
Singapore15:29 → 12:3711:460 min11:4548 min31 Mar
Sydney18:29 → 15:3711:360 min11:3648 min31 Mar
Suva20:24 → 17:3211:420 min11:4248 min31 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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