Ruling · Caitrī Pūrṇimā · 2020

Wednesday 8 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 81 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 7 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

0 of 48 minutes covered

Midday of Wednesday 8 April

Taken. Pūrṇimā reaches neither midday; the rule takes the second day.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

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 14:32 on Tue 7 Apr to 10:35 on Wed 8 Apr.

    2020-04-07T06:31:51Z → 2020-04-08T02:35:05Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 7th, 11:56–12:44 on the 8th.

    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 7th and 0 of 48 on the 8th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 4873 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2020: Wednesday 8 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2020 falls on Wednesday 8 April. Pūrṇimā runs from 14:32 on Tue 7 Apr to 10:35 on Wed 8 Apr, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2020/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 8 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 8 Apr
compat-drikpanchangComparison profileWed 8 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles23:32 → 19:3512:3148 min12:310 min7 Apr
Chicago01:32 → 21:3512:2948 min12:290 min7 Apr
Jersey City02:32 → 22:3512:3548 min12:340 min7 Apr
Port of Spain02:32 → 22:3511:4448 min11:440 min7 Apr
London07:32 → 03:3512:3948 min12:390 min7 Apr
Durban08:32 → 04:3511:3448 min11:330 min7 Apr
Dubai10:32 → 06:3511:5748 min11:570 min7 Apr
Delhi12:02 → 08:0511:5946 min11:590 min7 Apr
Kolkata12:02 → 08:0511:151 min11:150 min7 Apr
Singapore14:32 → 10:3512:430 min12:420 min8 Apr
Sydney16:32 → 12:3511:330 min11:3348 min8 Apr
Suva18:32 → 14:3511:440 min11:4448 min8 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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