Ruling · Caitrī Pūrṇimā · 2000

Tuesday 18 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 612 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 18 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

48 of 48 minutes covered

Midday of Wednesday 19 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

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 01:41 on Tue 18 Apr to 01:42 on Wed 19 Apr.

    2000-04-17T17:40:48Z → 2000-04-18T17:41:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 18th, 11:54–12:42 on the 19th.

    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 18th and 0 of 48 on the 19th.

    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 36725 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2000: Tuesday 18 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2000 falls on Tuesday 18 April. Pūrṇimā runs from 01:41 on Tue 18 Apr to 01:42 on Wed 19 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2000/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 18 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 18 Apr
compat-drikpanchangComparison profileTue 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles10:41 → 10:4212:2948 min12:280 min17 Apr
Chicago12:41 → 12:4212:2634 min12:2615 min18 Apr
Jersey City13:41 → 13:4212:320 min12:3248 min18 Apr
Port of Spain13:41 → 13:4211:420 min11:4148 min18 Apr
London18:41 → 18:4212:370 min12:3648 min18 Apr
Durban19:41 → 19:4211:310 min11:3148 min18 Apr
Dubai21:41 → 21:4211:540 min11:5448 min18 Apr
Delhi23:11 → 23:1211:570 min11:5748 min18 Apr
Kolkata23:11 → 23:1211:120 min11:1248 min18 Apr
Singapore01:41 → 01:4212:400 min12:4048 min18 Apr
Sydney03:41 → 03:4211:310 min11:3048 min18 Apr
Suva05:41 → 05:4211:420 min11:4248 min18 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

About Ahargaṇa