Ruling · Caitrī Pūrṇimā · 2002

Saturday 27 April

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 14 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Friday 26 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:14  12:02 madhyāhna ends
10:2610:5011:1411:3812:0212:2612:50

0 of 48 minutes covered

Midday of Saturday 27 April

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

madhyāhna begins 11:14  12:02 madhyāhna ends
Pūrṇimā ends 10:59:55
10:2610:5011:1411:3812:0212:2612:50

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 14:25 on Fri 26 Apr to 11:00 on Sat 27 Apr.

    2002-04-26T06:24:58Z → 2002-04-27T02:59:55Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 26th, 11:14–12:02 on the 27th.

    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 26th and 0 of 48 on the 27th.

    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 853 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Daqing, 2002: Saturday 27 April.

    confidence: determinate

Say it like this

In Daqing, Caitrī Pūrṇimā 2002 falls on Saturday 27 April. Pūrṇimā runs from 14:25 on Fri 26 Apr to 11:00 on Sat 27 Apr, and reaches madhyāhna on neither day.

ahargana.org/daqing/festivals/2002/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 27 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 27 Apr
compat-drikpanchangComparison profileSat 27 Apr
No institution has a recorded ruling for Daqing.

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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles23:25 → 20:0012:2748 min12:270 min26 Apr
Chicago01:25 → 22:0012:2548 min12:250 min26 Apr
Jersey City02:25 → 23:0012:3048 min12:300 min26 Apr
Port of Spain02:25 → 23:0011:4048 min11:400 min26 Apr
London07:25 → 04:0012:3548 min12:350 min26 Apr
Durban08:25 → 05:0011:3048 min11:290 min26 Apr
Dubai10:25 → 07:0011:5348 min11:530 min26 Apr
Delhi11:55 → 08:3011:5548 min11:550 min26 Apr
Kolkata11:55 → 08:3011:114 min11:100 min26 Apr
Singapore14:25 → 11:0012:380 min12:380 min27 Apr
Sydney16:25 → 13:0011:290 min11:2948 min27 Apr
Suva18:25 → 15:0011:400 min11:4048 min27 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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