Ruling · Caitrī Pūrṇimā · 2013

Thursday 25 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 318 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 Thursday 25 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

48 of 48 minutes covered

Midday of Friday 26 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 06:34 on Thu 25 Apr to 03:57 on Fri 26 Apr.

    2013-04-24T22:34:19Z → 2013-04-25T19:57:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 25th, 11:52–12:40 on the 26th.

    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 25th and 0 of 48 on the 26th.

    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 19087 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 2013: Thursday 25 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 2013 falls on Thursday 25 April. Pūrṇimā runs from 06:34 on Thu 25 Apr to 03:57 on Fri 26 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2013/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 25 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 25 Apr
compat-drikpanchangComparison profileThu 25 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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles15:34 → 12:5712:270 min12:2730 min25 Apr
Chicago17:34 → 14:5712:250 min12:2548 min25 Apr
Jersey City18:34 → 15:5712:310 min12:3148 min25 Apr
Port of Spain18:34 → 15:5711:400 min11:4048 min25 Apr
London23:34 → 20:5712:350 min12:3548 min25 Apr
Durban00:34 → 21:5711:300 min11:3048 min25 Apr
Dubai02:34 → 23:5711:530 min11:5348 min25 Apr
Delhi04:04 → 01:2711:550 min11:5548 min25 Apr
Kolkata04:04 → 01:2711:110 min11:1148 min25 Apr
Singapore06:34 → 03:5712:390 min12:3948 min25 Apr
Sydney08:34 → 05:5711:290 min11:2948 min25 Apr
Suva10:34 → 07:5711:400 min11:4048 min25 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