Ruling · Caitrī Pūrṇimā · 1968

Saturday 13 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 8 min 35 s.

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 Friday 12 April

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Saturday 13 April

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
Pūrṇimā ends 12:51:39
11:0711:3111:5512:1912:4313:0713:31

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 16:09 on Fri 12 Apr to 12:52 on Sat 13 Apr.

    1968-04-12T08:09:22Z → 1968-04-13T04:51:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 12th, 11:55–12:43 on the 13th.

    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 12th and 48 of 48 on the 13th.

    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 515 s

  5. 05

    Ruling

    Caitrī Pūrṇimā, Baoding, 1968: Saturday 13 April.

    confidence: determinate

Say it like this

In Baoding, Caitrī Pūrṇimā 1968 falls on Saturday 13 April. Pūrṇimā runs from 16:09 on Fri 12 Apr to 12:52 on Sat 13 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1968/chaitri-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 13 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 13 Apr
compat-drikpanchangComparison profileSat 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles00:09 → 20:5211:3048 min11:300 min12 Apr
Chicago02:09 → 22:5211:2848 min11:270 min12 Apr
Jersey City03:09 → 23:5211:3348 min11:330 min12 Apr
Port of Spain04:09 → 00:5211:4348 min11:430 min12 Apr
London09:09 → 05:5212:3848 min12:380 min12 Apr
Durban10:09 → 06:5211:3248 min11:320 min12 Apr
Dubai12:09 → 08:5211:5634 min11:550 min12 Apr
Delhi13:39 → 10:2211:580 min11:580 min13 Apr
Kolkata13:39 → 10:2211:140 min11:130 min13 Apr
Singapore15:39 → 12:2212:110 min12:1110 min13 Apr
Sydney18:09 → 14:5211:320 min11:3248 min13 Apr
Suva20:09 → 16:5211:430 min11:4348 min13 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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