Ruling · Guru Pūrṇimā · 1937

Friday 23 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 416 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 22 July

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

0 of 48 minutes covered

Midday of Friday 23 July

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

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 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul.

    1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 22nd, 12:00–12:48 on the 23rd.

    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 22nd and 48 of 48 on the 23rd.

    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 24947 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1937: Friday 23 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1937 falls on Friday 23 July. Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1937/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 23 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 23 Jul
compat-drikpanchangComparison profileFri 23 Jul
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/guru-purnima · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 102

“S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāMadhyāhna 22ndCoveredMadhyāhna 23rdCoveredRuled
Los Angeles03:44 → 04:4511:3548 min11:350 min22 Jul
Chicago06:44 → 07:4512:3348 min12:330 min22 Jul
Jersey City07:44 → 08:4512:3848 min12:380 min22 Jul
Port of Spain07:44 → 08:4511:4848 min11:480 min22 Jul
London12:44 → 13:4512:4246 min12:4248 min23 Jul
Durban13:44 → 14:4511:380 min11:3848 min23 Jul
Dubai15:44 → 16:4512:010 min12:0148 min23 Jul
Delhi17:14 → 18:1512:030 min12:0348 min23 Jul
Kolkata17:14 → 18:1511:190 min11:1948 min23 Jul
Singapore19:04 → 20:0512:070 min12:0748 min23 Jul
Sydney21:44 → 22:4511:380 min11:3848 min23 Jul
Suva23:44 → 00:4511:490 min11:4948 min23 Jul
Profile · tradition
pac-rp@2026.1 · smarta
Rule
guru-purnima@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa