Ruling · Guru Pūrṇimā · 1938

Tuesday 12 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 471 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 Monday 11 July

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

0 of 48 minutes covered

Midday of Tuesday 12 July

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

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 20:38 on Mon 11 Jul to 23:05 on Tue 12 Jul.

    1938-07-11T12:37:55Z → 1938-07-12T15:04:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 11th, 11:59–12:47 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 28243 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1938: Tuesday 12 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1938 falls on Tuesday 12 July. Pūrṇimā runs from 20:38 on Mon 11 Jul to 23:05 on Tue 12 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1938/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 12 Jul
compat-drikpanchangComparison profileTue 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles04:38 → 07:0511:3448 min11:340 min11 Jul
Chicago07:38 → 10:0512:3248 min12:320 min11 Jul
Jersey City08:38 → 11:0512:3748 min12:380 min11 Jul
Port of Spain08:38 → 11:0511:4748 min11:470 min11 Jul
London13:38 → 16:0512:410 min12:4248 min12 Jul
Durban14:38 → 17:0511:370 min11:3748 min12 Jul
Dubai16:38 → 19:0512:000 min12:0048 min12 Jul
Delhi18:08 → 20:3512:020 min12:0248 min12 Jul
Kolkata18:08 → 20:3511:180 min11:1848 min12 Jul
Singapore19:58 → 22:2512:060 min12:0648 min12 Jul
Sydney22:38 → 01:0511:360 min11:3748 min12 Jul
Suva00:38 → 03:0511:480 min11:4848 min12 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