Ruling · Guru Pūrṇimā · 1910

Friday 22 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 225 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 21 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 22 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 16:33 on Thu 21 Jul to 16:37 on Fri 22 Jul.

    1910-07-21T08:32:34Z → 1910-07-22T08:36:40Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 21st, 12:00–12:48 on the 22nd.

    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 21st and 48 of 48 on the 22nd.

    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 13470 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1910: Friday 22 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1910 falls on Friday 22 July. Pūrṇimā runs from 16:33 on Thu 21 Jul to 16:37 on Fri 22 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1910/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 22 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 22 Jul
compat-drikpanchangComparison profileFri 22 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles00:33 → 00:3711:3548 min11:350 min21 Jul
Chicago02:33 → 02:3711:3348 min11:330 min21 Jul
Jersey City03:33 → 03:3711:3848 min11:380 min21 Jul
Port of Spain04:33 → 04:3711:4848 min11:480 min21 Jul
London08:33 → 08:3711:4248 min11:420 min21 Jul
Durban10:33 → 10:3711:3848 min11:380 min21 Jul
Dubai12:14 → 12:1811:4216 min11:4236 min22 Jul
Delhi14:03 → 14:0712:030 min12:0348 min22 Jul
Kolkata14:03 → 14:0711:190 min11:1948 min22 Jul
Singapore15:33 → 15:3711:470 min11:4748 min22 Jul
Sydney18:33 → 18:3711:370 min11:3748 min22 Jul
Suva20:28 → 20:3211:430 min11:4448 min22 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

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