Ruling · Guru Pūrṇimā · 2051

Sunday 23 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 603 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 Sunday 23 July

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

48 of 48 minutes covered

Midday of Monday 24 July

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

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 01:58 on Sun 23 Jul to 00:37 on Mon 24 Jul.

    2051-07-22T17:57:30Z → 2051-07-23T16:36:33Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 23rd, 12:01–12:49 on the 24th.

    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 23rd and 0 of 48 on the 24th.

    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 36182 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 2051: Sunday 23 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 2051 falls on Sunday 23 July. Pūrṇimā runs from 01:58 on Sun 23 Jul to 00:37 on Mon 24 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2051/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 23 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 23 Jul
compat-drikpanchangComparison profileSun 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 Angeles10:58 → 09:3712:3548 min12:350 min22 Jul
Chicago12:58 → 11:3712:3323 min12:330 min22 Jul
Jersey City13:58 → 12:3712:390 min12:390 min23 Jul
Port of Spain13:58 → 12:3711:490 min11:4948 min23 Jul
London18:58 → 17:3712:430 min12:4348 min23 Jul
Durban19:58 → 18:3711:390 min11:3948 min23 Jul
Dubai21:58 → 20:3712:010 min12:0148 min23 Jul
Delhi23:28 → 22:0712:040 min12:0448 min23 Jul
Kolkata23:28 → 22:0711:190 min11:1948 min23 Jul
Singapore01:58 → 00:3712:470 min12:4748 min23 Jul
Sydney03:58 → 02:3711:380 min11:3848 min23 Jul
Suva05:58 → 04:3711:490 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

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