Ruling · Guru Pūrṇimā · 2010

Sunday 25 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 144 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 25 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

Midday of Monday 26 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

Pūrṇimā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 07:42 on Sun 25 Jul to 09:37 on Mon 26 Jul.

    2010-07-24T23:42:13Z → 2010-07-26T01:36:33Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 25th, 12:00–12:48 on the 26th.

    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 25th and 0 of 48 on the 26th.

    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 8633 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 2010: Sunday 25 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 2010 falls on Sunday 25 July. Pūrṇimā runs from 07:42 on Sun 25 Jul to 09:37 on Mon 26 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2010/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 25 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 25 Jul
compat-drikpanchangComparison profileSun 25 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 24thCoveredMadhyāhna 26thCoveredRuled
Los Angeles16:42 → 18:3712:350 min12:350 min25 Jul
Chicago18:42 → 20:3712:330 min12:330 min25 Jul
Jersey City19:42 → 21:3712:390 min12:390 min25 Jul
Port of Spain19:42 → 21:3711:490 min11:490 min25 Jul
London00:42 → 02:3712:430 min12:430 min25 Jul
Durban01:42 → 03:3711:390 min11:390 min25 Jul
Dubai03:42 → 05:3712:010 min12:010 min25 Jul
Delhi05:12 → 07:0712:030 min12:030 min25 Jul
Kolkata05:12 → 07:0711:190 min11:190 min25 Jul
Singapore07:42 → 09:3712:470 min12:470 min25 Jul
Sydney09:42 → 11:3711:380 min11:380 min25 Jul
Suva11:42 → 13:3711:490 min11:4948 min26 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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