Ruling · Guru Pūrṇimā · 2090

Tuesday 11 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 656 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 Tuesday 11 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 Wednesday 12 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 00:33 on Tue 11 Jul to 01:04 on Wed 12 Jul.

    2090-07-10T16:33:05Z → 2090-07-11T17:04:12Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 11th, 12:00–12:48 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 48 of 48 minutes on the 11th and 0 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 39355 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 2090: Tuesday 11 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 2090 falls on Tuesday 11 July. Pūrṇimā runs from 00:33 on Tue 11 Jul to 01:04 on Wed 12 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2090/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 11 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 11 Jul
compat-drikpanchangComparison profileTue 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles09:33 → 10:0412:3548 min12:350 min10 Jul
Chicago11:33 → 12:0412:3248 min12:320 min10 Jul
Jersey City12:33 → 13:0412:3848 min12:3826 min11 Jul
Port of Spain12:33 → 13:0411:483 min11:4848 min11 Jul
London17:33 → 18:0412:420 min12:4248 min11 Jul
Durban18:33 → 19:0411:380 min11:3848 min11 Jul
Dubai20:33 → 21:0412:010 min12:0148 min11 Jul
Delhi22:03 → 22:3412:030 min12:0348 min11 Jul
Kolkata22:03 → 22:3411:180 min11:1948 min11 Jul
Singapore00:33 → 01:0412:460 min12:4748 min11 Jul
Sydney02:33 → 03:0411:370 min11:3748 min11 Jul
Suva04:33 → 05:0411:480 min11:4848 min11 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