Ruling · Guru Pūrṇimā · 1903

Thursday 9 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 616 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 9 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

Midday of Friday 10 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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 23:30 on Wed 8 Jul to 01:43 on Fri 10 Jul.

    1903-07-08T15:29:54Z → 1903-07-09T17:43:05Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 9th, 11:59–12:47 on the 10th.

    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 9th and 0 of 48 on the 10th.

    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 36950 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1903: Thursday 9 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1903 falls on Thursday 9 July. Pūrṇimā runs from 23:30 on Wed 8 Jul to 01:43 on Fri 10 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1903/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 9 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 9 Jul
compat-drikpanchangComparison profileThu 9 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles07:30 → 09:4311:3448 min11:340 min8 Jul
Chicago09:30 → 11:4311:3148 min11:3112 min9 Jul
Jersey City10:30 → 12:4311:3748 min11:3748 min9 Jul
Port of Spain11:30 → 13:4311:4748 min11:4748 min9 Jul
London15:30 → 17:4311:410 min11:4148 min9 Jul
Durban17:30 → 19:4311:370 min11:3748 min9 Jul
Dubai19:11 → 21:2411:400 min11:4048 min9 Jul
Delhi20:51 → 23:0411:530 min11:5348 min9 Jul
Kolkata20:51 → 23:0411:080 min11:0848 min9 Jul
Singapore22:25 → 00:3811:400 min11:4048 min9 Jul
Sydney01:30 → 03:4311:360 min11:3648 min9 Jul
Suva03:25 → 05:3811:420 min11:4248 min9 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