Ruling · Guru Pūrṇimā · 1930

Thursday 10 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 478 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 10 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 11 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 02:14 on Thu 10 Jul to 04:01 on Fri 11 Jul.

    1930-07-09T18:13:38Z → 1930-07-10T20:00:59Z

  2. 02

    Kāla

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

    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 10th and 0 of 48 on the 11th.

    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 28691 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1930: Thursday 10 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1930 falls on Thursday 10 July. Pūrṇimā runs from 02:14 on Thu 10 Jul to 04:01 on Fri 11 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1930/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 10 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 10 Jul
compat-drikpanchangComparison profileThu 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles10:14 → 12:0111:3448 min11:3427 min10 Jul
Chicago13:14 → 15:0112:316 min12:3248 min10 Jul
Jersey City14:14 → 16:0112:370 min12:3748 min10 Jul
Port of Spain14:14 → 16:0111:470 min11:4748 min10 Jul
London19:14 → 21:0112:410 min12:4148 min10 Jul
Durban20:14 → 22:0111:370 min11:3748 min10 Jul
Dubai22:14 → 00:0112:000 min12:0048 min10 Jul
Delhi23:44 → 01:3112:020 min12:0248 min10 Jul
Kolkata23:44 → 01:3111:170 min11:1848 min10 Jul
Singapore01:14 → 03:0111:450 min11:4648 min10 Jul
Sydney04:14 → 06:0111:360 min11:3648 min10 Jul
Suva06:14 → 08:0111:470 min11:4748 min10 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