Ruling · Guru Pūrṇimā · 1983

Sunday 24 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 273 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 24 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 25 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 05:06 on Sun 24 Jul to 07:27 on Mon 25 Jul.

    1983-07-23T21:06:12Z → 1983-07-24T23:26:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 24th, 12:00–12:48 on the 25th.

    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 24th and 0 of 48 on the 25th.

    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 16409 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1983: Sunday 24 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1983 falls on Sunday 24 July. Pūrṇimā runs from 05:06 on Sun 24 Jul to 07:27 on Mon 25 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1983/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 24 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 24 Jul
compat-drikpanchangComparison profileSun 24 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 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles14:06 → 16:2712:350 min12:3548 min24 Jul
Chicago16:06 → 18:2712:330 min12:3348 min24 Jul
Jersey City17:06 → 19:2712:380 min12:3848 min24 Jul
Port of Spain17:06 → 19:2711:480 min11:4848 min24 Jul
London22:06 → 00:2712:420 min12:4248 min24 Jul
Durban23:06 → 01:2711:380 min11:3848 min24 Jul
Dubai01:06 → 03:2712:010 min12:0148 min24 Jul
Delhi02:36 → 04:5712:030 min12:0348 min24 Jul
Kolkata02:36 → 04:5711:190 min11:1948 min24 Jul
Singapore05:06 → 07:2712:470 min12:4748 min24 Jul
Sydney07:06 → 09:2711:380 min11:3848 min24 Jul
Suva09:06 → 11:2711:490 min11:4948 min24 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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