Ruling · Guru Pūrṇimā · 1964

Friday 24 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 560 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 23 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

Midday of Friday 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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 22:08 on Thu 23 Jul to 23:58 on Fri 24 Jul.

    1964-07-23T14:08:01Z → 1964-07-24T15:57:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 23rd, 12:00–12:48 on the 24th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.

    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 33583 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1964: Friday 24 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1964 falls on Friday 24 July. Pūrṇimā runs from 22:08 on Thu 23 Jul to 23:58 on Fri 24 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1964/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 24 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 24 Jul
compat-drikpanchangComparison profileFri 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 Angeles07:08 → 08:5812:3548 min12:350 min23 Jul
Chicago09:08 → 10:5812:3348 min12:330 min23 Jul
Jersey City10:08 → 11:5812:3848 min12:380 min23 Jul
Port of Spain10:08 → 11:5811:4848 min11:489 min24 Jul
London15:08 → 16:5812:420 min12:4248 min24 Jul
Durban16:08 → 17:5811:380 min11:3848 min24 Jul
Dubai18:08 → 19:5812:010 min12:0148 min24 Jul
Delhi19:38 → 21:2812:030 min12:0348 min24 Jul
Kolkata19:38 → 21:2811:190 min11:1948 min24 Jul
Singapore21:38 → 23:2812:170 min12:1748 min24 Jul
Sydney00:08 → 01:5811:380 min11:3848 min24 Jul
Suva02:08 → 03:5811:490 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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