Ruling · Guru Pūrṇimā · 1927

Thursday 14 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 456 minutes.

Decide it for

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 14 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 Friday 15 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 04:23 on Thu 14 Jul to 03:22 on Fri 15 Jul.

    1927-07-13T20:23:24Z → 1927-07-14T19:22:17Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 14th, 12:00–12:48 on the 15th.

    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 14th and 0 of 48 on the 15th.

    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 27367 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1927: Thursday 14 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1927 falls on Thursday 14 July. Pūrṇimā runs from 04:23 on Thu 14 Jul to 03:22 on Fri 15 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1927/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 14 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 14 Jul
compat-drikpanchangComparison profileThu 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles12:23 → 11:2211:340 min11:340 min14 Jul
Chicago15:23 → 14:2212:320 min12:3248 min14 Jul
Jersey City16:23 → 15:2212:380 min12:3848 min14 Jul
Port of Spain16:23 → 15:2211:480 min11:4848 min14 Jul
London21:23 → 20:2212:420 min12:4248 min14 Jul
Durban22:23 → 21:2211:370 min11:3848 min14 Jul
Dubai00:23 → 23:2212:000 min12:0048 min14 Jul
Delhi01:53 → 00:5212:020 min12:0348 min14 Jul
Kolkata01:53 → 00:5211:180 min11:1848 min14 Jul
Singapore03:23 → 02:2211:460 min11:4648 min14 Jul
Sydney06:23 → 05:2211:370 min11:3748 min14 Jul
Suva08:23 → 07:2211:480 min11:4848 min14 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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