Ruling · Guru Pūrṇimā · 2084

Monday 17 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 432 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 Monday 17 July

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

48 of 48 minutes covered

Midday of Tuesday 18 July

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

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 04:48 on Mon 17 Jul to 01:03 on Tue 18 Jul.

    2084-07-16T20:48:10Z → 2084-07-17T17:03:05Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 17th, 12:01–12:49 on the 18th.

    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 17th and 0 of 48 on the 18th.

    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 25944 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 2084: Monday 17 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 2084 falls on Monday 17 July. Pūrṇimā runs from 04:48 on Mon 17 Jul to 01:03 on Tue 18 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2084/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 17 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 17 Jul
compat-drikpanchangComparison profileMon 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles13:48 → 10:0312:350 min12:350 min17 Jul
Chicago15:48 → 12:0312:330 min12:330 min17 Jul
Jersey City16:48 → 13:0312:390 min12:3924 min17 Jul
Port of Spain16:48 → 13:0311:490 min11:4948 min17 Jul
London21:48 → 18:0312:430 min12:4348 min17 Jul
Durban22:48 → 19:0311:390 min11:3948 min17 Jul
Dubai00:48 → 21:0312:010 min12:0148 min17 Jul
Delhi02:18 → 22:3312:040 min12:0448 min17 Jul
Kolkata02:18 → 22:3311:190 min11:1948 min17 Jul
Singapore04:48 → 01:0312:470 min12:4748 min17 Jul
Sydney06:48 → 03:0311:380 min11:3848 min17 Jul
Suva08:48 → 05:0311:490 min11:4948 min17 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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