Ruling · Guru Pūrṇimā · 1984

Thursday 12 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 100 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 12 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 13 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 10:01 on Thu 12 Jul to 10:20 on Fri 13 Jul.

    1984-07-12T02:00:57Z → 1984-07-13T02:19:44Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 12th, 12:00–12:48 on the 13th.

    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 12th and 0 of 48 on the 13th.

    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 5995 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1984: Thursday 12 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1984 falls on Thursday 12 July. Pūrṇimā runs from 10:01 on Thu 12 Jul to 10:20 on Fri 13 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1984/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 12 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 12 Jul
compat-drikpanchangComparison profileThu 12 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles19:01 → 19:2012:3448 min12:350 min12 Jul
Chicago21:01 → 21:2012:3248 min12:320 min12 Jul
Jersey City22:01 → 22:2012:3848 min12:380 min12 Jul
Port of Spain22:01 → 22:2011:4848 min11:480 min12 Jul
London03:01 → 03:2012:4248 min12:420 min12 Jul
Durban04:01 → 04:2011:3848 min11:380 min12 Jul
Dubai06:01 → 06:2012:0048 min12:000 min12 Jul
Delhi07:31 → 07:5012:0348 min12:030 min12 Jul
Kolkata07:31 → 07:5011:1848 min11:180 min12 Jul
Singapore10:01 → 10:2012:4648 min12:460 min12 Jul
Sydney12:01 → 12:2011:3724 min11:3743 min13 Jul
Suva14:01 → 14:2011:480 min11:4848 min13 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