Ruling · Guru Pūrṇimā · 2099

Thursday 2 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 576 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 Wednesday 1 July

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

0 of 48 minutes covered

Midday of Thursday 2 July

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

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 22:38 on Wed 1 Jul to 22:23 on Thu 2 Jul.

    2099-07-01T14:38:28Z → 2099-07-02T14:23:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 1st, 11:59–12:47 on the 2nd.

    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 1st and 48 of 48 on the 2nd.

    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 34585 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 2099: Thursday 2 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 2099 falls on Thursday 2 July. Pūrṇimā runs from 22:38 on Wed 1 Jul to 22:23 on Thu 2 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2099/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 2 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 2 Jul
compat-drikpanchangComparison profileThu 2 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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles07:38 → 07:2312:3348 min12:340 min1 Jul
Chicago09:38 → 09:2312:3148 min12:310 min1 Jul
Jersey City10:38 → 10:2312:3748 min12:370 min1 Jul
Port of Spain10:38 → 10:2311:4748 min11:470 min1 Jul
London15:38 → 15:2312:410 min12:4148 min2 Jul
Durban16:38 → 16:2311:360 min11:3748 min2 Jul
Dubai18:38 → 18:2311:590 min11:5948 min2 Jul
Delhi20:08 → 19:5312:010 min12:0248 min2 Jul
Kolkata20:08 → 19:5311:170 min11:1748 min2 Jul
Singapore22:38 → 22:2312:450 min12:4548 min2 Jul
Sydney00:38 → 00:2311:360 min11:3648 min2 Jul
Suva02:38 → 02:2311:470 min11:4748 min2 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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