Ruling · Guru Pūrṇimā · 2098

Sunday 13 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 229 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 Saturday 12 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 Sunday 13 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 16:37 on Sat 12 Jul to 18:37 on Sun 13 Jul.

    2098-07-12T08:36:44Z → 2098-07-13T10:36:59Z

  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 0 of 48 minutes on the 12th and 48 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 13711 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 2098: Sunday 13 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 2098 falls on Sunday 13 July. Pūrṇimā runs from 16:37 on Sat 12 Jul to 18:37 on Sun 13 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2098/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 13 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 13 Jul
compat-drikpanchangComparison profileSun 13 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 Angeles01:37 → 03:3712:3548 min12:350 min12 Jul
Chicago03:37 → 05:3712:3348 min12:330 min12 Jul
Jersey City04:37 → 06:3712:3848 min12:390 min12 Jul
Port of Spain04:37 → 06:3711:4848 min11:480 min12 Jul
London09:37 → 11:3712:4248 min12:430 min12 Jul
Durban10:37 → 12:3711:3848 min11:3848 min13 Jul
Dubai12:37 → 14:3712:0112 min12:0148 min13 Jul
Delhi14:07 → 16:0712:030 min12:0348 min13 Jul
Kolkata14:07 → 16:0711:190 min11:1948 min13 Jul
Singapore16:37 → 18:3712:470 min12:4748 min13 Jul
Sydney18:37 → 20:3711:370 min11:3848 min13 Jul
Suva20:37 → 22:3711:490 min11:4948 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

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