Ruling · Guru Pūrṇimā · 2058

Saturday 6 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 72 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 Friday 5 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 Saturday 6 July

Taken. Pūrṇimā reaches neither midday; the rule takes the second day.

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

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 14:22 on Fri 5 Jul to 10:47 on Sat 6 Jul.

    2058-07-05T06:22:20Z → 2058-07-06T02:47:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 5th, 11:59–12:47 on the 6th.

    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 5th and 0 of 48 on the 6th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 4308 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 2058: Saturday 6 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 2058 falls on Saturday 6 July. Pūrṇimā runs from 14:22 on Fri 5 Jul to 10:47 on Sat 6 Jul, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2058/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 6 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 6 Jul
compat-drikpanchangComparison profileSat 6 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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles23:22 → 19:4712:3448 min12:340 min5 Jul
Chicago01:22 → 21:4712:3148 min12:320 min5 Jul
Jersey City02:22 → 22:4712:3748 min12:370 min5 Jul
Port of Spain02:22 → 22:4711:4748 min11:470 min5 Jul
London07:22 → 03:4712:4148 min12:410 min5 Jul
Durban08:22 → 04:4711:3748 min11:370 min5 Jul
Dubai10:22 → 06:4712:0048 min12:000 min5 Jul
Delhi11:52 → 08:1712:0248 min12:020 min5 Jul
Kolkata11:52 → 08:1711:1713 min11:170 min5 Jul
Singapore14:22 → 10:4712:450 min12:460 min6 Jul
Sydney16:22 → 12:4711:360 min11:3648 min6 Jul
Suva18:22 → 14:4711:470 min11:4748 min6 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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