Ruling · Guru Pūrṇimā · 2080

Tuesday 2 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 12 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 1 July

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

48 of 48 minutes covered

Midday of Tuesday 2 July

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:59  12:47 madhyāhna ends
Pūrṇimā ends 12:10:08
11:1111:3511:5912:2312:4713:1113:35

12 of 48 minutes covered, the first 12

Pūrṇimā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul.

    2080-07-01T02:05:08Z → 2080-07-02T04:10:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 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 48 of 48 minutes on the 1st and 12 of 48 on the 2nd.

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

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 692 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 2080: Tuesday 2 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 2080 falls on Tuesday 2 July. Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul and covers 12 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/baoding/festivals/2080/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 2 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 2 Jul
compat-drikpanchangComparison profileTue 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 Angeles19:05 → 21:1012:3348 min12:340 min1 Jul
Chicago21:05 → 23:1012:3148 min12:310 min1 Jul
Jersey City22:05 → 00:1012:3748 min12:370 min1 Jul
Port of Spain22:05 → 00:1011:4748 min11:470 min1 Jul
London03:05 → 05:1012:4148 min12:410 min1 Jul
Durban04:05 → 06:1011:3648 min11:370 min1 Jul
Dubai06:05 → 08:1011:5948 min11:590 min1 Jul
Delhi07:35 → 09:4012:0148 min12:020 min1 Jul
Kolkata07:35 → 09:4011:1748 min11:170 min1 Jul
Singapore10:05 → 12:1012:4548 min12:450 min1 Jul
Sydney12:05 → 14:1011:3618 min11:3648 min2 Jul
Suva14:05 → 16:1011:470 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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