Ruling · Guru Pūrṇimā · 1948

Tuesday 20 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 89 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 Tuesday 20 July

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 13:00  13:48 madhyāhna ends
12:1212:3613:0013:2413:4814:1214:36

48 of 48 minutes covered

Midday of Wednesday 21 July

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 13:00  13:48 madhyāhna ends
12:1212:3613:0013:2413:4814:1214:36

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 09:50 on Tue 20 Jul to 11:31 on Wed 21 Jul.

    1948-07-20T00:50:06Z → 1948-07-21T02:31:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 13:00–13:48 on the 20th, 13:00–13:48 on the 21st.

    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 20th and 0 of 48 on the 21st.

    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 5349 s

  5. 05

    Ruling

    Guru Pūrṇimā, Baoding, 1948: Tuesday 20 July.

    confidence: determinate

Say it like this

In Baoding, Guru Pūrṇimā 1948 falls on Tuesday 20 July. Pūrṇimā runs from 09:50 on Tue 20 Jul to 11:31 on Wed 21 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1948/guru-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 20 Jul
compat-drikpanchangComparison profileTue 20 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles17:50 → 19:3112:3548 min12:350 min20 Jul
Chicago19:50 → 21:3112:3348 min12:330 min20 Jul
Jersey City20:50 → 22:3112:3848 min12:380 min20 Jul
Port of Spain20:50 → 22:3111:4848 min11:480 min20 Jul
London01:50 → 03:3112:4248 min12:420 min20 Jul
Durban02:50 → 04:3111:3848 min11:380 min20 Jul
Dubai04:50 → 06:3112:0148 min12:010 min20 Jul
Delhi06:20 → 08:0112:0348 min12:030 min20 Jul
Kolkata06:20 → 08:0111:1948 min11:190 min20 Jul
Singapore08:20 → 10:0112:1748 min12:170 min20 Jul
Sydney10:50 → 12:3111:3748 min11:3848 min21 Jul
Suva12:50 → 14:3111:490 min11:4948 min21 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