Ruling · Māghī Pūrṇimā · 1999

Sunday 31 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 642 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 Sunday 31 January

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

48 of 48 minutes covered

Midday of Monday 1 February

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

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 01:26 on Sun 31 Jan to 00:07 on Mon 1 Feb.

    1999-01-30T17:25:45Z → 1999-01-31T16:06:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 31st, 12:08–12:56 on the 1st.

    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 31st and 0 of 48 on the 1st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 38516 s

  5. 05

    Ruling

    Māghī Pūrṇimā, Baoding, 1999: Sunday 31 January.

    confidence: determinate

Say it like this

In Baoding, Māghī Pūrṇimā 1999 falls on Sunday 31 January. Pūrṇimā runs from 01:26 on Sun 31 Jan to 00:07 on Mon 1 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1999/maghi-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 31 Jan
Ahargaṇa, classicalDisc centre, no refractionSun 31 Jan
compat-drikpanchangComparison profileSun 31 Jan
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/maghi-purnima · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 105

“S 15 Maghi purnima (paraviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāMadhyāhna 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles09:26 → 08:0711:4248 min11:430 min30 Jan
Chicago11:26 → 10:0711:4048 min11:400 min30 Jan
Jersey City12:26 → 11:0711:468 min11:460 min30 Jan
Port of Spain13:26 → 12:0711:550 min11:5611 min31 Jan
London17:26 → 16:0711:500 min11:5048 min31 Jan
Durban19:26 → 18:0711:450 min11:4548 min31 Jan
Dubai21:26 → 20:0712:080 min12:0848 min31 Jan
Delhi22:56 → 21:3712:100 min12:1148 min31 Jan
Kolkata22:56 → 21:3711:260 min11:2648 min31 Jan
Singapore01:26 → 00:0712:540 min12:5448 min31 Jan
Sydney04:26 → 03:0712:440 min12:4448 min31 Jan
Suva06:26 → 05:0712:550 min12:5548 min31 Jan
Profile · tradition
pac-rp@2026.1 · smarta
Rule
maghi-purnima@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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