Ruling · Māghī Pūrṇimā · 2018

Wednesday 31 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 511 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 30 January

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

Midday of Wednesday 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

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 00:53 on Wed 31 Jan to 21:27 on Wed 31 Jan.

    2018-01-30T16:53:08Z → 2018-01-31T13:26:44Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 30th, 12:08–12:56 on the 31st.

    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 30th and 48 of 48 on the 31st.

    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 30659 s

  5. 05

    Ruling

    Māghī Pūrṇimā, Baoding, 2018: Wednesday 31 January.

    confidence: determinate

Say it like this

In Baoding, Māghī Pūrṇimā 2018 falls on Wednesday 31 January. Pūrṇimā runs from 00:53 on Wed 31 Jan to 21:27 on Wed 31 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2018/maghi-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 31 Jan
Ahargaṇa, classicalDisc centre, no refractionWed 31 Jan
compat-drikpanchangComparison profileWed 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 Angeles08:53 → 05:2711:4248 min11:430 min30 Jan
Chicago10:53 → 07:2711:4048 min11:400 min30 Jan
Jersey City11:53 → 08:2711:4641 min11:460 min30 Jan
Port of Spain12:53 → 09:2711:550 min11:560 min31 Jan
London16:53 → 13:2711:500 min11:5048 min31 Jan
Durban18:53 → 15:2711:450 min11:4548 min31 Jan
Dubai20:53 → 17:2712:080 min12:0848 min31 Jan
Delhi22:23 → 18:5712:100 min12:1148 min31 Jan
Kolkata22:23 → 18:5711:260 min11:2648 min31 Jan
Singapore00:53 → 21:2712:540 min12:5448 min31 Jan
Sydney03:53 → 00:2712:440 min12:4448 min31 Jan
Suva04:53 → 01:2711:550 min11:5648 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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