Ruling · Vasanta Pañcamī (Basant Panchami) · 2020

Thursday 30 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 21 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 Wednesday 29 January

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:07  12:55 madhyāhna ends
Pañcamī begins 13:16:14
11:1911:4312:0712:3112:5513:1913:43

0 of 48 minutes covered

Midday of Thursday 30 January

Taken. The only midday Pañcamī reaches.

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

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Pañcamī runs from 13:16 on Wed 29 Jan to 15:50 on Thu 30 Jan.

    2020-01-29T05:16:14Z → 2020-01-30T07:49:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 29th, 12:08–12:56 on the 30th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.

    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: unstated → only-day · margin 1255 s

  5. 05

    Ruling

    Vasanta Pañcamī, Baoding, 2020: Thursday 30 January.

    confidence: determinate

Say it like this

In Baoding, Vasanta Pañcamī (Basant Panchami) 2020 falls on Thursday 30 January. Pañcamī runs from 13:16 on Wed 29 Jan to 15:50 on Thu 30 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2020/vasanta-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 30 Jan
Ahargaṇa, classicalDisc centre, no refractionThu 30 Jan
compat-drikpanchangComparison profileThu 30 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/vasanta-panchami · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Pañcamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePañcamīMadhyāhna 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles21:16 → 23:5011:4248 min11:420 min29 Jan
Chicago23:16 → 01:5011:4048 min11:400 min29 Jan
Jersey City00:16 → 02:5011:4648 min11:460 min29 Jan
Port of Spain01:16 → 03:5011:5548 min11:550 min29 Jan
London05:16 → 07:5011:5048 min11:500 min29 Jan
Durban07:16 → 09:5011:4548 min11:450 min29 Jan
Dubai09:16 → 11:5012:0848 min12:080 min29 Jan
Delhi10:46 → 13:2012:1048 min12:1048 min29 Jan
Kolkata10:46 → 13:2011:2648 min11:2648 min29 Jan
Singapore13:16 → 15:5012:5425 min12:5448 min30 Jan
Sydney16:16 → 18:5012:440 min12:4448 min30 Jan
Suva17:16 → 19:5011:550 min11:5548 min30 Jan
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vasanta-panchami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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