Ruling · Vasanta Pañcamī (Basant Panchami) · 1979

Thursday 1 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 590 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 31 January

Pañcamī 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 Thursday 1 February

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 00:53 on Thu 1 Feb to 22:45 on Thu 1 Feb.

    1979-01-31T16:53:24Z → 1979-02-01T14:45:27Z

  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

    Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 31st and 48 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: unstated → only-day · margin 35373 s

  5. 05

    Ruling

    Vasanta Pañcamī, Baoding, 1979: Thursday 1 February.

    confidence: determinate

Say it like this

In Baoding, Vasanta Pañcamī (Basant Panchami) 1979 falls on Thursday 1 February. Pañcamī runs from 00:53 on Thu 1 Feb to 22:45 on Thu 1 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1979/vasanta-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 1 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 1 Feb
compat-drikpanchangComparison profileThu 1 Feb
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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles08:53 → 06:4511:4348 min11:430 min31 Jan
Chicago10:53 → 08:4511:4048 min11:400 min31 Jan
Jersey City11:53 → 09:4511:4641 min11:460 min31 Jan
Port of Spain12:53 → 10:4511:560 min11:560 min1 Feb
London16:53 → 14:4511:500 min11:5048 min1 Feb
Durban18:53 → 16:4511:450 min11:4548 min1 Feb
Dubai20:53 → 18:4512:080 min12:0848 min1 Feb
Delhi22:23 → 20:1512:110 min12:1148 min1 Feb
Kolkata22:23 → 20:1511:260 min11:2648 min1 Feb
Singapore00:23 → 22:1512:240 min12:2448 min1 Feb
Sydney03:53 → 01:4512:440 min12:4448 min1 Feb
Suva04:53 → 02:4511:560 min11:5648 min1 Feb
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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