Ruling · Vasanta Pañcamī · 2017

Wednesday 1 February

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 319 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Wednesday 1 February

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:30  12:18 madhyāhna ends
10:4211:0611:3011:5412:1812:4213:06

48 of 48 minutes covered

Midday of Thursday 2 February

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:30  12:18 madhyāhna ends
10:4211:0611:3011:5412:1812:4213:06

0 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 06:11 on Wed 1 Feb to 04:50 on Thu 2 Feb.

    2017-01-31T22:11:20Z → 2017-02-01T20:50:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 1st, 11:30–12:18 on the 2nd.

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

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.

    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 19110 s

  5. 05

    Ruling

    Vasanta Pañcamī, Daqing, 2017: Wednesday 1 February.

    confidence: determinate

Say it like this

In Daqing, Vasanta Pañcamī 2017 falls on Wednesday 1 February. Pañcamī runs from 06:11 on Wed 1 Feb to 04:50 on Thu 2 Feb and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2017/vasanta-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 1 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 1 Feb
compat-drikpanchangComparison profileWed 1 Feb
No institution has a recorded ruling for Daqing.

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 Angeles14:11 → 12:5011:430 min11:4348 min1 Feb
Chicago16:11 → 14:5011:400 min11:4048 min1 Feb
Jersey City17:11 → 15:5011:460 min11:4648 min1 Feb
Port of Spain18:11 → 16:5011:560 min11:5648 min1 Feb
London22:11 → 20:5011:500 min11:5048 min1 Feb
Durban00:11 → 22:5011:450 min11:4548 min1 Feb
Dubai02:11 → 00:5012:080 min12:0848 min1 Feb
Delhi03:41 → 02:2012:110 min12:1148 min1 Feb
Kolkata03:41 → 02:2011:260 min11:2648 min1 Feb
Singapore06:11 → 04:5012:540 min12:5448 min1 Feb
Sydney09:11 → 07:5012:440 min12:4448 min1 Feb
Suva10:11 → 08:5011:560 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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