Ruling · Vasantotsava · 1954

Saturday 20 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 403 minutes.

Decide it for

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

The two sunrises

One ghaṭī is 24 minutes. The sunrise is read as upper limb, 31′ + 16′.

Sunrise of Saturday 20 March

Taken. The only sunrise Pratipadā holds at.

05:45 sunrise
04:3304:5705:2105:4506:0906:3306:57

Holds at sunrise

Sunrise of Sunday 21 March

Pratipadā does not hold at sunrise. Not taken.

05:43 sunrise
04:3104:5505:1905:4306:0706:3106:55

Absent at sunrise

Pratipadā presentSunrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 20:42 on Fri 19 Mar to 23:00 on Sat 20 Mar.

    1954-03-19T12:42:24Z → 1954-03-20T15:00:13Z

  2. 02

    Kāla

    Sunrise is at 05:45 on the 20th and 05:43 on the 21st.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 20th and is not on the 21st.

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

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 24192 s

  5. 05

    Ruling

    Vasantotsava, Daqing, 1954: Saturday 20 March.

    confidence: determinate

Say it like this

In Daqing, Vasantotsava 1954 falls on Saturday 20 March. Pratipadā runs from 20:42 on Fri 19 Mar to 23:00 on Sat 20 Mar and is current at sunrise that day.

ahargana.org/daqing/festivals/1954/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 20 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 20 Mar
compat-drikpanchangComparison profileSat 20 Mar
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/vasantotsava · ruleset 2026.3-draft

Month
Phālguna, amānta
Pakṣa · aṅga
Kṛṣṇa · Pratipadā
Kāla
Sunrise
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāSunrise 19thCoveredSunrise 20thCoveredRuled
Los Angeles04:42 → 07:0005:59holds05:57holds19 Mar
Chicago06:42 → 09:0005:57no05:55holds20 Mar
Jersey City07:42 → 10:0006:02no06:01holds20 Mar
Port of Spain08:42 → 11:0006:11no06:11holds20 Mar
London12:42 → 15:0006:07no06:05holds20 Mar
Durban14:42 → 17:0005:59no05:59holds20 Mar
Dubai16:42 → 19:0006:25no06:24holds20 Mar
Delhi18:12 → 20:3006:27no06:26holds20 Mar
Kolkata18:12 → 20:3005:43no05:42holds20 Mar
Singapore20:12 → 22:3006:40no06:39holds20 Mar
Sydney22:42 → 01:0005:57no05:58holds20 Mar
Suva00:42 → 03:0006:10no06:10holds20 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vasantotsava@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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