Ruling · Vasantotsava · 1989

Thursday 23 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 543 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 Thursday 23 March

Taken. The only sunrise Pratipadā holds at.

05:38 sunrise
04:2604:5005:1405:3806:0206:2606:50

Holds at sunrise

Sunrise of Friday 24 March

Pratipadā does not hold at sunrise. Not taken.

05:36 sunrise
04:2404:4805:1205:3606:0006:2406:48

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 17:58 on Wed 22 Mar to 20:33 on Thu 23 Mar.

    1989-03-22T09:57:56Z → 1989-03-23T12:33:20Z

  2. 02

    Kāla

    Sunrise is at 05:38 on the 23rd and 05:36 on the 24th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 23rd and is not on the 24th.

    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 32589 s

  5. 05

    Ruling

    Vasantotsava, Daqing, 1989: Thursday 23 March.

    confidence: determinate

Say it like this

In Daqing, Vasantotsava 1989 falls on Thursday 23 March. Pratipadā runs from 17:58 on Wed 22 Mar to 20:33 on Thu 23 Mar and is current at sunrise that day.

ahargana.org/daqing/festivals/1989/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 23 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 23 Mar
compat-drikpanchangComparison profileThu 23 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 22ndCoveredSunrise 23rdCoveredRuled
Los Angeles01:58 → 04:3305:54holds05:53no22 Mar
Chicago03:58 → 06:3305:51holds05:49holds22 Mar
Jersey City04:58 → 07:3305:57holds05:55holds22 Mar
Port of Spain05:58 → 08:3306:09holds06:09holds22 Mar
London09:58 → 12:3305:59no05:57holds23 Mar
Durban11:58 → 14:3306:01no06:01holds23 Mar
Dubai13:58 → 16:3306:21no06:20holds23 Mar
Delhi15:28 → 18:0306:23no06:22holds23 Mar
Kolkata15:28 → 18:0305:39no05:38holds23 Mar
Singapore17:58 → 20:3307:08no07:08holds23 Mar
Sydney19:58 → 22:3306:00no06:01holds23 Mar
Suva21:58 → 00:3306:11no06:11holds23 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

About Ahargaṇa