Ruling · Vasantotsava · 1950

Sunday 5 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 570 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 4 March

Pratipadā does not hold at sunrise. Not taken.

06:16 sunrise
05:0405:2805:5206:1606:4007:0407:28

Absent at sunrise

Sunrise of Sunday 5 March

Taken. The only sunrise Pratipadā holds at.

06:14 sunrise
05:0205:2605:5006:1406:3807:0207:26

Holds 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 18:34 on Sat 4 Mar to 15:45 on Sun 5 Mar.

    1950-03-04T10:33:48Z → 1950-03-05T07:44:42Z

  2. 02

    Kāla

    Sunrise is at 06:16 on the 4th and 06:14 on the 5th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 4th and is on the 5th.

    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 34219 s

  5. 05

    Ruling

    Vasantotsava, Daqing, 1950: Sunday 5 March.

    confidence: determinate

Say it like this

In Daqing, Vasantotsava 1950 falls on Sunday 5 March. Pratipadā runs from 18:34 on Sat 4 Mar to 15:45 on Sun 5 Mar and is current at sunrise that day.

ahargana.org/daqing/festivals/1950/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Mar
Ahargaṇa, classicalDisc centre, no refractionSun 5 Mar
compat-drikpanchangComparison profileSun 5 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 4thCoveredSunrise 5thCoveredRuled
Los Angeles02:34 → 23:4506:19holds06:17no4 Mar
Chicago04:34 → 01:4506:22holds06:20no4 Mar
Jersey City05:34 → 02:4506:27holds06:25no4 Mar
Port of Spain06:34 → 03:4506:20no06:19no4 Mar
London10:34 → 07:4506:41no06:39holds5 Mar
Durban12:34 → 09:4505:49no05:49holds5 Mar
Dubai14:34 → 11:4506:40no06:39holds5 Mar
Delhi16:04 → 13:1506:44no06:43holds5 Mar
Kolkata16:04 → 13:1505:56no05:56holds5 Mar
Singapore18:04 → 15:1506:44no06:44holds5 Mar
Sydney20:34 → 17:4505:45no05:46holds5 Mar
Suva22:34 → 19:4506:06no06:06holds5 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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