Ruling · Vasantotsava · 1916

Monday 20 March

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 681 minutes.

Decide it for

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two sunrises

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

Sunrise of Sunday 19 March

Pratipadā does not hold at sunrise. Not taken.

05:41 sunrise
04:2904:5305:1705:4106:0506:2906:53

Absent at sunrise

Sunrise of Monday 20 March

Taken. The only sunrise Pratipadā holds at.

05:41 sunrise
04:2904:5305:1705:4106:0506:2906:53

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 17:56 on Sun 19 Mar to 17:03 on Mon 20 Mar.

    1916-03-19T17:26:18Z → 1916-03-20T16:32:49Z

  2. 02

    Kāla

    Sunrise is at 05:41 on the 19th and 05:41 on the 20th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is not on the 19th and is on the 20th.

    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 40883 s

  5. 05

    Ruling

    Vasantotsava, Luanda, 1916: Monday 20 March.

    confidence: determinate

Say it like this

In Luanda, Vasantotsava 1916 falls on Monday 20 March. Pratipadā runs from 17:56 on Sun 19 Mar to 17:03 on Mon 20 Mar and is current at sunrise that day.

ahargana.org/luanda/festivals/1916/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 20 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 20 Mar
compat-drikpanchangComparison profileMon 20 Mar
No institution has a recorded ruling for Luanda.

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 Angeles09:26 → 08:3305:59no05:57holds20 Mar
Chicago11:26 → 10:3305:56no05:55holds20 Mar
Jersey City12:26 → 11:3306:02no06:00holds20 Mar
Port of Spain13:26 → 12:3306:11no06:11holds20 Mar
London17:26 → 16:3306:07no06:05holds20 Mar
Durban19:26 → 18:3305:59no05:59holds20 Mar
Dubai21:07 → 20:1406:06no06:05holds20 Mar
Delhi22:56 → 22:0306:27no06:26holds20 Mar
Kolkata22:56 → 22:0305:43no05:42holds20 Mar
Singapore00:26 → 23:3306:10no06:09holds20 Mar
Sydney03:26 → 02:3305:57no05:58holds20 Mar
Suva05:26 → 04:3306:10no06:10holds20 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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