Vasantotsava

1. १Step 1, Aṅga

   Pratipadā runs from 06:35 on Tue 18 Mar to 03:07 on Wed 19 Mar.

   2003-03-18T10:34:34Z → 2003-03-19T07:06:50Z
2. २Step 2, Kāla

   Sunrise is at 05:58 on the 18th and 05:58 on the 19th.

   sunrise: upper limb, 31′ + 16′
3. ३Step 3, Rule

   Pratipadā must be current at sunrise. It is not on the 18th and is not on the 19th.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105
4. ४Step 4, Tie-break

   Neither sunrise qualifies, and the source does not say what then. The day the tithi falls on is taken, as a boundary.

   no day qualifies → tithi-day, the ruleset's fallback · margin 2183 s
5. ५Step 5, Ruling

   Vasantotsava, Georgetown, 2003: Tuesday 18 March.

   confidence: boundary (absent-unstated)

In Georgetown, Vasantotsava 2003 falls on Tuesday 18 March. Pratipadā runs from 06:35 on Tue 18 Mar to 03:07 on Wed 19 Mar, and is current at sunrise on neither day. The rule does not say what then; the day Pratipadā falls on is taken. The rule does not settle this date cleanly.

Institutional rulings are recorded with a source address, and are never edited to agree.

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.