Holī

1. १Step 1, Aṅga

   Pūrṇimā runs from 16:22 on Thu 24 Mar to 16:59 on Fri 25 Mar.

   2005-03-24T20:21:50Z → 2005-03-25T20:58:32Z
2. २Step 2, Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 15:37–18:03 on the 24th, 15:37–18:03 on the 25th.

   sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′
3. ३Step 3, Rule

   Pūrṇimā must be present during sāyāhna. It covers 101 of 146 minutes on the 24th and 82 of 146 on the 25th.

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

   Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

   priority: unstated → greater-coverage · margin 2679 s
5. ५Step 5, Counted

   Holī is kept the day after Holikā Dahana: Thursday 24 March is the day taken above.

   follows: holika-dahana + 1 d
6. ६Step 6, Ruling

   Holī, Georgetown, 2005: Friday 25 March.

   confidence: boundary (tie-break-unstated)

In Georgetown, Holī 2005 falls on Friday 25 March. It is kept the day after Holikā Dahana, which falls on Thursday 24 March. Pūrṇimā runs from 16:22 on Thu 24 Mar to 16:59 on Fri 25 Mar and covers 101 of 146 minutes of sāyāhna on the 24th. It also reaches the next late afternoon for 82 minutes; the rule does not say which to take, and the one covered longer is ruled. 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

Śukla · Pūrṇimā

Kāla

Sāyāhna

Priority

Unstated

Tie-break

Longer coverage, as a boundary

Kept

The day after Holikā Dahana

S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana. Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.