Holī

1. १Step 1, Aṅga

   Pūrṇimā runs from 14:57 on Thu 28 Mar to 13:44 on Fri 29 Mar.

   1907-03-28T20:56:52Z → 1907-03-29T19:44:20Z
2. २Step 2, Kāla

   Sāyāhna is last 3 of 15 day muhūrtas: 15:41–18:10 on the 28th, 15:41–18:11 on the 29th.

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

   Pūrṇimā must be present during sāyāhna. It covers 150 of 150 minutes on the 28th and 0 of 150 on the 29th.

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

   Only one late afternoon qualifies. No tie-break is needed.

   priority: unstated → only-day · margin 2631 s
5. ५Step 5, Counted

   Holī is kept the day after Holikā Dahana: Thursday 28 March is the day taken above.

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

   Holī, Chicago, 1907: Friday 29 March.

   confidence: determinate

In Chicago, Holī 1907 falls on Friday 29 March. It is kept the day after Holikā Dahana, which falls on Thursday 28 March. Pūrṇimā runs from 14:57 on Thu 28 Mar to 13:44 on Fri 29 Mar and covers all of sāyāhna on the 28th.

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.