One screen
The screen is the sky.
Sumuhurta answers one question, when today is good for you, and answers it as one screen. The screen is the sky. It moves from dawn through noon to dusk and true dark, and your windows sit in it as spans of light: one to three in each sunrise-to-sunrise cycle. The day runs sunrise to sunrise. If your free hours begin at nine at night, your windows do too.
Selected with care
Every personal window Sumuhurta surfaces is calculated to avoid Rahu Kaal, Yamaganda, Gulika, and the Kaal, Rog and Udveg choghadiya periods. It does not display negative-period tables or claim to perform a complete electional-muhurta assessment. It keeps its selected personal windows and leaves the rest as open sky. That is the whole idea, and it is on purpose.
Sunrise 6:06am
Next sunrise 6:06am
10:56am
3:35pm
11:29pm