Tomorrow’s sunrise in Chicago is 6:36 AM, so Brahma Muhurta, the fourteenth of the night’s fifteen muhurtas, runs 5:02 AM – 5:49 AM, ending 47 minutes before the sun. This morning’s window, before today’s sunrise at 6:35 AM, was 5:02 AM – 5:48 AM.

Tonight in Chicago is 11 hr 43 min long, from sunset at 6:53 PM to sunrise, so each night muhurta is 47 min. That is why the window is not a fixed "4 to 5:30": it is tied to Chicago’s own dawn and moves with the season, earlier in summer and later in winter.

If you are setting an alarm here, 5:02 AM is the start of the window and 5:49 AM the end. Practice begun anywhere inside it counts; most people aim to be awake for the start.

What Brahma Muhurta is and how it is calculated →

Brahma Muhurta in Chicago: questions

What time is Brahma Muhurta tomorrow in Chicago?▼

5:02 AM – 5:49 AM, ahead of sunrise at 6:36 AM in Chicago. It is computed from the city’s own sunrise, not a fixed clock time.

What time should I wake up for Brahma Muhurta in Chicago?▼

To be up for the whole window, by 5:02 AM. The window ends at 5:49 AM, 47 minutes before Chicago’s sunrise, so there is a short margin after it before the day begins.

Is Brahma Muhurta always at 4 AM in Chicago?▼

No. It is the 14th muhurta of the night, and tonight’s muhurtas in Chicago are 47 min each, so the window lands at 5:02 AM – 5:49 AM, earlier in midsummer and later in midwinter. "4 AM" is a rough rule of thumb for a twelve-hour night, not the timing itself.

Everything else today in Chicago

Choghadiya
8 day + 8 night periods, from 6:35 AM
All sixteen periods of the day and night, and which of them are worth using.
Rahu Kaalavoid
9:39 AM – 11:12 AM
The ninety minutes a day nothing new should be started.
Abhijit Muhuratbest
12:19 PM – 1:09 PM
The 48 minutes astride solar noon, the safe default for a beginning.
Yamagandaavoid
2:16 PM – 3:48 PM
The second daily avoidance window, the one for health and paperwork.
Gulika Kaal
6:35 AM – 8:07 AM
The window whose events are said to repeat, which cuts both ways.
Dur Muhurtamavoid
6:35 AM – 7:24 AM
The short unlucky muhurtas of the fifteen: one or two, depending on the day.
Hora
24 planetary hours, from 6:35 AM
Twenty-four planetary hours, and what each ruler is traditionally used for.