Adler Planetarium Hours

Hours Museum Hours Friday-Monday open 9:00 am–4:00 pm Wednesday nights open 4:00 pm–10:00 pm (timed entry tickets)* Tuesday and Thursday open 11:00 am–4:00 pm (temporary spring break hours) *Wednesday tickets include entry to the museum at one of the designated entry times, 4:00 pm or 7:00 pm (last admission 9:00 pm). You may enter anytime after your chosen entry time, and up to the next designated entry time. Every Wednesday night is free for Illinois Residents with proof of residency. To show.