When purchsing tickest to Black History Museum on line can they be used any date or do they have to be used same date purchased?

Must get tickets in the morning for specific time slot during that day

Once a month usually the 1st Wednesday of the month the museum offers passes for the entire month. During this one day you go online at 9 am to select dates during the month of (for example June). The passes are free through the museum website. Law enforcement officers, military id holders and first responders can visit the museum anytime with a guest. Passes are.not required for them.

They also are used by time slots for the same day when you get same day tickets.

They can only be used for the date purchased due to the fact that at times visitors are way too many it can get overcrowded.