Don't go in planning to rush through. It's a great museum with lots of info and things I had not encountered in other museums (and I have been to quite a few). Allow at very least an hour.
You can spend a great deal of time in the museum It is very educational. They have a wonderful hunt for education that you can participate in
One hour for a quick run through and reading only a handful of placards, two if you want to immerse yourself in the history and admire the exhibits.
about an hour or two...it depends on how long you look around/read and if you watch the short film before touring the museum.
It takes about three hours plus or minus two hours depending on the individual interest and special events that might be taking place.
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