A slow day took us 4 hours. Extra side trips or lunches could take another 4 hours. Not a race.
It can take a whole day and depends on whats your interest. The Bus tour which is included in the daily admission ticket, can take at least 2 hours to complete. Best part is Space shuttle Atlantis tour.
If you like movie presentations reserve a day, if you just want to visit the rockets, ships, etc, half a day is more than enougth.
Your pass is for 5 or 7 days. Many spend several days, some just a half day. But, the free bus tour is the best part.
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