Most Pizza Huts open around 11 am, just in time for the lunch crowd.  They don't tend to stay open as late as other pizza places like Domino's or Papa John's, though.  They usually close around 10 or 11 pm.  A typical set of store hours is 11 am – 10 pm.
To find the hours for your Pizza Hut, click here to use the Pizza Hut store locator.
Many Pizza Hut locations are focused on carryout and delivery orders.  However, there's often at least a few tables for folks who want to plop right down and devour their doughy feast on the spot.  This is unusual for big pizza chains these days.  Trends have shifted to favor a focus away from dine-in customers.