when can i come to the theater and buy tickets directly? When is the box office?

During the week between the hours of 9 and 4 call them Jones Beach theater so they'll have a better answer for you good luck

Also look on Groupon first. They usually sell tickets discounted

I'm thinking the usual time.. Which is usually after the long Island marathon.. Or look online..there is a box office number and a recorded message for box office hours.. With the gas u use to get there, why not pick ur own seats on the live Nation website.??