When the Fast of Tisha B'Av begins, in 2010, in New York

Of course, checked the linked-to websites for your own local times.

For Kew Gardens Hills, in Queens.
I found the just one published time for the fast to begin.

From Chabad:

Shkiah (sunset) | Fast Begins	8:23 pm
Tzeit Hakochovim (nightfall)	9:02 pm

While I am at it, I will give some free publicityto Rabbi Yaakov Haber's Online Tisha B'Av Kinos video.