When does Hanukkah start and end in an American calendar?

It depends on the year, since the Hebrew calendar is shorter than the normal Gregorian calendar. In the Hebrew calendar, Hanukkah starts on Kislev 25 and ends on Tevet 2 (or Tevet 3 if Kislev is short.) This year, Hanukkah begins in the evening of Saturday, December 8, and ends in the evening of Sunday, December 16.