Okay, let me think..... last year was my first year of going to Mickey's Trick or Treat Party. We were there on the first night it began, which was Friday, October 3rd. This year, I assume it will begin on Friday, October 2nd. (It always starts about a week after Halloweentime season begins at DLR.) It is held mainly on Fridays and Saturdays, but, if I recall correctly, as it got closer to October 31st, a few more weekdays were added here and there. And then it ends after October 31st, I think. The TOTP began at 7:30 p.m., and lasted for a few hours.