Were is the expiration date on a snickers bar?

There is no expiration date, only the date that it was manufactured. It's printed in the white box near the bar code. You'll see a series of numbers and letters. example: 935BYWAC02 27. The 1st number (9) is the year it was manufactured (2009). The 2nd sequence of numbers (35) is the week that it was manufactured (last week in August).