Standard time returns at 2 a.m. Sunday, meaning clocks should be set back an hour. The change occurs a week later, starting this year, because of a change in the law.

Most people change their clocks before going to bed Saturday night. Some, of course, will forget. They'll be the ones at church or other activities an hour early on Sunday.

The time change doesn't apply in Arizona, Hawaii, Puerto Rico, the Virgin Islands, American Samoa, Guam and the Northern Mariana Islands.