Washington, D.C. ? Autumn’s chill is in the air. Little ghosts and goblins are preparing to play trick-or-treat. It must be time to set the clocks back.

Officially we will fall back to standard time at 2 a.m. Sunday, though most folks will change their clocks tonight.

This is the last time the change will come in October.

Thanks to a law passed last year, daylight-saving time will start earlier and end later beginning in 2007. It will last from the second Sunday in March to the first Sunday in November.

Daylight-saving time returns March 11.