Americans set their clocks back an hour on Sunday as daylight saving time officially comes to an end. The shift occurs at 2 am, when clocks will move back to 1 am. The seasonal adjustment, which began ...

Add Yahoo as a preferred source to see more of our stories on Google. The purpose of Daylight Saving Time is to provide more daylight hours, primarily to save energy. Most states observe Daylight ...

Once again, most Americans had their clocks set forward by one hour this weekend, losing perhaps a bit of sleep but gaining more glorious sunlight in the evenings as the days warm into summer.Related ...