There are several sure indications that another cold winter is coming to a close and spring is on the way. Weeks before the spring equinox arrives on March 20, the air starts getting warmer, days become longer and there are new signs of life in plants and animals.

Daylight saving time is almost here. And while it means longer days, it also means less sleep. Here's what to know.

Daylight saving time will kick off on Sunday, March 9, requiring Americans to lose an hour of sleep as time shifts ahead by one hour.