• Only two states don’t observe daylight saving time – Hawaii and Arizona.
  • The U.S. Department of Transportation says that daylight saving time conserves energy.
  • Daylight saving time now accounts for about 65% of the year.

Like it or not, our annual ritual of changing our clocks to daylight saving time is coming on Sunday, March 12, at 2 a.m.  

But since most of our computers, smartphones and DVRs automatically change the time for us, it’s not as much of a chore as it used to be. Unless you have smart appliances, microwaves and ovens are on the short list of household items that will need a manual adjustment.

Who’s in charge of DST? When did it start? Why does the United States and more than 70 other countries observe it? Here are the answers to those questions, and more:

Do we gain or lose an hour? 

We all lose an hour of sleep when going to DST, as the day is only 23 hours long.

When clocks go forward, that one hour of daylight is basically shifted from morning to evening as daylight saving time begins. We won’t go back to standard time until Sunday, Nov. 5.

President’s Day:It’s not just a day for an appliance sale. So who does it celebrate? Lincoln or Washington

Who’s in charge of time?

Surprisingly, the U.S. Department of Transportation is in charge of daylight saving time and all time zones in the U.S.

“The oversight of time zones was assigned to DOT because time standards are important for many modes of transportation,” according to the department’s website.

What is the future of daylight saving time?:Year-round change depends on federal vote.

When did the U.S. officially enact daylight saving time?

DST became a national standard in the U.S. in 1966 with the passage of the Uniform Time Act. States either have to change the clocks at a specified time or stick with standard time throughout the year.

In 2007, the federal government expanded daylight saving time in order to reduce energy consumption. The law now specifies that daylight time applies from 2 a.m. on the second Sunday of March until 2 a.m. on the first Sunday of November