On Tuesday, the US Senate lodged a rare unanimous vote on a bill that could have drastic technological and transportation implications: a permanent, year-round adherence to daylight saving time (DST).

We have to stop changing the clocks twice a year, but it’s also important to pick the right schedule when we do it.

The prospect of permanent daylight saving time in the U.S brightened after President Trump extended support to the move by some lawmakers. But the pitch of energy savings tagged to it is looking doubtful.

New research suggests having one time zone in such a large country can hurt educational attainment, especially of poor children.

What time is it in California? If voters decide to abolish the clock-changing practice in November, answering that could become more difficult.

Designed for the railroad era, they have no place in our globalized, interconnected world.

Alaska lawmakers are considering a bill that would literally change time.

Former president turned country's clocks back in 2007 so that children could wake up for school in daylight, his successor returns to previous system to ensure more daylight in evening when energy consumption peaks

Turning the clock ahead or back one hour may do more than mess with our sleep cycle.

North Korea is creating its own time zone, moving its clocks back by 30 minutes to mark the 70th anniversary of Korea's liberation from Japanese rule, the official KCNA news agency said on Friday. North Korea is in the same time zone as rivals South Korea and Japan, nine hours ahead of Greenwich Mean Time. The change to what it calls

In this intriguing Quartz article, economist Allison Schrager argues that—for reasons including health, efficiency, and simplicity—the U.S. should abolish daylight saving time and reduce the number of time zones in the lower 48 states to 2 (from the present 4).