An official website of the United States Government 
Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( lock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Photos

Snapshots of what’s happening in the Defense Department.

Three men stand in front of a large clock in 1918 while a fourth man changes the hands on the clock.

Ohio Clock

In 1918, Senate Sergeant at Arms Charles Higgins turns the Ohio Clock at the U.S. Capitol building in Washington, D.C., forward for the first daylight saving time, while Sens. William Calder, William Saulsbury Jr. and Joseph T. Robinson look on.

Photo Gallery