Ohio Clock

Senate Sergeant at Arms Charles P. Higgins turns forward the Ohio Clock for the first daylight saving time on March 31, 1918, while Senators William M. Calder, Willard Saulsbury, Jr., and Joseph T. Robinson look on.

The Ohio Clock (or Senate Clock) is a clock in the United States Capitol. The United States Senate ordered the clock from Thomas Voigt in 1815, and it has stood in or near the Senate Chamber since 1859.