WASHINGTON (Yonhap News) ― The Seoul-Washington time difference will widen to 14 hours starting next week with the end of the daylight savings time in the United States, officials said Wednesday.

On March 11, the U.S. advanced clocks by a hour in an effort to save energy by making evenings have more daylight and mornings less.

The measure led to a 13-hour time gap between South Korea and Washington, New York and other eastern areas in the United States.

The U.S. will adjust clocks backward as of 2 a.m. on Sunday under the Energy Policy Act.

The time difference between South Korea and western U.S. regions, including Los Angeles and San Francisco, will expand to 17 hours from the current 16.

European summer time was lifted on Oct. 28.