Mar 12, 2023 - Daylight Saving Time Starts When local standard time is about to reach Sunday, March 12, 2023, 2:00:00 am clocks are turned forward 1 hour to Sunday, March 12, 2023, 3:00:00 am local daylight time instead. Sunrise and sunset will be about 1 hour later on Mar 12, 2022 than the day before. There will be more light in the evening. Also called Spring Forward, Summer Time, and Daylight Savings Time. Daylight Saving Time Begins History Daylight Savings Time was started to provide workers with more hours of daylight during the summertime. It also aimed to save energy. Daylight Savings Time was first introduced in 1918 in the U.S. It was not until the Uniform Act of 1966 that states had to either observe Daylight Savings Time or pass laws to abstain from it. It is observed annually in the beginning of March.