Daylight Saving Time 2025 begins on Sunday, March 9, at 2 a.m., when clocks will move forward by one hour. This annual time change is aimed at maximizing daylight hours in the evening, but it also raises debates on energy savings, health effects, and productivity. While most U.S. states follow DST 2025, places like Hawaii and most of Arizona do not. Some lawmakers have proposed making DST permanent, but no final decision has been made. As the spring forward time change approaches, it’s essential to prepare for sleep adjustments and stay alert to its impacts.