When is it?
The time change begins on Sunday, March 12th, at 2 a.m., when clocks are moved forward by one hour.
Why 2 a.m.?
The time change is set for 2 a.m. because it was decided to be the least disruptive time of day. Moving time forward or back an hour at that time doesn’t change the date, which avoids confusion, and most people are asleep, or if people do work on a Sunday, it’s usually later than 2 a.m. So don’t forget, you don’t want to be late for work, school or a breakfast date! 🙂