Start Of British Summer Time 2025. As british summertime ends, get ready to rug up and welcome the colors of a new season. Get ready to spring forward and embrace sunlight like never before as british summer time begins commences on march 31!

There’s more daylight in the evenings and less in the mornings (sometimes called daylight saving time). Daylight saving time is set to begin on sunday, march 9, 2025.