字幕表 動画を再生する 英語字幕をプリント plan to lose a little sleep this weekend. Daylight saving time. It's Sunday, March 8th. The change happens at 2 a.m. Sunday, so make sure you set your clocks an hour ahead before you head to bed Saturday night. The century old practice will give us an extra hour of sunlight in the evening. That's nice, but Americans sleep approximately 40 minutes less than usual the night following the switch, so you might feel a little sleepy heading into your Monday Katie Johnston for CBS local news.