Daylight Savings Time

Alex overslept again this morning. I figured something was up when I didn't hear the door open/close at 6:30am.  I went to check on him and he thought it was 5:30am. When I told him the correct time he said that his clock must have adjusted for Daylight Savings Time.  Yes. He said his clock adjusts itself automatically.  It was the clock's fault. 

I told him he used that excuse once and can't use it again until next year.