When DST ends you set your clock back 1 hour (or it does it automatically nowadays) in the middle of the night, gaining 1 hour of extra sleep
The joke here is that the guy did the same for Leap Day, setting his clock back 24 hours and gaining 24 hours of sleep, so when his boss called at 2pm he was in the middle of his ~32h night
Love how nobody got the joke
When DST ends you set your clock back 1 hour (or it does it automatically nowadays) in the middle of the night, gaining 1 hour of extra sleep
The joke here is that the guy did the same for Leap Day, setting his clock back 24 hours and gaining 24 hours of sleep, so when his boss called at 2pm he was in the middle of his ~32h night