I was abducted by aliens!

There is no other explanation. I got up this morning as usual, went out with the dog, showered and left for work at 8:20, same as I do every day. Got to work, got a coffee and sat at my computer to go through emails. I looked up at the clock after I had been here for a while to discover that the clock said 9:50. Since I have only been here for 15 - 20 minutes, somewhere I have lost an hour. Between leaving the house and getting to work, I apparently lost an hour. I must have been abducted by aliens who performed wierd and gross experiments on me. There is no other explanation. Well, maybe that my power went out at home for exactly an hour, but I think we all know which is the more probable explanation, don't we?