Change the what?

Last night, we changed the clocks back an hour.  But did anyone actually change a real clock?  Before changing the clocks last night, I looked around my apt and saw the computers and cell phones and router, which all are basically atomic clocks and change automatically, and I asked "Is there any clock here that we actually have to change?"  My husband thought and said "no" and I was a little surprised.  Is there really no more physically changing the clock anymore?  Like no more rewinding a movie after you watch it?  It made me a little sad.  (Then we thought of our watches...and the radio clock in the bedroom.  Phew!)  But what's next?  Not using a key to turn on the car?  Wait...