A card is selected and signed on the face. Then you draw a picture of a clock on the back of the selection. The spectator is asked to name any time (no force) and the fingers on the clock visually move to another time!
That’s good, but it’s not the spectator’s time. The fingers move for a second time, coming to rest on the exact same time the spectator merely thought of!
The card is immediately handed out.
No switch at the end.
Precision made gimmick.