This is the 7837th most frequent Swedish word.
ur
"Ur" in Swedish can mean "out of," "from," or refer to a "watch/clock."
Here, 'ur' functions as a preposition indicating movement out of a container or enclosed space.
Han hoppade ur bilen.
He jumped out of the car.
In this case, 'ur' is part of an idiomatic expression meaning that the clock isn't functioning anymore.
Klockan gick ur tiden.
The clock stopped working.
Here, 'ur' again serves as a preposition, emphasizing the directionality of the action from inside to outside.