verbs - Is there a word that means “measure time”?

You can measure the weight – it is called weighing.

If you measure time, what is that called? Is there a single English word for this?

I'm thinking especially in the context of measuring the performance of something, for example, to measure the time it takes for a computer program to complete a specific task or to measure the time it takes a runner to run 100 meters.

Answer

If you're measuring the time it takes a runner to run 100 meters, you are timing the runner, or clocking the runner.

From Merriam-Webster dictionary:

Clock: transitive verb 1a: to time with a stopwatch or by an electric timing device

Time:
transitive verb 4. to determine or record the time, duration, or rate of