How to set the execution time of a thread (c#)?

Question

Programming

There is a flow, in it, for example, you need to calculate the power of two, with a step of changing the degree. The number of times this operation is performed is not known, but the time period during which this flow must be performed is given. How can I set the time for a thread?
The whole program code is not needed, I just want to know how to programmatically set the execution time of a thread.

Answer 1

Timer with CancelToken

Answer 2

Pick BackgroundWorker.