Simple time tracker. How to find a program without frills?

Question

Time Management

Hello dear experts.
There was a task to track what time employees come to work.
When I was in America, when we arrived at work, we called a special phone (from a worker) and dialed our code. The same for care.
So, a program with the same simple interface is of interest, a person came to work, turned on the computer, pressed the button, working hours started, finished work, pressed the button (you can not turn off the computer).
Well and that it would be possible to build the report for a month.

Answer 1

https://www.rescuetime.com/