Time Calculator Pro allows you to Add, Subtract, Multiply and Divide any two times together.
It is the only app that we can find that also allows you to calculate milliseconds!
The app is useful to anyone who ever has to regularly work out timings of different events. Whether you are a truck driver working out your rest breaks, a film editor who needs to work out the length of a scene or an accountant working out how much time to bill a client for, this app is for you!