Which Android app to choose?

Question

Android

I have a hobby. And I want to know how much time I spend on it.
Tell me the program for android that it was something like this: I
started doing business, I pressed "start", I finished - I pressed "finish", and this programmatica remembered when and how much time and also so that you could see the history on something like a calendar.

Answer 1

Uh... a stopwatch?

Answer 2

Any.Do? Or project schedule

Answer 3

toggl

Answer 4

timecamp.com