This app was mentioned in 7 comments, with an average of 2.00 upvotes
I've had people screw with my timesheets (rounding all the shifts down, etc.), so I began keeping my own records, I used this app, though there are plenty of others to choose from.
Take a look at some other timesheet apps and you will see :) For example compare this https://play.google.com/store/apps/details?id=com.aadhk.time with Project Log.
Been using this for a few months. Works great for me.
https://play.google.com/store/apps/details?id=com.aadhk.time