hi guys how are you? To make your life easy and its work i have a newfantastic app of stopwatch timer that note readings of your every work you want to be noted.you can easily note by single click before starting your work and after finishing work single click would gives you time period of your work in which time you did your work. stopwatch timer is free app after installing you can easily use this stopwatch timer anywhere. following is the link of stopwatch timer:
https://play.google.com/store/apps/details?id=com.meniapps.simple.stopwatch&hl=en