In this application, there is no need to worry about the time especially the time to leave the office,
1) You enter the number of working hours you have to do on this day
2) Press the check in button when you arrive to the office
3) The application will countdown the time to leave the office and will send notifications based on your settings chosen
4) Press the settings button if you want to send a notification 30 min or 5 min before the countdown finishes
5) By default the application will send a notification once the countdown is finished
5) Press the check out button when you leave the office