The application's main window is divided into two main tabs. In the first there's a chart of the hours in each day you can use to get things done. In the second, there's a classic task manager from which you can set tasks and estimate the time for each one.
The program interface is a bit ugly, but it's also pretty intuitive. It's easy to move from one section to another and edit information – a welcome feature in an application designed to optimize your time and effort.
Working Time is not exactly the prettiest task manager out there, but its simplicity and compact size make it an interesting alternative.