With Timeliness you plan your tasks inside your existing calendar. This has the advantage that you can not only see easily when you should to start working on the next task, but it also means you get to move things around just as you already do with normal events. Timeliness does that by creating an event for your task's deadline and by creating events for the sole purpose of blocking out time, in order for you to work on your task. These time blocking events are scheduled automatically, but you can move them around as you like and see them being synced back to the app.