Taskly

Taskly is a time management tool that lets you focus on the activities you need to accomplish during the day.

You can start your productive day by writing the tasks you ought to do. You can set the duration you want to spend on each of your tasks throughout the day. You just need to hit "play" and start accomplishing your tasks. The active task will be visible in your menu bar with a countdown to keep you focused on what to do and how much time's left to do it.