Countdown Screensaver - A Mac screensaver for counting down to a date 🖥🕐
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Email Taco - A free email countdown timer for expiring offers
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Free time calculator - How much free time do you have remaining?
Pomodone - Pomodone is the easiest way to track your workflow using Pomodoro technique, on top of your current task management service.