Padbury Clock Screensaver - Minimal screensaver for Mac
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.
Save Hollywood - Play movies as your screen saver
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
iScreensaver - iScreensaver is a multi-featured software that uses Image, Live Photo, Video, Movie, and 3D Model files to create screensavers for Windows and Macintosh.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.