Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."
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.
Timeline - Timeline is a cross-platform application for displaying and navigating events on a timeline.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Preceden - Preceden makes it easy to build simple, powerful timelines
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.