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.
Nomad Time - A friendly time zone converter
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Pidgin - Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Time Zone Converter - Time Zone Converter is an online productivity tool to calculate exact time across time zones.