Time.is - exact time in any location
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.
Every Time Zone - Online tool for keeping up with times around the world.
Hours - Boosting productivity through live, virtual co-working.
timeanddate.com - Free Clock for your website or blog!
Futuramo Time Tracker - Futuramo Time Tracker is a time tracking solutions designed for freelancers and teams.