Every Time Zone - Online tool for keeping up with times around the world.
OneTime - Multiple timezones on one simple dial
Team Time Zone - Local clocks for distributed teams who use Slack
HomeSlice - Mobile App Roommate Dashboard (chores, expenses, etc.)
Time Zone Pro - A beautiful world clock for friends, family, clients and more
World Clock iOS 8 Widget - Check the time, anytime. Just pull down Notification Center.