Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
OneTime - Multiple timezones on one simple dial
LanguageBeast.com - Study English synonyms and antonyms to enrich your vocabulary
Every Time Zone - Online tool for keeping up with times around the world.
Babble - A more personalized social network
Time Zone Pro - A beautiful world clock for friends, family, clients and more