Time Buddy - Time Buddy brings a colorful world clock.
Xmind - Xmind is a brainstorming and mind mapping application.
Time Zones Converter - Time Zones Converter is an application which as the name implies, is used for converting time zones.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
World Clock - World Clock is an app that lets you see the time of any city in the world.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.