Clocks - A minimal world clock app for your Mac's menubar
Time Buddy - Time Buddy brings a colorful world clock.
Clocker - Keep track of people in different time zones
Time Zones Converter - Time Zones Converter is an application which as the name implies, is used for converting time zones.
144blocks - Colorful way to track your time! Inspired by Wait But Why
Time Zone Converter - Time Zone Converter is an online productivity tool to calculate exact time across time zones.