Time Zones Converter - Time Zones Converter is an application which as the name implies, is used for converting time zones.

Dato - Better menu bar clock with calendar and time zones

Time Zone Converter - Time Zone Converter is an online productivity tool to calculate exact time across time zones.

Clocks - A minimal world clock app for your Mac's menubar

World Clock - World Clock is an app that lets you see the time of any city in the world.

Clocker - Keep track of people in different time zones