Clocks - A minimal world clock app for your Mac's menubar
Hours - Boosting productivity through live, virtual co-working.
World Clock iOS 8 Widget - Check the time, anytime. Just pull down Notification Center.
Timesheets by Veryfi - Jobsite intelligence in your pocket
144blocks - Colorful way to track your time! Inspired by Wait But Why
Clockify for Mac - The only truly free time tracker & timesheet for teams