Google Calendar has a World Clock functionality built-in. When scheduling events, it will show times in the time zones that you have added under World Clock in

Google Calendar has a World Clock functionality built-in. When scheduling events, it will show times in the time zones that you have added under World Clock in settings. The world clock will display on your left sidebar. https://support.google.com/calendar/answer/37064 https://support.google.com/calendar/answer/37064