Just Know your Zone is a Chrome extension developed by Presidio Vantage Information Systems. This free add-on enhances the Google Calendar web-interface by displaying the default TimeZone in the upper-right corner, beside your account logo. This feature is visible in both the Calendar view and the Event view, providing users with quick and easy access to their default TimeZone information.

By integrating seamlessly into Google Calendar, Just Know your Zone eliminates the need for users to manually check their TimeZone settings. With a simple glance, users can now see their default TimeZone displayed prominently, ensuring that they are always aware of the time zone they are working in. This is particularly useful for individuals who frequently travel or work with colleagues in different time zones.

Just Know your Zone is a valuable tool for anyone who relies on Google Calendar for their scheduling needs. With its intuitive design and convenient display of default TimeZone information, this extension makes it easier than ever to stay organized and on top of your calendar events.