This clock provides dual time, with a selectable Zulu (or GMT) offset, a selectable background and font color, a selectable battery image, and the option to display more fitness information instead of the second time.

Note: I have attempted to force a timezone check every 15 minutes (the result of a Fitbit limitation). To ensure full functionality, when coming out of airplane mode on your phone, force Fitbit to sync, then select any settings change (You can change it right back). This should get everything synced to your current location.

Change updates to a more recent Fitbit programming version.