Name: Chronos Terminal Watchface v2
Rating: 4.5 (18 reviews)
Author: ms0x4C

Watchface with three configurable time zones and fitness data. Very battery friendly. Now also with "high contrast mode" (black digits on white backgroud).

You can change ALL settings (incl. the time zone settings) on your smartphone with the app "Garmin Connect". 
* Use the menu on the left, go to "Garmin devices" and click on your connected watch. 
* Then go to "activities & app management" - "display designs". 
* Click on "Chronos Terminal Watchface" and then "settings". 
* Now you can specify the timezone offsets in hours and rename the time zone as needed.
* "high contrast mode" switches to black digits on white backgroud (can take some time until gets activated, switching between widgets or activities may help)

Have a lot of fun!