Provide names and the UTC offsets for up to three other timezones in the App Loader before uploading. These are stored in a json file on your watch. UTC offsets can be decimal (e.g., 5.5 for India).
The clock does not handle summer time / daylight saving time changes automatically. If one of your three locations changes its UTC offset, you can simply change the setting in the App Launcher and update. Currently the clock only supports 24 hour time format for the additional time zones.
BangleJS2: Swipe up to rotate screen (Target rotation can be set in the settings). Swipe up again to go back to the default rotation. So you can show the time to a friend real quick or temporarily change orientation for sports etc.