After applied the latest update on my Forerunner 235, I found that the timezone sync via the Garmin app does not match with my Samsung S10+ or GPS. The difference from the actual time is minus 1hr 19min which is weird. How to fix it?
Does the GPS show you the right position? You can also force the time setting with the function "Set Time with GPS" (on most watches available in the time menu, after the long-press of the Back button).