I updated this in Updates on May 7, 2021 (Release 93)
display activities in local time
this will help a lot, but the display is based on the browser’s time zone so if you’re looking at one of your activities in another time zone it’s still going to be wrong
From what I can recall, I get a UTC timestamp for each activity with little/no accompanying information of what that means.
Ultimately, I (think I) will need to e.g. take the first GPS coordinate from the activity & determine which time zone it’s in, store that, and use that when displaying the activity in the browser (removing this change from Release 93 which uses the browser’s time zone).
I don’t think I care about instances where an activity traverses multiple time zones. I think I only care about displaying the activity start time.