I use Sitytrail Belgium v7.2 on my iPhone. I record a trail and save&send it to my account. Then, in Sity Guides Editor, I log in and can export the trail to GPX. I use Sity Guides Editor on iMac (Safari). After opening the GPS-file in Garmin BaseCamp, I see a time-shift in the trail of +1 hour. This is an error, and I think it is because Sitytrail does NOT take into account the correct time-zones (and winter/summer-corrections) where it is recording the trail.
When I use for example other iPhone app like GPS Hiker, then I don't have this time-shifting problem, because this app is aware of time-zone. If neccessary I can eventually post GPX-file recorded by GPS Hiker. In the header of the GPX-file, there is an entry with the local time when the trail-recording started. In the GPX-file exported by SityTrail, there is NO such local time entry, only the track-point with their accompanied local time, so the shift in time from GMT+0 (Greenwich) is NOT known is this case I suppose....