Time stamp on Photos

Sometimes I use two cams when I am on a bicycle, a mobile phone for details in front and the LG 360 cam.
The upload from the mobile phone using mapillary app shows the correct (local) time on the website. The uploads from the LG 360 cam (using python and without editing exif data) do show a different time (1 or 2 hours difference). Anyone know why and how to solve?

The LG 360 is connected with another mobile phone but I checked it has the correct local time. Maybe the time zone is part of Exif data, and not saved in LG 360 cam pictures?