I am not sure really. The most I can say is that there have been no other reports of this behavior (and also that my QSI returns UTC). Then again, most folks probably don't really care too much if this value is incorrect.
The logging in 2.5.2.2 confirms that SGPro is receiving a local time from the camera, then we apply your PCs time zone to that to get local time.
Patently untrue. Moving to London will also fix this issue.