It seemed that the controller showed -7 hours wrong time by default.
This is why I try to change the time. I now then tried changing the timezones like the below Greece and Sweden examples.
Time is changing on the controller but are -4 hours and -3 hours wrong.
I got the coordinates on google maps. I am not sure if I do this correctly?
http://15.1.0.6:80/co?pw=a6d82bced638de3def1e9bbb4983225c&loc=37.98,-23.72 //Greece shows -4 hours wrong time?
http://15.1.0.6:80/co?pw=a6d82bced638de3def1e9bbb4983225c&loc=60.12,-18.64 //Sweden shows -3 hours wrong time?