Calendar sync wrong time for events

Jan 1, 2014
I have a really weird problem,
all the events I have on my google calendar are synced wrong.
Every event appears an hour earlier, E.g. if I have an event at 10:00 I see it at 9:00 on the calendar on my phone. I've tried to use different calendar apps but its the same in all of them.
I've made sure that the time zone is the same on my google calendar, my phone, and calendar app. but I don't know what else to do. As far as I remember it worked fine on an older MIUI version.
Now I use MIUI-3.12.27.

any suggestions?