Grafana vs. JDBC persistence: timezone problem


I’m persisting a couple of values (temperature, humidity…) with a MariaDB and have created a dashboard with Grafana to display them.
The persisted items seem to have time values without a timezone information:

Grafana interprets these as UTC and that graph is display with an offsett.

Is there a way to add the timezone information into the time column?
Or is this working as designed?
What would happen, when summertime/wintertime change occurs?

I’d be thankful for any suggestion and/or enlightenment :slight_smile:

Have a good day!

I just found the solution myself…
For anyone who might have the same trouble, refer to