Community calendar vs. timezones

[garloff]

The community calendar has a rendering of our events on the contribute page.
The grid seems to always display our local timezone (Europe/Amsterdam => CET/CEST), but the labels seem to take the timezone from the visiting browser, saying GMT+2 for me (which is correct, as CEST ist GMT+2), but saying GMT for someone that has configured GMT/UTC on his browser -- without shifting the times. This is wrong.
ToDo: Investigate and either fix or add an explaining remark to avoid confusion.

[garloff]

May be a duplicate of SovereignCloudStack/docs#65