Let's not be a jerk to people who are trying to learn. We all started out unaware of things we now consider essential knowledge. For (my) example, timezones offsets can and do include partial hour offsets (+0415 is/was real), and dates should generally be YYYY-MM-DD (when not displayed to end users) for your sanity (and because iso8601).

OP, you can look up the numeric formats for Germany in your system preferences or Excel or similar — it can help to see them templated out sometimes.