BUG: the names of the date-square input is not fully correct: It should show the name of the bold dates!

I was looking for a correct date: I'm from Europe and we have normal dates starting on monday.
Tip: = BUG now: if I normally look to an input of a calendar: the bold dates-numbers are the same as the name in bold above the calandar: THIS IS NOT IN CC: for example if we want to put an 'off day' in oktober there comes 'septembre' above the calendar' => it is difficult to find the date I want to click.
=> + can there be a better changeble Europe view starting on 'monday'