Hello Irene,
the correct representation of date, month and year is in german speaking countries with points between dd.mm.yyyy.
For Example:
12.März 2012 = 12.03.2012
BR
DJ

Hello GTvb and zweitewelle ,

If you are impatient tu use German date format, open the file \components\com_joomsport\includes\func.php and before the line 25:

        case "d-m-Y H:i": $format = "%d-%m-%Y %H:%M"; break;

insert this new line :

                case "%d-%m-%Y %H:%M": $format = "%d.%m.%Y %H:%M"; break;

And the result will be a date in format 04.03.2012 14:17 when selected d-m-Y H:M  in the BE configuration.

Jojo

Hello,

We will take into consideration for further releases your suggestion about implementing format "dd.mm.yyyy."

If you are interested in this date format immediately we are pleased to offer you custom development.

Please feel free to contact JoomSport support.

Hello GTvB,

You said that you were able to locate my dirty workaround before I write it, but you have to think that it could interest also zweitewelle (perhaps that he was not able to do this workaround himself and on your side you didn"t propose your solution).

You have to know that the goal of this forum is not to generate beautifull PHP code but it's to help the requesters 

My workaround works fine and it's the Main point. If you remember, I proposed also a dirty workaround for your 'selection box' problem and it helped you even if it was incomplete .

Now, for zweitewelle, here is a clean correction (not the better one because the configuration in done in the PHP code).
Open the file \administrator\components\com_joomsport\models\default\config.php file and in line 42, insert the following line :

        $is_data[] = JHTML::_('select.option', "%d.%m.%Y %H:%M", "d.m.Y H:M", 'id', 'name' );         

Jojo