short form of german weekdays in List Mode

[btz]

The date in the List Mode is formated with $DF = "d.m.Y (D)";
The (D) makes a short form of the weekday with 3 characters.
Can I change this to only 2 characters?
I'm asking because in German usually only 2 characters are used as an abbreviation of the weekday.

[Brian]

If it is supported by the PHP date function, you should be able to do this.

http://www.php.net/date