function titel_str=convert_to_title(id)
    ids=split(id,'_');
    da=ids(2);
    dat=substr(da,7,2)+"."+substr(da,5,2)+"."+substr(da,1,4);
    t1=ids(3);
    ti1=substr(t1,1,2)+":"+substr(t1,3,2)+":"+substr(t1,5,2);
    t2=ids(5);
    ti2=substr(t2,1,2)+":"+substr(t2,3,2)+":"+substr(t2,5,2);
    titel_str=dat+" "+ti1+"-"+ti2;
end