WordPress date

Hi there,

I have made a WordPress template the dates I am using are in English, my client wants them to display in Dutch. So I had changed the Date settings in the administration panel and the date in the locale.php yet the month still appears in english.

This is a small part of the code I am using, am I doing something wrong?

elseif ( is_month() ) {
      echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';
      echo $currentBefore . get_the_time('F') . $currentAfter;

Thanks in advance!