Change line 677 of templates/reserve.template.php to:
Line 677 is currently :
echo '<td class="formNames" width="50%"><div id="div_start_date" style="float:left;width:86px;">' . Time::formatDate($start_date, '', false) . '</div>' . Time::formatTime($res->get_start()) . "</td>\n"
Are you sure you have the correct line?
Alternatively, can you post what the line would originall look like