พอจะมีตัวอย่างฟังก์ชันเปรียบเทียบเวลาไหมคะ php หรือ javascript ก็ได้ค่ะ รบกวนขอคำแนะนำด้วยนะคะ

if (TypeVal == 'y') {
                          
                              $('#ut_start_date').text($('#StartDate').val());
                            
                              formTimeUpdate.StartDate.value = $('#StartDate').val();

                              formTimeUpdate.InDateSel.value = $('#StartDate').val();
                            
                              dateString = $('#StartDate').val();
                            
                              dateSplit = dateString.split('/') 
                              date = new Date(dateSplit[2], dateSplit[1]-1, dateSplit[0])
                              date.setDate(date.getDate()+1)
                              newDateString = ((date.getDate() > 10) ? date.getDate() : ("0" + date.getDate())) + "/" + ((date.getMonth()+1 > 10) ? date.getMonth()+1 : ("0" + (date.getMonth()+1))) + "/" + (date.getFullYear())
                                              
                              formTimeUpdate.EndDate.value = newDateString;
                              //formTimeUpdate.ut_end_date.value = newDateString;
                             $('#ut_end_date').text(newDateString).val();

                            if (TimeInSel != '' && TimeOutSel != '') {

                                  $('#timeinlbl').text(TimeInSel).val();

                                  $('#timeoutlbl').text(TimeOutSel).val();
                                      
                            }  
                            else if (TimeInSel != '' && ((TimeInSel >= '00:00') && (TimeInSel <= '08:05')) && TimeOutSel != '') {

                                  $('#timeinlbl').text(TimeInSel).val();

                                  $('#timeoutlbl').text(TimeOutSel).val();

}