I need some help altering this script section to go from military to standard time. Im not real strong with java and not certain how to do it, the research i have done did not make much sense.

Code:
									var start_time_hours = start.getHours();
									
									if(start_time_hours < 10) { start_time_hours = "0" + start_time_hours; }
									var start_time_minutes = start.getMinutes();
									if(start_time_minutes < 10) { start_time_minutes = start_time_minutes + "0"; }
									
									// adding AM-PM in Start Time
									var bk_st_time = start_time_hours + ':' + start_time_minutes;
									if(start_time_hours < 12){ bk_st_time = bk_st_time + "AM";} else { bk_st_time = bk_st_time + "PM";}
									/*document.myform.st.value = bk_st_time;*/

									var end_time_hours = end.getHours();
									var end_time_minutes = end.getMinutes();
									if(end_time_hours < 10) { end_time_hours = "0" + end_time_hours; }
									if(end_time_minutes < 10) { end_time_minutes = "0" + end_time_minutes; }
									
									// adding AM-PM in End Time
									var bk_end_time = end_time_hours + ':' + end_time_minutes;
									if(end_time_hours < 12){ bk_end_time = bk_end_time + "AM";} else { bk_end_time = bk_end_time + "PM";}
									/*document.myform.edt.value = bk_end_time;*/
									
									var mm = start.getMonth()+1;
									
									var booking_date = start.getFullYear() + '-'+ mm + '-' + start.getDate();
									document.myform.bookdate.value = booking_date;
									
									calendar.fullCalendar('Unselect');