code: function to12Hour(hour) {
          var meridiem = hour < 12 ? 'am' : 'pm';
          return {
              hour: ((hour + 11) % 12 + 1),
              meridiem: meridiem,
              meridian: meridiem
          };
      }
docs: Convert 24-hour time to 12-hour format.
  
  @param {number} hour Hour to convert (0-23)
  @return {object} { hour, meridiem } (meridian is also returned for backwards compatibility)