I want the time to be displayed correctly.

function myFunction(){
  let year = new Date().getFullYear();
  const startDate = new Date("2020/4/1 12:00");
  console.log(startDate);  
  console.log (startDate.getUTCMonth());
  console.log (startDate.getUTCFullYear());
  console.log (exchangeTIME (startDate));
}
function exchangeTIME (startDate) {
  const startDATE=
    startDate.getUTCFullYear()+("0"+(startDate.getUTCMonth()+1)).slic(-2)+
    ("0" + startDate.getUTCDate()) .slice(-2) + 'T' + ("0" + startDate.getUTCHours(-2)+
    ("0" + startDate.getUTCMinutes()) .slice(-2)+("0" + startDate.getUTCSeconds(-2);

  return startDATE;
}