问如何从angular material Date picker获取当前时间？

EN

function getTimeFromDate(timestamp) {
  let date = new Date(timestamp * 1000);
  let hours = date.getHours();
  let minutes = date.getMinutes();
  let seconds = date.getSeconds();
  return hours+":"+minutes+":"+seconds
}

let timeStamp = new Date("Mon May 28 2018 00:00:00 GMT+0530 (IST)")
console.log(getTimeFromDate(timeStamp));

        For Example currenttime = Mon May 28 2018 00:00:00 GMT+0530 (IST)

    Currenttime is an example if  u using current date means just use new Date()  

    //Sample function calling Method 
            Exacttime(){
            this.functionName = this.diffhours(new(currenttime))
            }

            diffhours(currenttime){
               var diff = new Date(currenttime);
                diff .getHours(); // => 9
                diff .getMinutes(); // =>  30
                diff .getSeconds(); // => 51

}