javascript - how do you get current day's starting time and the most current time in milliseconds -

need curent time , 00:00 in morning in milliseconds? need automatically every day, current starting morning (00:00:00) , current time in milliseconds? has done this?

this works :

function milliseconddiff(mydate) {   var midnightday = mydate.getutcdate();   var midnightmonth = mydate.getutcmonth() + 1;   var midnightyear = mydate.getutcfullyear();   var midnightmilliseconds = new date(midnightyear + '/' + midnightmonth + '/' + midnightday).gettime();   return new date().gettime() - midnightmilliseconds; }  var millissincemidnight = milliseconddiff(new date()); console.log(millissincemidnight + ' ms'); console.log((millissincemidnight / 1000) + ' s'); console.log((millissincemidnight / (1000 * 60)) + ' min'); console.log((millissincemidnight / (1000 * 60 * 60)) + ' h');