date milliseconds javascript code example

Example 1: javascript get time

// these are the most useful ones IMO
var time = new Date();
time.getDate(); // returns value 1-31 for day of the month
time.getDay(); //returns value 0-6 for day of the week
time.getFullYear(); //returns a 4 digit value for the current year
time.getHours(); //returns value 0-23 for the current hour
time.getMinutes(); //returns value 0-59 for the current minute of the hour
time.getSeconds(); //returns value 0-59 for current second of the minute
time.getMilliseconds(); //returns value 0-999 for current ms of the second
time.getTime(); //returns date as ms since Jan 1, 1970
time.toDateString(); //returns a string (e.g. "Fri May 9 2020")
time.toLocaleString(); //returns date and time (e.g. "9/12/2015, 6:08:25 PM")
time.toLocaleTimeString(); //returns time (e.g. "6:08:25 PM")
time.toLocaleDateString(); //returns date (e.g. "9/12/2015")

Example 2: js read date from milliseconds

const miliseconds = 1604395966369;

const date = new Date(miliseconds);

Example 3: datetime to date javascript

var currentDate = new Date();

var date = currentDate.getDate();
var month = currentDate.getMonth(); //Be careful! January is 0 not 1
var year = currentDate.getFullYear();

var dateString = date + "-" +(month + 1) + "-" + year;

Example 4: js get date in ms

Date.now() // 1602680486141

Example 5: convert milliseconds to time javascript

function msToTime(s) {

  // Pad to 2 or 3 digits, default is 2
  function pad(n, z) {
    z = z || 2;
    return ('00' + n).slice(-z);
  }

  var ms = s % 1000;
  s = (s - ms) / 1000;
  var secs = s % 60;
  s = (s - secs) / 60;
  var mins = s % 60;
  var hrs = (s - mins) / 60;

  return pad(hrs) + ':' + pad(mins) + ':' + pad(secs) + '.' + pad(ms, 3);
}

console.log(msToTime(55018))

Example 6: get time in javascript

//HTML
<a onclick="timeNow(test1)" href="#">SET TIME</a>
//Javascript
function timeNow(i) {
  i.value = new Date()
}