Get local Date string and time string

You can use the local date string as is, just fiddle the hours, minutes and seconds.

This example pads single digits with leading 0's and adjusts the hours for am/pm.

function timenow() {
  var now = new Date(),
    ampm = 'am',
    h = now.getHours(),
    m = now.getMinutes(),
    s = now.getSeconds();
  if (h >= 12) {
    if (h > 12) h -= 12;
    ampm = 'pm';
  }

  if (m < 10) m = '0' + m;
  if (s < 10) s = '0' + s;
  return now.toLocaleDateString() + ' ' + h + ':' + m + ':' + s + ' ' + ampm;
}
console.log(timenow());

If you build up the string using vanilla methods, it will do locale (and TZ) conversion automatically.

E.g.

var dNow = new Date();
var s = ( dNow.getMonth() + 1 ) + '/' + dNow.getDate() + '/' + dNow.getFullYear() + ' ' + dNow.getHours() + ':' + dNow.getMinutes();