dima85,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/humanize-duration/3.20.1/humanize-duration.min.js"></script>
</head>
<body>
<p></p>
<script>
function fn()
{
var m1 = moment();
var m2 = moment([2019, 9, 14, 21]);
document.querySelector("p").innerHTML = humanizeDuration(m2.diff(m1), {language: 'ru'
,units: ['h','m'],round: true
})
}
fn()
</script>
</body>
</html>