Momento JS Diferença entre o início e o fim em horas
var duration = moment.duration(end.diff(startTime));
var hours = duration.asHours();
Odd Orangutan
var duration = moment.duration(end.diff(startTime));
var hours = duration.asHours();// moment version => 2.13.0.
const start = moment().subtract(1, 'days');
const end = new Date();
const actual = moment().subtract(1, 'hours');
const test = moment(actual).isBetween(start, end);
console.log(test);
// moment version < 2.13.0.
var startDate = new Date(2013, 1, 12)
, endDate = new Date(2013, 1, 15)
, date = new Date(2013, 2, 15)
, range = moment().range(startDate, endDate);
range.contains(date);