moment.js date math code example
Example 1: javascript moment
m = moment('2013-03-01', 'YYYY-MM-DD')
Example 2: moment.js format
moment("20111031", "YYYYMMDD").fromNow(); // 9 years ago
moment("20120620", "YYYYMMDD").fromNow(); // 8 years ago
moment().startOf('day').fromNow(); // 13 hours ago
moment().endOf('day').fromNow(); // in 11 hours
moment().startOf('hour').fromNow(); // 4 minutes ago