on moment format it reducing a day code example

Example 1: moment subtract days

var startdate = moment();
startdate = startdate.subtract(1, "days");
startdate = startdate.format("DD-MM-YYYY");

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