RunKit + npm: date-fns

var dateFns = require("date-fns") var v='2019-02-26T02:11:56.308466-08:00'; var dateInputFormat='MMM. DD, YYYY, hh:mm a';// you can write every thing here var dateOutputFormat='MMM. DD, YYYY, hh:mm a'; const date = dateFns.parse(v, dateInputFormat, new Date()); dateFns.format(date, dateOutputFormat)