var z = document.querySelectorAll(".dt") var off = new Date().getTimezoneOffset() for(var i = 0, m = z.length; i < m; i++) { var t = z[i].innerText.match(/\d+/g) z[i].innerText = new Date(Date.UTC(+t[0], +t[1] - 1, +t[2], +t[3], +t[4], +t[5])).toLocaleString() }