[рони]

weirdjava,

String.prototype.toHHMMSS = function () {
    return new Date(this * 1000 + (new Date).getTimezoneOffset() * 60 * 1000).toLocaleString('ru', {
        hour: '2-digit',
        minute: '2-digit',
        second: '2-digit'
      })
}
alert('132'.toHHMMSS());