Reddit - Timestamp

// ==UserScript==
// @name           Reddit - Timestamp
// @author        gavin19
// @description    Show timestamp in the user bar
// @match          http://*.reddit.com/*
// @include          http://*.reddit.com/*
// @version    0.1
// ==/UserScript==
if(!!document.querySelector('.pref-lang')){
    var timeStamp = document.createElement('span'),
        userBar = document.querySelector('#header-bottom-right'),
        prefLang = document.querySelector('#header-bottom-right .flat-list'),
        dt = new Date(),
        hn = dt.getHours(),
        mn = dt.getMinutes();
    if(hn.toString().length === 1)hn = "0"+hn;
    if(mn.toString().length === 1)mn = "0"+mn;
    timeStamp.textContent = hn+":"+mn+" | ";
    userBar.insertBefore(timeStamp,prefLang);
}