function calcTime(db_time){
var db = new Date(db_time);
var z = db.getTime() - 3600000 * (8 + db.getTimezoneOffset() / 60);
var l = new Date(z);
var r = l.getFullYear() + "-" + l.getMonth() + "-" + l.getDate();
r += " " + l.toTimeString().replace(/GMT\S+\s/, "");
return r;
}