Convert to Datetime - Tarihe Göre Veri Çekme (Entity)
string s = "2015-12-21 13:26";
DateTime sel = DateTime.ParseExact(s, "yyyy-MM-dd HH:mm", CultureInfo.InvariantCulture);
var data = db.Itirafs.OrderByDescending(x => x.itirafDate).Where(x=> EntityFunctions.TruncateTime(x.itirafDate) <= sel) .Take(5);