public DateTime TestUtcToLocal(DateTime dt, int timeZoneId)
 {
     return dt.UtcToLocal(timeZoneId);
 }
 public void UtcToLocalTest()
 {
     var dt = new DateTime(_dateTime.Ticks, DateTimeKind.Utc);
     var local = dt.UtcToLocal("Russian Standard Time");
     Assert.AreEqual(dt.AddHours(4), local);
 }