public void FromSwatchInternetTime()
{
TimeZoneInfo utc = TimeZoneInfo.FindSystemTimeZoneById("UTC");
TimeZoneInfo romance = TimeZoneInfo.FindSystemTimeZoneById("Romance Standard Time");
var r1 = EssentialsTime.FromSwatchInternetTime(2020, 8, 17, 315, utc);
var r2 = EssentialsTime.FromSwatchInternetTime(2020, 8, 17, 315, romance);
var r3 = EssentialsTime.FromSwatchInternetTime(new EssentialsDate(2020, 8, 17), 315, utc);
var r4 = EssentialsTime.FromSwatchInternetTime(new EssentialsDate(2020, 8, 17), 315, romance);
var r5 = EssentialsTime.FromSwatchInternetTime(2020, 11, 14, 619, utc);
var r6 = EssentialsTime.FromSwatchInternetTime(2020, 11, 14, 619, romance);
var r7 = EssentialsTime.FromSwatchInternetTime(new EssentialsDate(2020, 11, 14), 619, utc);
var r8 = EssentialsTime.FromSwatchInternetTime(new EssentialsDate(2020, 11, 14), 619, romance);
Assert.AreEqual("2020-08-17T06:33:36.000Z", r1.Iso8601, "#1");
Assert.AreEqual("2020-08-17T08:33:36.000+02:00", r2.Iso8601, "#2");
Assert.AreEqual("2020-08-17T06:33:36.000Z", r3.Iso8601, "#1");
Assert.AreEqual("2020-08-17T08:33:36.000+02:00", r4.Iso8601, "#2");
Assert.AreEqual("2020-11-14T13:51:21.600Z", r5.Iso8601, "#5");
Assert.AreEqual("2020-11-14T14:51:21.600+01:00", r6.Iso8601, "#6");
Assert.AreEqual("2020-11-14T13:51:21.600Z", r7.Iso8601, "#7");
Assert.AreEqual("2020-11-14T14:51:21.600+01:00", r8.Iso8601, "#8");
}