private static void TestDaylightChangesYear(TzTimeZone zone, int year, int expectedStartMonth, int expectedStartDay, int expectedStartYear, int expectedEndMonth, int expectedEndDay, int expectedEndYear)
{
DaylightTime daylight = zone.GetDaylightChanges(year);
Console.WriteLine(daylight.Start);
Console.WriteLine(daylight.End);
AssertEqualDaylightPosition(daylight.Start, expectedStartMonth, expectedStartDay, expectedStartYear);
AssertEqualDaylightPosition(daylight.End, expectedEndMonth, expectedEndDay, expectedEndYear);
}
private static void TestToLocalTime(TzTimeZone zone)
{
Console.WriteLine("--------- Converting UTC to local time -------------");
Console.WriteLine("DST on rule <= 2006 for America/Chicago: Apr Sun>=1 2:00 (2am (8:00 UTC) becomes 3am)");
Console.WriteLine("zone.ToLocalTime('2006-04-02 07:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-04-02 07:00")) + "'");
Assert.AreEqual(1, zone.ToLocalTime(new DateTime(DateTime.Parse("2006-04-02 06:00").Ticks, DateTimeKind.Utc)).Hour);
Assert.AreEqual(2, zone.ToLocalTime(new DateTime(DateTime.Parse("2006-04-02 07:00").Ticks, DateTimeKind.Utc)).Hour);
Console.WriteLine("zone.ToLocalTime('2006-04-02 07:30'): '" + zone.ToLocalTime(DateTime.Parse("2006-04-02 07:30")) + "'");
Assert.AreEqual(2, zone.ToLocalTime(new DateTime(DateTime.Parse("2006-04-02 07:30").Ticks, DateTimeKind.Utc)).Hour);
Console.WriteLine("zone.ToLocalTime('2006-04-02 08:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-04-02 08:00")) + "'");
Assert.AreEqual(3, zone.ToLocalTime(new DateTime(DateTime.Parse("2006-04-02 08:00").Ticks, DateTimeKind.Utc)).Hour);
Console.WriteLine("zone.ToLocalTime('2006-04-02 08:30'): '" + zone.ToLocalTime(DateTime.Parse("2006-04-02 08:30")) + "'");
Assert.AreEqual(3, zone.ToLocalTime(new DateTime(DateTime.Parse("2006-04-02 08:30").Ticks, DateTimeKind.Utc)).Hour);
Console.WriteLine("zone.ToLocalTime('2006-04-02 09:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-04-02 09:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-04-02 09:30'): '" + zone.ToLocalTime(DateTime.Parse("2006-04-02 09:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-04-02 10:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-04-02 10:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-05-10 03:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-05-10 03:00")) + "'");
Console.WriteLine("DST off rule <= 2006 for America/Chicago: Nov Sun>=1 2:00 (2am (7:00 UTC) becomes 1am)");
Console.WriteLine("zone.ToLocalTime('2006-10-29 06:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-10-29 06:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-10-29 06:30'): '" + zone.ToLocalTime(DateTime.Parse("2006-10-29 06:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-11-04 07:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-11-04 07:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-11-04 07:30'): '" + zone.ToLocalTime(DateTime.Parse("2006-11-04 07:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-11-04 08:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-11-04 08:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-11-04 08:30'): '" + zone.ToLocalTime(DateTime.Parse("2006-11-04 08:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-11-04 09:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-11-04 09:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2006-12-12 03:00'): '" + zone.ToLocalTime(DateTime.Parse("2006-12-12 03:00")) + "'");
Console.WriteLine("DST on rule >= 2007 for America/Chicago: Mar Sun>=8 2:00 (2am (8:00 UTC) becomes 3am)");
Console.WriteLine("zone.ToLocalTime('2007-03-11 07:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-03-11 07:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-03-11 07:30'): '" + zone.ToLocalTime(DateTime.Parse("2007-03-11 07:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-03-11 08:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-03-11 08:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-03-11 08:30'): '" + zone.ToLocalTime(DateTime.Parse("2007-03-11 08:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-03-11 09:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-03-11 09:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-03-11 09:30'): '" + zone.ToLocalTime(DateTime.Parse("2007-03-11 09:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-03-11 10:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-03-11 10:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-05-10 03:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-05-10 03:00")) + "'");
Console.WriteLine("DST off rule >= 2007 for America/Chicago: Nov Sun>=1 2:00 (2am (7:00 UTC) becomes 1am)");
Console.WriteLine("zone.ToLocalTime('2007-11-04 06:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-11-04 06:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-11-04 06:30'): '" + zone.ToLocalTime(DateTime.Parse("2007-11-04 06:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-11-04 07:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-11-04 07:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-11-04 07:30'): '" + zone.ToLocalTime(DateTime.Parse("2007-11-04 07:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-11-04 08:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-11-04 08:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-11-04 08:30'): '" + zone.ToLocalTime(DateTime.Parse("2007-11-04 08:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-11-04 09:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-11-04 09:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2007-12-12 03:00'): '" + zone.ToLocalTime(DateTime.Parse("2007-12-12 03:00")) + "'");
Console.WriteLine("DST on rule >= 2007 for America/Chicago: Mar Sun>=8 2:00 (2am (8:00 UTC) becomes 3am)");
Console.WriteLine("zone.ToLocalTime('2008-03-09 07:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-03-09 07:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-03-09 07:30'): '" + zone.ToLocalTime(DateTime.Parse("2008-03-09 07:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-03-09 08:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-03-09 08:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-03-09 08:30'): '" + zone.ToLocalTime(DateTime.Parse("2008-03-09 08:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-03-09 09:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-03-09 09:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-03-09 09:30'): '" + zone.ToLocalTime(DateTime.Parse("2008-03-09 09:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-03-09 10:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-03-09 10:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-05-10 03:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-05-10 03:00")) + "'");
Console.WriteLine("DST off rule >= 2007 for America/Chicago: Nov Sun>=1 2:00 (2am (7:00 UTC) becomes 1am)");
Console.WriteLine("zone.ToLocalTime('2008-11-02 06:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-11-02 06:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-11-02 06:30'): '" + zone.ToLocalTime(DateTime.Parse("2008-11-02 06:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-11-02 07:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-11-02 07:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-11-02 07:30'): '" + zone.ToLocalTime(DateTime.Parse("2008-11-02 07:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-11-02 08:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-11-02 08:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-11-02 08:30'): '" + zone.ToLocalTime(DateTime.Parse("2008-11-02 08:30")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-11-02 09:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-11-02 09:00")) + "'");
Console.WriteLine("zone.ToLocalTime('2008-12-12 03:00'): '" + zone.ToLocalTime(DateTime.Parse("2008-12-12 03:00")) + "'");
}
private static void AssertIsDaylightSavingsTime(TzTimeZone zone, string dt, bool expectIsDaylightSavingsTime)
{
Assert.AreEqual(expectIsDaylightSavingsTime, zone.IsDaylightSavingTime(DateTime.Parse(dt)));
}
private static void CheckToUniversalTime(TzTimeZone zone, string year)
{
// 2007-3-11 @ 2am
Assert.IsFalse(zone.IsDaylightSavingTime(DateTime.Parse(year + "-03-10")));
Assert.IsFalse(zone.IsDaylightSavingTime(DateTime.Parse(year + "-03-11")));
Assert.IsTrue(zone.IsDaylightSavingTime(DateTime.Parse(year + "-03-12")));
Assert.IsFalse(zone.IsDaylightSavingTime(DateTime.Parse(year + "-03-11 01:00")));
Assert.IsFalse(zone.IsDaylightSavingTime(DateTime.Parse(year + "-03-11 01:59")));
Assert.IsTrue(zone.IsDaylightSavingTime(DateTime.Parse(year + "-03-11 02:00")));
Assert.IsTrue(zone.IsDaylightSavingTime(DateTime.Parse(year + "-03-11 02:01")));
Console.WriteLine("DST on rule >= " + year + " for America/Chicago: Mar Sun>=8 2:00 (2am (8:00 UTC) becomes 3am)");
Console.WriteLine("zone.ToUniversalTime('" + year + "-03-11 01:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-03-11 01:00")) + "'");
Assert.AreEqual(7, zone.ToUniversalTime(DateTime.Parse(year + "-03-11 01:00")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-03-11 01:30'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-03-11 01:30")) + "'");
Assert.AreEqual(7, zone.ToUniversalTime(DateTime.Parse(year + "-03-11 01:30")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-03-11 02:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-03-11 02:00")) + "'");
Assert.AreEqual(7, zone.ToUniversalTime(DateTime.Parse(year + "-03-11 02:00")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-03-11 02:30'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-03-11 02:30")) + "'");
Assert.AreEqual(7, zone.ToUniversalTime(DateTime.Parse(year + "-03-11 02:30")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-03-11 03:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-03-11 03:00")) + "'");
Assert.AreEqual(8, zone.ToUniversalTime(DateTime.Parse(year + "-03-11 03:00")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-03-11 03:30'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-03-11 03:30")) + "'");
Assert.AreEqual(8, zone.ToUniversalTime(DateTime.Parse(year + "-03-11 03:30")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-03-11 04:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-03-11 04:00")) + "'");
Assert.AreEqual(9, zone.ToUniversalTime(DateTime.Parse(year + "-03-11 04:00")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-05-10 03:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-05-10 03:00")) + "'");
Assert.AreEqual(8, zone.ToUniversalTime(DateTime.Parse(year + "-05-11 03:00")).Hour);
// 2007-11-4 @ 2 am
Assert.IsTrue(zone.IsDaylightSavingTime(DateTime.Parse(year + "-11-4")));
Assert.IsTrue(zone.IsDaylightSavingTime(DateTime.Parse(year + "-11-4")));
Assert.IsFalse(zone.IsDaylightSavingTime(DateTime.Parse(year + "-11-5")));
Assert.IsTrue(zone.IsDaylightSavingTime(DateTime.Parse(year + "-11-4 01:00")));
Assert.IsTrue(zone.IsDaylightSavingTime(DateTime.Parse(year + "-11-4 01:59")));
Assert.IsFalse(zone.IsDaylightSavingTime(DateTime.Parse(year + "-11-4 02:00")));
Assert.IsFalse(zone.IsDaylightSavingTime(DateTime.Parse(year + "-11-4 02:01")));
Console.WriteLine("DST off rule >= " + year + " for America/Chicago: Nov Sun>=1 2:00 (2am (7:00 UTC) becomes 1am)");
Console.WriteLine("zone.ToUniversalTime('" + year + "-11-04 00:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-11-04 00:00")) + "'");
Assert.AreEqual(5, zone.ToUniversalTime(DateTime.Parse(year + "-11-04 00:00")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-11-04 01:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-11-04 01:00")) + "'");
Assert.AreEqual(6, zone.ToUniversalTime(DateTime.Parse(year + "-11-04 01:00")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-11-04 01:30'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-11-04 01:30")) + "'");
Assert.AreEqual(6, zone.ToUniversalTime(DateTime.Parse(year + "-11-04 01:30")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-11-04 02:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-11-04 02:00")) + "'");
Assert.AreEqual(8, zone.ToUniversalTime(DateTime.Parse(year + "-11-04 02:00")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-11-04 02:30'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-11-04 02:30")) + "'");
Assert.AreEqual(8, zone.ToUniversalTime(DateTime.Parse(year + "-11-04 02:30")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-11-04 03:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-11-04 03:00")) + "'");
Assert.AreEqual(9, zone.ToUniversalTime(DateTime.Parse(year + "-11-04 03:00")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-11-04 03:30'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-11-04 03:30")) + "'");
Assert.AreEqual(9, zone.ToUniversalTime(DateTime.Parse(year + "-11-04 03:30")).Hour);
Console.WriteLine("zone.ToUniversalTime('" + year + "-12-12 03:00'): '" + zone.ToUniversalTime(DateTime.Parse(year + "-12-12 03:00")) + "'");
Assert.AreEqual(9, zone.ToUniversalTime(DateTime.Parse(year + "-12-04 03:00")).Hour);
}
/// <summary>
/// Converts a datetime from fromTimeZone to UTC
/// </summary>
private static DateTime ConvertToUtc(DateTime datetime, TzTimeZone fromTimeZone)
{
return fromTimeZone.ToUniversalTime(datetime);
}
/// <summary>
/// Parses the specified STR.
/// </summary>
/// <param name="str">The STR.</param>
/// <param name="localTimeZone">The local time zone.</param>
/// <returns></returns>
public static TzDateTime Parse(string str, TzTimeZone localTimeZone)
{
TzDateTime result;
if (!DoParse(str, localTimeZone, out result))
{
ThrowInvalidFormatException(str);
}
return result;
}
private static bool DoParse(string str, TzTimeZone localTimeZone, out TzDateTime result)
{
result = null;
if (string.IsNullOrEmpty(str))
{
throw new ArgumentNullException("str");
}
Match m;
int matchIndex = RegexUtilities.MatchAny(str, out m,
FormatYear,
FormatYearAndMonth,
FormatComplete,
FormatCompleteHM,
FormatCompleteHMS,
FormatCompleteHMSF);
int year = 0, month = 1, day = 1, hours = 0, minutes = 0, seconds = 0, millisecond = 0;
DateTimeKind kind = DateTimeKind.Local;
TzTimeZone timezone = localTimeZone;
if (matchIndex != -1)
{
if (matchIndex >= 0)
{
year = int.Parse(RegexUtilities.GetCapture(m, 1));
}
if (matchIndex >= 1)
{
month = int.Parse(RegexUtilities.GetCapture(m, 2));
}
if (matchIndex >= 2)
{
day = int.Parse(RegexUtilities.GetCapture(m, 3));
}
if (matchIndex >= 3)
{
hours = int.Parse(RegexUtilities.GetCapture(m, 4));
minutes = int.Parse(RegexUtilities.GetCapture(m, 5));
// At this level, we also expect a time zone designator
kind = DateTimeKind.Utc;
string tzd = RegexUtilities.GetLastCapture(m, 2);
if (tzd == UtcZuluIdentifier.ToString())
{
timezone = TzTimeZone.ZoneUTC;
}
else
{
timezone = TzTimeZone.GetTimeZoneByOffset(RegexUtilities.GetLastCapture(m, 1));
}
}
if (matchIndex >= 4)
{
seconds = int.Parse(RegexUtilities.GetCapture(m, 6));
}
if (matchIndex >= 5)
{
millisecond = int.Parse(RegexUtilities.GetCapture(m, 7));
}
result = new TzDateTime(year, month, day, hours, minutes, seconds, millisecond, kind, timezone);
return true;
}
return false;
}
/// <summary>
/// Tries the parse.
/// </summary>
/// <param name="str">The STR.</param>
/// <param name="localTimeZone">The local time zone.</param>
/// <param name="dateTime">The date time.</param>
/// <returns></returns>
public static bool TryParse(string str, TzTimeZone localTimeZone, out TzDateTime dateTime)
{
return DoParse(str, localTimeZone, out dateTime);
}
/// <summary>
/// Gets a new object representing the time zone with the
/// name <paramref name="tzName"/> or null if none can be found.
/// These <see cref="PublicDomain.TzTimeZone"/> instances are
/// not cached, so constantly calling this method will continuously
/// create new <see cref="PublicDomain.TzTimeZone"/> objects.
/// </summary>
/// <param name="tzName">Name of the time zone.</param>
/// <returns>null if no time zone can by found or a TzTimeZone object</returns>
public static TzTimeZone GetTimeZone(string tzName)
{
TzTimeZone result = null;
TzZoneInfo zoneInfo;
if (!string.IsNullOrEmpty(tzName))
{
try
{
s_zonesLock.AcquireReaderLock(-1);
if (Zones.TryGetValue(tzName, out zoneInfo))
{
result = new TzTimeZone(zoneInfo);
}
else
{
LockCookie writerCookie = s_zonesLock.UpgradeToWriterLock(-1);
try
{
if (Zones.TryGetValue(tzName, out zoneInfo))
{
result = new TzTimeZone(zoneInfo);
}
else
{
if (zoneInfo != null)
{
// Found the time zone
result = new TzTimeZone(zoneInfo);
s_zones[tzName] = zoneInfo;
}
}
}
finally
{
s_zonesLock.DowngradeFromWriterLock(ref writerCookie);
}
}
}
finally
{
s_zonesLock.ReleaseReaderLock();
}
}
return result;
}