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| // <Snippet1> | |
| using System; | |
| using System.Collections.ObjectModel; | |
| public class TimeOffsets | |
| { | |
| public static void Main() | |
| { | |
| DateTime thisDate = new DateTime(2007, 3, 10, 0, 0, 0); | |
| DateTime dstDate = new DateTime(2007, 6, 10, 0, 0, 0); | |
| DateTimeOffset thisTime; | |
| thisTime = new DateTimeOffset(dstDate, new TimeSpan(-7, 0, 0)); | |
| ShowPossibleTimeZones(thisTime); | |
| thisTime = new DateTimeOffset(thisDate, new TimeSpan(-6, 0, 0)); | |
| ShowPossibleTimeZones(thisTime); | |
| thisTime = new DateTimeOffset(thisDate, new TimeSpan(+1, 0, 0)); | |
| ShowPossibleTimeZones(thisTime); | |
| } | |
| private static void ShowPossibleTimeZones(DateTimeOffset offsetTime) | |
| { | |
| TimeSpan offset = offsetTime.Offset; | |
| ReadOnlyCollection<TimeZoneInfo> timeZones; | |
| Console.WriteLine("{0} could belong to the following time zones:", | |
| offsetTime.ToString()); | |
| // Get all time zones defined on local system | |
| timeZones = TimeZoneInfo.GetSystemTimeZones(); | |
| // Iterate time zones | |
| foreach (TimeZoneInfo timeZone in timeZones) | |
| { | |
| // Compare offset with offset for that date in that time zone | |
| if (timeZone.GetUtcOffset(offsetTime.DateTime).Equals(offset)) | |
| Console.WriteLine(" {0}", timeZone.DisplayName); | |
| } | |
| Console.WriteLine(); | |
| } | |
| } | |
| // This example displays the following output to the console: | |
| // 6/10/2007 12:00:00 AM -07:00 could belong to the following time zones: | |
| // (GMT-07:00) Arizona | |
| // (GMT-08:00) Pacific Time (US & Canada) | |
| // (GMT-08:00) Tijuana, Baja California | |
| // | |
| // 3/10/2007 12:00:00 AM -06:00 could belong to the following time zones: | |
| // (GMT-06:00) Central America | |
| // (GMT-06:00) Central Time (US & Canada) | |
| // (GMT-06:00) Guadalajara, Mexico City, Monterrey - New | |
| // (GMT-06:00) Guadalajara, Mexico City, Monterrey - Old | |
| // (GMT-06:00) Saskatchewan | |
| // | |
| // 3/10/2007 12:00:00 AM +01:00 could belong to the following time zones: | |
| // (GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna | |
| // (GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague | |
| // (GMT+01:00) Brussels, Copenhagen, Madrid, Paris | |
| // (GMT+01:00) Sarajevo, Skopje, Warsaw, Zagreb | |
| // (GMT+01:00) West Central Africa | |
| // </Snippet1> |