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| ' Visual Basic .NET Document | |
| Option Strict On | |
| ' <Snippet1> | |
| Imports System.Collections.ObjectModel | |
| Module TimeOffsets | |
| Public Sub Main() | |
| Dim thisTime As DateTimeOffset | |
| thisTime = New DateTimeOffset(#06/10/2007#, New TimeSpan(-7, 0, 0)) | |
| ShowPossibleTimeZones(thisTime) | |
| thisTime = New DateTimeOffset(#03/10/2007#, New TimeSpan(-6, 0, 0)) | |
| ShowPossibleTimeZones(thisTime) | |
| thisTime = New DateTimeOffset(#03/10/2007#, New TimeSpan(+1, 0, 0)) | |
| ShowPossibleTimeZones(thisTime) | |
| End Sub | |
| Private Sub ShowPossibleTimeZones(offsetTime As DateTimeOffset) | |
| Dim offset As TimeSpan = offsetTime.Offset | |
| Dim timeZones As ReadOnlyCollection(Of TimeZoneInfo) | |
| 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 | |
| For Each timeZone As TimeZoneInfo In timeZones | |
| ' Compare offset with offset for that date in that time zone | |
| If timeZone.GetUtcOffset(offsetTime.DateTime).Equals(offset) Then | |
| Console.WriteLine(" {0}", timeZone.DisplayName) | |
| End If | |
| Next | |
| Console.WriteLine() | |
| End Sub | |
| End Module | |
| ' 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> | |