Show possible time zone for a DateTimeOffset

  
using System;
using System.Collections.ObjectModel;

public class MainClass
{
   public static void Main()
   {
      DateTime thisDate = new DateTime(2010, 3, 10, 0, 0, 0);
      DateTime dstDate = new DateTime(2010, 6, 10, 0, 0, 0);

      DateTimeOffset thisTime = new DateTimeOffset(dstDate, new TimeSpan(-7, 0, 0));
      ShowPossibleTimeZones(thisTime);

   }

   private static void ShowPossibleTimeZones(DateTimeOffset offsetTime)
   {
      TimeSpan offset = offsetTime.Offset;
      Console.WriteLine("{0} could belong to the following time zones:", offsetTime.ToString());
      ReadOnlyCollection<TimeZoneInfo> timeZones = TimeZoneInfo.GetSystemTimeZones();     
      foreach (TimeZoneInfo timeZone in timeZones)
      {
         if (timeZone.GetUtcOffset(offsetTime.DateTime).Equals(offset)){
            Console.WriteLine("   {0}", timeZone.DisplayName);
         }
      }
   } 
}

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Show possible time zone for a DateTimeOffset : DateTimeOffset « Date Time « C# / C Sharp

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