DateTimeOffset.FromFileTime() Method in C#

Last Updated : 26 Feb, 2019

DateTimeOffset.FromFileTime(Int64) Method is used to convert the specified Windows file time to an equivalent local time.

Syntax: public static DateTimeOffset FromFileTime (long fileTime); Here, it takes a Windows file time, expressed in ticks. Return Value: This method returns an object that represents the date and time of fileTime with the offset set to the local time offset. Exception: This method will give ArgumentOutOfRangeException if filetime is less than zero or filetime is greater than DateTimeOffset.MaxValue.Ticks.

Below programs illustrate the use of DateTimeOffset.FromFileTime(Int64) Method: Example 1:

csharp

// C# program to demonstrate the // DateTimeOffset.FromFileTime(Int64) // Method using System; using System.Globalization;  class GFG {      // Main Method     public static void Main()     {         try {              // converts the specified Windows file time             // to an equivalent local time.             // instance using FromFileTime() method             DateTimeOffset value = DateTimeOffset.FromFileTime(10000);              // Display the time             Console.WriteLine("DateTimeOffset is {0}", value);         }          catch (ArgumentOutOfRangeException e)          {             Console.Write("Exception Thrown: ");             Console.Write("{0}", e.GetType(), e.Message);         }     } }

Output:

  DateTimeOffset is 01/01/1601 00:00:00 +00:00

Example 2: For ArgumentOutOfRangeException

csharp

// C# program to demonstrate the // DateTimeOffset.FromFileTime(Int64) // Method using System; using System.Globalization;  class GFG {      // Main Method     public static void Main()     {         try {              // converts the specified Windows file time             // to an equivalent local time.             // instance using FromFileTime() method             DateTimeOffset value = DateTimeOffset.FromFileTime(-1);              // Display the time             Console.WriteLine("DateTimeOffset is {0}", value);         }          catch (ArgumentOutOfRangeException e)          {             Console.Write("Exception Thrown: ");             Console.Write("{0}", e.GetType(), e.Message);         }     } }

Output:

  Exception Thrown: System.ArgumentOutOfRangeException

Reference:

https://docs.microsoft.com/en-us/dotnet/api/system.datetimeoffset.fromfiletime?view=netframework-4.7.2

DateTime.FromFileTimeUtc() Method in C#

RohitPrasad3

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