DateTime.ToFileTimeUtc() Method in C#
This method is used to convert the value of the current DateTime object to a Windows file time.
Syntax: public long ToFileTimeUtc ();
Return Value: This method returns the value of the current DateTime object expressed as a Windows file time.
Exception: This method will give ArgumentOutOfRangeException if the resulting file time would represent a date and time before 12:00 midnight January 1, 1601 C.E. UTC.
Below programs illustrate the use of DateTime.ToFileTimeUtc() Method:
Example 1:
// C# program to demonstrate the // DateTime.ToFileTimeUtc() // Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { try { // creating object of DateTime DateTime date = new DateTime(2011, 1, 1, 4, 0, 15); // converting current DateTime object // to a Windows file time. // using ToFileTimeUtc() method; long value = date.ToFileTimeUtc(); // Display the TimeSpan Console.WriteLine( "Windows file time(UTC) " + "is {0}" , value); } catch (ArgumentOutOfRangeException e) { Console.Write( "Exception Thrown: " ); Console.Write( "{0}" , e.GetType(), e.Message); } } } |
Output:
Windows file time(UTC) is 129383280150000000
Example 2: For ArgumentOutOfRangeException
// C# program to demonstrate the // DateTime.ToFileTimeUtc() // Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { try { // creating object of DateTime DateTime date = new DateTime(1600, 1, 1, 4, 0, 15); // converting current DateTime // object to a Windows file time. // using ToFileTimeUtc() method; long value = date.ToFileTimeUtc(); // Display the TimeSpan Console.WriteLine( "Windows file time(UTC) 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.datetime.tofiletimeutc?view=netframework-4.7.2