C# | DateTime.ToFileTimeUtc() Method with Example

DateTime.ToFileTimeUtc() Method: Here, we are going to learn about the ToFileTimeUtc() method of DateTime class with example in C#. By IncludeHelp Last updated : August 27, 2023

C# DateTime.ToFileTimeUtc() Method

DateTime.ToFileTimeUtc() method is used to convert the current DateTime object into Windows file time.


long DateTime.ToFileTimeUtc();


  • It does not accept any parameter.

Return value

The return type of this method is long – it returns a long integer value that represents the windows file time.

Example to demonstrate example of DateTime.ToFileTimeUtc() method

using System;

namespace ConsoleApplication1
    class Program
        static void Main(string[] args)
            //creating an object of DateTime class
            //and, initializing it with the current time 
            //using "Now"           
            DateTime dt = DateTime.Now;

            //converting to windows file time from current date time
            long time = dt.ToFileTimeUtc();

            //printing the current date & time
            Console.WriteLine("The current time is: " + dt.ToString());
            //printing time in windows file time 
            Console.WriteLine("Windows file time: " + time);

            //just to print a new line


RUN 1:
The current time is: 10/17/2019 1:17:21 PM
Windows file time: 132157918412997330

RUN 2:
The current time is: 10/17/2019 1:17:45 PM
Windows file time: 132157918652078310

If we run program multiple times, the output will be different.

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