FromFileTimeUtc Method

DateTime.FromFileTimeUtc Method (Int64)


Converts the specified Windows file time to an equivalent UTC time.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

public static DateTime FromFileTimeUtc(
	long fileTime


Type: System.Int64

A Windows file time expressed in ticks.

Return Value

Type: System.DateTime

An object that represents the UTC time equivalent of the date and time represented by the fileTime parameter.

Exception Condition

fileTime is less than 0 or represents a time greater than MaxValue.

A Windows file time is a 64-bit value that represents the number of 100-nanosecond intervals that have elapsed since 12:00 midnight, January 1, 1601 A.D. (C.E.) Coordinated Universal Time (UTC). Windows uses a file time to record when an application creates, accesses, or writes to a file.

The fileTime parameter specifies a file time expressed in 100-nanosecond ticks.

Starting with the .NET Framework version 2.0, the return value is a DateTime whose Kind property is Utc.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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