• Article

DateTime.FromFileTimeUtc Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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

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

Syntax

'Declaration
Public Shared Function FromFileTimeUtc ( _
    fileTime As Long _
) As DateTime

public static DateTime FromFileTimeUtc(
    long fileTime
)

Parameters

  • fileTime
    Type: System.Int64
    A Windows file time expressed in ticks.

Return Value

Type: System.DateTime
An object that represents a UTC time that is equivalent to the date and time represented by the fileTime parameter.

Exceptions

Exception Condition
ArgumentOutOfRangeException

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

Remarks

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.

The return value is a DateTime whose Kind property is Utc.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.