DateTime.FromFileTimeUtc(Int64) Method

Definition

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

public:
 static DateTime FromFileTimeUtc(long fileTime);
public static DateTime FromFileTimeUtc (long fileTime);
static member FromFileTimeUtc : int64 -> DateTime
Public Shared Function FromFileTimeUtc (fileTime As Long) As DateTime

Parameters

fileTime
Int64

A Windows file time expressed in ticks.

Returns

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

Exceptions

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

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

Applies to

See also