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GetSystemTimePreciseAsFileTime function

The GetSystemTimePreciseAsFileTime function retrieves the current system date and time with the highest possible level of precision (<1us). The retrieved information is in Coordinated Universal Time (UTC) format.

Syntax


VOID WINAPI GetSystemTimePreciseAsFileTime(
  _Out_ LPFILETIME lpSystemTimeAsFileTime
);

Parameters

lpSystemTimeAsFileTime [out]

Type: LPFILETIME

A pointer to a FILETIME structure that contains the current system date and time in UTC format.

Return value

This function doesn't return a value.

Remarks

Note  This function is best suited for high-resolution time-of-day measurements, or time stamps that are synchronized to UTC. For high-resolution interval measurements, use QueryPerformanceCounter or KeQueryPerformanceCounter. For more info about acquiring high-resolution time stamps, see Acquiring high-resolution time stamps.
 

Requirements

Minimum supported client

Windows 8 [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2012 [desktop apps | Windows Store apps]

Header

WinBase.h (include Windows.h)

Library

Kernel32.lib

DLL

Kernel32.dll

 

 

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