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GetSystemTimePreciseAsFileTime function (sysinfoapi.h)

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 GetSystemTimePreciseAsFileTime(
  [out] LPFILETIME lpSystemTimeAsFileTime
);

Parameters

[out] lpSystemTimeAsFileTime

Type: LPFILETIME

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

Return value

None

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

Requirement Value
Minimum supported client Windows 8 [desktop apps | UWP apps]
Minimum supported server Windows Server 2012 [desktop apps | UWP apps]
Target Platform Windows
Header sysinfoapi.h (include Windows.h)
Library Kernel32.lib
DLL Kernel32.dll