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 |