VOID
RtlTimeToTimeFields(
IN PLARGE_INTEGER Time,
IN PTIME_FIELDS TimeFields
);
RtlTimeToTimeFields converts system time into a TIME_FIELDS structure.
Callers of RtlTimeToTimeFields can be running at any IRQL if both input buffers are resident.
ExLocalTimeToSystemTime, ExSystemTimeToLocalTime, KeQuerySystemTime, RtlTimeFieldsToTime