public static void RestoreSystemTime()
{
SYSTEMTIME st = new SystemTime.SYSTEMTIME();
st.wYear = currYear;
st.wMonth = currMonth;
st.wDay = currDay;
st.wHour = (short)DateTime.UtcNow.Hour;
st.wMinute = (short)DateTime.UtcNow.Minute;
st.wSecond = (short)DateTime.UtcNow.Second;
SetSystemTime(ref st);
}
public static void ChangeSystemTime(int year, int month, int day)
{
SYSTEMTIME st = new SystemTime.SYSTEMTIME();
st.wYear = (short)year;
st.wMonth = (short)month;
st.wDay = (short)day;
st.wHour = (short)DateTime.UtcNow.Hour;
st.wMinute = (short)DateTime.UtcNow.Minute;
st.wSecond = (short)DateTime.UtcNow.Second;
SetSystemTime(ref st);
}