select * from __InstanceModificationEvent 
where TargetInstance isa "Win32_CurrentTime" 
and TargetInstance.Year=1999 
and TargetInstance.Month=10 
and TargetInstance.Day=14
and TargetInstance.Hour=15 
and TargetInstance.Minute=30 
and TargetInstance.Second=0
and TargetInstance.Interval=1
and TargetInstance.UTCOffset=0