Is there Any Exit to Check SAP User Logoff

Hi Gurus ,

I need check the Logoff time of the SAP User so is there any exit which is fired at the time of Logoff . I know that there is a Exit when User Logs in the System which is SUSR0001 But is there any exit same for Logout . Can any body please help me out in this that how to find the Logout time . Now my current scenario for example when the user Log in to the SAP i am updating the User Name , Date , Time of the User in Z table . And for the Logoff i have put the Logic by Checking the same from USR41 Last_logon time and i am updating the same in my ztable for the last login . But i think its wrong can anybody help me out in this .

Thanks in Advance

Shankar

Edited by: Shankar SB on May 13, 2010 2:59 AM