See Log Start-Up and Shutdown Times in WIN XP & WIN 7

Silahkan... WIN : http://superuser.com/questions/315836/windows-xp-is-it-possible-to-log-startup-and-shutdown-times-in-the-system-event UNIX : http://askubuntu.com/questions/37132/how-do-i-find-the-last-logged-system-boot-and-shutdown-times