Here we run lbolt, it produces the last boot time and the time the system has been up in days. $ lbolt Last booted at: Tue Apr 6 13:07:42 2004 up: 132.21 days I've yet to break the 365 day mark for my home system, as every Janurary Sydney is thrashed by storms - with the inevitable yearly blackout. Yes, I need a UPS. WARNING: use of this tool may encourage you to never reboot on pain of death to save your precious uptime (and hence never apply kernel patches!).