TurnedOnTimesView analyses the Windows event log, detecting the time ranges when your computer was turned on. For those time frames, startup/shutdown time, duration, shutdown reason, type and process, as well as shutdown code are all displayed.

The program works on your local computer as well as from remote computer on your network if you have privileges to view the Windows event log remotely. Although primarily for system administrators, it can also help track down system issues and in testing.