How long uptime

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However, various options let you view the uptime only in days, hours, seconds, or milliseconds, as needed. Each of the load averages is the average of the number of processes in the processor queue over the given length of time. This feature is not currently implemented; all load averages are displayed as 0.

The Task Manager in my system displays my system uptime is around 3days and 1hr. I can honestly tell you that I have used the machine for just 10hrs this week. I rarely put my PC in standby or hibernate as I don't have much work to do with the computer.

I have tried shutting down for a few hours but still found it unchanged. Task Manager shows a piece of information called "Up time". Task Manager calculates "up time" by subtracting the system boot time from the current time. In other words, it is misnamed; it really should be called time since system was started.

It doesn't subtract out the time when the computer was in sleep or hibernation. I've modified the command a little bit to be more explicit and give you both pieces of information:. Elapsed time since Windows booted either after a hybrid shutdown, full shutdown or simple reboot or hibernation.

The legacy definition for uptime is the time that the computer has been running since the kernel initialized itself. Since hybrid boot is just a special type of suspend there was previously suspend to RAM and Hibernate , it doesn't count as "shutting down", because the same instance of the Windows kernel is used.

Hybrid Boot is a new feature in Windows 8 that takes the Hibernate feature we all know and love and improves upon it to bring us faster boot times. In your PC you have multiple sessions, more specifically you have session 0 which is reserved for the kernel session and session 1 which is normally your user session. In traditional implementations of hibernation when you click hibernate your PC takes everything that it currently has in memory RAM and writes it to the hiberfil.

With Hybrid Boot, instead of hibernating both sessions it only hibernates session 0, it then closes your user session. So now when you start your PC back up, it reads session 0 from hiberfil. The result is dramatically faster boot times, with no effect on our user sessions.

I had the same issues. Execute the below command and check the results. You can also store the output of the above commands to a variable. Which can be helpful for scripting purposes. In this tutorial, you have learned various methods for checking Windows uptime. This guide covers the 3 methods like Task manager, command prompt, and PowerShell to get computer uptime.

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