How to find the total hours used on a computer

Updated April 17, 2017

If you want to track the amount of time you or someone else is spending on the computer, you can use Windows Command Prompt to find out how long the computer has been running. This is particularly useful if you want to know how much time you've been spending in front of the monitor, or if you want a general idea of how long your children have been using the PC.

Click "Start," "All Programs," and then click "Accessories." Click "Run." Type "cmd.exe" into the dialogue box. Click "OK."

Type "systeminfo" into Command Prompt, then hit "Enter." Windows will scan your computer for system data. This may take several minutes.

Once the scanning process is complete, look for "System Boot Time" in the list of information displayed to find out how long the computer has been running since last start-up.


You can also use Windows Task Manager to track system up time. Press "CTRL," "ALT" and "ESC" simultaneously to open Task Manager. Click the "Performance" tab, then look for "Up Time."


The system boot time will only tell you how long the computer has been running since start-up. It does not necessarily indicate that the computer has been used constantly for the amount of time displayed.

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About the Author

Ruri Ranbe has been working as a writer since 2008. She received an A.A. in English literature from Valencia College and is completing a B.S. in computer science at the University of Central Florida. Ranbe also has more than six years of professional information-technology experience, specializing in computer architecture, operating systems, networking, server administration, virtualization and Web design.