How to Check System Uptime on Windows and Mac
macOS Windows

How to Check System Uptime on Windows and Mac


If you want to know how long you have been working on your PC or laptop, you can check this with system uptime. Your system’s operating system keeps a record of the system’s uptime since the last boot or restart. You can check it in both Windows and macOS. In this article, I will tell you how to check the uptime on Windows and Mac.

What is System Uptime?

System uptime is the amount of time that a computer or device has been running without being shut down or rebooted. It is typically measured in days, hours, and minutes. This information can be useful for troubleshooting and monitoring the performance of a device.

How to Check System Uptime on Windows

The most convenient way to find the uptime on Windows is by using Task Manager.

Open Task Manager and go to Performance. Go to the CPU section on the left and you will see the uptime.

How to Check System Uptime on Windows

You can also check the uptime using the command line. Open CMD and type the following command.

systeminfo | find “System Boot Time”

How to Check System Uptime on Windows

It will show you the date and time of your last system boot.

How to Check System Uptime on Mac

If you are using macOS, you can check the system uptime from the System report. For checking System Report, Open System Settings and click General in the left pane. Now select About in the Right pane and scroll down till the end. Here, click the System Report button.

In the System Report and click Software on the left pane. Now you will see the Time since boot in the right pane.

Check System Uptime on Mac

You can also check system uptime on Mac using the Terminal app.

Open Terminal using Spotlight and then type the following command.


It will instantly show you the system uptime.

Check System Uptime on Mac

Why doesn’t the system reset uptime even after a shutdown?

Some operating systems and devices also have a sleep or hibernate mode, where the device’s power state is reduced but not completely shut off, and in this case, the uptime will continue to run. If you have enabled fast startup, the shutdown actually puts the system into hibernation mode. In Windows 10, the fast startup is enabled by default. This may lead to inaccurate uptime. If you want to correct it, you can disable the fast startup.

To disable fast startup on Windows, Open Control Panel. Now got Hardware and Sound > Power options. Select Choose what the power button does. Now see the Shutdown settings section and uncheck the Turn on fast startup option.

Deepanker Verma is the founder of Nerdy Guides. He is a tech blogger, software developer, and gadget freak. He also runs TheWPGuides and Techlomedia.

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