Time Since Launch: How long has the Mac been on?

If you want to see how long you've been sitting at the computer, how long it's been since the last restart, or whether your child has already exceeded their computer time for the day, then there is a way to do this under macOS. You can find out how long the Mac has been running from the System Report, which you can access from the About This Mac screen. You can find detailed step-by-step instructions in this guide. Do you have a question or do you know a faster way? Then please leave a comment on the topic.

How long has the Mac been on? You can find the instructions for displaying the up-to-the-minute overview here. This is how you find out how many hours, days or weeks ago macOS was last booted.

How long has the Mac been on? You can find the instructions for displaying the up-to-the-minute overview here. This is how you find out how many hours, days or weeks ago macOS was last booted.

Answer to the question: How long has the Mac been running?

How long has the computer been on? You can find an answer to this question by looking at the macOS system report. With its various areas and information, this seems overwhelming at first. But if you know where to look, you'll find the information you're looking for very quickly. And this is how you do it:

  1. Click on the in the top left Apple symbol () on the menu bar
  2. Choose the first point About this Mac from
  3. Click the button System report... in the window that opens
  4. Now look for in the system report window Software in the left list
  5. In the software overview it shows you on the right time since launch an
In the macOS menu of your Mac you will find the system report under About This Mac. Under the item Software you will find the time since the start. This shows how much time has passed since the last macOS boot. Here you can see 3 hours and 48 minutes as an example.

In the macOS menu of your Mac you will find the system report under About This Mac. Under the item Software you will find the time since the start. This shows how much time has passed since the last macOS boot. Here you can see 3 hours and 48 minutes as an example.

The "time since boot" is displayed either in minutes, in hours and minutes or in days, hours and minutes. So you can see at a glance how much time has passed since the last system start or restart of the Apple Mac. Of course, weeks and months can also be displayed if you don't shut down your Mac, but just put the Apple computer to sleep or close the MacBook when you're not using it.

How often do you restart your Apple Mac, iMac or MacBook? Do you shut down the computer after each use (like me) or do you just restart if the device is acting up or slowing down? Feel free to write me a comment with your handling and your experiences with it! 

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