How long has my Mac been on?

Jan 21, 2010 - 8 Comments

If you’re wondering how long your Mac has been turned on and running for, simply launch the Terminal and type the following command into the command line:
This command will report back your system uptime, telling you how long your Mac has been turned on. You will see something like the following:
10:17 up 10 days, 11:02, 4 users, load averages: 0.34 0.29 0.24
As you can see, this Mac has been running for 10 days and 11 hours and 2 minutes.

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Posted by: Manish Patel in Mac OS X, Tips & Tricks


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  1. trash says:

    16:04 up 37 days, 4:59, 23 users, load averages: 0.38 0.33 0.31

  2. Salvador says:

    37 days???? what?? i have 4 days and i think thats good

  3. Ian says:

    There is a way to find out when it was shut down and turned on. It comes up with a list of a bunch of times, not just one.

  4. MacUser says:

    You can find out the uptime thru System Profiler -> Software -> Time since boot.

  5. Milton says:

    Use istat pro widget. It tells gives you uptime and much more.

  6. TP says:

    This is a regular Unix command works in Mac and in any other Unix/Linux outthere.

  7. Dirty White Boy says:

    23Days 21:05

  8. […] using the “last reboot” command instead. Similarly if you’re only looking to see how long a Mac has been powered on, you can use the simple “uptime” command, which will give you […]

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