Tracking Hours with PC On/Off Time for Windows

Martin Brinkmann
Aug 30, 2008
Updated • Sep 19, 2017

My main computer was turned on 294 hours and 15 minutes in the last three weeks which is an average of 14 hours per day. August 27 was the day with the longest computer on time with 21 hours 52 minutes while August 10 was the lowest with 6 hours 23 minutes.

PC On/Off Time offers is an interesting way of discovering how much time a user spends on a computer.

The program is compatible with all versions of Windows, including Windows 10 and Windows Server operating systems.

PC On/Off Time

PC On/Off Time is an interesting time tracking program for Microsoft Windows devices that keeps track of a PC's uptime automatically. The program is portable and can be run from any location without the need to install it first.

The application can be run from any location and displays the logged in time of a user on the system. While logged in time does not necessarily mean that the user was working on the system all the time, it can lead to a solid understanding of a user's work schedule, especially if the computer in question is located in an office building. It can be used for monitoring usage albeit on a basic level.

Once started the time tracking software displays the usage of the first username of the system. A pulldown menu at the top makes it possible to easily switch to another user that is known on the system.

The application presents the hours of a day on the x-axis and the date on the y-axis. The help button in the interface explains how the program is tracking the hours. It is doing so by analyzing the Windows event log. The application is compatible with all Windows NT based operating systems including Windows XP, Windows Vista and Windows Server 2003.

In case you are wondering about my schedule: I changed the timezone of my computer on August 23. Can anyone beat my score? I know some of you guys have your computer turned on 24/7 which would make such a time tracking software rather useless.

Closing Words

PC On/Off Time is a simple program, but you may find it useful, for instance to analyze your work habits, or check the computer usage of your children.

Update: A Pro and Network version is available now as well. These are commercial versions of PC On/Off Time that offer the following advantages:

  • exporting options.
  • monthly overview (instead of 3 week overviews).
  • automatic backup restores deleted events.
  • time unlimited chart on local computer (Pro) / network computer (Network)
  • no nag screens.
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  1. rruben said on August 30, 2008 at 8:23 pm

    24/7 days turned on is an absolute waste of energy. But I guess you download much to justify that :-P

    Anyway I think it’s a good habit to turn off your pc before sleeping.

  2. Rarst said on August 30, 2008 at 6:05 pm

    >I know some of you guys have your computer turned on 24/7 which would make such a time tracking software rather useless.

    I had last rebooted 16 days ago… Useless indeed. :)

    >Any idea where it’s fetching this data from?

    System events log probably.

  3. Amos said on August 30, 2008 at 12:49 pm

    This was completely unreliable for me because I hibernate my computer a lot, and this displays a computer in hibernation mode as ‘PC on’.

    Took me a few moments to work out why it thought I’d been up all night several days in the last 3 weeks.

    Any idea where it’s fetching this data from?

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