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What is the simplest way to find out how long a computer is turned on Windows?

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4 Answers

up vote 10 down vote accepted
  • Run command line
  • Type Systeminfo

  • Find "System Up Time"

    Days: 10 Hours: 10 Minutes: 10 Seconds: 10

UPTime project

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>systeminfo | find "Boot Time" – svandragt Jul 23 '09 at 9:18
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for me the simplest way now is > systeminfo | find "Up Time" – Juozas Kontvainis Jul 23 '09 at 9:29
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Doesn't work on Vista (use already included uptime.exe instead). – mwore Jul 23 '09 at 12:50
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Also note you can use this to query a remote machine as systeminfo /S *machinename*` | find "Up Time"` – GAThrawn Oct 14 '09 at 10:41
On Windows 7, it shows "System Boot Time" but not "System Up Time". – Keith Thompson Dec 28 '11 at 22:20
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up vote 3 down vote

Open the commandprompt and type:

net stats srv | find "Statistics"

Source (MS KB). Edit: Actually this will tell you the date and time when the pc was up from, - not the duration.

Example output:

>net stats srv | find "Statistics"
Server Statistics for \\4IFS-SANDER
Statistics since 22/07/2009 10:14:14
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I'm not sure if this info is correct now, when I use MicTech's and KovBal's solution I get this: >systeminfo | find "Boot Time" System Boot Time: 23/07/2009, 02:22:27 – svandragt Jul 23 '09 at 9:17
On Vista it returns "Statistics since 1.1.1980 00:00:00" (use already included uptime.exe instead) – mwore Jul 23 '09 at 12:52
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up vote 3 down vote

there is great command line tool from Microsoft uptime.exe:

http://www.microsoft.com/downloads/details.aspx?FamilyID=BC18FFDB-D6FE-400B-B892-94783AE44C91&displaylang=en

good thing with this tool is it works really fast.

Uptime [server] [/s ] [/a] [/d:mm/dd/yyyy | /p:n] [/heartbeat] [/? | /help]
server Name or IP address of remote server to process.
/s Display key system events and statistics.
/a Display application failure events (assumes /s).
/d: Only calculate for events after mm/dd/yyyy.
/p: Only calculate for events in the previous n days.
/heartbeat Turn on/off the system's heartbeat
/? Basic usage.
/help Additional usage information.

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up vote 1 down vote

If you have the Windows Server 2000 or 2003 resource kits try

srvinfo -ns [\\\server] | Findstr "Time"

Note: Srvinfo.exe will not run on a 64-bit versions of Windows, due to it being 16-bit.

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