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Is it possible to use wmic or powershell to find out how long a process has been running for?

If not, is there any other mean to obtain this information from Windows OS?

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Use New-TimeSpan –Start; passing the StartTime property of the process which you want to know how long has been running. Here an example which shows how long notepad has been running:

PS C:\> New-TimeSpan -Start (get-process notepad).StartTime


Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 2
Milliseconds      : 920
Ticks             : 29200041
TotalDays         : 3.379634375E-05
TotalHours        : 0.00081111225
TotalMinutes      : 0.048666735
TotalSeconds      : 2.9200041
TotalMilliseconds : 2920.0041
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    And to do this by process id: New-TimeSpan -Start (get-process -id 4).StartTime, you may have to be an admin to get this information for some processes.
    – Nick
    Nov 8, 2016 at 14:27
  • Kept getting conversion errors so switched to syntax (Get-Process notepad).StartTime | % {New-TimeSpan -Start $_} to get by on Server 2012 R2. What an old server this is!
    – Vomit IT - Chunky Mess Style
    Oct 10, 2021 at 21:22

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