Powershell: Find difference between two Dates

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We can easily find difference between two dates with powershell. We can get difference in Days, Hours, Minutes and Seconds.

Total Days between two dates

The below powershell script show the total number of days between two dates.

$FromDate  =[DateTime] "04/20/2015"
$ToDate      =[DateTime] "07/07/2015"

($ToDate - $FromDate).TotalDays

Total Hours between two dates

The below powershell script show the total number of hours between two times.

$FromDate =[DateTime] "07/05/2015"
$ToDate     =[DateTime] "07/07/2015"

($ToDate - $FromDate).TotalHours

Total Minutes between two times

$FromDate = [DateTime] "07/07/2015 1:47:31 PM"
$ToDate     = [DateTime] "07/07/2015 3:47:31 PM"

($ToDate - $FromDate).TotalMinutes

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2 thoughts on “Powershell: Find difference between two Dates”

  1. Hi everyone , I am using the following code to display some values , the issue I am having is , the subtraction between two dates as in the expression [datetime]::Now.AddDays(-365) – $_.PasswordLastSet).Days
    is evaluating to null in my data, what could be the reason, how to fix this code ?

    Get-ADUser -Filter * -Properties PasswordLastSet, Mail -SearchBase $searchBase |
    Where-Object{
    ([datetime]::Now.AddDays(-365) – $_.PasswordLastSet).Days -in @(” “,364, 350, 354, 340, 335,’ ‘,”,””)
    }|
    Select-Object name, PasswordLastSet,@{n=’DaysUntilExpired’;e={(([datetime]::Now.AddDays(365) – [datetime]::$_.PasswordLastSet).Day).days}} |
    Add-Content -Path C:\Temp\PasswordExpList.txt

    Reply

    • You might have received this problem with the null value in PasswordLastSet property. You can filter users who have PasswordLastSet value not null before applying this logic.

      Ex: Get-ADUser -Filter * -Properties PasswordLastSet, Mail -SearchBase $searchBase |
      Where-Object { $_.PasswordLastSet -ne $null}

      Reply

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