Summary: Learn how to create a self-updating variable. How can I create a variable that will automatically update when I call it?
Use Set-PSBreakPoint to set a variable that will always have the current date and time (or only time):
Set-PSBreakpoint -Variable Time -Mode Read -Action {$Global:Time=(Get-Date).ToShortTimeString();$Global:Time}
$Time
Set-PSBreakpoint -Variable Date -Mode Read -Action {$Global:Date=Get-Date;$Global:Date}
$Date
Note You need to call the variable to kick off the PSBreakPoint action script block the first time.
After that, the information will be up-to-date.
PS C:> $Date
Wednesday, October 29, 2014 10:01:28 PM
PS C:> $Time
10:01 PM
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