Oh, and I did do some research into this. It is possible to do, but I don't find the solution to be any indication of how great Powershell is compared to the other UNIX shells. Yeah, there's a system function to convert this, but again, we're supposed to be making it easier for administrators to do their work, not requiring them to do research into date/time conversions from a "standard" tool.
It is good, as far as I'm soncerned, that Windows system administrators now have a decent shell to work with in their day-to-day activities, and I laud Microsoft for this. In my shop, it has been hard to get administrators to script *anything* before Powershell, as they were not willing to use Perl, Awk, Python, etc. And Powershell does have some interesting innovations. But it still strikes me as odd how a discussion of UNIX shells and their evolution turned into an argument about how great Powershell is compared to all the other methods people have used to perform system administration activities.