Fellow PowerShell MVP Richard Siddaway had this to say:
Just checked the MSDN documentation on DateTime
"
The DateTime value type represents dates and times with values ranging from 12:00:00 midnight, January 1, 0001 Anno Domini (Common Era) through 11:59:59 P.M., December 31, 9999 A.D. (C.E.)
"
I should have thought to check that myself. You're out of luck with a default/pure PowerShell implementation. You may need to see if something like Perl will do.
