Within Powershell you can also see when a LOCAL user was last logged in.
This can be done with the following one-liner:
$([ADSI]"WinNT://$env:COMPUTERNAME").Children | where {$_.SchemaClassName -eq 'user'} | ft name,lastlogin
example output:
name lastlogin ---- --------- {localadmin} {28/09/2016 08:57:19} {nx} {05/01/2017 19:52:58} {Visitor}