[H] Finding the last login time of a user

[Thane Sherrington]

I'm trying to find out the last time a user logged in.  I'm using:
net user %1 | findstr /B /C:"Last logon"

When I use this on my account, I get:

Last logon                   4/3/2012 6:39 PM

Which is inaccurate.  I only hibernate my computer, and the last time 
I rebooted was yesterday around 2PM.  Any idea what gives?

T