You can adjust the time offset in your profile.
The field allows you to use decimals, it doesn't have to be whole hours, so you can tweak it down to the exact offset you prefer.
http://www.valkyrieforum.com/bbs/index.php?action=profile;u=90;sa=theme(A time offset of 2.261 seems to be adjusting it to be close enough to accurate for me here in central time)