Auction closing and opening time

My auction closing time is 7 hours off. Changeing the gmt in the auction setting doesnt help. The auction closes and send emails out on time i set.
Is there a way to manually change the gmt to the right time zone,
If not is there a way to change the way the opening and close times are displayed on the auction product page not to show the time so they just show the date.
thanks
Is there a way to manually change the gmt to the right time zone,
If not is there a way to change the way the opening and close times are displayed on the auction product page not to show the time so they just show the date.
thanks