Capital of Culture – How Many Days to go?

According to the liverpool08 website today there are currently 645 days to go until the Capital of Culture Year.
But if you look at the stavanger2008 website there’s only 621 days to go.
Stavanger is the non-EU Culture Captial for 2008. I know there’s a time difference but 24 days seems a bit excessive.
I’m too lazy to work out who (if either) is correct.