[Dovecot] POP3 logging in wrong timezone

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I have dovecot running on a CentOS 4.4 server, and it is logging
IMAP entries just fine, in the right timezone (GMT+1),
which the server itself is running on (CET),
but pop3 is being logged in GMT 0, so 1 hour too early.
pop3 log-entries are at the right position in the maillog,
but with the wrong time next to it.

Now I've read some messages in this list about this bug
(or feature), but have no clue as to how to solve it.

Anyone?

Thanks in advance,

Ben