Calendar appointments from PST two hours late

[colinmca]

We're migrating to Zimbra from a POP3 / Outlook setup and have come up against an issue - some (most) calendar appointments are appearing two hours later than they should be For example, a 12:30 appointment in Outlook appears at 14:30 in the Zimbra client. Some recurring appointments do not appear to be affected.

So far this has happened for more than one user. I am running the outlook PST repair tool on the file before import to make sure I'm not importing corrupt information. We're using the latest version of the import utility.

I have searched the forum and google to no avail, can anybody help please ?