OK so as per a previous blog comment, Yes I can confirm a patch exists.
Both of these are for OWA only. They are not for any custom MAPI code youve written that does auto accepts or anything like that. Thats still coming....
So at present theres still an issue with existing appointments created before the OS patch was applied being an hour out. I blogged previously about a local WA company called Beacon Software producing a tool which moves the appointments for you en masse. Theres also another one by a company called Planet Software in Adelaide that has a similar one called Outlook Appointment Mover. Apparently theres also some script from a guy in Canberra that did a similar thing for the Commonwealth Games last year.
Big Disclaimer: I cannot verify or confirm the effectiveness or stability of any of these tools. Im providing information for your own testing purposes and you assume all risk in the event it fails or causes massive issues. Test first!!