Adam wrote:

is there a way to change the time zone of a specific appointment
rather than having to delete everyone's birthday, anniversary etc and
readd them while my computer is in the correct time zone? (there are
more than 100, so i hope so...)

Alas, no, I don't think so. One way might be to export them all to a CSV
file, adjust there, and import back in.
--
Brian Tillman