i lived overseas and entered in many personal details for contacts such as
birthday days and anniversaries while i was there and would simply account
for the time zone different in my head when i was alerted of the event.

now that i've moved back to north america, outlook still has my
events/appointments registered in the foreign time zone and cause them to
span multiple days.

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...)