I have had the same problem, it has taken me 2 weeks and 96 min on the phone
with customer support for ME to figure it out. now bare with me in
outlook/tools/options/calendar options/ time zones. check what time zone you
have it set. if there is another one with the same gmt select that one (i.e.
mine is central time -0600 there is 2 of these) make sure the one you select
allows you to check the box below it adjust for Daylight savings time. now go
to control panels to date and time properties. under the time zone tab make
sure that you time zone you have selected allow you to check automatically
adjust clock for daylight saving changes. under the date and time tab
manually adjust the clock back one hour if need be (I had to) go back to
outlook and send yourself a test message as this should have fixed the
problem if you need more help with this feel free to give me a
call507-398-8111 Adam