Check the Time Zone settings in Outlook.

Select the TOOLS menu
Select OPTIONS...
Click the CALENDAR OPTIONS... button
Click the TIME ZONE... button

There is also a little check mark in the time zone area
for DST (Daylight Savings Time). Check to see if that
should be on or off.

Also check your CONTROL PANEL | DATE/TIME
in windows.

How do some meeting requests sent within the same building and on the same
server show up on individuals calendars off by one hour?

example:  i send out the meeting for 4.00pm to 5 people and 3 of them get it
right and 2 of them it shows up at 3.00pm?

Any suggestions?

Thanks
Chris