Interview Scheduled time is correct in Email but wrong time in Outlook

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Hello, I have had some problems scheduling interviews and accepting with Outlook. The interview will have the correct time and time zone when the user that is scheduling it sends out, the interviewers receive the email and the Time and Date are correct but when you open the appointment attachment to accept in outlook it puts on the outlook calendar one hour earlier. I checked this with a few users (all in same central time zone) and it is happening with all of them. Is this an outlook problem?

Thanks, Julie