Are you seeing the same thing as reported in the thread
Calendar View Distorted with New Update? (That thread includes a couple of screen shots.) If so, it is a problem with older versions of Internet Explorer, and that thread gives you some suggestions.
However, that problem doesn't explain why you might be seeing a different unit. I'd suggest that you first work on getting a view that is not garbled, and then you should be in a better position to determine if there is a problem with the displayed unit.
Questions that can benefit the larger community should be asked in a public forum, not a private message.