I'm sure many of you will say it's unnecessary to do this, but I can assure you that in this case, it's not. My wedding is in a small part of Indiana that follows Central Time, while the rest of the state follows Eastern Time. About half of my guests will be from the Eastern Time part of the state and may very well not remember or know about the time difference, and I would hate for them to show up an hour early and have to wait around.
On the invitation I am just going to do something like this: at four o'clock in the afternoon, Central Time.
I want to put a note on the website about the time zone too, but I'm having trouble finding a way to word it that doesn't sound like I'm some pompous know-it-all informing a bunch of idiots of something that should be obvious (this isn't how I feel, I just want to make sure no one forgets). Normally for this kind of thing I default to "Please note that Town Name/County Name is on/follows Central Time." However, right above where I was going to put this I have a line that says "please note the venue considers the basement to be the first floor" (this is important as the ceremony and reception are taking place on different floors and many guests may enter into the basement and have to use the elevator where the basement is 1 rather than B, but if you go in another entrance, you walk up a few stairs outside and enter into the "second floor"). I was thinking of saying "please remember that own Name/County Name is on/follows Central Time." Does that sound ok to you? I feel like it sounds like an exasperated plea but I can't think of another way to say it.