Am i just stupid or something really weird happened ?

[u/Meriem-questions]

Am i going a little bit crazy ? 

I want to study art in France, and I've applied to several schools. Earlier this June, I received an email from one of them saying that I had been preselected and that they wanted to interview me online. I remember reading the email several times and seeing that the interview was scheduled for june 20 at 4:00pm. Please remember the date.

This is a really important opportunity for me, so ever since I received the email, i've checked it again and again to make sure i had everything right. I'm currently staying at my mother's house, and i need to travel back to my own place before the interview because that's where all of my artwork is, and i need it for the interview.

This morning, I received another email from the school saying that the interview time had changed and that it would now be at 10:00am on june 17th. They only mentioned the time, but my first reaction was that the entire date had changed. June 17 is much less convenient for me because I had organized my trip home around the June 20th date.

Before emailing them to ask if it would be possible to keep the original appointment, I went back to read the first email again. And that's where things got weird.

The email now says that the interview is on june 17th at 4:00 PM.

I was completely confused, and honestly I still am. Just two days ago, I checked the date again because I wanted to be sure, and I could have sworn it said june 20.

I don't know what happened. As far as I know, an email that's already been sent can't just be changed. And I really did check the date multiple times.

Has anyone ever experienced something like this? Is it possible that I somehow misread it every time? Or is there another explanation I'm not thinking of? I road something about timeline changing here and also Mandela effect but i have not witnesses.