Backup with Incorrect Name

It seems that when I save a backup manually, the name of the file doesn't match the date-stamp. I just tried to save one and it's still the 14th in my timezone. The timestamp on the file is correct but the name is for the 15th.

If this is a duplicate, I apologize. I thought I saw someone else post it but try as i might i could not find the other post.

Yes, I posted the same issue and didn't hear anything back