Well, now I'm even more confused. Here are the dates that are shown to me. uscis tracker: 14, uscis account: 18. noa1 letter "received" says 14, noa1 letter notice says 19. So I have two different "received" dates haha. One on the letter and one on the account. I'm so confused 😭😂 What is everyone else using to calculate theirs?