All that appears to be a thing is - it's with the film.
Nolan teasers are made for cinemas first, and almost always play better there than online. That's why he can get away with so minimal footage. So bear that in mind heading in...and expectations in check.
"We've been had" dudes, that 11pm UK time was only ever in play because that's when the Dunkirk teaser dropped, as soon as the first screenings started. Your fault for taking it as fact instead of a possibility.