Did you know that the posted time that shows for your post is the time you actually began typing the post and not the time you actually hit "publish post"? Which means, oddly enough, that the post before my last post was actually published after my last post but showed up below my last post because I didn't hit "publish post" until after I'd published my last post.
Did you catch all that?
What I'm trying to say is, scroll down, because there's a new post that arrived after the "my tweet" post.
[Edit - Thanks to Ciara for pointing out that you can change the publish post time by expanding the post options while you're creating a post.]