The ship arrives in the future on March 25th, 2245. This would be a Tuesday, but is stated as Sunday.
When the crew arrive at the abandoned compound, it is stated that "Except for us, there's not another life form within a hundred miles of here", yet moments later when they start running from the 'large spinning thing, that moves through the air at high velocity, and throws explosive fireballs from each tip', you can clearly see some Pigeons walking near the base of a lamp-post.