(Avoiding thread drift into the definition of am/pm) the CAA have used a completely ambiguous deadline.
They've not even used their own definition of 'time'.
What is wrong with "will close at 2359 GMT on 11th Nov", or "0001 on 12th Nov"? Or even Z?
Since their ambiguity has prevented full comments, they should surely allow a further, well-defined, well-publicised 24hr extension.
SD