alt Hacker NewsCharitably guessing that if they don't know how long they'll need to keep airspace closed then you give yourself plenty of time and rescind early if necessary, as opposed to continually issuing extensions which could cause confusion.
Charitably guessing that if they don't know how long they'll need to keep airspace closed then you give yourself plenty of time and rescind early if necessary, as opposed to continually issuing extensions which could cause confusion.
Or you say “until further notice”.
Indeterminate end dates are not a new problem.