10 mins..

    [It is 2 a.m, and Hacker has just made a phone call to a sleepy Sir Humphrey.]
    Hacker: [hangs up] Oh, damn! I meant to tell him to come and see me about it before Cabinet.
    Annie: Don't ring him now!
    Hacker: No, perhaps you're right. It is a bit late.
    Annie: Give him another ten minutes.