資料來源 : Free On-Line Dictionary of Computing

time T
     
        /ti:m T/ An unspecified but usually well-understood time,
        often used in conjunction with a later time T+1.  "We'll meet
        on campus at time T or at Louie's at time T+1" means, in the
        context of going out for dinner: "We can meet on campus and go
        to Louie's, or we can meet at Louie's itself a bit later."
        (Louie's was a Chinese restaurant in Palo Alto that was a
        favourite with hackers.)  Had the number 30 been used instead
        of the number 1, it would have implied that the travel time
        from campus to Louie's is 30 minutes; whatever time T is (and
        that hasn't been decided on yet), you can meet half an hour
        later at Louie's than you could on campus and end up eating at
        the same time.
     
        See also {since time T equals minus infinity}.
     
        [{Jargon File}]
     
        (1994-12-12)