Latency Numbers Every Professor Should Know

### Latency numbers every professor should know
    Email from student ............................ 20 sec
    Person at office door  ......................... 8 min
    Other interruption ............................ 20 min
    Twitter or something seems really important ... 45 min
    Anxiety about deadlines ........................ 1 hr
    A meeting ...................................... 2 hrs
    A meeting you forgot about ..................... 1 day
    A class to teach ............................... 2 days
    Request to review a paper ...................... 3 days
    Request to write evaluation letter ............. 6 days
    Stuff to grade ................................. 1 wk
    Unsolicited time management advice arrives ..... 2 wks
    Fire alarm clears building ..................... 3 wks
    Travel to conference ........................... 5 wks
    Paper deadline ................................. 6 wks
    Grades due .................................... 16 wks
    Grant proposals due ........................... 26 wks
    Summer ......................................... 1 yr
    Sabbatical ..................................... 7 yrs = 2.208e+17 ns

With apologies to the folks who published latency numbers every programmer should know.