C. Northcote Parkinson
Work expands to fill the time
You are not disorganised. The container is too big
Parkinson's Law (1957), chapter 1, first published in The Economist, 19 November 1955
You think you are short of time. This chapter argues the amount of work is set by the time you give it.
What actually happened?
In November 1955 The Economist ran an unsigned piece by a naval historian teaching in Singapore. Its opening sentence finished the argument: work expands so as to fill the time available for its completion. His example is an elderly lady with nothing else to do, who spends an entire day sending one postcard to her niece in Bognor Regis: finding the card, finding her glasses, hunting for the address, drafting the sentence, wondering whether to take an umbrella. A busy man posts the same card in three minutes.
The amount of work is not given
Most advice about time assumes the workload is fixed and the only variable is your speed. Parkinson turns that over. Work behaves like a gas: it expands to whatever container you hand it, and the hand is yours.
The same weekly report is a forty-minute job tonight and a whole afternoon if it is due on Friday.
Change the container, not your willpower
If the expansion is automatic, working faster buys nothing - the same task eats the saved hours back. What works is a smaller container: an earlier deadline, a twenty-five minute meeting, a headcount fixed before the work starts.
Move a deadline from two weeks to three days and what arrives is usually no worse.
The emptiest diary complains loudest
What swells is not only the hours but the weight of the thing. Someone with a single task will brood over it, over-prepare it, revise it six times, and be genuinely exhausted by evening. Busyness tracks load far more weakly than people assume.
The person juggling five things is often the one who answers you fastest.
This is not an argument for a full diary
Booking every slot is the law doing its work for you: once booked, each task swells to fill its slot. He is talking about sizing the job, not about the density of the calendar. White space is the only place you can hold expansion down.
After your most tightly booked week, you cannot name the one thing that actually moved.
How do I use it today?
Where you are: the day ends and none of it was yours, so you blame the shortage of hours.
Ask first: if this were due at three this afternoon, which steps would I cut - and who asked for those steps?
Where it goes wrong: using it to squeeze somebody else's deadline. A smaller container only works if you also cut what is inside it; shrink the date alone and the expansion moves into their evening.
Lines to keep
Give a task an afternoon and it takes an afternoon.
White space is not waste. It is the only brake.
Same situation, other people are asking
Five things are on fire and I am spread across all five.Nothing is due yet and nothing is finished either.Everything is urgent at once · all 2 questions →If this one named what you are going through,
send it to someone who needs it, or keep it somewhere you will find it again.