The definition, expanded
The law describes what happens to slack. When a deadline is far away, the work grows: more research, more options, more polishing, more waiting. The task doesn’t need the extra time; it absorbs it. For personal planning, the practical reading is that the time you assign to a task becomes its size.
Where it comes from
C. Northcote Parkinson, a British naval historian, opened a satirical essay in The Economist on November 19, 1955 with the line about work expanding. His real target was bureaucracy: he argued that officials multiply subordinates and create work for each other, so staff numbers grow regardless of workload, using the British Admiralty and Colonial Office as examples. The productivity reading came later.
How to use it
- Set the time based on what the task needs, not on the deadline.
- Put that time on the calendar as a fixed slot.
- Define “done” before you start, so the work can’t quietly grow.
- Move the internal deadline earlier than the real one.
- Use the time saved for the next task, not for more polish.
An example
A client asks Alex for a moodboard “by next Friday”. Without a plan, it would sit in the background all week, with an hour here and there of collecting images. Instead:
- Tuesday 14:00–15:30 · Moodboard for Client B, 15 images, 5 colors #Clients
- Wednesday 09:00–09:20 · Final check, send link
The board goes out on Wednesday. Friday stays free.
When it doesn’t hold
Parkinson wrote satire, not research; it’s an observation, not a measured law. Squeezing time works for tasks with flexible scope, like drafts, research and admin. It doesn’t work for tasks with a fixed minimum, like a code review or a tax form. Pushed too far, artificial deadlines produce rushed work and stress. It also pulls against the planning fallacy: too-tight estimates are the other common failure.
Parkinson’s law in Needt
Give tasks an estimate and a deadline separately. The estimate is how long it should take; the deadline is when it’s due. Type client moodboard, 90 min, by Friday #Clients and auto-scheduling places a 90-minute slot early in your free time, not on Thursday night. You get the time limit without inventing a fake deadline. The moodboard itself can live in Boards and be shared with the client.
Agent prompt: “Schedule everything due this week as early as my calendar allows and keep Friday afternoon empty.”
