When does your working day start? After the first coffee? Perhaps it's the moment you walk through the office door. On the bus?
What about when you pull on your jacket before leaving the house? Are you at work then? Why all the questions?
A recent decision by US federal mediator J. Chumley ruled that employees of Walt Disney World should be paid for time spent getting dressed as Mickey Mouse or Goofy.
The ruling stems from a complaint filed last year with the National Labour Relations Board by the Service Trades Council, which represents six unions at Disney World.
The complaint alleged that in the autumn of 1999, Disney unfairly stopped paying workers for time spent changing into or out of a costume or uniform, and for the time spent wearing a uniform before reaching a work site.
Employees are allowed to take their uniforms home and dress before coming to work, but many still have to walk long distances or take a bus to their work areas, union officials say.