working day

working day (plural working days) (mainly UK)

1. Any of those days of a week on which work is done, officially Monday to Friday in many countries (even though many people work on weekends).

   It will take five working days to process your application.

2. The part of a day in which work is done; the number of hours one must work per day for a specified wage.

   Your working day is 8 hours.

   • 1979, Robert Hazard (lyrics and music), “Girls Just Want to Have Fun”, in She's So Unusual‎^[1], performed by Cyndi Lauper, published 1983:

     That's all they really want / Is some fun / When the working day is done / Oh, girls, they wanna have fun / Oh, girls just wanna have...

• workday (mainly US)
• (part of the day): 9 to 5, nine to five
• (day on which work is done): weekday
• (day on which work is done in legal and official usage): business day