The TUC released new figures on working time yesterday to coincide with Work Your Proper Hours Day. The data shows the number of people working 'extreme' unpaid overtime (i.e., ten hours a week or more over regular working hours) increased by 14,000 to nearly 900,000 last year.
Workers in the teaching and legal professions are most likely to do unpaid overtime - one in five clocked up 17 hours unpaid overtime a week.
Five million people across the UK worked an average of 7 hours 12 minutes unpaid overtime a week.
The value of the unpaid working time? £27.4 billion, or £5,402 per person.