MORE than a quarter of Londoners regular work overtime that is unpaid, a study has shown.

Each worker’s average unpaid output is worth around �8,000 a year, according to a Trade Union Congress (TUC) analysis.

Those living in London are most likely to work overtime than any other employees in the country.

And the trend is on the up.

There has been an increase of nine per cent doing it since 2009.

Public sector workers in London are more likely than private sector workers to work unpaid overtime.

TUC general secretary Brendan Barber said: “Tough economic conditions are making employers reluctant to recruit new staff, and workers are picking up much of the increasing work load through unpaid hours.”

The union has called today as ‘Work Your Proper Hours Day’ is encouraging all employees to leave work on time.