Eight of the 10 places in England with the longest work weeks are in London, according to new data from the Office for National Statistics (ONS).
The capital rubs against Elmbridge and Richmondshire in top ten areas of the UK which work the longest hours per week.
SmartSurvey, a UK-based data gathering company, used ONS census data to identify the regions of England where people put in the most overtime hours based on the proportion of people who work 49 or more hours each week.
The anticipated total number of hours worked by locals was divided by the proportion of locals who work full or part-time, yielding the average number of hours per person per week.
With 31.88 per cent of residents working 49 or more hours a week, the City of London tops the list of England's areas with the longest workweeks. This is approximately three times the national average for England, where 11.46 per cent of people work at least 49 hours each week.
The estimated weekly working hours of the average City of London resident are 38.68, which is four hours longer than the 34.03 weekly hours for all of England. The principal central business centre of London is located in the City of London, often known as the City and the Square Mile.
Kensington and Chelsea, where 26.9 per cent of inhabitants work 49 hours or more per week, is the English region with the second-longest workweeks. On the north bank of the Thames in the heart of London, in the neighbourhood of Kensington and Chelsea, the average worker was found to put in 36.17 hours per week.
Elmbridge completes the list of the 10 places in England where people put in the most overtime. The average worker in Elmbridge was expected to work 34.71 hours per week, and 17.76 per cent of inhabitants work 49 hours or more. Elmbridge is located in Surrey, which borders London's southwest.
The projected total hours worked in each category were calculated by dividing the median hour value for each category of work hours by the number of people in that area who fell into each corresponding category.
To calculate the estimated average hours worked, these figures were added together, and the result was divided by the overall number of individuals employed in each location.