This is the Hours Worked data (KS604) from the 2011 Census. The data provides the hours worked by all residents aged 16-74 in employment the week before the census.
The question was:
In your main job, how many hours a week (including paid and unpaid overtime) do you usually work?
15 or less
49 or more
The 2011 census in England and Wales took place on 27th March 2011. It provides a snapshot of the population and its characteristics on that day.
Further information about the census estimates, including details about the methodology is available here: http://www.ons.gov.uk/ons/guide-method/census/2011/index.html
Employed (In employment)
A person aged 16 to 74 is defined as employed (or in employment) if in the week before the census they carried out at least one hour's paid work, either as an employee or self-employed. This includes casual or temporary work, on a government-sponsored training scheme, doing paid or unpaid work for their own or family business, being away from work ill, on maternity leave, or on holiday or temporarily laid off.
Working full-time is defined as working 31 hours or more per week. This applies to the number of hours a person aged 16 to 74 in employment in the week before the census worked in their main job, and includes paid and unpaid overtime.
The number of hours that a person aged 16 to 74 in employment in the week before the census worked in their main job. This includes paid and unpaid overtime.
The 'Main job' of a person aged 16 to 74 is the job in which they usually work the most hours. For people not working at the time of the census the main job relates to the person's last job. Topics based on employment all relate to a person’s main job.
Working part-time is defined as working 30 hours or less per week. This applies to the number of hours a person aged 16 to 74 in employment in the week before the census worked in their main job, and includes paid and unpaid overtime.
The main population base for outputs from the 2011 Census is the usual resident population as at census day 27 March 2011. Although the population base for enumeration included non-UK short-term residents, this population is analysed separately and is not included in the main outputs from the 2011 Census. All outputs, unless specified, are produced using only usual residents of the UK. For 2011 Census purposes, a usual resident of the UK is anyone who, on census day, was in the UK and had stayed or intended to stay in the UK for a period of 12 months or more, or had a permanent UK address and was outside the UK and intended to be outside the UK for less than 12 months.