This dataset provides 2011 estimates that classify usual residents aged 16 to 74 in employment the week before the census in United Kingdom by the number of hours worked. The estimates are as at census day, 27 March 2011.

In 2001, the number of hours worked was a write-in response and the estimates were classified into the categories provided in table UV41. The classification used for 2011 estimates matches the tick box options on the questionnaire. These categories have been collapsed from those in 2001 estimates by grouping the first 3 part-time categories used in 2001 and changing the ranges for full-time work by combining the remaining categories.

Information on hours worked is used to identify working patterns in local areas and target resources accordingly. It is used to gain an understanding, at a local level, of likely travel patterns and times, which can inform the requirements on public transport.

In Scotland this table is numbered QS604SCa.

Data for Northern Ireland comes from table KS604NI.

In order to protect against disclosure of personal information from the 2011 Census, there has been swapping of records in the Census database between different geographic areas, and so some counts will be affected. In the main, the greatest effects will be at the lowest geographies, since the record swapping is targeted towards those households with unusual characteristics in small areas.

More details on the ONS Census disclosure control strategy may be found on the http://www.ons.gov.uk/ons/guide-method/census/2011/census-data/2011-census-prospectus/new-developments-for-2011-census-results/statistical-disclosure-control/index.html[Statistical Disclosure Control] page on the ONS web site.