A whole number of hours (ie 0, 1, 2, etc.) should be collected and available in output.
The standard classification of hours worked in employment is a flat classification of hour categories from 1 hour to 168 hours and residual categories.
The residual categories are defined in Glossary and references.
The full classification is available in the 'Available Files' section on the main page.
If a response is a fraction of an hour, the rules for rounding numbers are round to the nearest whole hour, but if the part hour is thirty minutes, then select the closest even numbered hour as the rounded number.