Under the terms of alcohol licensing legislation, off-licences in England and Wales can apply to stay open for up to 24 hours a day. Each individual off-licence outlet's opening hours are set out under the conditions of its alcohol licence.
Opening hours for off-licences in Scotland and Northern Ireland are regulated as follows:
10am until 10pm seven days a week. However, local Licensing Boards may reduce these hours in individual cases.
8am to 11pm from Monday to Saturday 10am to 10pm on Sundays (except Christmas Day and Easter Sunday, when they are not permitted to open).
Note that wherever you are in the UK, there is no obligation to open for all of the hours for which you are licensed.