How long will it take for me to receive a response?
Organisations must respond to your request as quickly as possible and reply within 30 days, or one month of receiving your request.
In some cases companies can extend the time to respond if the request is complex or they need more time finding your data. However they must inform you within one month that they plan on extending the time to respond to you.
For more on this, see the Information Commissioners Office (ICO) guidance on Time Limits.