Update: Covid Testing Change
The covid testing window in England has recently changed from 5 to 8 days.
This means you will need to get the test done in the first 8 days of having coronavirus symptoms.
On days 1 to 7, you can get tested at a site or at home. If you’re ordering a home test kit on day 7, you will need to do it by 3pm.
On day 8, you need to go to a test site. It will be too late to order a home test kit.
For more information please visit: www.gov.uk/get-coronavirus-test.