when can you park on single yellow lines

You can park on single yellow lines only outside the restricted hours, which vary depending on the local area. Single yellow lines mean parking is not allowed during certain times posted on nearby signs, which are intended to keep traffic flowing and ensure safety. For example, in Manchester city centre, parking on single yellow lines is prohibited from 8am to 8pm daily, while in Westminster, restrictions apply Monday to Friday from 8:30am to 6:30pm, with weekend parking sometimes permitted. If there are no signs, you should check for nearby controlled parking zone (CPZ) signs as the rules may apply according to those times. Disabled Blue Badge holders may park on single yellow lines at any time but only for up to three hours and where no loading restrictions are in place.