As of 1st April 2020 – This depends on the banding of the post you are offered.
Band 2 posts (eg:, Domestic, Porter, Catering Assistant, HCSW) £9.30 per hour + extra if you are working unsocial hours.
All time Saturday (midnight to midnight) and any week day after 8pm and before 6am is time plus 44% so £13.39.
All time on Sundays and Public Holidays (midnight to midnight) is time plus 88% so £17.48