Even though Boris has said this is going ahead, Matt Hancock said that there's not a clamour for it and "if both the person doing the vaccination and the person being vaccinated would both prefer for that to happen in the middle of the day, rather than the middle of the night, then that's probably when we should do it"
Once again, Matt Hancock is spectacularly missing the point here! Of course priority group 1 and 2 would prefer an appointment during the day - there's little incentive for them to accept an anti-social appointment, knowing that they'll be vaccinated in a couple of weeks regardless. If the late night slots were opened up to groups 3, 4 and 5, there would be no trouble filling them. But the government won't do that - they'll keep to their strict priority order and then do away with the 24/7 centres because there wasn't enough demand...