The posting about the night shifts seems to have disappeared. However, these are the shifts in place for nights at Liverpool. Bear in mind that the airport (Tower and Radar) is open 24hrs:
Monday-Friday: The night shift is from 2145-0700. We have 2 people in for nights, one in radar and one in tower. There is also an evening shift who provide breaks. The evening shift is from 1445-0000.
Saturday and Sunday: There is no evening shift so there are 2 people on duty from 2145-0700. Again the airport is notified fully open 24Hrs.
There is also just one assistant on duty for nights from 2120-0645.