I am afraid that working unpaid overtime is expected in many places (Why are you giving up £5,000 a year?). When you are on a fixed monthly salary, rather than paid hourly, it is next to impossible to request overtime pay just for finishing the workload. If there is an expectation of “getting the job done”, people end up having to put in that extra time. I do not like it either, but I think it is very hard to change.

Mark Kobayashi-Hillary