"try to take the pressure off during their actual working hours"
I know there are pressures to get more and more done, but really, how would the company feel if you started claiming money for time you hadn't actually worked? Well, guess what? It works the other way round too.
You turn up to work on time, you perform your job to the best of your ability in the time that you are paid for, then you go home. Anything else is extra.
If you have been set targets that are not achievable without working extra hours unpaid these are not SMART targets (little buzzword there for the managers).
Seriously though, people need to start taking control of their time a bit more and have a slightly smaller slave mentality. Not always easy granted, but it something to aim for.