Recently I've moved to Spain and started with a new job last week. In my home country, I would work 8 hours a day with a 30 - 60 min lunch break, and couple of short 10min breaks to relax the mind (Normally we would play FIFA or table tennis). If I got in the office at 9:00, I would leave at 17:00.
Here in Spain, I've been coming to the office at around 8:30. I was expecting to finish and go home by 16:30, but people who came before me were still in the office, therefore I didn't want to leave first. Sometimes I would leave at 17:30 (Which makes it 9 hours in total), and those other guys would still be there. This thing is really pressuring me. I'm sure that nobody would say nothing directly to me if I come at 8:30 and leave at 16:30, but I would still feel pressured for the reason above.
And not to mention that they don't even take the real break, they eat in office, and after that the only break is go to the toilet.
Even though I stay at work for 9 hours, I am far less productive when I was working for 8 hours and having one long break with couple of short ones.
How should I deal with this situation?