I'd echo the comment of the appearance of working hard, not actual hard work. I managed a group in China for a few years and they come in at the listed start t

I'd echo the comment of the appearance of working hard, not actual hard work. I managed a group in China for a few years and they come in at the listed start time and exit and the listed end time in the job description. They're precise, I'll give them that. But are they harder workers? No, I don't think they are. They work differently than Americans (if that is your sphere of knowledge) and maybe that's where the misinterpretation is coming from.