Their working condition

I am volunteering on Sunday in a Japanese classroom nearby.
There are many young people from Asia working in Japan. And they want to be able to speak Japanese well.
We sometimes talk about their working conditions. Many of them work from Monday to Saturday, and working time seems to be from 8 am to 5 pm.
This is just the same as our previous working hours. They do not feel dissatisfied because the working conditions in their home countries are slmost like that.