We arrive at 12 at 8: 30 am, 2: 30 am to 6: 00 am in spring and summer, and 2: 00 am to 5: 30 am in autumn and winter, which adds up to 7 hours.
Some places go to work early in the afternoon and get off work early.
As for eating, some have canteens, you can choose to eat in the company canteen or go home to eat, and some have to go home to eat without canteens.