Five working days in a week is the official government regulation. Working hours are 8 hours a day, normally from 8 a.m. to 5 p.m. with one hour break for lunch. All the government offices, institutions, schools,hospitals and other units do not work on Saturdays and Sundays, except some factories whose "weekends" may be within the week to avoid the electricity high peak. The emergency clinic is open when the hospital is closed. Shops are open everyday, normally from 8:30 a.m. to 9 p.m.