A typical civil engineer works for about 8 hours a day and 40 hours a week. This is a norm across multiple countries including US, UK, Canada, Australia, New Zealand etc. However, there are countries where civil engineers are expected to work on Saturdays; increasing the hour count by 8-10 overall.

There are government norms for how many hours a person should work in a technical job. In the private sector, these working hours are limited to 40 per week. However, depending upon the complexity of project - engineers might occasionally be required to put 10-12 hours.

Civil engineers typically work in the design, construction and maintenance projects - and are often out in the field.

Considering the travel time, the working hours may expand by 2-3 hours every day. In India, my civil engineer friends have to work on Saturdays and sometimes even on Sundays if the project demands.

They do get compensated for the extra-time through enhanced remuneration and additional leaves; and they have made pace with their irregular work timings.