Working hours can be various everyday, sometimes you start 4am sometimes 7am. Also we have night works which can be 2 weeks or more that everyone has to do it once in a while. Rainy day will be your favorite day ;)
You start any time. Different every day. Up to 14 hours a day and Saturdays with no warning whatsoever.
40 to 50 hours a week with weekend work when avialable