Number of weeks. No - you cannot use the extra hours to get extra weeks of work experience. Any week you work 30 hours or more is counted as 1 week of work experience (even if you work 90 hours that week).Hi, I have 20 months work experience right now but I worked more than 30 hours per week so my total working hours is equal to 3120. Can I count the extra hours or it has to be the number of weeks?