3 ms·20 hours a week? I think your math is wrong (1 hour * 2 ways * 5 weekdays = 10 hours).by bartonfink 14y ago20 hours a week? I think your math is wrong (1 hour * 2 ways * 5 weekdays = 10 hours).hosh 14y agoOops, my math is wrong. It's 10 hours a week. Still a chunk of time.fokov 14y agoAnother way to put it is every four weeks you are 'working' a full week of overtime.