This is a bad question. A better question would be if the candidate works and furthers his/her knowledge in their spare time to help make a product as good as i

This is a bad question. A better question would be if the candidate works and furthers his/her knowledge in their spare time to help make a product as good as it can be. You want the people that would still be learning/growing regardless of their job. This is admirable quality to look for (self-growth) - not chasing empty time frames and deadlines.