Interplanetary travel times
I just came across this stack exchange post (http://space.stackexchange.com/questions/840/how-fast-will-1g-get-you-there) discussing travel times between planets at 1 g. According to the post, travel to Jupiter would take about 16 days. However, in the books, it takes them weeks. Why is this? Am I missing something? In the post, they use the closest distances to Earth. Is the farthest distant significantly farther?