Added 2 minutes later
It meant that two hours wouldn't be wasted on the road each day. But after the prologue ends, they won't always be available, these hours.
After the prologue, can't you "walk around the city"? Or what does "the hours won't always be available" mean?
Если где-то чего-то убудет, то в другом месте добавится.
(Закон сохранения).