It seems longer to me because, as an audience member, they've been on the island for a year and a half. Sometimes they'll indicate the time they've spent there as being 39 days (or whatever) and it throws me a bit. A LOT has happened in that time. Plus, we go through so much of their pasts in flashbacks that we sort of live through those times with them as well.
Still, Hurley should have lost a noticable amount of weight by now.
Still, Hurley should have lost a noticable amount of weight by now.