... and oh yeah... the timer will only save when the game saves. So if you wander around for a long time not making any progress, quit & reload the game forgets all that unproductive time and restarts from when you last made progress.
Thanks for the feedback - that's interesting re: the timer saving and it makes sense, it's like the shortest time you could have completed the game in.
You've done well making a Mac version of the game considering you don't have one to test on. On most iMacs they'll have a GPU that's better than the integrated graphics, it's only 12-inch and 13-inch laptops and the Mac mini that lack a dedicated GPU.