Well, obviously 24 hours :-)
but how does it work with crafting? I came across this while calculating crafting times for various mundane items.
If the result × the DC equals double or triple the price of the item in silver pieces, then you’ve completed the task in one-half or one-third of the time. Other multiples of the DC reduce the time in the same manner.
(Emphasis mine) So, if you want to craft something worth 20gp with a Craft DC of 20 and get a 20 on a roll (not natural), you have crafted Your Roll x Craft DC in sp = 400. This is exactly double the amount you needed, so the crafting time is not a week, but one-half of a week.
How much time does a character need to spend crafting? 4 days (rounded up)? 3 and a half days as in starting monday morning, finishing wednesday at noon? How much hours are in a day of crafting? 8, 12 or 24?
With some feats and magic to supporting your craft, you can get to lots and lots of multiples of the DC. This can reduce crafting time to mere minutes, depending on how you calculate fractions of a week.
1 week = 7 days*24 hours = 168*60 minutes = 10080 minutes
1 week = 7 days*8 hours = 56*60 minutes = 3360 minutes
How long does 1/30th of a week take? Other way round, does it take 10080 minutes of crafting to finish "1 week"?
Are there any rules clarifying this a bit more to me?