If people took the 5 seconds to look over the information given, they'd see it literally telling you you'll need 5 calendar days to complete the quest. There are way too many posts being shocked about there being multiple days needed to do the quest.

There's still time to start and get the skin for Durin and the quest takes about 5 - 10 minutes a day.
The amount of people being caught off-guard by Durin's timed quest is shocking (or not)