Tue Jan 19, 2016 10:10 am
I've got more findings. When you see the warning message saying you are running out of time to complete a quest (
https://www.dropbox.com/s/brne95sktb...0016.jpg?raw=1), you have only 24 hours in-game, or 72 minutes real time, to complete the mission, or it will fail (
https://www.dropbox.com/s/3oork09146...0017.jpg?raw=1).
Also, if a quest has two stages (e.g., first, talk to a settler to get the location, then clear out that location), each stage gets a 15-day time limit. You can wait till the 23rd hour of the 14th day to talk to the settler in the first stage, and you will get another 15-day window in the 2nd stage to clear out the location. That essentially gives you a 30-day window (36 hours real time) to complete the quest.
So, to summarize all my findings:
(1) A settlement defense quest (e.g. "Help defend The Castle", "Help defend Abernathy Farm", etc.) has a 15-hour window (45 min real time) for completion.
(2) A quest that needs you to ask a settler for the location in which to clear out enemies (e.g. "Ghouls problem at Tenpines Bluff", "Raiders trouble at Greentop Nursery", etc.) gives you a 15-day window (18 hours real time) for each stage of the quest.
(3) A warning saying "You are running out of time to complete your objective for (the settlement in question)" indicates that you have a 24-hour window left (72 min real time) to complete the quest.