I am looking for a word that describes an amount of time in days from a certain starting point, after which some action should happen.
timeout cannot be used, as it does not clarify that the amount of time is in days (and in computer terminology, often specifies an amount of time to wait in seconds or milliseconds). I was thinking about interval, but interval is often used to describe a timeout that repeats.
I was also thinking about deadline, but that seems to indicate that something should have been happened before the given amount of days, instead of after.
The word will be used in a computer system, to name a setting that specifies the amount of days to wait befor sending a reminder-email to customers.