I always assume that the number of days is duration, not timing after pitch. Boil times are listed as duration but also happen to be in relation to flameout. Since duration and length of exposure is what's critical to hop uptake it won't matter as much how many days after pitch you start, but how many days the hops are actually in the beer.
Think of dry hop times in relation to the time you crash the beer for kegging. You'd put the first dry hop in 7 days before you intend to crash and you'd put the second in at 3 days before.
In the case of a NEIPA, that could easily correspond with hopping at pitch, or as I prefer, a day or two into active fermentation so that CO2 blowoff doesn't strip too much aroma from the beer. With a NEIPA you could easily be kegging 9 or 10 days from pitch, maybe even as soon as 7 days.