It takes hours--not minutes--for human eyes to reach full nocturnal capacity

It takes hours--not minutes--for human eyes to reach full nocturnal capacity.

From:

Night Magic Adventures Among Glowworms Moon Gardens & Other Marvels of the Dark

by Leigh Ann Henion

https://www.powells.com/book/night-magic-adventures-among-glowworms-moon-gardens-other-marvels-of-the-dark-9781643753362