title: Convert seconds to years in R
body: <p>If I have a large number of seconds, such as 4*10^17 to estimate the age of the universe, and I want to convert it to years, how would I do that? Is there a function command in R to do this or would it just be by doing the math? I tried using the lubridate package, but I couldn't find anything.  seconds_to_period resulted in days, hours, minutes, seconds.  I can't seem to figure out duration and if that would be a good call to use.</p>