Extract time from timestamp?

Question

Essentially, I want only the hour, minute, and seconds from a column of timestamps I have in R, because I want to view how often different data points occur throughout diffe

Answer 1

Just

x <- '2008-08-07T17:07:36Z'
substr(x, 12, 19)
#[1] "17:07:36"

...will do it if the timestamp is consistent, which I imagine it would be given it is an ISO_8601 ( https://en.wikipedia.org/wiki/ISO_8601 ) string.