In this short R tutorial, you will learn how to extract time from datetime in R by examples. This task may need to be undertaken whenever you have a dataset and you want to do a time series analysis but only want to include time, for example.
There are many ways we can get this information from different objects in R. For example, we can use the format function after we have converted a vector to POSIXct class (e.g., by using the as.POSIXct function). Furthermore, we can install packages such as lubridate. In this post, we will go through a couple of examples of extracting time from datetime stored in a character vector and a dataframe.