A new small package with a new C++ header library is now on CRAN. It brings the date library by Howard Hinnant to R. This library has been in pretty wide-spread use for a while now, and adds to C++11/C++14/C++17 what will be (with minor modifications) the ‘date’ library in C++20. I had been aware of it for a while, but not needed thanks to CCTZ library out of Google and our <a href=“http://dirk.eddelbuettel. …