'date' C++ Header Library for Date and Time Functionality R package RcppDate version 0.0.7 A header-only C++ library is provided with support for dates, time zones, ISO weeks, Julian dates, and Islamic dates. 'date' offers extensive date and time functionality for the C++11, C++14 and C++17 standards and was written by Howard Hinnant and released under the MIT license. A slightly modified version has been accepted (along with 'tz.h') as part of C++20. This package regroups all header files from the upstream repository by Howard Hinnant so that other R packages can use them in their C++ code. At present, few of the types have explicit 'Rcpp' wrappers though these may be added as needed. Software Suggests: Rcpp Dirk Eddelbuettel <edd@debian.org> Comprehensive R Archive Network (CRAN) Dirk Eddelbuettel [aut, cre] (ORCID: <https://orcid.org/0000-0001-6419-907X>), Howard Hinnant [aut] (author of 'date' library) GPL (>= 2) 2026-07-28 application/tgz https://CRAN.R-project.org/package=RcppDate doi:10.32614/CRAN.package.RcppDate