A collection of utility functions for working with Year Month Day objects. Includes functions for fast parsing of numeric and character input based on algorithms described in Hinnant, H. (2021) https://howardhinnant.github.io/date_algorithms.html as well as a branchless calculation of leap years by Jerichaux (2025) https://stackoverflow.com/a/79564914.
Maintainer: Tim Taylor tim.taylor@hiddenelephants.co.uk (ORCID)
Authors:
Howard Hinnant (Author of underlying algorithms for calculating Epoch days to Calendar days and vice versa)
jerichaux (Author of included branchless leap year calculation)
Useful links: