Convert and Impute Dates to ISO 8601 Format and Reconcile Data Sets R package datetoiso version 1.2.1 Provides tools for converting and imputing date values to the ISO 8601 standard format and for reconciling differences between two versions of a data set. The package automatically detects date patterns within data frame columns and converts them to consistent ISO-formatted dates, with optional imputation of missing day or month components based on user-defined rules. It also includes functionality to identify inserted, deleted, and updated records, as well as column- and value-level changes, when comparing old and new versions of a data frame. Only one date format may be applied within a single column. Software Imports: stringr, lubridate, data.table, dplyr, purrr, glue, magrittr Suggests: testthat (>= 3.0.0) Lukasz Andrzejewski <lukasz.coding@gmail.com> Comprehensive R Archive Network (CRAN) Lukasz Andrzejewski [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=datetoiso/LICENSE) 2025-12-16 application/tgz https://CRAN.R-project.org/package=datetoiso doi:10.32614/CRAN.package.datetoiso en-US