messydates: A Flexible Class for Messy Dates

Contains a set of tools for constructing and coercing into and from the "mdate" class. This date class implements ISO 8601-2:2019(E) and allows regular dates and times to be annotated to express unspecified date or time components, approximate or uncertain components, ranges, and sets of dates. The package therefore retains, represents, and reasons about data and time imprecision, resolving to a single data/time only on demand. This is useful for describing and analysing temporal information, whether historical or recent, where date or time precision may vary.

Version:	1.0.0
Depends:	R (≥ 4.1)
Imports:	methods, lubridate, stringi
Suggests:	testthat (≥ 3.0.0), rmarkdown, anytime, clock
Published:	2026-07-16
DOI:	10.32614/CRAN.package.messydates
Author:	James Hollway [cre, aut, ctb] (IHEID), Henrique Sposito [ctb] (IHEID), Jael Tan [ctb] (IHEID), Nathan Werth [ctb]
Maintainer:	James Hollway <james.hollway at graduateinstitute.ch>
BugReports:	https://github.com/globalgov/messydates/issues
License:	MIT + file LICENSE
URL:	https://globalgov.github.io/messydates/
NeedsCompilation:	no
Citation:	messydates citation info
Materials:	README, NEWS
CRAN checks:	messydates results

Documentation:

Reference manual:

messydates.html , messydates.pdf

Downloads:

Package source:	messydates_1.0.0.tar.gz
Windows binaries:	r-devel: messydates_1.0.0.zip, r-release: messydates_0.5.4.zip, r-oldrel: messydates_0.5.4.zip
macOS binaries:	r-release (arm64): messydates_1.0.0.tgz, r-oldrel (arm64): messydates_1.0.0.tgz, r-release (x86_64): messydates_1.0.0.tgz, r-oldrel (x86_64): messydates_1.0.0.tgz
Old sources:	messydates archive

Reverse dependencies:

Reverse depends:	manydata
Reverse suggests:	manystates, poldis

Linking:

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