Efficient Manipulation of Date-Times R package timechange version 0.4.0 CRAN Task View: TimeSeries (https://CRAN.R-project.org/view=TimeSeries) Efficient routines for manipulation of date-time objects while accounting for time-zones and daylight saving times. The package includes utilities for updating of date-time components (year, month, day etc.), modification of time-zones, rounding of date-times, period addition and subtraction etc. Parts of the 'CCTZ' source code, released under the Apache 2.0 License, are included in this package. See <https://github.com/google/cctz> for more details. Software Depends: R (>= 3.3) LinkingTo: cpp11 (>= 0.2.7) Suggests: testthat (>= 0.7.1.99), knitr Vitalie Spinu <spinuvit@gmail.com> Comprehensive R Archive Network (CRAN) Vitalie Spinu [aut, cre], Google Inc. [ctb, cph] GPL (>= 3) 2026-01-29 application/tgz https://CRAN.R-project.org/package=timechange doi:10.32614/CRAN.package.timechange