c(person("Vitalie", "Spinu", email = "spinuvit@gmail.com", role = c("aut", "cre")),
             person("Google Inc.", role = c("ctb", "cph")))
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.
A system with zoneinfo data (e.g.
/usr/share/zoneinfo) as well as a recent-enough C++11 compiler
(such as g++-4.8 or later). On Windows the zoneinfo included
with R is used.
Vitalie Spinu [aut, cre],
  Google Inc. [ctb, cph]