Functions to work with date-times and time-spans: fast and user
friendly parsing of date-time data, extraction and updating of
components of a date-time (years, months, days, hours, minutes, and
seconds), algebraic manipulation on date-time and time-span objects.
The 'lubridate' package has a consistent and memorable syntax that
makes working with dates easy and fun. 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.
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