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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.
The tz database partitions the world into regions where local clocks have, since 1970, all been the same.
This map, taken from the 2017a edition of the database, is of all the regions outside Antarctica.
In Linux timezone data is taken from /etc/localtime which is linked to one of the file located in /usr/share/zoneinfo/*.
So we have to first remove this file and then link this file to one of the timezone files located in /usr/share/zoneinfo folder.
See Date-time data can be frustrating to work with in R.Therefore, each of the time zones defined by the tz database may document multiple offsets from UTC, typically including both standard time and daylight saving time.In the time zone text files, each time zone has one or more "zone lines" in one of the time zone text files.For example, you can verify this by running: It is possible to change your system's time so as to demonstrate the fix is good.There are side-effects of changing the time, such as distortion of file dates, or interoperability problems with other systems nearby, so it's only a good idea on a test system. Similarly, you can just pull updated zoneinfo files from a machine running a different Debian release, or even download the latest tzdata package from unstable, extract the zoneinfo files from within the file, and install them into the /usr/share/zoneinfo directory tree.
Lubridate makes it easier to do the things R does with date-times and possible to do the things R does not.