A function to retrieve the system timezone on Unix systems which has been found to find an answer when 'Sys.timezone()' has failed. It is based on an answer by Duane McCully posted on 'StackOverflow', and adapted to be callable from R. The package also builds on Windows, but just returns NULL.
R has a function
Sys.timezone which tries hard to
retrieve the same information. However, we have found instances
where it failed to provide an answer—whereas the simple code in
this package does.
This package provides a single function
gettz which looks
/etc/timezone (on Debian/Ubuntu),
(on RedHat/CentOS/Fedora) or
/etc/TIMEZONE (on Solaris).
In case no information can be provided,
NULL is returned.
Windows support is bare-bones: the package builds, but does not do anything. One could probably deploy custom code to query the registry but given that R already does, there is imminent need.
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