[R-sig-Debian] Timezone conversion on Ubuntu 20.04

David Winsemius dw|n@em|u@ @end|ng |rom comc@@t@net
Sat Apr 25 02:46:00 CEST 2020

On 4/24/20 4:02 PM, Jeroen Ooms wrote:
> Hi all,
> I am testing R 4.0 and ran into an issue with timezones on Ubuntu
> Focal: converting a timestamp to another timezone results in NA:
>    as.POSIXct(as.POSIXlt(Sys.time(), tz = "CET"), tz = "EST")
> This only happens on Ubuntu Focal, it seems to work fine on Ubuntu
> Bionic. I am the standard ubuntu docker image icw/ r-base from Dirk's
> ppa:edd/r-4.0 on both systems.
> Am I missing a system dependency for tzone data?

I don't really know but I do know that "EST" is often not a specific 
valid value. It is used by both the USA and Australia. More valid 
designation would probably be "America/New_York"

The vector of valid names is returned by:

OlsonNames(tzdir = NULL)



> Jeroen
> _______________________________________________
> R-SIG-Debian mailing list
> R-SIG-Debian using r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-debian

More information about the R-SIG-Debian mailing list