On Oct 21, 2010, at 11:59 AM, omerle wrote:
Thanks for you answer.
It s sufficient but I d like to know why my system think I am CEST
and yours think your are EDT.
It probably acquired it from your OS at the time of R's installation.
(And that was not correct as I discovered.)
Can I change it ?
Of course. (But not necessarily the way I would have predicted.)
?Sys.setlocale
> Sys.getlocale()
[1] "en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8"
The arguments (and LC_TIME is but one of the arguments) are system
dependent and you have not supplied that information. Furthermore, my
efforts at changing my system (Mac 10.5.7/R2.11.1) were not successful.
> Sys.setlocale(category = "LC_ALL" , locale= "de_DE")
[1] "de_DE/de_DE/de_DE/C/de_DE/en_US.UTF-8"
> date()
[1] "Thu Oct 21 13:35:33 2010"
> Sys.time()
[1] "2010-10-21 13:35:39 EDT"
?Sys.timezone
Made it clear that it is an OS setting and changing it in my system
does the trick:
> Sys.time()
[1] "2010-10-21 19:48:42 CEST"
--
David.
Do you know where can I find a list of the timezone ?
> Message du 21/10/10 15:07
> De : "David Winsemius"
> A : "omerle"
> Copie à : r-help@r-project.org
> Objet : Re: [R] Different time between date() and Sys.date()
>
>
>
> On Oct 21, 2010, at 6:19 AM, omerle wrote:
>
> > Hi,
> >
> > I got two different times between these functions :
> >> date()
> > [1] "Thu Oct 21 12:11:37 2010"
> >> Sys.time()
> > [1] "2010-10-21 10:11:40 GMT"
> >>
> >
> > I know that its because I did Sys.setenv(TZ="GMT"). Even if my
> > system is set by default at CEST.
> > I think that the difference between date() and Sys.time() is equal
> > to the difference between CEST and GMT.
> > I would like to get the time of my machine even if I set GMT as a
> > time zone with the Sys.time() function.
> > How can I get the real time from the Sys.time() function ?
> > Or I can really set my time zone to GMT to get the real time with
> > Sys.time() ?
>
> > Sys.time()
> [1] "2010-10-21 09:04:40 EDT"
> > as.POSIXlt(Sys.time(), tz="GMT")
> [1] "2010-10-21 13:06:40 GMT"
>
> >
> > Thanks,
> >
> > Olivier Merle
> >
> > Une messagerie gratuite, garantie à vie et des services en plus,
ça
> > vous tente ?
> > Je crée ma boîte mail www.laposte.net
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
> David Winsemius, MD
> West Hartford, CT
>
>
>
David Winsemius, MD
West Hartford, CT
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