[R] Daylight Saving Time

[Jeff Newmiller]

Working now... after what action?

AFAIK on *NIX systems R uses the OS installation of the Olsen database, so on a fresh login R should pick up any OS update you have installed.
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Sent from my phone. Please excuse my brevity.

On November 6, 2014 3:36:38 PM EST, Vasantha Kumar Kesavan <info.vasukv at gmail.com> wrote:
>Thanks Jeff Newmiller, it is working now.
>
>I would like to know, the same kind of configuration can be done in
>Linux
>and Solaris platform.
>
>Instead of R is mapping to operating system(/usr/share/.
>/usr/share/lib/)
>zoneinfo directory.
>
>Thanks
>Vasanth
>
>On Fri, Nov 7, 2014 at 1:18 AM, Jeff Newmiller
><jdnewmil at dcn.davis.ca.us>
>wrote:
>
>> R on Windows uses the Olsen timezone database, a copy of which is
>stored
>> with R in the Program Files directory (e.g.
>R/R-3.1.1/share/zoneinfo). You
>> could update the file yourself if you can find a corrected version,
>or
>> download an updated version of R.
>>
>---------------------------------------------------------------------------
>> Jeff Newmiller                        The     .....       .....  Go
>Live...
>> DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live
>> Go...
>>                                       Live:   OO#.. Dead: OO#.. 
>Playing
>> Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
>> /Software/Embedded Controllers)               .OO#.       .OO#. 
>rocks...1k
>>
>---------------------------------------------------------------------------
>> Sent from my phone. Please excuse my brevity.
>>
>> On November 6, 2014 1:16:06 PM EST, Vasantha Kumar Kesavan <
>> info.vasukv at gmail.com> wrote:
>> >Hi,
>> >
>> >I am working R on windows 2012 R2 platform, I have updated the
>latest
>> >hotfixes for time zone information(Microsoft KB 2981580.
>> ><http://support.microsoft.com/kb/2981580>).
>> >
>> >But still R is not populating correct date time values(Standard and
>> >Daylight saving).
>> >
>> >Could you please advise me, how to enable R to pick up the latest
>time
>> >zone
>> >information/configurations.
>> >
>> >Example:
>> >
>> >R --vanilla
>> >Sys.setenv(TZ = "America/Eirunepe");
>> >dt<-c(seq(as.POSIXct("2013-11-09 20:00:00",tz="America/Eirunepe"),
>> >as.POSIXct("2013-11-10 10:00:00" ,tz="America/Eirunepe"),
>by="hour"));
>> >> dt
>> > [1] "2013-11-09 20:00:00 AMT" "2013-11-09 21:00:00 AMT"
>> > [3] "2013-11-09 22:00:00 AMT" "2013-11-09 23:00:00 AMT"
>> > [5] "2013-11-10 00:00:00 AMT" "2013-11-10 01:00:00 AMT"
>> > [7] "2013-11-10 02:00:00 AMT" "2013-11-10 03:00:00 AMT"
>> > [9] "2013-11-10 04:00:00 AMT" "2013-11-10 05:00:00 AMT"
>> >[11] "2013-11-10 06:00:00 AMT" "2013-11-10 07:00:00 AMT"
>> >[13] "2013-11-10 08:00:00 AMT" "2013-11-10 09:00:00 AMT"
>> >[15] "2013-11-10 10:00:00 AMT"
>> >
>> >For the “*America/Eirunepe*” time zone, the DST ended on Sun
>> >10-Nov-2013 at
>> >12:00:00 A.M. when local clocks were set backward 1 hour.
>> >
>> >
>> >as per the latest timezone configuration, the date time sequence
>should
>> >have "2013-11-09 23:00:00" twice.
>> >
>> >
>> >Thanks
>> >
>> >Vasanth
>> >
>> >       [[alternative HTML version deleted]]
>> >
>> >______________________________________________
>> >R-help at 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.
>>
>>