[R] time zone - any practical solution?

[Gabor Grothendieck]

On Tue, Jul 12, 2011 at 6:58 AM, B Laura <gm.spam2011 at gmail.com> wrote:
> Hello all,
>
> Could someone help me with the time zones in understandable & practical way?
> I got completely stucked with this.
>
> Have googled for a while and read the manuals, but without solutions...
>
>
>
> -------------------------------------------------------------------
>
> When data imported  from Excel 2007 into R (2.13)
>
> all time variables, depending on date (summer or winter) get (un-asked for
> it!) a time zone addition CEST (for summer dates) or CET (for winter dates).
>

Read
http://rwiki.sciviews.org/doku.php?id=tips:data-io:ms_windows&s=excel
which gives many ways of reading Excel into R and read R News 4/1
which discusses appropriate R classes to use (you would b best to use
Date, not POSIXct, in which case you could not have time zone problems
in the first place) and internal representations of R vs. Excel.

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email: ggrothendieck at gmail.com