On Tue, Jul 12, 2011 at 6:58 AM, B Laura <gm.spam2...@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. -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ 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.