On Fri, 2011-02-04 at 16:21 +0100, Joris Meys wrote: > Apparently, as.POSIXlt takes one o'clock as the start of the day : > > > as.POSIXlt(0,origin="1970-01-01") > [1] "1970-01-01 01:00:00 CET" > > as.POSIXlt(0,origin="1970-01-01 00:00:00") > [1] "1970-01-01 01:00:00 CET" > > as.POSIXlt(0,origin="1970-01-01 23:59:59") > [1] "1970-01-02 00:59:59 CET" > > Cheers
Isn't this just a timezone thing? CET is an hour ahead of UTC (GMT) > as.POSIXlt(0,origin="1970-01-01") [1] "1970-01-01 01:00:00 BST" > as.POSIXlt(0,origin="1970-01-01", tz = "GMT") [1] "1970-01-01 GMT" > as.POSIXlt(0,origin="1970-01-01 00:00:00") [1] "1970-01-01 01:00:00 BST" > as.POSIXlt(0,origin="1970-01-01 00:00:00", tz = "GMT") [1] "1970-01-01 GMT" > as.POSIXlt(0,origin="1970-01-01 23:59:59", tz = "GMT") [1] "1970-01-01 23:59:59 GMT" G -- %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% Dr. Gavin Simpson [t] +44 (0)20 7679 0522 ECRC, UCL Geography, [f] +44 (0)20 7679 0565 Pearson Building, [e] gavin.simpsonATNOSPAMucl.ac.uk Gower Street, London [w] http://www.ucl.ac.uk/~ucfagls/ UK. WC1E 6BT. [w] http://www.freshwaters.org.uk %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
