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@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.