as.Date is converting your object with respect to GMT time zone and in that time zone your POSIXct date is the day before. See ?as.Date and also suggest you read R News 4/1 help desk article.
On 11/27/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Full_Name: Xiao Gang FAN > Version: 2.4.0 > OS: Windows > Submission from: (NULL) (159.50.101.9) > > > > library(chron) > > as.Date(as.POSIXct(strptime("1994-01-24","%Y-%m-%d"))) > [1] "1994-01-23" > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel