Luigi, Try format = "%d/%m/%y"
Berend Hasselman > On 10 Jun 2020, at 10:20, Luigi Marongiu <marongiu.lu...@gmail.com> wrote: > > ISO 8601 ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.