OK. I'm an idiot (not for the first time and, sadly, no doubt not for the last). strptime() was all that was needed: just that one pesky character and I can't remember now why I went astray there, but thanks to all who supplied the answer and all who supplied additional useful information.
As ever, deeply indebted to the R and R-help communities, Chris > From: "Ismail SEZEN" <sezenism...@gmail.com> > To: "Chris Evans" <chrish...@psyctc.org> > Cc: "r-help" <r-help@r-project.org> > Sent: Monday, 12 September, 2016 10:36:51 > Subject: Re: [R] Help with strftime error "character string is not in a > standard > unambiguous format" > It should be strptime for character vectors. > strptime("Thu, 25 Aug 2016 6:34 PM",format="%a, %d %b %Y %I:%M %p”) >> On 12 Sep 2016, at 08:57, Chris Evans < chrish...@psyctc.org > wrote: >>> strftime("Thu, 25 Aug 2016 6:34 PM",format="%a, %d %b %Y %I:%M %p") [[alternative HTML version deleted]] ______________________________________________ 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.