OK, so the consensus is (1) One cannot make strptime accept ISO8601-compliant zone designators (2) The lubridate package can (3) Or one can hack away with regex. Lubridate it is, then.
But I do regard strptime's inability to process ISO8601-compliant zone designators as a bug. On Mon, 6 Nov 2023 at 13:18, jim holtman <jholt...@gmail.com> wrote: > try using 'lubridate' > > > library(lubridate)Attaching package: ‘lubridate’ > > The following objects are masked from ‘package:base’: > > date, intersect, setdiff, union > > x <- "2017-02-28T13:35:00+03:00"> ymd_hms(x)[1] "2017-02-28 10:35:00 UTC" > > > > > > > Thanks > > Jim Holtman > *Data Munger Guru* > > > *What is the problem that you are trying to solve?Tell me what you want to > do, not how you want to do it.* > > > On Sun, Nov 5, 2023 at 3:45 PM Richard O'Keefe <rao...@gmail.com> wrote: > >> I have some data that includes timestamps like this: >> 2017-02-28T13:35:00+03:00 >> The documentation for strptime says that %z expects >> an offset like 0300. I don't see any way in the documentation >> to get it to accept +hh:mm with a colon separator, and >> everything I tried gave me NA as the answer. >> >> Section 4.2.5.1 of ISO 8601:2004(E) allows both the >> absence of colons in +hh[mm] (basic format) and the >> presence of colons in +hh:mm (extended format). >> Again in section 4.2.5.2 where a zone offset is combined >> with a time of day: if you have hh:mm:ss you are using >> extended format and the offset MUST have a colon; if >> you have hhmmss you are using basic format and the >> offset MUST NOT have a colon. And again in section >> 4.3.2 (complete representations of date and time of day). >> If you use hyphens and colons in the date and time part >> you MUST have a colon in the zone designator. >> >> So I am dealing with timestamps in strict ISO 8601 >> complete extended representation, and it is rather >> frustrating that strptime doesn't deal with it simply. >> >> The simplest thing would be for R's own version of >> strptime to allow an optional colon between the hour >> digits and the minute digits of a zone designator. >> >> I'm about to clone the data source and edit it to >> remove the colons, but is there something obvious >> I am missing? >> >> ______________________________________________ >> 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. >> > [[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.