Help with Converting Excel Times to R
Hi Shawn,
I don't have any trouble with this:
times<-c("7/20/21 13:30","7/20/21 13:40")
strptime(times,"%m/%d/%y %H:%M",tz="GMT")
[1] "2021-07-20 13:30:00 GMT" "2021-07-20 13:40:00 GMT"
I suspect that Excel is causing the problem. Try changing the format
of the date column to "Text" and work on the character representation
of the dates.
Jim
On Thu, Jul 22, 2021 at 8:49 AM Shawn Way <sway at empowerpharmacy.com> wrote:
I've usually had good luck with this, but something is not working well. I have two datetimes in excel 7/20/21 13:30 7/20/21 13:40 And when I convert these to excel's normal storage schema, I get the following: 42935.5625 42935.56944 Just try to convert this to a POSIX class gives me issues.
dt <- c(42935.5625,42935.5694444444)
as.POSIXct(dt,origin="1899-12-30 00:00:00",tz="GMT")
[1] "1899-12-30 11:55:36 GMT" "1899-12-30 11:55:36 GMT" As you can see, there is a world of difference here. I've tried any number of solutions such as lubridate, etc and I get the same result
as_datetime(dt,origin="1899-12-30 00:00:00")
[1] "1899-12-30 11:55:36 UTC" "1899-12-30 11:55:36 UTC" Any ideas about what I'm doing wrong? Shawn Way
______________________________________________ R-help at 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.