Hi Maybe it is connected to %I Hours as decimal number (01–12).
Your input has hour as 00 Cheers Petr > -----Original Message----- > From: R-help <r-help-boun...@r-project.org> On Behalf Of Marc Girondot via > R-help > Sent: Tuesday, October 2, 2018 3:30 PM > To: R-help Mailing List <r-help@r-project.org> > Subject: [R] Strange result for strptime with %p > > Dear members... are these results normal ? > > For the first one, no problem. I expected this: > > > strptime("05/01/18 01:00:00 AM", format = ("%m/%d/%y %I:%M:%S %p"), > tz="Asia/Jayapura") > [1] "2018-05-01 01:00:00 WIT" > > For this one, it is ok also: > > > strptime("05/01/18 01:00:00 AM", format = ("%m/%d/%y %I:%M:%S %p"), > tz="Asia/Jayapura")-1 > [1] "2018-05-01 00:59:59 WIT" > > But how to explain this ??? > > > strptime("05/01/18 00:59:59 AM", format = ("%m/%d/%y %I:%M:%S %p"), > tz="Asia/Jayapura") > [1] NA > > Thanks for your advices > Marc > ______________________ > > R 3.5.1 on MacOS 10.14 > > > version > _ > platform x86_64-apple-darwin15.6.0 > arch x86_64 > os darwin15.6.0 > system x86_64, darwin15.6.0 > status > major 3 > minor 5.1 > year 2018 > month 07 > day 02 > svn rev 74947 > language R > version.string R version 3.5.1 (2018-07-02) > nickname Feather Spray > > ______________________________________________ > 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. Osobní údaje: Informace o zpracování a ochraně osobních údajů obchodních partnerů PRECHEZA a.s. jsou zveřejněny na: https://www.precheza.cz/zasady-ochrany-osobnich-udaju/ | Information about processing and protection of business partner’s personal data are available on website: https://www.precheza.cz/en/personal-data-protection-principles/ Důvěrnost: Tento e-mail a jakékoliv k němu připojené dokumenty jsou důvěrné a podléhají tomuto právně závaznému prohláąení o vyloučení odpovědnosti: https://www.precheza.cz/01-dovetek/ | This email and any documents attached to it may be confidential and are subject to the legally binding disclaimer: https://www.precheza.cz/en/01-disclaimer/ ______________________________________________ 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.