On Wed, Jul 30, 2014 at 12:54 PM, William Dunlap <wdun...@tibco.com> wrote: >> I should have mentioned that I tried other time stamps, generated the >> same way as "q" above. > > How did you generate q and in what time zone were you?
I got it from an MS-SQL data base which is maintained by some closed-source vendor software. But I manipulate the data in the SELECT before sending it to R via ODBC. I need to double check the raw data in the data base. > Note that 2am > on 9 March 2014 is when 'daylight savings time' started in the parts > of the US where it is observed. Does 2am exist or do we jump from > 1:59:59 to 3:00:00? Hum, that hadn't occurred to me. I need to see what is in the DB. But I think you have found my problem. If I force the timezone to be GMT, then the problem disappears. So that is what I'll do with this data. > > > Bill Dunlap > TIBCO Software > wdunlap tibco.com -- There is nothing more pleasant than traveling and meeting new people! Genghis Khan Maranatha! <>< John McKown ______________________________________________ R-help@r-project.org mailing list 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.