[Rd] strptime bug

rob vech rob.vech87 at gmail.com
Thu Jan 26 11:02:06 CET 2017

Dear developer list,
I want to submit the following problem that seems like a bug, as 
confirmed by an other user [1], related to date-time parsing:
Here a simple script:

# that works:
as.numeric(as.POSIXlt(strptime('2016-03-27 01:05:50', format='%Y-%m-%d 

# that not (it returns NA):
as.numeric(as.POSIXlt(strptime('2016-03-27 02:05:50', format='%Y-%m-%d 

# it works again
as.numeric(as.POSIXlt(strptime('2016-03-27 03:05:50', format='%Y-%m-%d 

I made several test and the problem seems to be related to the couple 
"2016-03-27" as date and "2" as hour. It seems not to be related to the 
datetime format.

There is a similar bug on bugzilla [2] but in my case I cannot replicate it.

My OS is Win 7 and R v3.3.2.

Thank you


[1] https://stat.ethz.ch/pipermail/r-help/2017-January/444468.html

[2] https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16764

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