[R] timeBasedSeq stumbles over the year 2038 (xts package)

[R. Michael Weylandt]

I'm not sure that's it: R uses doubles for its POSIXct values so those
aren't at play here. (And even if they were, 64-bit R wouldn't help:
that's only pointer size)

One can trace the problem out of xts down to

ISOdatetime(2035:2040, 12, 31, 23, 59, 59.999)

which is a base R function, but I'm still following it down further.

? DateTimeClasses suggests that OS faculties only rightly control DST
up to 2037, so that might be as far as we can understand it.

Best,
Michael

On Wed, Aug 1, 2012 at 6:10 PM, Jeff Newmiller <jdnewmil at dcn.davis.ca.us> wrote:
> http://en.wikipedia.org/wiki/Year_2038_problem
>
> Workaround 1: Avoid collecting data in the future and processing it in the present.
>
> Workaround 2: Use a 64-bit build of R, as appropriate for such future data sets.
> ---------------------------------------------------------------------------
> Jeff Newmiller                        The     .....       .....  Go Live...
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>
> Marcus Kriele <mkriele at mac.com> wrote:
>
>>I have the following problem:
>>
>>As expected I obtain
>> timeBasedSeq( 2037/2037)
>>[1] "2037-01-01"
>>>
>>However if I do the same for 2038 I get
>>timeBasedSeq( 2038/2038)
>>[1] "2038-01-01" "2039-01-01"
>>
>>I get the same strange result if I use later years or any interval that
>>contains 2038:
>>timeBasedSeq( 2037/2039)
>>[1] "2037-01-01" "2038-01-01" "2039-01-01" "2040-01-01"
>>>
>>
>>Am I doing anything wrong?  I am using R2.15.1 und xts 0.8.6 on a mac.
>>
>>Many thanks,  Marcus
>>
>>
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>>
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