Well, its not something that I've seen before. Until I have time to
examine the code I can't really comment further.

You might want to consider writing a test case that loops through time
adding a month, seeing if the time fields stay contant (using
different zones)

And of course, you're welcome to download the Joda-Time source and
take a look there :-)

Stephen

On 18/07/06, Walter Sarka <[EMAIL PROTECTED]> wrote:
> Some additional information under which circumstances the bug occurs
> would be *very* helpful. E.g. if the bug occurs only for some "exotic"
> (defineable) timezones, it would be a minor problem for me (and e.g.
> not require a rewrite of large parts of the code using Joda).
>
> Just for correctness, in the sentence in my initial posting:
> > Is this a bug or a defined behaviour (probably due to DST, since
> > "1979-10-01T23:20:00.000-10:40" is not defined for the timezone
> > above)?
> it should read "1979-10-01T00:00:00.000-10:40" instead.
>
> Walter
>
>
> On 7/18/06, Stephen Colebourne <[EMAIL PROTECTED]> wrote:
> > 1979-09-01 + 1 month = 1979-10-01
> > so, it looks at first glance like a bug.
> >
> > Stephen
> >
> > On 18/07/06, Walter Sarka <[EMAIL PROTECTED]> wrote:
> > > I have a DateTime dt.
> > > dt.toString() is "1979-09-01T00:00:00.000-10:40"
> > > Then I add a month: dtNew = DateTime.plusMonths(1);
> > > dtNew.toString() now is "1979-09-30T23:20:00.000-10:40".
> > > The joda default timezone is "Pacific/Kiritimati".
> > >
> > > I expected dtNew to be "1979-10-01...", as the naming plusMonths() 
> > > suggests.
> > >
> > > Is this a bug or a defined behaviour (probably due to DST, since
> > > "1979-10-01T23:20:00.000-10:40" is not defined for the timezone
> > > above)?
> > >
> > > If it is a bug: does it only occur with "exotic" timezones or can it
> > > happen at every DST transition?
> > >
> > > Can you give me some hints how to get "1979-10-01T..." (preferably
> > > with the lowest defined time of day) for dtNew?
> > > I suppose adding days till reaching October, but may be there is a far
> > > better solution, since such behaviour can happen in all places where
> > > adding or subtracting.
> > >
> > > Thanks, Walter.
> > >
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