Bruce Van Allen schreef: > I think the conclusion is _not_ to consider something like 2003-06 as > a span.
Agreed. > From a string in the form YYYYMM, the DT::F::ISO8601 parser > should return a DT object identical to the DateTime object > instantiated from > $dt = DateTime->new( > year => 2003, > month => 6. > ); No. Let me show you a couple of ISO8601 time intervals, and my interpretation of them: Tomorrow, I have a meeting on "2003-06-22T15/17". I would expect this meeting to start at 15:00:00, and to end at 17:00:00. That is, both start and end times are rounded down. This year, the Tour de France is "2003-07-05/2003-07-27". Cyclist shouldn't expect to go shopping in Paris on the 27th, as they will be busy until late that day (besides, it's a Sunday and the shops will be closed). The best interpretation of that end date is something like 2003-07-27T23:59:59 or 2003-07-28T00:00:00. That is, end date is rounded up (and the start date is rounded down). Julius Ceasar lived "-0099/-0043". The starting date should here be interpreted as "somewhere in 100BC, and the end date should be interpreted as "the ides of March 44BC". Setting both to Jan 1st would be simply wrong. Eugene
