> BNF for the dateTime spec
Thanks a lot for that! It is really appreciated! I plan to read it
tomorrow. Right now, I'll only write a little comment about:
> minute = zeroThru60
> second = zeroThru60
Leap seconds occur but (as of today) not leap minutes. Therefore, I wonder
why both are assigned zeroThru60.
I know that some people mean that they would prefer one leap minute (about
once in a century) instead of one leap second several times each decade,
but as of today, leap minutes are not used (yet). I would therefore
suggest not to use zeroThru60 for BOTH minutes and seconds.