Perl 6 will natively think of dates as number of floating point TAI seconds from the year 2000. You can build any kind of date interface on top of that, but we're going for simplicity and predictability.
If UTC goes ahead with with additional leap seconds, we will NOT use Posix stretchy seconds to represent them. I'm personally rooting for everyone to abandon leap seconds for civil time. Civil leap adjustments really ought to be scheduled more than six months in advance. Once a century would be about right. But POSIX stretchy seconds must die. Larry
