1. Accept dates in the ISO 8601 basic date and time format. This
is a format allowing the expression of point in time to the resolution
of a second with only alphanumeric characters -- no spaces, no
punctuation -- suitable for use in fields that cannot contain spaces,
hyphens, or colons.
2. Accept decimal fractions of time units other than seconds in
accordance with ISO 8601. Currently only decimal fractions of a
second are accepted. With the patch, the decimal separator may be
used for the expression of fractions of a minute (in both basic and
extended formats) as well as fractions of an hour.