Re: 25 Feb Datatype comments

Arnold, Curt  wrote
>
> Section 2.4.2.13:
>
> The period of facet should be timeDuration.

Another possibility: don't re-invent the wheel.

The people writing standards over in SQL and ODBC-land have defined interval
data types as the difference between two dates and times. The 13 interval
types include month, year, minute, second, year-to-month, and so on.