RE: About timeDuration format

No.  The other formats are time intervals, that is a time period with a fixed starting point and ending point.  A time duration is detached from any place in history.  If you want to represent a time
interval, you can do it with multiple attributes, such as:

<interval start="2001-02-03T00:24:00Z" end="2001-02-03T01:24:00Z"/>

or

<interval start="2001-02-03T00:24:00Z" duration="P1H"/>

Received on Thursday, 8 February 2001 19:27:56 UTC