<Q3 xmlns:dt="http://www.w3.org/2001/XMLSchema">
  <ma:Open xmlns:ma="http://www.example.com/AuctionWatch" 
           dt:type="timeInstant">2000-03-21:07:41:34-05:00</ma:Open>
  <ma:Close xmlns:ma="http://www.example.com/AuctionWatch" 
           dt:type="timeInstant">2000-03-23:07:41:34-05:00</ma:Close>
  <ma:Open xmlns:ma="http://www.example.com/AuctionWatch" 
           dt:type="timeInstant">2000-03-19:17:03:00-04:00</ma:Open>
  <ma:Close xmlns:ma="http://www.example.com/AuctionWatch" 
           dt:type="timeInstant">2000-03-29:17:03:00-04:00</ma:Close>
</Q3>