<http://schema.org/openingHours>
"Mo 08:30-17:00, Tu 08:30-17:00, We 08:30-17:00, Th 08:30-17:00, Fr 08:30-17:00, Sa 18:00-19:30, Su 09:30-13:30"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.davidchadwick.org/blog?p=3926>