<http://schema.org/openingHours>
"Mo 08:00-18:00, Tu 08:00-18:00, We 08:00-18:00, Th 08:00-18:00, Fr 08:00-18:00"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.builtworlds.com/events/calendar/2015/1/11/transportation-research-board-trb-94th-annual-meeting>