<http://schema.org/openingHours>
"Mo 06:00-19:00, Tu 06:00-19:00, We 06:00-20:00, Th 06:00-19:00, Fr 06:00-18:00, Sa all day, Su all day"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.fittc.com/adult-group-training/>