`user_id` int(11) NOT NULL, # user id
`date` date NOT NULL, # date the record is for
`start` time default NULL, # record start time (for example, 09:00)
`user_id` int(11) NOT NULL, # user id
`date` date NOT NULL, # date the record is for
`start` time default NULL, # record start time (for example, 09:00)