All bugs in scheduler page are fixed. Paired by Michael and Richard.

The scheduler page is now free of known bugs, with the user now unable to progress until both an hour and a minute slot have been chosen. When there are no available slots in an hour, it will disappear from the options, and when all the time slots
 in a given hour are taken one after the other, it will automatically loop around to the next hour. The bug of moving back to the scheduling page from the confirmation page without the user's chosen time has also been fixed. (Feature #140, Bug #163,
 Feature #160, Bug #194)