Change field name and type (schedules.timeblock_start_time TIME, formerly: start_time DATETIME); Change field name (schedules.timeblock_duration, formerly: duration_minutes); Add field name (schedules.start_on_date); Change field type (schedules.end_on_date DATE, formerly: DATETIME); Remove field name (schedules.end_time); Change field name (time_blocks.start_datetime, formerly: start_time); Change field name (time_blocks.end_datetime, formerly: end_time); TODO: ensure form fields being sent to schedule_reservations.php are passing correct values to the 4 new fields (timeblock_start_time, timeblock_duration, start_on_date, end_on_date);