On the admin dashboard click Scheduling and then Schedules

Click the space that correlates with the student and date you wish to schedule and click "This week only". Here you can create the first section of time.

Once you press save, the refreshed window will show your updated time slot. Repeat the same process to add the second time.

Click save and wait until the window updates to display the two separate times.

Now, this student is scheduled for two different times in one day.