Answer:

You sure can! To change the day of the week on which your calendar view begins (left column), do the following:

1. Click your name in the top right and select 'My Profile'.
2. On the General Settings tab, click the blue Edit Profile button that appears to the right of your name.
3. Find the "Start Week On" dropdown and select your desired day of the week.
4. Click the green Save button.

Your chosen day will now be the leftmost column within your month and week calendar views.