SharePoint list to create a calendar View

Hello members,

I created a list with dates for 7 days of all weeks in a year, but when I create a Calendar view out of it, Sunday in calendar is left blank. Not sure why it doesn't show. Attached images are the examples. In Calendar View, Sunday column is blank but in the list, Sunday column has dates. I want the row on Sunday through Saturday selected.  Any help will be much appreciated.