Sunday Start of Week on Datepicker

Is it possible to set the calendar to start on a Sunday instead of a Monday?

Client states: “The calendar field would be great, but their calendar starts on a Monday. When we tried to use it in the past, customers didn’t notice and we kept getting orders on the wrong date. Even when we confirm the order and repeat the day/date, they still didn’t notice. So right now, we just have them use a text field.”

Thank you!