As an administrator, I would like to have the first day of the week on the date picker to be set as Sunday when English (US) is the default instance language.
According to ISO-8601 the first day of the week is Monday. However, for North America and also other countries outside of it, the first day of the week is Sunday
Having a different first day on the calendar can lead to incorrectly scheduled appointments and meetings. This can cause major drawbacks for businesses where time is the biggest constraint.