How to customize the datetime format in the WinUI Calendar (SfCalendar)
The WinUI Calendar (SfCalendar) allows you to format the month header, view header, date, and month name by using the DayFormat, MonthFormat, DayOfWeekFormat, and MonthHeaderFormat properties.
XAML
<calendar:SfCalendar
DayFormat="{}{day.integer(2)}"
MonthFormat="{}{month.full}"
DayOfWeekFormat="{}{dayofweek.abbreviated(3)}"
MonthHeaderFormat="{}{month.abbreviated} {year.abbreviated}"
x:Name="sfCalendar"/>
