https://help.syncfusion.com/cr/winui/Syncfusion.UI.Xaml.Editors.DateTimePickerBase.html
Class DateTimePickerBase - WinUI API Reference | Syncfusion
Represents a class which is used to maintain the common codes of SfDatePicker, SfTimePicker, and SfCalendarDatePicker controls.
api referenceclasswinuisyncfusion