Top 20 NuGet date-picker Packages
A calendar that allows you to select both a single date and a period. It Allows you to change colors programmatically without reference to the theme.
Fully customizable calendar for Xamarin.Android with a wide variety of features and displaying modes.
An Android Library to pick dates range, that helps user to select range from future dates.
A styleable DatePicker for Android using the old spinner style (NumberPickers). Don't forget to add "Mono.Android.Export.dll" as reference on your project.