I am having trouble with creating a datepicker in samsung note 2 device with lollipop 5.0. The exception is:
java.util.IllegalFormatConversionException: %d c
As alanv noticed, this is a bug of Samsung's Android 5 implementation.
I set up a different theme which shows the date picker with the (older) spinners instead of the calendar view. In the code, I check if the app is running on a samsung device with lollipop and a language other then english, and if so, I apply the theme with the spinners. This works well and there are no other libraries or other hacks necessary.
If needed I can add the theme and how to apply it to this answer.