4 different types of date pickers.
Basically, these elements are made with vector shape, but some of them are converted into smart objects, so please take notice when you editing the elements.
Font used for date pickers is arial, however the font used as a “date picker” label is aller – you can download it here if you want. http://www.fontsquirrel.com/fonts/Aller. but since the date pickers themselves don’t use aller, so it’s okay if you don’t have any