Increase z-index on datepicker

[dextermontero]

I request to increase the default value of z-20 to the highest value so that can be send to front, it because my scenario i put the date picker on modal, modal have z-50 to main div and z-40 for the backdrop so the date picker send to back

here the Screenshot

I added z-index on the style manually in inspect element and then date picker send to front of the modal

[samsonnagamani]

Same issue here