DateField + custom fields for time

I want to have PopupDataField for changing the date in my form, and separatly changing hours and minutes by NativeSelect components. So then I want to have some date which has year, month and day from PopupDataField and time from those NativeSelects. I dont know how to save this “date” bc when i call popupDateField.getValue() I’m reciving whole data with hours and minutes, often different from this on NativeSelects.
I was trying to disable saving the hour by setResolution(Resolution.DAY); but it’s not working.

I dont know how to do this, can someone help me?

I want to have some field data- where ll be year, month day from DateField and hour, minutes from NativeSelects