Good morning everybody,
This application calculates the days between two dates.
https://play.google.com/store/apps/details?id=it.data.giorni&hl=en_GB

Good morning everybody,
Now, adding a number of days (negative and positive) to a date that you select, you can find out what day it is.
Count on Saturdays and Sundays between two dates.
Calculates the date of Easter.
https://play.google.com/store/apps/deta ... i&hl=en_GB