day() vs dayofmonth() in mysql

Question

Consider

select day("2016-05-22")

and

select dayofmonth("2016-05-22")

both gives the same output.

day("2016-05-22")
22

and

dayofmonth("2016-05-22")
22

Is there any diffrence between these two methods?

Answer 1

According to the MySQL reference manual DAY() is a synonym for DAYOFMONTH()