When were Cleopatra's children born?

Cleopatra firstly had :

Caesarian; born to Julius Caesar.

The Next 2 Kids Are Twins And Are The Middle Children;

Alexander HeliOS and Cleopatra Selene; Born To Mark Antony.

The Next Child Is The Last Born Child;

Ptolemy Philadelphius;

Caesarion was born in 47 BC

The twins were born in 40 BC

Ptolemy was born in 36 BC.