=TEXT(A1,"mmmm ")&DAY(A1)&IF(INT(MOD(DAY(A1),100)/10)=1,"th",IF(MOD(DAY(A1),10)=1,"st",IF(MOD(DAY(A1),10)=2,"nd",IF(MOD(DAY(A1),10)=3,"rd","th"))))&TEXT(A1,", yyyy")