DATEDIF(A1; A2; "d") A1 is "1st of January 1995" and A2 is "15th of June 1999" returns number of days 1626
DATEDIF( A1; A2; "d"), me yn A1 "01. 01. 1995" en yn A2 "15. 06. 1999", jout it tal dagen 1626