date a = %key%.customfield_10900; date b = %key%.customfield_10902; interval businessday = 0; date [] c ; number i = 0; while (b != a){ b = b + "1d"; c[i] = b; i = i + 1; } for (date i in c){ if(dayOfWeek(i) != "Sun" && dayOfWeek(i) != "Sat" ){ //runnerLog(dayOfWeek(i)); businessday = businessday + "1d"; }