How long does it take to fly from the Ft. Lauderdale International airport to Tunisia?

A random search for flights from Ft Lauderdale (FLL) to Tunis (TUN) shows:

OPTION 1: 15hr 45min via Neawrk Liberty (EWR) & Rome Fiumicino (FCO)

FLL - EWR United Airlines Flt 3582 Dep 12:55pm 05Mar,Fri

EWR - FCO Alitalia Flt 643 Dep 05:25pm 05Mar,Fri

FCO - TUN Alitalia Flt 864 Dep 09:20am 06Mar,Sat

Flight Duration: 12hr 55min; Layover Time: 2hr 50min; Total Trip Time: 15hr 45min