The question asked is when does the clock stop ticking in order to back calculate the time the test needs to be conducted? Do you calculate from the scheduled arrival time in Israel or scheduled departure time from country of origin to Israel. You will see that the two statements of requirement I posted ante raise the trigger of both these instances ( I am not even going to get into calculating the trigger point if one were to sail to Israel)."travel to" and "crossing"are two different concepts.