Question 1730Navigation General

The correct answer is C) It is 0500, March 16. When crossing the 180th meridian (International Date Line) from east to west, you subtract a day. Since you are crossing from west to east, you add a day. Therefore, if your original time was 0500 on March 17, when you cross the 180th meridian, your local time becomes 0500 on March 16. The other options are incorrect because: A) You are not in the -12 time zone, as crossing the 180th meridian does not change your time zone. B) It cannot be 1700, March 18, as you are traveling eastward, not westward. D) It cannot be 0500, March 18, as you are traveling eastward, not westward.