No. Those are two different, separate, distinct,
imaginary lines on the Earth's surface.
is it the equator
The Prime Meridian is located at 0 degrees, the international date line is not. There is only one prime meridian, there are many international date line.
they crossed the equator
The equator and the International dateline cross. the distance between a point on one and a point on the other can be anywhere between zero and about 6,214 miles.
The imaginary line halfway around the globe from the prime meridian is called the International Date Line. This line marks the transition between one calendar day and the next and is located at 180 degrees longitude. Crossing the International Date Line moving eastward subtracts one day, while crossing it moving westward adds one day to the calendar.
West of the International Date Line and south of the Equator
West of the International Date Line and south of the Equator
The Greenwich Meridian or the Prime Meridian is the imaginary line on maps from which all international times are calculated. Greenwich Mean Time (GMT). The time at every point on earth is calculated with respect to Greenwich Mean Time. This practice was originated for maritime navigation and meant that ships clocks needed to be extremely accurate and well maintained.
The Equator is the imaginary line that runs east and west half way between the north and south poles. The equator has a latitude of 0 degrees which divides the Earth into the Northern Hemisphere and Southern Hemisphere. The Equator is one of the five named circles of latitude on Earth. Going from North to South, the circles of latitude are called the Arctic Circle, Tropic of Cancer, Equator, Tropic of Capricorn, and the Antarctic Circle.
The International Date Line runs primarily along the 180 degree longitudinal line. The Equator runs along 0 degrees latitude. The lines intersect along in the middle of the Pacific Ocean (0 degrees North, 180 degrees West).
The point where they cross is zero latitude / 180° longitude.
The 180th meridian is also known as the International Date Line. This imaginary line determines the change in calendar date when crossing it from east to west.