The word INTERNACIONAL says it all. yes it is the same all around the world.
It is at midnight UTC on the International Date Line that the same calendar day is observed everywhere on Earth. At this point, the date changes from one day to the next for the entire planet simultaneously.
Yes, there is gravity at the International Date Line, just as there is everywhere on Earth. The International Date Line is an imaginary line that runs from the North Pole to the South Pole, primarily along the 180° longitude, and it affects time zones rather than physical properties like gravity. Gravity varies slightly across the Earth due to factors such as altitude and the Earth's shape, but it remains present at the Date Line, similar to other locations on the planet.
The International date line located in Grenwich England
When the international date-line and midnight line up (once a day).
International Date Line IDL
At the single instant in time when the calendar date is the same everywhere on earth, the time on the International Date Line is 12:00 midnight, and it's the beginning of that day on the east side of the line, and the end of the same day on the west side.
When you cross the International Date Line, you move from one day to the next. This imaginary line on the Earth's surface marks the change in calendar days.
The Northern hemisphere - is everywhere North of the equator. The Southern hemisphere - is (obviously) everywhere South of the equator. The Western Hemisphere - is everywhere to the west of the Greenwich meridian (in England) - and East of the International Date Line. The Eastern Hemisphere - is everywhere to the East of the Greenwich meridian (in England) - and West of the International Date Line. New Jersey is in the Western hemisphere.
international date line
No, the international date line is a line of longitude, not latitude.
No. That's why they invented the international date line.
The line 180 degrees from the Prime Meridian is called the International Date Line, which serves as the boundary between one day and the next on the Earth's surface.