What is the significance and importance of international date line?

Question

what are the character traits of a scientists

Answer 1

It changes 1 day to another

I don't know

Answer 2

The imprtant are it help yhe world to have standard date were by one part of the world couldnt not mix the the date and time of their and to have stationary date and time around the all world

Answer 3

the world spins in a circle and every time it spins in a complete circle it becomes a new day. the international dateline is where we start measuring and when the world goes all the way around and back to that line, it is a new day.

p.s. how do you not know this?