Why does the international date line does not follow a straight line

It would be very inconvenient if it went thought some land: this means that two cities would have different days, and when crossing the date, people's work and routine would be deregulated.

The International Date line avoids land for this reason: and this is why it does not follow a straight line.

Here is a picture  of the net. its 4 squares in a row diagonal and on the third draw one square aove and under

"pacesetter of the south," comma inside the quotes