**The statement is incorrect. The difference in time to the extent of one day on either side of the International Date Line is not caused by the inclined axis of the Earth.**

**Explanation:**

The International Date Line (IDL) is an imaginary line that runs through the Pacific Ocean, roughly following the 180° longitude line. It is the line where one day ends and the next day begins. When you cross the IDL from west to east, you move forward by one day, and when you cross from east to west, you move back by one day.

The primary reason for the existence of the IDL is to maintain a consistent timekeeping system across the globe. The Earth is divided into 24 time zones, each roughly 15 degrees of longitude wide, to ensure that people in different regions can have standardized time. However, due to the spherical shape of the Earth and the need for some countries to have the same date, the IDL deviates from the 180° longitude line in a few places.

The time difference on either side of the IDL is not caused by the inclined axis of the Earth, but rather by the need to maintain consistent dates. When traveling across the IDL, you are essentially crossing from one day to the next. For example, if it is Monday on the east side of the IDL, it will be Tuesday on the west side.

The reason for the slight deviations of the IDL is to accommodate certain countries or regions that choose to align their dates with neighboring countries or for administrative purposes. These deviations help prevent a situation where neighboring regions have different dates, which could cause confusion in trade, travel, and communication.

To summarize, the difference in time to the extent of one day on either side of the International Date Line is not caused by the inclined axis of the Earth. It is a man-made concept designed to maintain consistent timekeeping and date alignment across the globe.

TRUE