China's luckiest numbers since ancient times are 5 and 9, while the Roman Empire is 6 and 0. Therefore, a long time ago, the time of the ancient Roman Empire was 60 years, which was adopted and still used today due to the cultural exchange between the merchants of various empires.

Viewpoint 2: Application of Babylon

The earliest written records show that the Babylonians used the sexagesimal number system based on 60. The Babylonians expressed 75 as "1, 15" in hexadecimal, which is the same as we wrote 75 minutes as 1 hour and 15 minutes.

Around 2000 BC, a 60-bit value system using only two cuneiform symbols appeared. In this system, the cuneiform of "T" stands for 1, "

Viewpoint 3: The result of specifying a circumference of 360 degrees.

The mathematician Hipachas (BC 190-BC 120) from Nicea (in present-day Turkey) was considered as the greatest astronomer at that time. He founded astronomy according to the principles of Greek geometry. He divided the circle into 360 degrees, and each degree was subdivided into 60 points as the basis of trigonometry.

For convenience, time is also divided in hexadecimal.

Viewpoint 4: According to the division result of Tiangan and Dizhi 60 Jia Zi.

The hexadecimal system of time is divided according to heavenly stems and earthly branches's relationship. In ancient times, many people used this operational relationship, but it was originally because of the Book of Changes. Because the Book of Changes itself is a way of operation of the ancients. Hexadecimal system is a great invention explored by human beings in its existence.

The reason for using hexadecimal.

It is speculated that the compatibility of 10 is worse than that of 60. 10 has only two divisors of 2 and 5, while 60 has 1, 2, 3, 4, 5, 6, 10, 12, 20, 30, 60.

In real life, it often happens that a certain number is divided into 2, 3, 4 and 5 equal parts. One quarter of 1/4, which is still widely used at present, is an example. 4 is not divisible by 10, but it can be divisible by 60, so it is easier to avoid the complicated calculation of decimals in hexadecimal than in 10.

The biggest reason for using decimal system is that the number of fractions representing decimals is much more than 10. In practice, dividing an interval of 10 into equal parts will become 0. 1, 0.2, 0.3, …, 0.9, 1, and then dividing it into equal parts will become 0.0 1, 0.02, 0.03, …. Unfortunately, the simplest 1/3 cannot be expressed in decimals, because 3 is not a divisor of 10.