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BASE 10
BASE 60

• A new method of measuring the time of an average solar day reducing the hours from 24 to 10 hours a day causes an adaptation of all the Units of Measure to which they refer and to which they are related.
The main Units of Measure involved in this change are:

• 1 - The determination of Time Zones
• 2 - The measurement of Angles and Radians
• 3 - The determination and measurement of the Meridians and Parallels

Let's just consider these three very important measures.

### 1 - Time Zones:

Time zones are areas of the globe that have the same conventional time. Prior to their adoption, local solar time (average or true) was used in various areas of the globe, which produced a slightly different time from city to city.
The time zones partially rectified the problem, setting the clocks of a region to the average solar time of the central meridian of the zone in which the zone falls.
As in the previous topics, we talk about the relationship between Degrees, First and Second. If we assume that a round angle is composed of:

### 100 degrees, every 100' first degree, and every 100' second first,

The globe is a sphere and considering it a round angle we can say that on Earth there are 1,000,000 (million) seconds of latitude and 1,000,000 (million) seconds of longitude. With the current sexagesimal method, the number of seconds in a round angle is 360°×60'×60"= 1,296,000" seconds. The ratio between the number of seconds of a round angle expressed with the decimal method and the sexagesimal method is:

### 1.000.000/1.296.000 = 0,771605

Currently the size of a time zone is 15° degrees while with the new hypothesis just described an average time zone would be 10° degrees large (which would be equivalent to the current 36°).

We live in an era in which time zones are linked to 24 hours a day, but if the hours become 10 (ten) in a day, the time zones will also have to be 10 (ten).

Apparently it would seem impossible but if you analyze the uses and habits of the various peoples well, you can see that the conventional decisions that have been taken by the various countries to belong to a time zone or another are not all logical. Despite the division of the terrestrial globe into 24 time zones, in Europe there are anomalies that perhaps not everyone knows: let's take for example the two cities of Santiago de Compostela (Spain) and Porto (Portugal) if we look at any map both are on the same meridian at the same longitude while instead they are in two different time zones, Same goes for the United Kingdom which instead of being in the same Time Zone of France, Spain, Italy, etc. is in a different time zone together with Portugal. Therefore, if we divide the globe into 10 time zones, we could assume only one Time Zone which includes all of Europe, starting from West: Iceland, Ireland and Portugal up to the extreme East of Ukraine, Belarus and Finland. Most of Africa could be included in this same time zone.

China is another example to be taken into consideration to better understand this great and important world variation. China is very long longitudinally, about 4 Time Zones, however, politically and socially, a single time zone has been adopted throughout the country. When in Shanghai (eastern China) they go to work at 9.00 in the morning with the sun high, in Kashgar (far west of China on the border with KyrgYzstan) it is still dark despite the fact that it is still 9.00 in the morning.

Russia has six time zones throughout its territory, even here it could be reduced to 3 time zones. South America could very well fit in a single time zone together with the eastern part of the United States and Canada.
Other examples can be made by looking at the Political map or map of the World and dissecting it into ten parts. The states crossed by the new meridian will decide politically and socially whether to stay in one time zone or another.

### 2 - Angles and Radians:

The round angle is currently formed by 360° degrees ×60' first ×60" seconds = 1.296.000" Seconds. Also this Unit of Measure will be expressed with submultiples in base ten.

The ratio between Degrees, First and Seconds will be on a decimal basis with the following equivalence scale:

• A round angle equal to 100° degrees
• each grade consisting of 100' first
• each first consisting of 100" seconds

it is also obtained that: 100 ° degrees equals 100°×100'×100"= 1.000.000" seconds.
Referring to the previous topic, it can be said that each new Time Zone is composed of 10° new Degrees which are equivalent to 36° sexagesimal degrees (current).

A curiosity can be seen by comparing the two types of angle measurement.
We know that the arc formed on the Earth's surface by two vectors both starting from the center of the earth and having a second angle between them is 30.8642 meters, this applies in all directions and if we consider our planet as if it were a sphere, can also be used to calculate latitude distances, while for longitude this value is valid only if this arc falls over the equator. With the new method of measuring the round angle with a decimal base, we obtain that the arc on the earth's surface formed by two vectors that both start from the center of the earth forming an angle of 1 second between them is equal to exactly 40 meters.
Re-verification: since the meter is the forty millionth part of the largest parallel called "equator", the ratio to determine the Earth's arc having the amplitude of 1 "(second) is equal to: 40,000,000 / 1,000,000 = 40 meters. I propose the mathematicians and physicists members of the Conférence générale des poids et mesures (CGPM) to consider this theory, analyze it, adjust it (if necessary) and have it applied.

### 3 - Meridians and Parallels:

We talked about many things and topics related to Meridians and Parallels but still there is a topic that we have not mentioned and considered yet: Latitude and Longitude.
As for the previous topics, we talk about the relationship between Degrees, First and Second. As stated above we assume that a round angle is composed of 100 ° degrees, each degree consisting of 100 'first and each first consisting of 100 "seconds, if we equate the round angle to the ground we can say that on earth there are 1,000,000 (million) of latitude seconds and 1,000,000 (million) of longitude seconds.

Latitude is an angle that the vertical of a point on the surface of the Earth forms with the equatorial plane and passes through the reference Meridian, this angle is measured in sexagesimal degrees and can take values ​​in the range from 0 to 90°N and from 0 to 90°S. When the base ten angle measurement system is in common use we will have that the latitude will be from 0 to 25°N and from 0 to 25°S.
Longitude is an angle which is measured in sexagesimal degrees on a plane perpendicular to the terrestrial axis passing through the reference parallel and can take values ​​in the range from 0 to 180°E and from 0 to 180°W.
Even the longitude if calculated with a ten-base angle measurement system we will have measurement ranges ranging from 0 to 50°E and from 0 to 50°W.

It is appropriate and desirable that the SI Units of Measure will be unified with a single measurement mode in its multiples and submultiples for each kind of size (Weight, Capacity/Volume, Length, etc.) and used by all the peoples on the Earth in a total and univocal way. Because it will take many years for this proposal to realize, it is important that it will be applied in a short time at least in the European continent!!!

with the new hypothesis a time zone would be 10 degrees wide, equivalent to 100,000" seconds