Question

The whole globe is divided into __ time zones.
A) 10
B) 24
C) 30
D) 60

Answer 1

Hint: For legal, commercial, and social purposes, a time zone is a region that observes a uniform standard time. Because it is more practical for locations in frequent communication to preserve the same time, time zones tend to follow the borders of countries and their subdivisions rather than rigidly following longitude.

Complete answer:
The Earth's surface has been divided into 24 one-hour time zones. Each zone has a longitude of $\dfrac{360}{24}$=15 degrees. The movement of the Earth, Moon, and planets is the most accurate way to measure time. All areas along the Prime Meridian of Greenwich will have midday or noon when the Sun is at its highest point in the sky. Areas east of Greenwich will be ahead of Greenwich time as the Earth rotates from west to east, and places west of Greenwich will be behind it.

France has the most time zones, with a total of 12, including its overseas territories. Quirico Filopanti was the first person to think of a global time zone system. Miranda developed this concept in his work, which was released in 1858. Sir Sandford Fleming proposed a global time zone concept in 1879. As a result, the time would be one hour ahead of Greenwich time at 15 degrees west, and one hour behind Greenwich time at 15 degrees east. The local time at the longitude where the event occurs.

The standard time in the country is the local time at the longitude that runs through the centre of the country. When doing business on a worldwide scale, it's critical to have equivalent standard times in different nations. The earth has been divided into 24 zones (Because there are 24 hours in a day) depending upon the longitudes. Each time zone differs from the next by 1 hour. The world has been divided into 24 time zones to help with this.

Thus, the correct answer is Option (B) i.e, The whole globe is divided into 24 time zones.

Note: Sandford Fleming's efforts resulted in the acceptance of the current time meridians. Today, all nations utilize conventional time zones for secular purposes, although they do not adhere to the original premise.