Time zones of countries around the world and world time zone map

What are the time zones of countries around the world ? This article will summarize for you the time zones of the world .

In the past, when there were no clocks, people often used the sun as a standard to determine the daily time. Later, when life became more modern, people could easily calculate the time zones in the world. In each different country, there will be different times. If at this time, in this country it is afternoon, in another place it is evening. This is due to the constant change of longitude and each longitude is calculated as a time zone.

The Earth has 24 meridians dividing the Earth's surface into 24 equal parts. Each meridian corresponds to a time zone. This helps us to easily calculate the time difference between countries. However, the above division is only a general basis; specific time zones are built on local agreements, which are an important factor in unifying the country's territory. Therefore, on the world map, many exceptions can be seen, and the time difference between some time zones may not be equal to 1 hour.

Time zones of countries around the world

Below is a table of time zones of countries arranged in alphabetical order for readers to easily follow.

Starting with the letter A

Starting with the letter B

Starting with the letter C

Starting with the letter D

Starting with the letter E

Starting with the letter F

Starting with the letter G

Starting with the letter H

Starting with the letter I

Starting with the letter J

Starting with the letter K

Starting with the letter L

Starting with the letter M

Starting with the letter N

Starting with the letter O

Starting with the letter P

Starting with Q

Starting with the letter R

Starting with the letter S

Starting with the letter T

Start with the letter U

Start with the letter V

Starting with the letter Y

Starting with the letter Z

All time zones on Earth are relative to UTC (approximately equal to GMT historically) which is the time zone at the 0 meridian, passing through the Royal Greenwich Observatory, Greenwich, London, England.

Coordinated Universal Time, or UTC, is an international time standard implemented by atomic methods. "UTC" is not an abbreviation, but a compromise between the English abbreviation "CUT" (Coordinated Universal Time) and the French abbreviation "TUC" (temps universel coordonné). It is based on the old Greenwich Mean Time (GMT) standard established by the British navy in the 19th century, which was later renamed Universal Time (UT). Time zones around the world are calculated by their positive or negative offsets from universal time.

In theory, GMT is solar time, calculated at noon. At that time, the position of the sun will be on the Greenwich meridian. In reality, the movement of the Earth in its orbit around the Sun is not truly circular but follows a nearly circular ellipse, with a speed that changes every year, which leads to time differences on Earth.

The Earth's rotation is also irregular, and tends to slow down because of the tidal forces of the Moon. Atomic clocks give us more precise time than the Earth's rotation. On January 1, 1972, an international time conference replaced GMT with Coordinated Universal Time (UTC), which is kept by atomic clocks around the world. UT1 is used, instead of GMT, to represent "Earth rotation time". Leap seconds are added or subtracted from UTC to keep it from differing from UT1 by more than 0.9 seconds.

Time zones are how we tell time around the world. Now that you know all the time zones in the world, let's learn some fun facts about them!

Twilight is a time trick

The sun sets in Paris both earlier and later than in London. This is particularly odd as the two cities are not that far apart. HOW IS THAT POSSIBLE?! Yes, France is in an hour’s time zone ahead of the UK but geographically it is slightly further east, meaning that sunset actually reaches Paris before it reaches London, even though it occurs a little later than in the UK. It is essentially the Beginning of Solar Activity.

UK and European time zones SHOULD be the same

Among the many things that World War II messed up was the time zone between Britain and the rest of Europe. France, the Netherlands, Luxembourg and Belgium were all originally in the same time zone as Britain, but Germany changed their time zones to match Germany’s during their occupation of those countries. At the same time, the Spanish dictator Franco also changed Spain’s time zone to be one hour ahead. This would explain why Portugal is in the same time zone as Britain, despite being in the same location as Spain.