what is the reason of the time difference between the different countries?

Question

this has got to do witht he equator, the troics of both cancer and capricorn please.

Answer 1

At noon, a person standing on the equator would expect the Sun to be directly overhead. [Okay, so a more correct technical wording would be "at the apex of its arc across the sky in one day" instead of "direclty overhead", but you get the idea.]
First, if everyone had to have the same time, not everyone could have the Sun overhead at noon, could they? So, knowing that it takes [approximately] 24 hours for the Sun to go from overhead around to overhead again due to the earth's spin, the earth has to be divided up into 24 zones. Now the Sun can be overhead in each time zone at that time zone's noon. At the equator, where the earth's circumference is [approximately] 24,000miles, each time zone is [approximately] 1,000 miles across. Take these 1,000 mile apart points and extend them into lines converging at the Poles and that gives one the longitude lines which delineate the time zones' respective areas over the whole globe.

Answer 2

It has nothing to do with the equator, tropic of cancer/capricorn or for that matter any other latitude.

It has to do with the longitudes- the prime meridian and all the other lines of longitude.

All the points on one longitude have the same time, because for all of them the sun rose at the same time. But for two points on different longitudes, the sun rises at different times - the point on the longitude more to the east has an earlier sunrise.

Wouldn't it be wierd, if one country had its school starting at 9AM and another at 12 noon, but for both the countries it is 3 hours after sunrise???

So we have a time difference between countries lying on different lattitudes, so that even if the time at any given moment is not the same between the two countries, the people have the same feel for time: Everyone goes to school at 9 AM, three hours after sunrise.

Answer 3

The world is divided into 2 lines, longitude and latitude.

Longitude started from Greenwich(somewhere near London), is big circle passing thru both north and south pole, and it is like the line of cutted orange. It is divided into 24 lines.

Latitude is another circle that starts from equator as the largest circle, and moving north ward as the circle goes smaller until it reached the pole. At equator, it is 0 degree. At North, it is 90 degree north.

It also goes southward much the same as the north latitute. As it goes nearer to the south pole, the circle gets smaller. When it reached south pole, it is 90 degree south.

When the sun is at horizon in. . . say. . Hongkong, which is +8 of GMT (Greenwich Marine Time), time will probably at 6am. In London, the sun will still be in the night, due to the distance (Longitude) away, it is 10 pm.

Time difference has to do with the way earth is moving (revolving). As the sun rise from the east, the nation west of the sunrise wiill see the son an hour later(if it is one time zone away).

GMT is given as Alpha time zone. In Malaysia, Singapore and Hongkong, it is Hotel time zone. Thailand is Golf time zone.

Theorically, when it is sun rise at Hongkong (say 6 am), Thailand is till in the dark, about 5 am. But Japan & Auz sun will already be high up.

Hope you got the picture.

In the nut shell, it has to do with Longitute, and not Latitude. And gotto do with the way the earth move.

Cheers,

Answer 4

It doesn't have anything to do with the equator or the Tropic of Cancer or the Tropic of Cancer. By convention, the world is divided into 24 time zones as it takes the Earth 24 hrs to rotate once. Each zone is one hour ahead or behind the next, starting with the meridian of 0-degrees longitude (Greenwich, England). Depending on which zone a country lies in determines its local time. If two countries fit in the same time zone (like states in Eastern, Central, Mountain, or Pacific) they will have the same clock time.

Answer 5

Nothing to do with the equator or the tropics I'm afraid. Despite what some would have you believe, the Earth is in fact round.

Answer 6

The earth is round and the time differences are caused by the earth's positon in relation to the sun. When the sun appears at its highest point at one side of the earth it will be dark on the other side.

Answer 7

the earth is round, and revolves around itself. At any given time, half of it is facing the sun, and half of it is away - which means that on half the globe it's daytime, and on the other half it's night.

Since the earth takes 24 hours to revolve around its axis, every place on earth goes through this day-night circle. However, different locations are facing the sun in different times - which is why the time is different in different locations.

Answer 8

It's to try and give each country as much daylight as possible through out the year. The equator and tropic's have little to do with daylight conditions.

Answer 9

it has less to do with the lines you mentioned & has more to do with
1. the shape of the earth
2. lines of latitude (vertical lines)
3. the rotation of the earths around its bet axis causing night or day
4. the orbit of the earth around the sun, causing seasons
5. the distance from one point on a map to another

Answer 10

if it was the same time everywhere then it would be really weird - hey, does the sun shine when you have breakfast where you are? Mmmmmm, the world is round and we go round the sun that's why time goes around, just like money, so we all get our share