Sage-Tips

What is the difference between GMT and the international date line?

IDL is an imaginary line located 180 degrees apart from GMT. This line seperates days of the week in western and eastern hemisphere. If there is sunday in eastern hemisphere,then there will be monday in the western hemisphere.

Are GMT and IDL the same?

GMT is the same as Western European Time. is a generally north-south imaginary line on the surface of the Earth, passing through the Bering Strait to the middle of the Pacific Ocean. The IDL designates the place where each calendar day begins.

Why International Date Line is different from the prime meridian?

The International Date Line lies on the opposite side of the world to the Prime Meridian (The Prime Meridian passes through Greenwich in London. It separates the Eastern and Western Hemispheres). But because you cross the IDL, you arrive 22 hours before you left!

What is the purpose of the International Date Line?

It is located halfway around the world from the prime meridian — the 0 degrees longitude line in Greenwich, England. The international date line functions as a “ line of demarcation ” separating two consecutive calendar dates. When you cross the date line, you become a time traveler of sorts!

Why GMT is considered as standard time?

How did Greenwich Mean Time become the international standard? In 1884 the Greenwich Meridian was recommended as the Prime Meridian of the World. As the reference for GMT, the Prime Meridian at Greenwich therefore became the centre of world time and the basis for the global system of time zones.

Why is the UK 0 GMT?

As the United Kingdom developed into an advanced maritime nation, British mariners kept at least one chronometer on GMT to calculate their longitude from the Greenwich meridian, which was considered to have longitude zero degrees, by a convention adopted in the International Meridian Conference of 1884.

What is the purpose of the international date line?

Why International Date Line is Zig Zag?

The International Date Line (IDL) passes through the Pacific Ocean. It is an imaginary line, like longitudes and latitudes. To avoid any confusion of date, this line is drawn through where the sea lies and not land. Hence, the IDL is drawn in a zig-zag manner.

Why international date line is Zig Zag?

What is the difference between gmt-12-00 hours and the International Date Line?

Exactly half a day or 12 hours difference between the time at places on the greenwich meridian and the places on the international date line. There are a few countries that uses GMT-12:00 hours as their country standard time like the Baker Islands and Howland Islands which are the United States Minor Outlying Islands.

What is the difference between GMT and IDL?

I’m assuming that Johnny Taylor Sanders guessed correctly what you mean by IDL. GMT is a civil time zone in the United Kingdom, almost exactly the same thing as UTC, the basis for time zone calculations. The International Date Line is a boundary between time zones roughly 180° E or W where the date differs by a day.

What is the difference between India’s time and the International Date Line?

That means India’s time is ahead of GMT ( Britain) by 5.5 hours. IDL is an imaginary line located 180 degrees apart from GMT. This line seperates days of the week in western and eastern hemisphere. If there is sunday in eastern hemisphere,then there will be monday in the western hemisphere. IDL is not a straight line.

What is the difference between UTC and International Date Line?

The International Date Line – Wikipedia, an imaginary line that separates time zones roughly 12 hours ahead of UTC from time zones roughly 12 hours behind. Which should I choose? The best that I can say is “some time in the middle of the night”.