Why is Greenwich Mean Time important?

Answer 1

Greenwich Mean Time is very important, as it is the time zone that all other time zones are based around. For example GMT -5 is the time zone of New York.

Answer 2

Greenwich Mean Time (GMT) is the global time standard. The prime meridian at Greenwich, UK, is the reference line for GMT.

it is the time used to set all clocks all over the world. places like London use GMT as their time. Every country East of the UK sets its clock behind GMT and everywhere West sets its clock ahead. eg:

Alaska's capital, Juneau, is East of the UK, so Alaska has the time zone GMT-11hrs. France's capital, Paris, is West of the UK, so Paris has the time zone GMT+1hrs. So when it is 12noon in the UK it's 1am in Alaska and 1pm in France.

What number comes after GMT is determined by lines which are set at even intervals around the world. However, in many places the lines are bent to fit around country borders, state boundaries and islands. here is a good site which shows clearly all of the time zones of the world:
Greenwich Mean Tim is a global time standard. This was a term used originally as a way to describe the mean solar time that was used by the Royal Observatory located in Greenwich London. This standard of telling time is used in areas including South Africa, Australia, Malaysia, Pakistan, and other such countries throughout the Eastern Hemisphere.

Answer 3

GMT is the base time upon which all other timezones are referenced, for example New York is GMT-5, Sydney is GMT+10, so there is 15 hours between sydney and New York, and Sydney is 10 hours ahead of GMT.

Sir Sanford Fleming was the creator of standardized time zones.

Answer 4

Greenwich Mean Time (GMT) is the time at the Royal Observatory in Greenwich, England, which is located on the Prime Meridian. It is one of the two bases for worldwide times. This time should be the same as UTC (Universal Coordinated Time) twice a year, on the equinoxes.

(The word mean indicates that the time is based on an average of the "noon" time at which the Sun appears overhead at Greenwich, not the actual time, which changes during the year because England is north of the tropics.)

Answer 5

The meridian that passes through the observatory at Greenwich, England was designated the prime meridian, 0° longitude, directly opposite where the international date line should be.

Answer 6

Greenwich Mean Time is very important, as it is the time zone that all other time zones are based around. For example GMT -5 is the time zone of New York.