Question

when and where is GMT used?

Answer 1

Greenwich Mean Time, a standard time zone that doesn't change with seasons (no daylight savings time stuff) centered on Greenwich, England which is where the prime meridian (the 0\(^o\) for longitude, measuring east-to-west) was established long ago back in 1884.

That line of longitude (the prime meridian) connects with the one that runs on the other side of the planet known as the international date line. So if it's noon in Greenwich, England (or London, or anything else in that time zone north or south) it's midnight at the international date line.

Make sense?

Answer 2

uhmmm well i did when and where...not what haha..i knew what GMT was :)

Answer 3

i did ask*

Answer 4

Did that answer your question though? GMT is standard time, also know in the military (in 24-hour format) as Zulu.

i.e.: the missile launch is scheduled for 0130 zulu (1:30 AM GMT)

Answer 5

FYI: the lack of a ':' between hours and minutes in military time harkens back to the day it was used to send encrypted messages to naval vessels (namely submarines). Time synchronization is VERY important for many forms of encryption (which relies on a randomization key that is dependent on time as an input).

Answer 6

very trivial. nice :)