no.
it's just an imaginary line through Greenwich, England, right in the middle of a time zone. Of course, if you are travelling from France to England, depending on your route, you may have to cross the Prime Meridian. The standard time zone for Engalnd is UTC +/- 0. The standard time zone for France is UTC +1. So if you leave France from Le Havre and travel in a straight line to Brighton, England, then, at some point of your journey, in the middle of La Manche (the English Channel) you will cross the Prime Meridian. Maybe this would be a good point at which to put your watch back one hour so that when you arrive in England, your watch will show the correct time for the UK time zone! However, the time adjustment is necessary because you will have moved into a different time zone, not because you have crossed the Prime Meridian!
For the same reasons, a similar 'time' adjustment will be necessary when travelling between other some other places. For example, a trip between Norway (UTC +1) and Scotland (UTC +/- 0) takes the traveller into different time zones, and, coincidently, the route has to cross the Prime Meridian as well! (Unless you go the long way round!)
The date does not change for you simply by crossing the prime meridian. But keep in mind that the date does change there every 24 hours, like any other part of the globe. If you happen to be crossing the prime meridian at the moment of midnight, then for you the date will change as you cross. But the date will change because of the moment of midnight, not because you crossed over the prime meridian.
The International Date Line, the other half of the Great Circle that contains the prime meridian, is another matter. Almostalways, you can cross back and forth over the IDL and you will go from one date to another, and back again. Strangely, if you pass over the IDL from west to east at the moment of midnight, you will NOT change dates. But then if you cross back over, you WILL. The workings of the IDL are very strange and in some ways counter-intuitive until you get the hang of it.
Depends which direction you travel away from it.
If you fly east from the Prime Meridian, you have to move your watch ahead faster than it normally runs,
and you lose time.
If you fly west from the Prime Meridian, you get to slow time down, by letting your watch run slower
than normal. If you move west fast enough, you can actually move your watch backwards, and you
get to live the same period of time more than once.
The earlier prime meridian was established by the British at the Royal Observatory in Greenwich, London in 1851. This prime meridian later became internationally recognized and was adopted as the starting point for measuring longitude.
As you travel east, you move into earlier time zones, which means the time is earlier than your starting point to the west. This is because the Earth rotates from west to east, causing the sun to rise earlier in the east.
The opposite longitude from the Prime Meridian (Greenwich Meridian) is the line of 180° longitude, which is both 180° east and 180° west. This would ideally be the International Date Line. But the date line has been repositioned east or west for convenience. Countries either want a consistent date (e.g. Alaska and the Aleautians) or want to have an earlier or later date than their geographical position would dictate (e.g. Kiribati).
If you fly west from the prime meridian, you will gain hours, not lose them. This is because you are crossing time zones in a westerly direction, where time is typically later than the time at the prime meridian.
3 PM is earlier than 5 PM.
The earlier prime meridian was established by the British at the Royal Observatory in Greenwich, London in 1851. This prime meridian later became internationally recognized and was adopted as the starting point for measuring longitude.
As you go west of Greenwich you go earlier and as you go east you go later.
The term "meridian" means "midday" or noon.The original definition of the Prime Meridian placed it at the "center" of the day, or noon, when the Sun could be determined as "directly overhead" at some point along the 0° meridian. This meant that midnight, the division between days, was at the 180° meridian, or "International Date Line", when it was noon in Greenwich. At that point, all points on the globe are marking the same calendar day.Because the Sun arrives overhead earlier east of the Prime Meridian, the time there is already after noon that day. Points west of the Prime Meridian will have their noon later that day, so they are "earlier" in the day.The terms "ante meridiem" (A.M. before noon) and "post meridiem" (P.M. after noon) follow the same convention. When it is afternoon at the Prime Meridian, a new day begins at the Date Line and "moves west" with the passing hours. Except at midnight, the Date Line will indicate a "day later" to its west than to its east.
It is later.
Later(s)
As you travel east, you move into earlier time zones, which means the time is earlier than your starting point to the west. This is because the Earth rotates from west to east, causing the sun to rise earlier in the east.
Later
earlier
The easiest changes are to forage earlier in the day, and / or later into the night. Seeking cover and water will become more important.
The opposite longitude from the Prime Meridian (Greenwich Meridian) is the line of 180° longitude, which is both 180° east and 180° west. This would ideally be the International Date Line. But the date line has been repositioned east or west for convenience. Countries either want a consistent date (e.g. Alaska and the Aleautians) or want to have an earlier or later date than their geographical position would dictate (e.g. Kiribati).
Earlier.
earlier Montana is an hour earlier it can be noon here it would be eleven in Washington