how can I work out the time correction of longitude to GMT
Answers
Answer:
The whole world is divided into 24 time zones. Each time zone is 15 degrees wide. It was agreed that the time in these zones must be coordinated to that of Greenwich. In the past, Greenwich was chosen to be the basis for time keeping in the world because zero degrees longitude passes that location. It was called GMT or the Greenwich Mean Time.
Today it was changed to UTC which means Universal Time Coordinated. The other 23 time zones is setting their local time from zero degrees longitude.
Suppose, you are located at 120 degrees East longitude and the UTC time is 00:00 or at midnight, what is your local time in that region?
Just divide 120 degrees by 15 degrees and you get a quotient of +8. The +8 means 8 hours after zero longitude time. Your local time is therefore 8:00 A.M of the same day to that of Greenwich.
If your timezone happen to be at 120 degrees west of Greenwich, you will get a quotient of -8. Your local time must be 8 hours before midnight of Greenwich. That local time is 4:00 P.M. of the previous day. If Greenwich is already Monday, your day is still Sunday at 4:00 P.M.
Always remember that when you are at the eastern part of the world, your local time is ahead of that of zero degrees longitude. The local time in the western part of the world is late than that of the zero degrees longitude
Step-by-step explanation:
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