11.4.7 Read again. Five sentences are missing. Match the sentences (A-F) to the gaps (1-5). There is one extra sentence. A The 360 degrees of the Earth's longitude were divided into 24 sections, each comprising 15 degrees. B Following this principal, we can see that if it is 12:00 noon on the Greenwich Meridian, the time in New Zealand will be UTC +12. C However, because the Earth is spherical, it wouldn't make sense for the whole world to use UTC. D In addition, there is the fact that many countries observe daylight saving time, altering their local time zone by an hour for six months of the year. E Move 15 degrees north and you will be in the time zone UTC +2. F It is calculated by combining data about the Earth's rotation with the time shown by 400 atomic clocks distributed worldwide. 1 2 3 4 5

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