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Time Zone





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Time Zone


Select a city to view the time:

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Time Zone


How many times have we wondered about the local time in a particular city in the world, for example, before calling a friend who lives in a very far country or to view an important television event taking place in a different continent? I am sure very often.
It is called 'time zone' and normally is not very easy to calculate. This tool allow you to know the local time in more than 900 cities in just few moment.
Select a city from the drop down menu and in a second you will know the time zone you are looking for. This tool is a javascript code, so ensure that it is enabled on your PC.
Do you ever wondered what time zone is?
Different zones of the Earth could have the same hour, it would be simple, but 9am in France would mean 9am in New York, when still the Sun is down.
We need time zone to have an uniform standard time for legal, commercial, and social purposes.
Before Greenwich Mean Time in 1675 and after mechanical clocks were set in every city, the time was extremely various. Every city used solar time, that meant that every city had its own time.
When rails and telecommunications improved though problems raised everywhere and people really needed to adopt a standard time.
After the so-called Railway Time, first person proposing a worldwide system of time zones, was Italian mathematician Quirico Filopanti.
The system was well developped: all time zones were specified as an offset from Greenwich Mean Time (so-called GMT), considered the mean solar time at the meridian passing through the Royal Observatory in Greenwich, London.
Since then time zone was a geographical region where everybody observes the same standard time.






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