The International Dateline

It is interesting to know that a date last for 24 hours. I saw the following quote on one of my friends chat status message.

A day lasts 24 hours, but a date lasts 48 hours!

Every one know that the world rotates and one part of earth sleeps while the other part runs in day life. To be more precise, for a person the day has 24 hours starting from 00:00:00 am to 23:59:59 PM. But when you see the date of the month. It starts for a person sitting @ x deg longitude @ 00:00:00 hours and ends for a person sitting @ x + delta deg. longitude on the west is? at 23:59:59 PM the previous da(y)te. So for a particular date to go out of the earth in not 24 hours and it will take 48 hours.

This is defined by the International DateLine. [Little hard to visualize, But Interesting…]

Cheers - Ranjith

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