In million years, days on earth will last for 25 hours

A recent study done by scientists in America has shown that days on earth are getting longer and in million years from now, a day will last 25 hours on earth.

However, the process will take 200 million years in stretching hours of the day to 25 hours from 24.

The study done by scientists at the University of Wisconsin-Madison has said that the reason of this is the moon as it is moving away from the earth, affecting the earth spins on its axis.

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According to the research, currently, the moon is pulling away at the rate of 3.82 centimetres a year. The scientists further said that over a few billion years it Moon has slowly moved away from the earth slowing the earth's spin.

Researchers at Durham University and the United Kingdom's nautical almanac office also said that the day is lengthening by two milliseconds every 100 years and getting an extra minute in a day will take 6.7 million years.

They studied some 1.4 billion-year-old rock layers in northern China, known as the xiamaling formation, to determine what the earth was doing at the point in history, including the length of its days and distance from the moon.    

According to the research, 1.4 billion years ago a day on earth used to last for 18 hours.

The scientists' conclusions came through a new tool which combined astronomical theory, geologic data and a sophisticated statistical approach.  It enabled them to account for the uncertainty in the earth-moon relationship when studying rock samples.