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What’s the difference between IST and GMT? A. IST is 5.5hours ahead of GMT B. IST is 6.5hours ahead of GMT C. IST is 7.5hours ahead of GMT D. IST is 8.5hours ahead of GMT

What’s the difference between IST and GMT?
A. IST is 5.5hours ahead of GMT
B. IST is 6.5hours ahead of GMT
C. IST is 7.5hours ahead of GMT
D. IST is 8.5hours ahead of GMT

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 9723 Points
10 days ago
IST and GMT are two different time zones, which are used to calculate the time at different places around the world. If the sun ascends at 6 AM in India, the sun will ascend at 11:30 AM in IST in Greenwich. Or, suppose, it is 9:30 PM now in India; it is still 4 PM in London. Complete answer: A time zone, of a particular territory of the world, follows a standardized time standard for commercial, social, and legal purposes. Two such time zones are GMT and IST. The mean solar time estimated at midnight, at the Royal Observatory in Greenwich, London is Greenwich Mean Time (GMT). GMT is also used synonymously with the Universal Time Coordinate (UTC) in English-speaking nations. The Indian Standard Time (IST) is the time zone observed in India. Along with other seasonal factors, it does not take daylight saving time into account. IST is 5:30 hours ahead of GMT. Additional Information: Greenwich Mean Time was defined in 1675. The Royal Observatory worked with the final objective in mind to help the sailors settle on the sea. Different urban communities in England used to retain distinctive neighborhood times, hence it allowed the sailors to retain a particular reference time. GMT is called Greenwich Meridian Time, otherwise. This “Meridian” signifies the beginning of the world's time zones. GMT is the time it takes for the world to rotate from twelve to twelve. The IST is measured taking into account the Mirzapur check tower (directions 25.15 degrees North Latitude in addition to 82.58 degrees East longitude). It defined IST as the official time zone for the nation in 1947 after India obtained its autonomy. Kolkata and Mumbai, however, adhered separately to their nearby time until 1948 and 1955. So, the correct option is Option A. Note: IST is for India and Sri Lanka, but Greenwich Mean Time or Universal time coordination is for the entire world. The focal observatory of Indian Standard Time was relocated to Chennai to be closer to the UTC+5:30 coordinates.

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