Find the difference between the Indian Standard Time and the Greenwich Mean Time?
Answers
Answer:
Differences between GMT and IST
GMT (Greenwich Mean Time)
IST (Indian Standard Time)
The Greenwich Mean Time was established by the Royal Observatory in 1675 with the purpose of assisting navigators at sea. The Indian Standard Time was established as the official time zone of India upon its independence on August 15th, 1947
When calculating GMT it is considered equivalent to UT1 (the modern form of mean solar time at 0° longitude), but this meaning can differ from UTC by up to 0.9 seconds. The IST is calculated on the basis of a clock tower in Mirzapur (with coordinates 25.15° North Latitude and 82.58° East longitude).
Because of Earth’s uneven angular velocity in its elliptical orbit, GMT is rarely the exact moment the Sun crosses the Greenwich meridian Official time signals are generated by the Time and Frequency Standards Laboratory at the National Physical Laboratory in New Delhi, for both commercial and official use. The signals are based on atomic clocks and are synchronised with the worldwide system of clocks
Since legal, political and geographical criteria, are used in the drawing of time zones, actual time zones do not precisely adhere to meridian lines.
The same holds true for GMT as well because there will be discrepancies between legal and geographic GMT
The IST is insufficient to cover the geographical expanse of India.
The reason is that such is the east-west distance covers about 2933 kilometres and 29 degrees of longitude resulting in the sun rising and setting almost two hours earlier on the eastern borders of India than its western borders.
The proposals to divide the country into different timezones have been taken into consideration by the government of India as of late to overcome this drawback.
The term Greenwich Mean Time is used commonly in the United Kingdom and in the Commonwealth of Nations such as Australia, New Zealand and many other countries of the Eastern Hemisphere Indian Standard Time is used observed in India and Sri Lanka but it takes references from the UTC (Universal Time Coordinate). The UTC has been developed as a successor to the Greenwich Mean Time
Explanation:
Hope it helps you...
Answer:
Difference Between GMT and IST. Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London which is measured at midnight.... India has only one time zone. IST is ahead of GMT by 5:30 Hours