what is the difference between greenwich and IST 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
Hope it is helpful.
Answer:
the difference between Greenwich and IST is 5 hour 30 minutes