write a paragraph about Indian standard time
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Answer:
On 1st September 1947 the Indian Standard Time (IST) was
introduced as the official time for the whole country.
The Indian Standard Time is observed throughout India, with a time
offset of UTC+5:30. This means that India is five and a half hours ahead of
Greenwich Mean Time. Unlike other countries, India does not observe Daylight
Saving Time. Indian Standard Time is computed on the basis of 82.5 degrees East
longitude from a clock tower in Mirzapur near Allahabad, as it near the
corresponding longitude reference line. Then, the Indian Government declared
the Indian Standard Time as the official time for the entire country (except
Kolkata and Mumbai which were to maintain their own time zones for some time to
come). The Central Observatory was moved from Chennai to Mirzapur so that it
would be closer to the UTC+5:30. Though India does not observe Daylight Saving
Time, it was observed briefly during the Sino-Indian war in 1962 and the
Indo-Pakistani wars in 1965 and 1971 respectively, so that energy consumption
by civilians would be reduced.