Globe: Latitudes and Longitudes — Social Science STD 6 — Question
Rajasthan BoardEnglish MediumSTD 6Social ScienceGlobe: Latitudes and Longitudes3 Marks
Question
Why is it necessary to have standard time? Also define Indian Standard Time $\text{(IST).}$
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Answer
It is necessary to have a standard time because:
Different meridians have different time, which makes it difficult to prepare a time table for trains and flights.
It helps to maintain uniformity of time throughout the country.
Indian Standard Time: In India, the longitude of $82^\circ \ 30\ 'E$ is treated as the standard meridian and the local time at this meridian is taken as the standard time for the whole country. It is known as Indian Standard Time $\text{(IST).}$
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