What is a standard time?
Why do we need a standard time?
Differentiate between local time and standard time.
Answers
Answer:
1)What is a standard time?
Ans: Standard time is the synchronization of clocks within a geographical area or region to a single time standard, rather than using solar time or a locally chosen meridian (longitude) to establish a local mean time standard.
2)Why do we need a standard time?
Ans: The time of a place depends on the longitude that passes through it. Therefore, the standard time for each country is usually taken as the time of the central meridian that passes through it. ... Thus, we need a standard meridian for the country.
3)Differentiate between local time and standard time.
Ans: Local time :
1. Local time of a place is the time of its meridian.
2. Each place has its own local time.
3. When it is noon the local time is 12 O'clock.
4. All places on a meridian has same local time.
5. The place in the east are ahead of west in time. For 1° longitude there is a difference of 4 minutes.
Standard time :
1. Standard time is the time of central meridian of an area.
2. All places have a uniform time.
3. It has no relation with moon or height of the sun.
4. All places in same region have the same standard time.
5. There is no change in time. So it is known as standard time.
Hope it helps you.
Answer:
Comparison Chart
Basis for Comparison Local Time Standard Time
Variations Changes continuously with the change in longitude. Remains same for a particular country.
Longitude Places on the same longitude have same local time. Places on the same longitude have different standard time.
Reckoned by Shadow cast by the sun. Time zones
Explanation:
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