CLASS-9 CBSE
what is the maximum difference between the local time and standard time in India?
Answers
Answer:
Local time implies the time of a particular country, as regards the meridian running through it. On the contrary, standard time is referred as the official local time of a region ascertained by the distance from the Prime Meridian of the meridian running through the area. Here we’ll break down the significant differences between local time and standard time.
Earth rotates on its axis, leading to sun rise and sun set in different parts of the world. The part of the earth which receives sunlight, experience day whereas the part in the darkness experience night. In other words, different parts of the earth receive daylight at different times.
Due to this, the earth is divided into sections called as time zones. The earth completes one rotation of 360 degrees in 24 hours, i.e. it moves about 15 degrees in every hour. Therefore, the earth is parted into 24 time zones and each time zone is 15 degrees longitude wide, i.e. each time zone is one hour apart from the other. These time zones play a significant role in determining the standard time and local time of a place.
Comparison Chart
BASIS FOR COMPARISON LOCAL TIME STANDARD TIME
Meaning Local time implies the time of a place determined on the basis of apparent movement of the sun. Standard time refers to the fixed time for places falling in the same meridian, set in a country by law.
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
Answer:
the earth is parted into 24 time zones and each time zone is 15 degrees longitude wide, i.e. each time zone is one hour apart from the other.
Standard Time
LOCAL TIME: CHANGES CONTINUOUSLY WITH CHANGE IN LONGITUDES.
STANDARD TIME:REMAINS SAME FOR A PARTICULAR COUNTRY.