With respect to the longitudinal extent, 82°30′ longitude passes through the middle of India. (2) The difference between the local time at 82°30′ E longitude and the local time at the extreme west and east longitude passing through India is not more than one hour.
What is the maximum difference between local time and standard time?
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.
|Basis for Comparison||Local Time||Standard Time|
|Variations||Changes continuously with the change in longitude.||Remains same for a particular country.|
What is the difference between geographical time and standard time?
The Geographical time represents the earth history and Standard time is the eastern and western time zone of earth. Explanation: Standard time is a synchronization of the clocks with a specific geographical region and is the opposite of using a solar time that uses a locally chosen meridian.
What is local time Class 9?
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.
Why does Itanagar have more difference between local time and standard time than Bhubaneswar?
Answer: Naturally, they experience such variation in the local time because of the longitudinal distance of 30° longitudes. This longitudinal distance of 30° longitudes makes a difference of 2 hours between the Arunachal Pradesh and the Gujarat.
How is local time calculated?
LSTM = The local standard time meridian, measured in degrees, which runs through the center of each time zone. It can be calculated by multiplying the differences in hours from Greenwich Mean Time by 15 degrees per hour. Positive = East, and negative = West.
What is local time 6th standard?
Answer: A local time is a time calculated on the basis of a specific meridian passing through a particular place, though the place may be included in some other time zone. All the places located on the same meridian have noon at the same time. Places located on different meridians have different local times.
Why it is necessary to have a standard time?
The time of a place depends on the longitude that passes through it. … Since many meridians pass through it, it is important to adopt the local time of one central meridian of a country as the standard time for the country. Thus, we need a standard meridian for the country.
What is called standard time?
Standard time is the synchronization of clocks within a geographical region to a single time standard, rather than a local mean time standard. … The standard time in each time zone has come to be defined as an offset from Universal Time.
What is meant local time?
: time based on the meridian through a particular place as contrasted with that of a time zone.
How is local time different from GST?
Gulf Standard Time is not adjusted for daylight saving therefore GST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Gulf Standard Time remains the same.
What is local time Class 9 ICSE?
The local time of a place is determined with reference to the position of the Sun in the sky. When all places on the same meridian of longitude have noon, it is considered as their local time.
Why is 82.30 has been selected?
2 Answers. The Earth has been divided into 24 time zones of one hour each. … This causes a time lag of 2 hrs from Gujarat to Arunachal Pradesh to avoid confusion and to have a standard time for reference, The 82.30’Eastern Longitude has been taken as the standard time for the whole country.
What is the distance between two longitudes?
The distance between longitudes at the equator is the same as latitude, roughly 69 miles. At 45 degrees north or south, the distance between is about 49 miles (79 km). The distance between longitudes reaches zero at the poles as the lines of meridian converge at that point.
Why the difference between IST and GMT is 5 hours and 30 minutes?
The longitude difference between Mirzapur and the United Kingdom’s Royal Observatory at Greenwich translates to an exact time difference of 5 hours 30 minutes. … So, The latitudinal distance between London and Mirzapur is the reason for difference in times.