it is necessary to adopt the local time of some central meridian because each degree of longitude differs by 4 minutes.so if we follow the time of each meridian it would be very difficult as the people in the same country will have different time and the people travelling around would have to change there time now and then.therefore a central meridian in the country is taken as the standard meridian and the whole country follows its time.
to avoid difficulties of the travellers , a uniform time is selected for the whole country
Pakistan is a country located in South Asia with a population exceeding 180 million people. The standard meridian of Pakistan is longitude 74 degrees, 22' east, and Lahore UTC/GMT plus 6 hours.
The prime meridian, the "zero" line of longitude, is defined as passing through the Royal Observatory in Greenwich, England.
england
There are a great multitude of nations which lie entirely west of the Prime Meridian. All of North, Central, and South America lie west of the Prime Meridian as do some European and African nations. European nations: Iceland Ireland Portugal African nations: Morocco Mauritania Senegal Gambia Guinea Guinea-Bissau Sierra Leone Liberia Cote d'Ivoire (Western Sahara)
The significance of standard meridian of India is that Standard meridian is used as the standard time for whole country. If it isn't there chaos will be created in the country so standard time is very important.
The standard meridian is taken as 82'30 Degrees. It is taken because it passes near Allahabad whicf lies almost at the center of the country.
Still considered a developing country, Costa Rica has the highest standard of living in Central America.
to avoid difficulties of the travellers , a uniform time is selected for the whole country
soyabali - 83.56 barbil - 78.23 Champua -82.45
Pakistan is a country located in South Asia with a population exceeding 180 million people. The standard meridian of Pakistan is longitude 74 degrees, 22' east, and Lahore UTC/GMT plus 6 hours.
Costa Rica
Costa Rica is often considered to have the highest standard of living among Central American countries. It has a stable economy, high levels of education and healthcare, and a strong focus on environmental sustainability.
Meridians are measured in degrees and fractions of degrees. Any line joining the two poles directly is a meridian and may have any value up to 180 degrees east or west. The standard meridian in India was chosen for time purposes within the country, as measured from the prime meridian.
India is situated from west to east in about 30 longitudes . It takes4 minutes to cross a longitudes . India is situated between 67 degree E to 97 degree E. Hence there is a two hours difference in the timings of the western most extreme extremity and the easternmost extremity if there is no standard meridian in India we have to advance our watch by 4 minutes on each longitude, if we travel from west to east . In order to avoid the problem we have chosen 82 degree 30 E as standard meridian and its local time is taken a standard throughout the country.
The southernmost land crossed by the Prime Meridian is the Antarctic continent, but there are no countries there. The southernmost country on the Prime Meridian is Ghana.
From Gujarat to Arunachal Pradesh , there is a time lag of 2 hrs. so , time along the standard meridian of India is taken as standard time for the whole country as it avoids confusion that could have been occur due to the following of different local times.