Solution:The standard meridian of India is 82°30' East. The time meridian decides every standard time region generally upon a line of longitude precisely distinct by 15 degrees. The prime meridian is the beginning stage for the standard time regions. A standard meridian is laid out in every one of the nations with the goal that it is the focal longitude of the entire nation and that there is an equivalent time in the entire country.
The neighborhood seasons vary, starting with one spot and then onto the next. In India, there is a distinction of around 1 hour and 45 minutes in the nearby seasons of Dwarka in Gujarat and Dibrugarh in Assam. In this manner, embracing the nearby season of some focal meridian of a country as the standard time for the entire country is fundamental. The longitude of 82° 30'E is viewed as the standard meridian of India. The time at the standard meridian is considered the ideal opportunity for the nation and is known as the Indian Standard Time or IST.
Indian standard time is five and a half hours before the Greenwich Mean time (GMT). Greenwich is a spot in the United Kingdom through which the Prime meridian passes.