allahabad
jaipur
82.5 E
5.5 * 15 = 82.5 82.5° east longitude
Indian Standard Time (IST) is measured at 82.5 degrees east longitude, which corresponds to five and a half hours ahead of Coordinated Universal Time (UTC+5:30). It is the time zone used in India and Sri Lanka.
The need for the Indian Standard Meridian was to establish a common reference point for time determination in India. By adopting the 82.5° E longitude as the standard meridian, it helped in organizing the country into a single time zone, simplifying time-keeping and communication processes across the nation.
The standard meridian of India is 82.5° East longitude. It crosses the state of Uttar Pradesh (UP) near the city of Allahabad (Prayagraj). This meridian is significant as it serves as the reference point for Indian Standard Time (IST).
The Prime Meridian, located in Greenwich, London, represents the 0° longitude for the world standard time, also known as Greenwich Mean Time (GMT).
Indian Standard Time is calculated with a time offset of UTC + 5:30. If it is midnight UTC, then it will be 5:30am IST (Indian Standard Time). Indian Standard Time also covers Sri Lanka and the islands of Lakshadweep.
ZERO 0 Longitude
IT DEPENDS WERE U LIVE......i am based in Delhi i.e northern part of India
Indian Standard Time (IST) is measured according to the time at 82.5°E longitude, which runs through Mirzapur in Uttar Pradesh. The IST is 5 hours and 30 minutes ahead of Coordinated Universal Time (UTC+5:30).
82.5 E longitude, which is just west of the town of Mirzapur, near Allahabad in the state of Uttar Pradesh.IST is 5 hours 30 minutes ahead of GMT which is calculated at 4 minutes per longitude as difference from Greenwich which is 0 degress longitude..