INDIAN STANDARD MERIDIAN | WHAT IS IST | GEOGRAPHY CLASS 6 & 7
Indian Standard Time (IST) represents the time observed throughout India, with a time offset of UTC+5:30. India opted out of observing daylight saving time, (DST).
Indian Standard Time calculates on the basis of 82.5° E longitude, just west of the town of Mirzapur, near Allahabad in the state of Uttar Pradesh.