The Indicators are according to atomic clocks and synchronised While using the worldwide process of clocks that assistance Coordinated Universal Time. India's time zone is based on the 82.5°E meridian, which passes through Mirzapur. The 50 %-hour offset was selected to maintain the time close to the mean photo voltaic https://currenttimeinindia71220.wikigop.com/450160/est_to_ist_no_further_a_mystery