The Alerts are according to atomic clocks and synchronised With all the worldwide program of clocks that aid Coordinated Common Time. India's time zone is predicated around the 82.5°E meridian, which passes by way of Mirzapur. The 50 percent-hour offset was preferred to maintain the time near the mean photo https://isttimecom30236.wikiparticularization.com/2458162/about_jst_to_ist