The Signals are based on atomic clocks and synchronised While using the worldwide technique of clocks that assist Coordinated Common Time. India's time zone relies over the eighty two.5°E meridian, which passes through Mirzapur. The fifty percent-hour offset was preferred to maintain the time near to the signify solar time https://ist-time65063.wikififfi.com/2481151/5_simple_techniques_for_countdown_timer