The Signals are based on atomic clocks and synchronised Using the worldwide system of clocks that support Coordinated Universal Time. India's time zone relies around the eighty two.5°E meridian, which passes via Mirzapur. The 50 %-hour offset was chosen to keep the time close to the signify photo voltaic time https://knoxefjtg.wikimillions.com/460480/considerations_to_know_about_stopwatch