.AT 17 mins as well as 40 few seconds previous 8 at night, Greenwich Mean Time, on July 20th it will be exactly 55 years because Neil Armstrong arrived on the Moon. Those 55 years add up to 20,089 days. Of those, 20,062 were actually 86,400 few seconds long and also 27 one 2nd longer due to the enhancement of leap seconds, a strategy begun in 1972. So those 55 years will add up to 1,735,689,627 seconds.