.AT 17 moments and 40 few seconds past 8 at night, Greenwich Way Time, on July 20th it will definitely be actually exactly 55 years because Neil Armstrong came down on the Moon. Those 55 years add up to 20,089 days. Of those, 20,062 were 86,400 secs long and also 27 one second longer due to the addition of surge secs, a strategy started in 1972. So those 55 years will amount to 1,735,689,627 secs.