.AT 17 moments and also 40 few seconds past eight at night, Greenwich Way Time, on July 20th it will be specifically 55 years considering that Neil Armstrong came down on the Moon. Those 55 years add up to 20,089 days. Of those, 20,062 were actually 86,400 secs long and 27 one second longer because of the addition of leap seconds, a method begun in 1972. So those 55 years are going to amount to 1,735,689,627 secs.