.AT 17 moments as well as 40 secs previous 8 at night, Greenwich Method Time, on July 20th it will certainly be precisely 55 years due to the fact that Neil Armstrong landed on the Moon. Those 55 years amount to 20,089 days. Of those, 20,062 were 86,400 seconds long as well as 27 one 2nd longer because of the add-on of leap seconds, a practice begun in 1972. So those 55 years will certainly add up to 1,735,689,627 secs.