.AT 17 MINUTES and also 40 secs previous eight at night, Greenwich Mean Time, on July 20th it will be actually exactly 55 years considering that Neil Armstrong landed on the Moon. Those 55 years amount to 20,089 days. Of those, 20,062 were 86,400 few seconds long and also 27 one 2nd longer because of the addition of jump seconds, a technique begun in 1972. So those 55 years are going to add up to 1,735,689,627 seconds.