.AT 17 moments and also 40 few seconds previous eight in the evening, Greenwich Mean Opportunity, on July 20th it will certainly be actually precisely 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 with the help of the enhancement of leap few seconds, a method started in 1972. So those 55 years are going to amount to 1,735,689,627 seconds.