.AT 17 mins and also 40 secs previous eight in the evening, Greenwich Mean Opportunity, on July 20th it will definitely be exactly 55 years because Neil Armstrong arrived on the Moon. Those 55 years add up to 20,089 times. Of those, 20,062 were actually 86,400 secs long and also 27 one 2nd longer because of the add-on of jump seconds, a technique begun in 1972. So those 55 years will certainly amount to 1,735,689,627 few seconds.