.AT 17 mins and also 40 seconds past 8 in the evening, Greenwich Mean Opportunity, on July 20th it will definitely be exactly 55 years given that Neil Armstrong landed on the Moon. Those 55 years add up to 20,089 times. Of those, 20,062 were actually 86,400 few seconds long and 27 one 2nd longer due to the addition of leap few seconds, a method started in 1972. So those 55 years are going to amount to 1,735,689,627 secs.