.AT 17 MINUTES as well as 40 seconds past 8 at night, Greenwich Mean Opportunity, on July 20th it will certainly be precisely 55 years since Neil Armstrong came down on the Moon. Those 55 years amount to 20,089 days. Of those, 20,062 were 86,400 seconds long and 27 one second longer with the help of the addition of jump few seconds, a practice started in 1972. So those 55 years will definitely add up to 1,735,689,627 secs.