.AT 17 mins and 40 seconds previous 8 in the evening, Greenwich Way Time, on July 20th it are going to be specifically 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 secs long and 27 one second longer because of the enhancement of jump secs, a practice started in 1972. So those 55 years will definitely amount to 1,735,689,627 seconds.