To help compare
orders of magnitude of different
times this page lists times between
104 seconds and 10
5 seconds (approximately 2.78 hours and 27.8 hours).
See also times of other orders of magnitude.
- shorter times
- 10,379 seconds = 2 hours 52 minutes 59 seconds = the length of the record New York – London Concorde flight
- 19,872 seconds = 5.52 hours – half-life of mendelevium-257
- 25,200 seconds = 7 hours – one work day in France.
- 28,800 seconds = 8 hours – one work day in many Western countries
- 28,800 seconds = 8 hours – common human daily need for sleep
- 36,000 seconds = 10 hours – one work day in ancient Egypt, according to the oldest definition of an hour
- 37,296 seconds = 10.36 hours – half-life of erbium-165
- 54,000 seconds = 15 hours – approximate length of Wagner's opera cycle Der Ring des Nibelungen
- 72,606 seconds = 20 hours 10 minutes 6 seconds – the world record of human standing motionlessly as of 2005

- 80,100 seconds = 22.25 hours – approximate time taken to solve the DES Challenge III of RSA on January 18 - 19, 1999

- 86,164 seconds = 23 hours 56 minutes 4 seconds – time for Earth’s rotation around its axis
- 86,400 seconds = 24 hours = one day
- 91,404 seconds = 25.39 hours – half-life of fermium-252
- longer times