This calculator allows you to convert from Second to Second (sidereal) and in a reverse direction. To convert from Second to Second (sidereal), enter the amount of Second into the first input and to convert from Second (sidereal) to Second, enter the amount of Second (sidereal) into the second input.
20 Second = 20.054758310568 Second (sidereal)
Second to Minute | Second to Hour | Second to Week | Second to Month | Second to Year |20 Second equal 20.054758310568 Second (sidereal).
Every 1 Second = 1.0027379155284 Second (sidereal) and so, 20 Second = 20 multiplied by 1.0027379155284 = 20.054758310568 Second (sidereal).
What is the second?
The second is an important unit of time. It is the main unit of time in the SI system of units. It can be defined as the time it takes an electromagnetic field to propagate through 3 x 10 5 km of vacuum.
One solar day has 86,400 seconds. There are 60 second per minute.
Second is not small and specific enough to be used by scientists and engineers so smaller units were derived such as:
| 10 Second = 10.027379155284 Second (sidereal) |
| 11 Second = 11.030117070812 Second (sidereal) |
| 12 Second = 12.032854986341 Second (sidereal) |
| 13 Second = 13.035592901869 Second (sidereal) |
| 14 Second = 14.038330817397 Second (sidereal) |
| 15 Second = 15.041068732926 Second (sidereal) |
| 16 Second = 16.043806648454 Second (sidereal) |
| 17 Second = 17.046544563982 Second (sidereal) |
| 18 Second = 18.049282479511 Second (sidereal) |
| 19 Second = 19.052020395039 Second (sidereal) |
| 20 Second = 20.054758310568 Second (sidereal) |
| 21 Second = 21.057496226096 Second (sidereal) |
| 22 Second = 22.060234141624 Second (sidereal) |
| 23 Second = 23.062972057153 Second (sidereal) |
| 24 Second = 24.065709972681 Second (sidereal) |
| 25 Second = 25.06844788821 Second (sidereal) |
| 26 Second = 26.071185803738 Second (sidereal) |
| 27 Second = 27.073923719266 Second (sidereal) |
| 28 Second = 28.076661634795 Second (sidereal) |
| 29 Second = 29.079399550323 Second (sidereal) |
| 30 Second = 30.082137465851 Second (sidereal) |
