This calculator allows you to convert from Second to Hour (sidereal) and in a reverse direction. To convert from Second to Hour (sidereal), enter the amount of Second into the first input and to convert from Hour (sidereal) to Second, enter the amount of Hour (sidereal) into the second input.
4 Second = 0.001114153239476 Hour (sidereal)
Second to Minute | Second to Hour | Second to Week | Second to Month | Second to Year |4 Second equal 0.001114153239476 Hour (sidereal).
Every 1 Second = 0.00027853830986899 Hour (sidereal) and so, 4 Second = 4 multiplied by 0.00027853830986899 = 0.001114153239476 Hour (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:
| 1 Second = 0.00027853830986899 Hour (sidereal) |
| 2 Second = 0.00055707661973799 Hour (sidereal) |
| 3 Second = 0.00083561492960698 Hour (sidereal) |
| 4 Second = 0.001114153239476 Hour (sidereal) |
| 5 Second = 0.001392691549345 Hour (sidereal) |
| 6 Second = 0.001671229859214 Hour (sidereal) |
| 7 Second = 0.001949768169083 Hour (sidereal) |
| 8 Second = 0.002228306478952 Hour (sidereal) |
| 9 Second = 0.0025068447888209 Hour (sidereal) |
| 10 Second = 0.0027853830986899 Hour (sidereal) |
| 11 Second = 0.0030639214085589 Hour (sidereal) |
| 12 Second = 0.0033424597184279 Hour (sidereal) |
| 13 Second = 0.0036209980282969 Hour (sidereal) |
| 14 Second = 0.0038995363381659 Hour (sidereal) |
