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.
250 Second = 0.069634577467249 Hour (sidereal)
Second to Minute | Second to Hour | Second to Week | Second to Month | Second to Year |250 Second equal 0.069634577467249 Hour (sidereal).
Every 1 Second = 0.00027853830986899 Hour (sidereal) and so, 250 Second = 250 multiplied by 0.00027853830986899 = 0.069634577467249 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:
| 240 Second = 0.066849194368559 Hour (sidereal) |
| 241 Second = 0.067127732678428 Hour (sidereal) |
| 242 Second = 0.067406270988297 Hour (sidereal) |
| 243 Second = 0.067684809298166 Hour (sidereal) |
| 244 Second = 0.067963347608035 Hour (sidereal) |
| 245 Second = 0.068241885917904 Hour (sidereal) |
| 246 Second = 0.068520424227773 Hour (sidereal) |
| 247 Second = 0.068798962537642 Hour (sidereal) |
| 248 Second = 0.069077500847511 Hour (sidereal) |
| 249 Second = 0.06935603915738 Hour (sidereal) |
| 250 Second = 0.069634577467249 Hour (sidereal) |
| 251 Second = 0.069913115777118 Hour (sidereal) |
| 252 Second = 0.070191654086987 Hour (sidereal) |
| 253 Second = 0.070470192396856 Hour (sidereal) |
| 254 Second = 0.070748730706725 Hour (sidereal) |
| 255 Second = 0.071027269016594 Hour (sidereal) |
| 256 Second = 0.071305807326463 Hour (sidereal) |
| 257 Second = 0.071584345636332 Hour (sidereal) |
| 258 Second = 0.0718628839462 Hour (sidereal) |
| 259 Second = 0.072141422256069 Hour (sidereal) |
| 260 Second = 0.072419960565938 Hour (sidereal) |
