Convert between Second and other Time units.

Second

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:

  • One millisecond which equals 10 -3 s.
  • One microsecond which equals 10 -6 s.
  • One nanosecond which equals 10 -9 s.
  • One picosecond which equals 10 -12 s.
Second to Minute | Second to Hour | Second to Week | Second to Month | Second to Year |
Attosecond Convert from Second to Attosecond
Century Convert from Second to Century
Day Convert from Second to Day
Day (sidereal) Convert from Second to Day (sidereal)
Decade Convert from Second to Decade
Femtosecond Convert from Second to Femtosecond
Fortnight Convert from Second to Fortnight
Hour Convert from Second to Hour
Hour (sidereal) Convert from Second to Hour (sidereal)
Microsecond Convert from Second to Microsecond
Millennium Convert from Second to Millennium
Millisecond Convert from Second to Millisecond
Minute Convert from Second to Minute
Minute (sidereal) Convert from Second to Minute (sidereal)
Month Convert from Second to Month
Month (synodic) Convert from Second to Month (synodic)
Nanosecond Convert from Second to Nanosecond
Novennial Convert from Second to Novennial
Octennial Convert from Second to Octennial
Picosecond Convert from Second to Picosecond
Planck time Convert from Second to Planck time
Quindecennial Convert from Second to Quindecennial
Quinquennial Convert from Second to Quinquennial
Second (sidereal) Convert from Second to Second (sidereal)
Septennial Convert from Second to Septennial
Shake Convert from Second to Shake
Week Convert from Second to Week
Year Convert from Second to Year
Year (Julian) Convert from Second to Year (Julian)
Year (leap) Convert from Second to Year (leap)
Year (sidereal) Convert from Second to Year (sidereal)
Year (tropical) Convert from Second to Year (tropical)