**Full name:** century

**Plural form:** centuries

**Category type:** time

**Scale factor:** 3155760000

The SI base unit for time is the second.

1 second is equal to 3.1688087814029E-10 century.

Valid units must be of the **time** type.

You can use this form to select from known units:

A century is a period of 100 years, which can have either 24 or 25 leap years, depends on whether the year xx00 is a leap year or not.

We assume there are 25 leap year days in a typical century. A non-leap year of 365 days would have 86,400 * 365 = 31,536,000 seconds in it. Adding another 25 days adds 2,160,000 seconds, so there are a total of 3,155,760,000 seconds in a century that has 25 leap years.

century to day

century to millennium

century to sidereal month

century to fortnight

century to Julian month

century to synodic month

century to Julian year

century to hour

century to shake

century to second