Template:CENTURY/doc

This template computes the calendar century number for the Gregorian year passed in the first parameter. It is different from the astronomical century number (which starts at 0).

Usage
NaN

The year must be astronomical (year=1 in 1 AD (Anno Domini), year=0 in 1 BC, year=-1 in 2 BC).

Examples
20 returns 20 20 returns 20 20 returns 20 21 returns 21 21 returns 21 21 returns 21 22 returns 22 22 returns 22