Template:CENTURY

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

Syntax: 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 19 20 returns 20 20 returns 20 21 returns 20 21 returns 21 21 returns 21 22 returns 21 22 returns 22