Template:Year article header zc

This template is used by Template:Year_article_header to compute Zeller's congruence to determine if a year is a common or leap year, a leap year being divisible by 4 and not divisible by 100, or divisible by 100 and 400, and to indicate which day of the year it starts on and the year type (exceptional, leap, or common). (link displays the full calendar) of the Gregorian calendar, the year of the Common Era (CE) and Anno Domini (AD) designations,