This template returns the number of full years between two specified dates. If the second set of parameters is not included, it returns the number of full years between a specified date and today's date.
Dates are checked for validity. For example, 29 February 2000 is accepted, but 29 February 1900, 1800 or 2100 are not valid dates.
{{age|1892|1|31|1900|2|29}} → Error: Second date should be year, month, day
{{age|1789|5|1|1800|2|29}} → Error: Second date should be year, month, day
Partial dates such as July 1989 (no day) or 1989 (no month and no day) can be entered using 0 for missing values. Having no year, or having a day with no month is an error.
Please remember to avoid phrasings such as "17 years ago" or "Jones is 65 years old", even when they use this template. See MOS:RELTIME for more information.
When entering dates before the Common Era, use astronomical year numbering: 1 BCE is represented by 0, 2 BCE by -1, 3 BCE by -2 etc. For example, the following gives the number of full years since the battle of Cannae, which took place on August 2, 216 BCE:
{{age|-215|8|2}} → 2238
{{age|August 2, 216 BCE}} → 2238
The options described at Module:Age can be used, for example:
When only one date is entered, the current date is used for the other date. The template outputs a span that can be used by a calling infobox to detect if only one date was used. The following shows two examples with the exact wikitext that is produced, as seen at Special:ExpandTemplates:
This template returns the number of full years between two specified dates. If the second set of parameters is not included, it will return the number of full years between a specified date and today's date.
Combines functions of {{Birth date}}, {{birth-date}}, {{birth date and age}}, {{birth year and age}}, {{death date}}, {{death-date}}, {{death date and age}}, and {{death year and age}}.
To display approximate birth year and current age given a particular date (e.g. when a dated reference mentions the age of a person), only works for living people.