This template returns the number of full years and surplus days between two specified dates. If only one date is entered, the template returns the number of full years and surplus days between the specified date and today's date.

This template does not generate a sort key. In a sortable table, use {{ayd}} which redirects to {{age in years and days nts}}.

Dates uses the Gregorian calendar, without any Julian correction for proleptic Gregorian dates where the calendar was not effectively applied.

Each date can be entered in a single parameter, or each date can be entered as three parameters: year, month, day.

• {{age in years and days|15 May 2010}} → 14 years, 224 days
• {{age in years and days|12 Aug 2003|24 Sep 2011}} → 8 years, 43 days
• {{age in years and days|19 Jan 1689}} → 335 years, 341 days
• {{age in years and days|4 October 1582|Oct 15, 1582}} → 11 days
• {{age in years and days|1989|7|23}} → 35 years, 155 days
• {{age in years and days|1989|7|23|2003|7|24}} → 14 years, 1 day
• {{age in years and days|2007-03-02|2008-03-02}} → 1 year, 0 days
• {{age in years and days|1999-11-07|2112-02-15}} → 112 years, 100 days

An error is shown if an entered date is not valid (1800, 1900 and 2100 were not leap years).

• {{age in years and days|31 January 1892|29 February 1900}} → Error: Second date should be year, month, day

Dates before the Common Era can use BC or BCE in a single parameter, or astronomical year numbering: 1 BCE is represented by 0, 2 BCE by −1, 3 BCE by −2 etc.

• {{age in years and days|13 April 753 BC|11 March 1986}} (proleptic) → 2,737 years, 332 days (1,000,000 days)
• {{age in years and days|-752|4|13|1986|3|11}} (proleptic) → 2,737 years, 332 days

The default is to separate years and days with a comma. The separator is "and" if |sep=and is used.

The default calculates an age—the day of the second date is not included in the calculation. A duration including the second date is calculated if |duration=on is used.

• {{age in years and days|1 Jan 2011|31 Dec 2012}} → 1 year, 365 days
• {{age in years and days|1 Jan 2011|31 Dec 2012|sep=and}} → 1 year and 365 days
• {{age in years and days|1 Jan 2011|31 Dec 2012|duration=on}} → 2 years, 0 days

Returns the number of full years and surplus days between two specified dates (or, if only one date is entered, between the specified date and today's date)

Template parameters[Edit template data]

This template prefers inline formatting of parameters.

Parameter		Description	Type	Status
Earlier date	1	The earlier date being compared	Date	required
Later date	2	The later date being compared Default Today's date	Date	suggested
Separator	sep	Defines a custom separator between the years and days Suggested values and Default ,	String	optional
Duration?	duration	Set to "on" to include the second date in the calculation; will return a result one higher than if left off	Boolean	optional