Template:Birth date and age/doc

Template:Tlb returns a living person's date of birth and age. Using this template rather than simply inserting the date into articles allows for the inclusion of hidden metadata about the date. This metadata can be used by web browsers and other software tools to extract the details, and display them using some other website or mapping tool, index, or search them.

This template is intended for use in an article about a living person. For an article about a dead person, use Template:Tlp with Template:Tlp.

Usage

Unnamed parameters for year, month, day

{{Birth date and age|year of birth|month of birth|day of birth|additional parameters}}

{{bda|year of birth|month of birth|day of birth|additional parameters}}

Named parameters for year, month, day

{{Birth date and age|year=year of birth|month=month of birth|day=day of birth|additional parameters}}

{{bda|year=year of birth|month=month of birth|day=day of birth|additional parameters}}

Additional parameters

The df (day first) and mf (month first) parameters indicate the intended date format to display. The appropriate parameter should be set to "y" or "yes" e.g. df=yes or mf=y.

The default output of this template is to display the month before the day. This default may not be appropriate for articles about people from parts of the world where the day precedes the month in a date. In such articles the parameter, "df", should be set to display the day before the month.

The parameter "mf", while not actually used by the template, will indicate that month first format is intended. Using these parameters can assist bots or other automated processing to detect which date format is intended; leaving the format as default may lead an editor or bot to change the format to an unintended value.

Do not specify both "df" and "mf" parameters in the same use of the template, as these formats are mutually exclusive.

Error tracking

Some kinds of invalid input are tracked in Category:Pages using age template with invalid date.

Also see Template:Clc.

hCard microformat

This template also returns the date, hidden by CSS, in the ISO 8601 standard. For example:

(<span class="bday">1993-02-24</span>)

Note: For the "foundation", "built" and similar set-up dates of companies, buildings etc., use Template:Tl (this will work for year-only or month-year dates). Because the ISO 8601 standard requires the Gregorian calendar, this template should not be used if the date is given in the Julian calendar.

For further information, visit the microformats project.

Notes

• Do not use with non-Gregorian dates because the resulting hCard hidden date will be false.
• The template will appear broken when the parameters are left blank.
• When only the year of a person's birth is known, or if it is desired not to state a person's full dates of birth for privacy reasons, consider using the templates Template:Tl or Template:Tl instead.

Examples

Unnamed parameters for year, month, day

{{Birth date and age|1993|2|24}} returns ""

{{Birth date and age|1993|2|24|df=yes}} returns ""

{{Birth date and age|1993|2|24|mf=yes}} returns ""

Named parameters for year, month, day

{{Birth date and age|year=1993|month=2|day=24}} returns ""

{{Birth date and age|year=1993|month=2|day=24|df=yes}} returns ""

{{Birth date and age|year=1993|month=2|day=24|mf=yes}} returns ""

Using month name instead of number

The following examples use a parameter value that will not work in the Template:Tlp, Template:Tlp, or Template:Tlp templates.

Unnamed parameters for year, month name, day

{{Birth date and age|1993|Feb|24}} returns ""

{{Birth date and age|1993|Feb|24|df=yes}} returns ""

{{Birth date and age|1993|Feb|24|mf=yes}} returns ""

Named parameters for year, month name, day

{{Birth date and age|year=1993|month=Feb|day=24}} returns ""

{{Birth date and age|year=1993|month=Feb|day=24|df=yes}} returns ""

{{Birth date and age|year=1993|month=Feb|day=24|mf=yes}} returns ""

Using full date in one parameter

The following examples use a parameter value that will not work in the Template:Tlp, Template:Tlp, or Template:Tlp templates.

The date format entered does not change the date format displayed, which is MDY by default or DMY if |df=y (to display the date in the same format it was entered, use Template:Tlp).

Unnamed parameter for full date (output in MDY format)

{{Birth date and age|1993-2-24}} returns ""

{{Birth date and age|Feb 24, 1993}} returns ""

{{Birth date and age|24 Feb 1993}} returns ""

Unnamed parameter for full date (output in DMY format)

{{Birth date and age|1993-2-24|df=y}} returns ""

{{Birth date and age|24 Feb 1993|df=y}} returns ""

{{Birth date and age|Feb 24, 1993|df=y}} returns ""

Output compared to Template:Tlp

{{Birth date and age|24 February 1993}} returns ""

{{Birth-date and age|24 February 1993}} returns "Template:Birth-date and age"

{{Birth date and age|Feb 24, 1993}} returns ""

{{Birth-date and age|Feb 24, 1993}} returns "Template:Birth-date and age"

{{Birth date and age|Feb. 24, 1993}} returns "" ("Feb" without a dot is required to avoid an error)

{{Birth-date and age|Feb. 24, 1993}} returns "Template:Birth-date and age"

TemplateData

This template will return a living person's date of birth and age. Using this template rather than simply inserting the date into articles allows for the inclusion of hidden metadata about the date. This metadata can be used by web browsers and other software tools to extract the details, and display them using some other website or mapping tool, index, or search them.

Template parameters

Parameter		Description	Type	Status
Year of birth	1 year	The year in which the person was born Example 1993	Number	required
Month of birth	2 month	The month (number) in which the person was born Example 2	Number	required
Day of birth	3 day	The day (number) in which the person was born Example 24	Number	required
Day first	df	When set to 'y' or 'yes', the date of birth is output in a DMY format Suggested values yes y Auto value yes	Line	optional
Month first	mf	When set to 'y' or 'yes', stresses that the default MDY date format is intended for the date of birth Suggested values yes y Auto value yes	Line	optional

Tracking categories

• Template:Category link with count
• Template:Category link with count
• Template:Category link with count

See also

• Template:Tl for year of birth, with optional parameter for month
• Template:Tl which accepts formats like "1 April 1990" or "April 1, 1990"
• Template:Tl or Template:Tl for a deceased person
• Template:Tl or Template:Tl
• Template:Tl for approximate year of birth, when exact date of birth is unsourced