Template:Birth-date/doc

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.

For an article about a living person, consider using instead.

Usage

 * Unnamed parameters for year, month, day


 * Named parameters for year, month, day

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. y or yes.

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.

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

Note: For the "foundation", "built" and similar set-up dates of companies, buildings etc., use start date (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.

Examples
Unnamed parameters for year, month, day:

Named parameters for year, month, day:

TemplateData
{	"description": "This template will return a person's date of birth. 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.", "params": { "1": {			"label": "Year of birth", "description": "The year in which the person was born.", "type": "number", "example": "1993", "required": true, "aliases": [ "year" ]		},		"2": {			"label": "Month of birth", "description": "The month (number) in which the person was born.", "type": "number", "example": "2", "required": true, "aliases": [ "month" ]		},		"3": {			"label": "Day of birth", "description": "The day (number) in which the person was born.", "type": "number", "example": "24", "required": true, "aliases": [ "day" ]		},		"df": { "label": "Day first", "description": "When set to 'y' or 'yes', the date of birth is output in a DMY format.", "type": "string", "example": "y", "required": false },		"mf": { "label": "Month first", "description": "When set to 'y' or 'yes', stresses that the default MDY date format is intended for the date of birth.", "type": "string", "example": "y", "required": false }	} }