Template:Birth date and age/doc: Difference between revisions

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    ''Italic
    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.
    |{{high-use|84,000+}}
    }}</includeonly>
    <!-- PLEASE ADD CATEGORIES AND INTERWIKIS AT THE BOTTOM OF THIS PAGE -->


    These templates ('''{{tl|Birth date}}''' and '''{{tl|Birth date and age}}''') return a person’s date of birth and optionally his/her age. These have the shortcuts '''{{tl|dob}}''' and '''{{tl|bda}}''' respectively.
    This template is intended for use in an article about a living person. For an article about a dead person, use {{tl|Birth date}} with {{tl|Death date and age}}.


    <big style="color:#CC0000;">Do NOT use this template when the person’s exact date of birth is disputed or unknown.</big>
    {{notice|text='''Is the displayed age incorrect?'''<br>The age displayed was calculated when the page was last purged. If a particular article is showing the wrong age, edit the whole page and publish the edit without making any change and with no edit summary. That will update the age. The page can also be purged by appending <code>&action=purge</code> to the URL.}}


    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.
    == Usage ==
    ; Unnamed parameters for year, month, day
    : <code><nowiki>{{</nowiki>Birth date and age|''year of birth''|''month of birth''|''day of birth''|''additional parameters''<nowiki>}}</nowiki></code>
    : <code><nowiki>{{</nowiki>bda|''year of birth''|''month of birth''|''day of birth''|''additional parameters''<nowiki>}}</nowiki></code>


    ===Syntax===
    ; Named parameters for year, month, day
    ==== To display the birth date only ====
    : <code><nowiki>{{</nowiki>Birth date and age|year=''year of birth''|month=''month of birth''|day=''day of birth''|''additional parameters''<nowiki>}}</nowiki></code>
    :<nowiki>{{Birth date|year of birth|month of birth|day of birth|additional parameters}}</nowiki> '''Do not use with non-Gregorian dates''' because the resulting hCard hidden date will be false.
    : <code><nowiki>{{</nowiki>bda|year=''year of birth''|month=''month of birth''|day=''day of birth''|''additional parameters''<nowiki>}}</nowiki></code>


    ===={{tl|dob}} is a redirect to {{tl|Birth date}}====
    === Additional parameters ===
    :<code><nowiki>{{dob|year of birth|month of birth|day of birth|additional parameters}}</nowiki></code>
     
    ====To display a birth date with calculated age====
    :<code><nowiki>{{Birth date and age|year of birth|month of birth|day of birth|additional parameters}}</nowiki></code>
     
    '''This form is only intended for living persons.''' In the rare case that a living person's birth date is given in a non-Gregorian calendar this template should not be used. The parameter names 'year', 'month', and 'day' can be used instead of the first, second, and third parameters for 'Birth date and age' only. These parameter names are not available for the 'Birth date' template.
     
    ===={{tl|Bda}} is a redirect to {{tl|Birth date and age}}====
    :<code><nowiki>{{Bda|year of birth|month of birth|day of birth|additional parameters}}</nowiki></code>
     
    Examples:
     
    :<code><nowiki>{{Birth date|1993|02|04|df=yes}}</nowiki></code> returns "{{Birth date|1993|02|04|df=yes}}"
    :<code><nowiki>{{Birth date|1993|02|04|mf=yes}}</nowiki></code> returns "{{Birth date|1993|02|04|mf=yes}}"
    :<code><nowiki>{{Birth date|1993|02|24|df=yes}}</nowiki></code> returns "{{Birth date|1993|02|24|df=yes}}"
    :<code><nowiki>{{Birth date|1993|02|24|mf=yes}}</nowiki></code> returns "{{Birth date|1993|02|24|mf=yes}}"
     
    :<code><nowiki>{{Birth date and age|1993|02|04|mf=yes}}</nowiki></code> returns {{Birth date and age|1993|02|04|mf=yes}}
    :<code><nowiki>{{Birth date and age|1993|02|04|df=yes}}</nowiki></code> returns {{Birth date and age|1993|02|04|df=yes}}
    :<code><nowiki>{{Birth date and age|1993|02|24|mf=yes}}</nowiki></code> returns {{Birth date and age|1993|02|24|mf=yes}}
    :<code><nowiki>{{Birth date and age|1993|02|24|df=yes}}</nowiki></code> returns {{Birth date and age|1993|02|24|df=yes}}
     
    ===Month First (mf) and Day First (df) options===
    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 '''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 day before the month. This default may not be appropriate for articles about people from parts of the world where the month precedes the day in a date. In such articles the parameter, "mf", should be set to display the day before the month.
    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 "df", while not actually used by the template, will indicate that day first format is intended. Using these parameters can assist [[WP:BOT|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.
    The parameter "mf", while not actually used by the template, will indicate that month first format is intended. Using these parameters can assist [[WP:BOT|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.
    Do not specify both "df" and "mf" parameters in the same use of the template, as these formats are mutually exclusive.


    Examples:
    === Error tracking ===
     
    Some kinds of invalid input are tracked in [[:Category:Pages using age template with invalid date]].
    :<code><nowiki>{{Birth date|1993|02|24|df=yes}}</nowiki></code> displays "{{Birth date|1993|02|24|df=yes}}".
     
    :<code><nowiki>{{Birth date and age|1993|02|24|df=yes}}</nowiki></code> displays "{{Birth date and age|1993|02|24|df=yes}}".
     
    :<code><nowiki>{{Birth date|1993|02|24|mf=yes}}</nowiki></code> displays "{{Birth date|1993|02|24|mf=yes}}".
     
    :<code><nowiki>{{Birth date and age|1993|02|24|mf=yes}}</nowiki></code> displays "{{Birth date and age|1993|02|24|mf=yes}}".
     
    ===hCard microformat===
    The templates also returns the date, hidden by CSS, in the [[WP:ISO 8601|ISO 8601]] ''format'' (but not necessarily to the ISO 8601 ''standard'') needed by [[HCard|hCard microformat]]s. for example:
     
    :<code><nowiki>(<span class="bday">1993-02-24</span>)</nowiki></code>
     
    Note: for the "foundation", "built" and similar set-up dates of companies, buildings, etc., use {{tl|Start date}} (this will work for year-only or month-year dates).
     
    See [[Wikipedia:WikiProject Microformats|the microformats project]] for details.
     
    ===Notes===
    When only the year of a person's birth and/or death are known, or if it is desired not to state a person's full dates of birth and death for privacy reasons, use the templates {{tl|Birth year and age}} and {{tl|Death year and age}} instead.
     
    '''Note:''' The template will appear broken when the parameters are left blank (as seen above).
     
    '''Note:''' Do not use this template inside of the [[WP:Persondata|Persondata]] template, as it can interfere with data extraction.


    ===See also===
    === Notes ===
    *[[Wikipedia:Age calculation templates]]
    * '''Do not use with non-Gregorian dates''' because the resulting hCard hidden date will be false.
    *{{tl|BirthDeathAge}} &ndash; carries out the functions of this template and all the following ones
    * The template will appear broken when the parameters are left blank.
    *{{tl|Birth date and age}} &ndash; same as {{tl|Birth date}}, except that "(age ##)" appears after the birth date
    * When only the month or year of a person's birth and/or death are known, or if it is desired not to state a person's full dates of birth for privacy reasons, consider using the templates {{tl|Birth year}} or {{tl|Birth year and age}} instead.
    *{{tl|Birth date and age2}} &ndash; Displays an individual's birth date, plus his or her age '''''as of a specified date'''''. In this template, "(aged ##)" appears after the birth date.
    *{{tl|Birth year and age}} &ndash; year of birth and approximate age
    *{{tl|Birth based on age as of date}} &ndash; used when a dated reference mentions the age of a person as of the date of publication
    *{{tl|Death date and age}} &ndash; same as {{tl|Death date}}, except that "(aged ##)" appears after the death date
    *{{tl|Death year and age}} &ndash; year of death and approximate age at death
    *{{tl|Death date}} &ndash; displays the date and related hidden metadata
    *{{tl|Age}} &ndash; returns the number of full years between two specified dates
    *{{tl|Age in years and days}} &ndash; returns full years and days between two dates


    <includeonly>
    == Examples ==
    <!-- CATEGORIES AND INTERWIKIS HERE, THANKS -->
    ; Unnamed parameters for year, month, day
    {{#switch:{{BASEPAGENAME}}|Birth date|Death date=
    : <code><nowiki>{{Birth date and age|1993|2|24}}</nowiki></code> returns "{{Birth date and age|1993|2|24}}"
    [[Category:Templates generating microformat dates|{{BASEPAGENAME}}]]|
    : <code><nowiki>{{Birth date and age|1993|2|24|df=yes}}</nowiki></code> returns "{{Birth date and age|1993|2|24|df=yes}}"
    [[Category:Templates generating microformat date and age|{{BASEPAGENAME}}]]}}
    : <code><nowiki>{{Birth date and age|1993|2|24|mf=yes}}</nowiki></code> returns "{{Birth date and age|1993|2|24|mf=yes}}"
    [[Category:Date mathematics templates|{{PAGENAME}}]]


    [[ar:قالب:تاريخ الميلاد والعمر]]
    ; Named parameters for year, month, day
    [[bg:Шаблон:Дата на раждане и години]]
    : <code><nowiki>{{Birth date and age|year=1993|month=2|day=24}}</nowiki></code> returns "{{Birth date and age|year=1993|month=2|day=24}}"
    [was born on 1993 of june
    : <code><nowiki>{{Birth date and age|year=1993|month=2|day=24|df=yes}}</nowiki></code> returns "{{Birth date and age|year=1993|month=2|day=24|df=yes}}"
    : <code><nowiki>{{Birth date and age|year=1993|month=2|day=24|mf=yes}}</nowiki></code> returns "{{Birth date and age|year=1993|month=2|day=24|mf=yes}}"

    Latest revision as of 11:56, 21 May 2021

    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.

    This template is intended for use in an article about a living person. For an article about a dead person, use {{Birth date}} with {{Death date and age}}.

    VisualEditor - Icon - Advanced - white.svg Is the displayed age incorrect?
    The age displayed was calculated when the page was last purged. If a particular article is showing the wrong age, edit the whole page and publish the edit without making any change and with no edit summary. That will update the age. The page can also be purged by appending &action=purge to the URL.

    Usage[edit source]

    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[edit source]

    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[edit source]

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

    Notes[edit source]

    • 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 month or year of a person's birth and/or death are known, or if it is desired not to state a person's full dates of birth for privacy reasons, consider using the templates {{Birth year}} or {{Birth year and age}} instead.

    Examples[edit source]

    Unnamed parameters for year, month, day
    {{Birth date and age|1993|2|24}} returns " (1993-02-24) February 24, 1993 (age 31)"
    {{Birth date and age|1993|2|24|df=yes}} returns " (1993-02-24) 24 February 1993 (age 31)"
    {{Birth date and age|1993|2|24|mf=yes}} returns " (1993-02-24) February 24, 1993 (age 31)"
    Named parameters for year, month, day
    {{Birth date and age|year=1993|month=2|day=24}} returns " (1993-02-24) February 24, 1993 (age 31)"
    {{Birth date and age|year=1993|month=2|day=24|df=yes}} returns " (1993-02-24) 24 February 1993 (age 31)"
    {{Birth date and age|year=1993|month=2|day=24|mf=yes}} returns " (1993-02-24) February 24, 1993 (age 31)"