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

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    {{Documentation subpage}}
    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.
    <includeonly>{{high-use}}</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
     
    : <code><nowiki>{{</nowiki>Birth date and age|year=''year of birth''|month=''month of birth''|day=''day of birth''|''additional parameters''<nowiki>}}</nowiki></code>
    ==== To display the birth date only ====
    : <code><nowiki>{{</nowiki>bda|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.
     
    ==== {{tl|dob}} is a redirect to {{tl|Birth date}} ====
     
    :<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 ===


    === 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 '''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'''.


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    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 [[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 [[WP:UF|the microformats project]] for details.


    === Notes ===
    === 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 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.


    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.
    == Examples ==
     
    ; Unnamed parameters for year, month, day
    '''Note:''' The template will appear broken when the parameters are left blank (as seen above).
    : <code><nowiki>{{Birth date and age|1993|2|24}}</nowiki></code> returns "{{Birth date and age|1993|2|24}}"
     
    : <code><nowiki>{{Birth date and age|1993|2|24|df=yes}}</nowiki></code> returns "{{Birth date and age|1993|2|24|df=yes}}"
    '''Note:''' Do not use this template inside of the [[WP:PERSONDATA|Persondata]] template as it can interfere with data extraction.
    : <code><nowiki>{{Birth date and age|1993|2|24|mf=yes}}</nowiki></code> returns "{{Birth date and age|1993|2|24|mf=yes}}"
     
    === See also ===
     
    *[[Wikipedia:Age calculation templates]]
    *{{tl|BirthDeathAge}} &ndash; carries out the functions of this template and all the following ones
    *{{tl|Birth date and age}} &ndash; same as {{tl|Birth date}}, except that "(age ##)" appears after the birth date
    *{{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
    *{{t1|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
     
    <includeonly>
    <!-- CATEGORIES AND INTERWIKIS HERE, THANKS -->
    {{#switch:{{BASEPAGENAME}}|Birth date|Death date=
    [[Category:Templates generating microformat dates|{{BASEPAGENAME}}]]|
    [[Category:Templates generating microformat date and age|{{BASEPAGENAME}}]]}}
     
    [[Category:Date mathematics templates|{{PAGENAME}}]]
     
    [[bg:Шаблон:Дата на раждане и години]]
    [[ca:Plantilla:Data naixement i edat]]
    [[cs:Šablona:Datum narození a věk]]
    [[cy:Nodyn:Dyddiad geni ac oedran]]
    [[da:Skabelon:Dato og alder]]
    [[dsb:Pśedłoga:Narodniny a starstwo]]
    [[el:Πρότυπο:Ημερομηνία γέννησης και ηλικία]]
    [[eo:Ŝablono:Naskiĝtago kaj aĝo]]
    [[fa:الگو:تاریخ تولد و سن]]
    [[fr:Modèle:Date de naissance et âge]]
    [[he:תבנית:תאריך לידה]]
    [[hsb:Předłoha:Narodniny a staroba]]
    [[ko:틀:출생일과 만나이]]
    [[mk:Шаблон:Роден на и возраст]]
    [[id:Templat:Tanggal lahir dan umur]]
    [[ja:Template:生年月日と年齢]]
    [[lv:Veidne:Dzimšanas datums un vecums]]
    [[no:Mal:Fødselsdato og alder]]
    [[os:Шаблон:Райгуырд]]
    [[pt:Predefinição:Dni]]
    [[ro:Format:Birth date and age]]
    [[ru:Шаблон:Родился]]
    [[fi:Malline:Syntymäaika ja ikä]]
    [[uk:Шаблон:Дата з віком]]
    [[vi:Tiêu bản:Ngày sinh và tuổi]]
    [[zh:Template:Birth date and age]]


    </includeonly>
    ; Named parameters for year, month, day
    : <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}}"
    : <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)"