Template:Start date and age/doc

This is a documentation subpage for Template:Start date and age.
It contains usage information, categories and other content that is not part of the original template page.

Usage

Syntax

Full syntax: {{Start date and age|yyyy|mm|dd|df=yes|br=yes}}

Common usage: {{Start date and age|yyyy|mm|dd}} to display result in March 4, 2010; 4 months ago format; {{Start date and age|yyyy|mm|dd|df=yes}} to display result in 4 March 2010; 4 months ago format

Description of parameters

Parameter	Description
yyyy	Four digits indicating the year. The year must always appear in a 4-digits form.
mm	A number between 1 to 12, indicating the month. Leading zeros in the number are ignored.
dd	A number between 1 to 31, indicating the day of the month. Leading zeros in the number are ignored.
df=	The optional parameter df can either be set to yes or anything other than yes. When set to yes, date will be displayed in DMY format: 4 March 2010. When set something other than yes or when this parameter is not included, date will be displayed in MD,Y format: March 4, 2010. As for choosing the right format to use, consult Manual of Style (dates and numbers): Full date formatting.
br=	The optional parameter br can either be set to yes or anything other than yes. When set to yes, a line break will be inserted between the date and the age. When set something other than yes or when this parameter is not included, a breaking space will be inserted between the date and the age. In either case, a semicolon separates the date and age, immediately before the line break or space.

Examples

Syntax	Result
Full date (year, month, day)
`{{Start date and age\|2010\|01\|02}}`	January 2, 2010; 14 years ago (2010-01-02)
`{{Start date and age\|2008\|08\|09}}`	August 9, 2008; 16 years ago (2008-08-09)
`{{Start date and age\|2003\|07\|05}}`	July 5, 2003; 21 years ago (2003-07-05)
`{{Start date and age\|2010\|1\|2\|df=yes}}`	2 January 2010; 14 years ago (2010-01-02)
`{{Start date and age\|2008\|8\|9\|df=yes}}`	9 August 2008; 16 years ago (2008-08-09)
`{{Start date and age\|2003\|7\|5\|df=yes}}`	5 July 2003; 21 years ago (2003-07-05)
`{{Start date and age\|2009\|9\|9\|br=yes}}`	September 9, 2009; 15 years ago (2009-09-09)
Today: `{{Start date and age\|2024\|11\|5}}`	November 5, 2024; 0 days ago (2024-11-05)
Yesterday: `{{Start date and age\|2024\|11\|4}}`	November 4, 2024; 1 day ago (2024-11-04)
Year and month
`{{Start date and age\|2002\|03}}`	March 2002; 22 years ago (2002-03)
`{{Start date and age\|2002\|04}}`	April 2002; 22 years ago (2002-04)
Year only
`{{Start date and age\|2002}}`	2002; 22 years ago (2002)

Use in microformats

This template also returns the date, hidden by CSS, in the ISO 8601 format needed by one or more of the following microformats:

hAtom (class="updated")
hAudio (class="published")
hCalendar (class="dtstart")
hCard (class="bday")

usually, but not always, within infobox or similar templates, or tables.

Its use in hCard is for organisations, venues and similar; use {{Birth date}} or {{Birth date and age}} for people.

Similarly, {{End date}} returns the date as hCalendar's (class="dtend").

See en:WP:UF for further details.

Limitation

This template has no provision to deal with a date in a non-Gregorian calendar. Also, ISO 8601 requires mutual agreement among those exchanging information before using years outside the range 1583–9999 CE. Therefore, use of this template for non-Gregorian dates or dates outside that range constitutes a false claim of conformance to the ISO 8601 standard.

Any editor encountering such usage should change the date to plain text with no template; or if not confident in doing so, raise the matter on this template's talk page.

Related pages

{{Time ago}} and {{Years or months ago}}
{{Start date and years ago}} and {{Age}}
{{Start date}} and {{End date}}
{{Start-date}} and {{End-date}}