Category:Date mathematics templates

This category contains templates that perform date-related calculations – such as computing a person's current age, formatting dates, or comparing dates. These templates typically use MediaWiki's ParserFunctions (e.g., {{#expr}}, {{#ifexpr}}) to produce dynamic, up‑to‑date output.

Purpose

Date mathematics templates are essential for biography infoboxes, event listings, and any page where a date needs to be displayed alongside a calculated time difference (e.g., age, days until an event). They reduce manual updates and ensure consistency.

Templates in this category

• </code>

 | {{Birth date and age}}

}} – displays a birth date with automatically calculated current age

• </code>

 | {{Death date and age}}

}} – displays a death date with age at death

• </code>

 | {{Birth date}}

}} – displays only the birth date (no age)

• </code>

 | {{Age}}

}} – calculates age from a given birth date

• </code>

 | {{Age in years, months, weeks and days}}

}} – detailed age breakdown

• </code>

 | {{Years ago}}

}} – years since a specified year

• </code>

 | {{Days until}}

}} – days remaining until a future date

How to add a template to this category

Add the following at the bottom of the template code (inside tags or on the template's /doc subpage):

<noinclude>[[Category:Date mathematics templates]]</noinclude>

Or if using a /doc subpage, place inside </pre>

Template:Commons category