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2026-05-19T02:41:39Z

Created page with "{{Category TOC}} This category contains templates that perform '''date-related calculations''' – such as computing a person's current age, formatting dates, or comparing dat..."

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{{Category TOC}}
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., <code><nowiki>{{#expr}}</nowiki></code>, <code><nowiki>{{#ifexpr}}</nowiki></code>) 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 ==
* {{tl|Birth date and age}} – displays a birth date with automatically calculated current age
* {{tl|Death date and age}} – displays a death date with age at death
* {{tl|Birth date}} – displays only the birth date (no age)
* {{tl|Age}} – calculates age from a given birth date
* {{tl|Age in years, months, weeks and days}} – detailed age breakdown
* {{tl|Years ago}} – years since a specified year
* {{tl|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 <code><noinclude></code> tags or on the template's <code>/doc</code> subpage):
<pre><nowiki><noinclude>[[Category:Date mathematics templates]]</noinclude></nowiki></pre>

Or if using a <code>/doc</code> subpage, place inside <code><includeonly></code> on that subpage:
<pre><includeonly>[[Category:Date mathematics templates]]</includeonly></pre>

== See also ==
* [[:Category:Date formatting templates]]
* [[:Category:Time and date templates]]

{{Commons category|Date mathematics templates}}

Category:Date mathematics templates - Revision history

Buddydml: Created page with "{{Category TOC}} This category contains templates that perform '''date-related calculations''' – such as computing a person's current age, formatting dates, or comparing dat..."