---
title: "Post: Modified Date"
categories:
  - Post Formats
tags:
  - Post Formats
  - readability
  - standard
last_modified_at: 2017-03-09T13:01:27-05:00
---

This post has been updated and should show a modified date if `last_modified_at` is used in the layout.

Plugins like [**jekyll-sitemap**](https://github.com/jekyll/jekyll-feed) use this field to add a `<lastmod>` tag your `sitemap.xml`.