# Show the "Last Updated" Date on Posts

> Adds "Last updated on" with the modified date at the top of posts that were edited at least a day after publishing.

- Type: PHP
- Runs: Frontend only
- Category: [Content](https://wpide.com/library/category/content/)
- Tags: content, date, modified, seo
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/last-updated-date/

## Code

```php
add_filter( 'the_content', function ( $content ) {
    if ( ! is_singular( 'post' ) || ! in_the_loop() || ! is_main_query() ) {
        return $content;
    }

    if ( (int) get_the_modified_time( 'U' ) - (int) get_the_time( 'U' ) < DAY_IN_SECONDS ) {
        return $content;
    }

    return '<p class="last-updated"><em>Last updated on ' . esc_html( get_the_modified_date() ) . '</em></p>' . $content;
} );
```

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "Show the "Last Updated" Date on Posts" in its snippet library and add it in one click; or create a new PHP snippet in WPIDE (or any code snippets plugin) and paste the code above. More snippets: https://wpide.com/library/