diff --git a/docs/advanced-usage.md b/docs/advanced-usage.md
index 690c78d..02ed499 100644
--- a/docs/advanced-usage.md
+++ b/docs/advanced-usage.md
@@ -78,6 +78,13 @@ The following options can be set for any particular page. While the default opti
   * `links` - An array of other URLs that represent the same thing that this page represents. For instance, Jane's bio page might include links to Jane's GitHub and Twitter profiles.
   * `date_modified` - Manually specify the `dateModified` field in the JSON-LD output to override Jekyll's own `dateModified`.
   This field will take **first priority** for the `dateModified` JSON-LD output. This is useful when the file timestamp does not match the true time that the content was modified. A user may also install [Last Modified At](https://github.com/gjtorikian/jekyll-last-modified-at) which will offer an alternative way of providing for the `dateModified` field.
+  
+For example, you can use:
+
+```yml
+seo:
+ date_modified: 2019-09-15 18:10:00 -03:00
+```
 
 ### Customizing image output