diff --git a/README.md b/README.md
index 1aa0e28..46ab84f 100644
--- a/README.md
+++ b/README.md
@@ -258,6 +258,12 @@ To install, add this line to your application’s Gemfile:
 gem 'groupdate', github: 'ankane/groupdate', branch: 'sqlite'
 ```
 
+If your application’s time zone is set to something other than `Etc/UTC`, create an initializer with:
+
+```ruby
+Groupdate.time_zone = false
+```
+
 ## Upgrading
 
 ### 3.0
--
libgit2 0.21.0