diff --git a/docs/reference-config-file.md b/docs/reference-config-file.md
index e28b7b04..4226402e 100644
--- a/docs/reference-config-file.md
+++ b/docs/reference-config-file.md
@@ -20,7 +20,7 @@ You can also find your configuration file location by running:
 
 ## Format
 The configuration file is a [YAML](https://yaml.org/) file and can be edited with
-a plain text editor.
+a text editor.
 
 ## Configuration Keys
 
@@ -83,6 +83,9 @@ to data loss.
 If you would just like to change how `jrnl` displays dates,
 use display_format instead.
 
+!!! note
+    `jrnl` doesn't support the `%z` or `%Z` time zone identifiers.
+
 ### highlight
 If `true`, tags will be highlighted in cyan.