diff --git a/source/_docs/scripts/conditions.markdown b/source/_docs/scripts/conditions.markdown
index 561b59a4eb1..e0fcdde6c3d 100644
--- a/source/_docs/scripts/conditions.markdown
+++ b/source/_docs/scripts/conditions.markdown
@@ -235,7 +235,9 @@ condition:
 ```
 
 Valid values for `weekday` are `mon`, `tue`, `wed`, `thu`, `fri`, `sat`, `sun`.
-Time condition windows can span across the midnight threshold. In the example above, the condition window is from 3pm to 2am.
+Note that if only `before` key is used, the condition will be `true` *from midnight* until the specified time.
+If only `after` key is used, the condition will be `true` from the specified time *until midnight*.
+Time condition windows can span across the midnight threshold if **both** `after` and `before` keys are used. In the example above, the condition window is from 3pm to 2am.
 
 <div class='note tip'>