diff --git a/README.md b/README.md
index 42a4091..ad6ed47 100644
--- a/README.md
+++ b/README.md
@@ -20,4 +20,7 @@ _Example:_ I want to check of my task that is 3rd on my list. When asked for it
 
 ## What value to insert when asked to select a subtask
 If you are asked to provide a subtask to complete an operation, you can select one by inserting the number of the subtask inside a task.
-_Example:_ I want to check off my subtask that is 1st inside the task. When asked for it I type '1'.
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+_Example:_ I want to check off my subtask that is 1st inside the task. When asked for it I type '1'.
+
+## Due date format
+When asked to insert a due date, you can insert it in any format. We can't limit the format, because it would be too restrictive.
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