diff --git a/functions/datetime.xml b/functions/datetime.xml
index 35270cca76..f14639259d 100644
--- a/functions/datetime.xml
+++ b/functions/datetime.xml
@@ -757,7 +757,7 @@ echo strftime ("Last day in Feb 2000 is: %d", $lastday);
- %d - day of the month as a decimal number (range 00 to 31)
+ %d - day of the month as a decimal number (range 01 to 31)