diff --git a/locales/en.json b/locales/en.json
index 5bb408f1d..49c7eb09c 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -150,7 +150,7 @@
     "config_validate_color": "Should be a valid RGB hexadecimal color",
     "config_validate_date": "Should be a valid date like in the format YYYY-MM-DD",
     "config_validate_email": "Should be a valid email",
-    "config_validate_time": "Should be a valid time like XX:YY",
+    "config_validate_time": "Should be a valid time like HH:MM",
     "config_validate_url": "Should be a valid web URL",
     "config_version_not_supported": "Config panel versions '{version}' are not supported.",
     "confirm_app_install_danger": "DANGER! This app is known to be still experimental (if not explicitly not working)! You should probably NOT install it unless you know what you are doing. NO SUPPORT will be provided if this app doesn't work or breaks your system... If you are willing to take that risk anyway, type '{answers}'",