diff --git a/config.def.h b/config.def.h
index 33c371b7ddc8..93e8141ddb76 100644
--- a/config.def.h
+++ b/config.def.h
@@ -1770,7 +1770,7 @@
 #else
 #define DEFAULT_MENU_TIMEDATE_ENABLE true
 #endif
-#define DEFAULT_MENU_TIMEDATE_STYLE          MENU_TIMEDATE_STYLE_DDMM_HM
+#define DEFAULT_MENU_TIMEDATE_STYLE          MENU_TIMEDATE_STYLE_YMD_HM
 #define DEFAULT_MENU_TIMEDATE_DATE_SEPARATOR MENU_TIMEDATE_DATE_SEPARATOR_HYPHEN
 #define DEFAULT_MENU_REMEMBER_SELECTION      MENU_REMEMBER_SELECTION_ALWAYS
 #define DEFAULT_MENU_STARTUP_PAGE            MENU_STARTUP_PAGE_MAIN_MENU