Correctly specify time format.

doc/config.sample.yaml

@@ -8,5 +8,5 @@ modules:
     on-click: xdg-open https://mastodon.ie/
   - module: date
     params:
-      format: 06-05-04 15:02
+      format: 06-01-02 15:04
     on-click: xdg-open https://calendar.google.com/