Date: 6 weeks, 4 days, 1 hour, 3 minutes, 8 seconds ago
@end example
-This line is updated continually by default. If you wish to switch
-that off, say:
+This line is updated continually by default. The frequency (in
+seconds) is controlled by the @code{gnus-article-update-date-headers}
+variable.
+
+If you wish to switch updating off, say:
@vindex gnus-article-update-date-headers
@lisp