diff --git a/sbin/dhclient/dhclient.conf.5 b/sbin/dhclient/dhclient.conf.5
--- a/sbin/dhclient/dhclient.conf.5
+++ b/sbin/dhclient/dhclient.conf.5
@@ -79,7 +79,9 @@
 the server.
 .Pp
 The following statements can be used to adjust the timing behaviour of
-the DHCP client if required, however:
+the DHCP client if required. In each statement
+.Pa time
+is in seconds.
 .Bl -tag -width indent
 .It Ic timeout Ar time ;
 The