--- EV/EV.pm	2018/08/30 21:52:02	1.150
+++ EV/EV.pm	2018/09/04 23:14:45	1.151
@@ -684,8 +684,9 @@
 =item * repeating interval timer ($interval > 0, $reschedule_cb = 0)
 
 In this mode the watcher will always be scheduled to time out at the
-next C<$at + N * $interval> time (for some integer N) and then repeat,
-regardless of any time jumps.
+next C<$at + N * $interval> time (for the lowest integer N) and then repeat,
+regardless of any time jumps. Note that, since C<N> can be negative, the
+first trigger can happen before C<$at>.
 
 This can be used to create timers that do not drift with respect to system
 time: