diff --git a/docs/library/utime.rst b/docs/library/utime.rst
index a39f5ee73..7fe83f5ab 100644
--- a/docs/library/utime.rst
+++ b/docs/library/utime.rst
@@ -187,14 +187,14 @@ Functions
         # This code snippet is not optimized
         now = time.ticks_ms()
         scheduled_time = task.scheduled_time()
-        if ticks_diff(now, scheduled_time) > 0:
+        if ticks_diff(scheduled_time, now) > 0:
             print("Too early, let's nap")
-            sleep_ms(ticks_diff(now, scheduled_time))
+            sleep_ms(ticks_diff(scheduled_time, now))
             task.run()
-        elif ticks_diff(now, scheduled_time) == 0:
+        elif ticks_diff(scheduled_time, now) == 0:
             print("Right at time!")
             task.run()
-        elif ticks_diff(now, scheduled_time) < 0:
+        elif ticks_diff(scheduled_time, now) < 0:
             print("Oops, running late, tell task to run faster!")
             task.run(run_faster=true)