diff --git a/docs/monitoring-usage.rst b/docs/monitoring-usage.rst
index 7c887b114f2fe..699409cd45ea0 100644
--- a/docs/monitoring-usage.rst
+++ b/docs/monitoring-usage.rst
@@ -250,7 +250,7 @@ single time series. For this, you must have :mod:`pandas` installed;
 it is not a required dependency of ``google-cloud-python``.
 
 You can display CPU utilization across your GCE instances during
-the last five minutes as follows::
+the last five minutes, ending at the time of your current minute, as follows::
 
     >>> METRIC = 'compute.googleapis.com/instance/cpu/utilization'
     >>> query = client.query(METRIC, minutes=5)