diff --git a/docs/apache-airflow/concepts/tasks.rst b/docs/apache-airflow/concepts/tasks.rst
index 63fbe818e0167..c3f9d1de3b50c 100644
--- a/docs/apache-airflow/concepts/tasks.rst
+++ b/docs/apache-airflow/concepts/tasks.rst
@@ -158,7 +158,7 @@ If you merely want to be notified if a task runs over but still let it run to co
 SLAs
 ----
 
-An SLA, or a Service Level Agreement, is an expectation for the maximum time a Task should take. If a task takes longer than this to run, it is then visible in the "SLA Misses" part of the user interface, as well as going out in an email of all tasks that missed their SLA.
+An SLA, or a Service Level Agreement, is an expectation for the maximum time a Task should be completed relative to the Dag Run start time. If a task takes longer than this to run, it is then visible in the "SLA Misses" part of the user interface, as well as going out in an email of all tasks that missed their SLA.
 
 Tasks over their SLA are not cancelled, though - they are allowed to run to completion. If you want to cancel a task after a certain runtime is reached, you want :ref:`concepts:timeouts` instead.