diff --git a/java/google/registry/env/alpha/default/WEB-INF/cron.xml b/java/google/registry/env/alpha/default/WEB-INF/cron.xml
index 6acb5a4f8..824faa78c 100644
--- a/java/google/registry/env/alpha/default/WEB-INF/cron.xml
+++ b/java/google/registry/env/alpha/default/WEB-INF/cron.xml
@@ -50,7 +50,7 @@
       This job downloads the latest DNL from MarksDB and inserts it into the database.
       (See: TmchDnlServlet, ClaimsList)
     </description>
-    <schedule>every 12 hours synchronized</schedule>
+    <schedule>every 12 hours from 00:15 to 12:15</schedule>
     <target>backend</target>
   </cron>
 
diff --git a/java/google/registry/env/crash/default/WEB-INF/cron.xml b/java/google/registry/env/crash/default/WEB-INF/cron.xml
index 23887f73a..5c0626d63 100644
--- a/java/google/registry/env/crash/default/WEB-INF/cron.xml
+++ b/java/google/registry/env/crash/default/WEB-INF/cron.xml
@@ -60,7 +60,7 @@
       This job downloads the latest SMDRL from MarksDB and inserts it into the database.
       (See: TmchSmdrlServlet, SignedMarkRevocationList)
     </description>
-    <schedule>every 12 hours synchronized</schedule>
+    <schedule>every 12 hours from 00:15 to 12:15</schedule>
     <target>backend</target>
   </cron>
 
diff --git a/java/google/registry/env/production/default/WEB-INF/cron.xml b/java/google/registry/env/production/default/WEB-INF/cron.xml
index 7dff036fd..c186eef22 100644
--- a/java/google/registry/env/production/default/WEB-INF/cron.xml
+++ b/java/google/registry/env/production/default/WEB-INF/cron.xml
@@ -72,7 +72,7 @@
       This job downloads the latest SMDRL from MarksDB and inserts it into the database.
       (See: TmchSmdrlServlet, SignedMarkRevocationList)
     </description>
-    <schedule>every 12 hours synchronized</schedule>
+    <schedule>every 12 hours from 00:15 to 12:15</schedule>
     <target>backend</target>
   </cron>
 
diff --git a/java/google/registry/env/sandbox/default/WEB-INF/cron.xml b/java/google/registry/env/sandbox/default/WEB-INF/cron.xml
index e0a87d532..f52d2c73e 100644
--- a/java/google/registry/env/sandbox/default/WEB-INF/cron.xml
+++ b/java/google/registry/env/sandbox/default/WEB-INF/cron.xml
@@ -17,7 +17,7 @@
       This job downloads the latest SMDRL from MarksDB and inserts it into the database.
       (See: TmchSmdrlServlet, SignedMarkRevocationList)
     </description>
-    <schedule>every 12 hours synchronized</schedule>
+    <schedule>every 12 hours from 00:15 to 12:15</schedule>
     <target>backend</target>
   </cron>