diff --git a/java/google/registry/batch/ExpandRecurringBillingEventsAction.java b/java/google/registry/batch/ExpandRecurringBillingEventsAction.java
index fc925974f..b3ce51257 100644
--- a/java/google/registry/batch/ExpandRecurringBillingEventsAction.java
+++ b/java/google/registry/batch/ExpandRecurringBillingEventsAction.java
@@ -67,7 +67,6 @@ import java.util.Set;
 import javax.inject.Inject;
 import org.joda.money.Money;
 import org.joda.time.DateTime;
-import org.joda.time.DateTimeZone;
 
 /**
  * A mapreduce that expands {@link Recurring} billing events into synthetic {@link OneTime} events.
@@ -192,7 +191,7 @@ public class ExpandRecurringBillingEventsAction implements Runnable {
               HistoryEntry historyEntry = new HistoryEntry.Builder()
                   .setBySuperuser(false)
                   .setClientId(recurring.getClientId())
-                  .setModificationTime(DateTime.now(DateTimeZone.UTC))
+                  .setModificationTime(ofy().getTransactionTime())
                   .setParent(domainKey)
                   .setPeriod(Period.create(1, YEARS))
                   .setReason("Domain autorenewal by ExpandRecurringBillingEventsAction")
diff --git a/java/google/registry/model/reporting/HistoryEntry.java b/java/google/registry/model/reporting/HistoryEntry.java
index 2301dcc2b..2ee7a998f 100644
--- a/java/google/registry/model/reporting/HistoryEntry.java
+++ b/java/google/registry/model/reporting/HistoryEntry.java
@@ -104,7 +104,7 @@ public class HistoryEntry extends ImmutableObject implements Buildable {
   /** The actual EPP xml of the command, stored as bytes to be agnostic of encoding. */
   byte[] xmlBytes;
 
-  /** The time the command occurred. */
+  /** The time the command occurred, represented by the ofy transaction time.*/
   @Index
   DateTime modificationTime;
 
diff --git a/java/google/registry/rde/imports/XjcToHostResourceConverter.java b/java/google/registry/rde/imports/XjcToHostResourceConverter.java
index 9a53c8353..aa85f3323 100644
--- a/java/google/registry/rde/imports/XjcToHostResourceConverter.java
+++ b/java/google/registry/rde/imports/XjcToHostResourceConverter.java
@@ -19,7 +19,6 @@ import static com.google.common.base.Predicates.not;
 import static google.registry.model.ofy.ObjectifyService.ofy;
 import static google.registry.rde.imports.RdeImportUtils.generateTridForImport;
 import static google.registry.util.DomainNameUtils.canonicalizeDomainName;
-import static org.joda.time.DateTimeZone.UTC;
 
 import com.google.common.base.Function;
 import com.google.common.collect.FluentIterable;
@@ -35,7 +34,6 @@ import google.registry.xjc.host.XjcHostStatusType;
 import google.registry.xjc.rdehost.XjcRdeHost;
 import google.registry.xjc.rdehost.XjcRdeHostElement;
 import java.net.InetAddress;
-import org.joda.time.DateTime;
 
 /** Utility class that converts an {@link XjcRdeHost} into a {@link HostResource}. */
 public class XjcToHostResourceConverter extends XjcToEppResourceConverter {
@@ -66,7 +64,7 @@ public class XjcToHostResourceConverter extends XjcToEppResourceConverter {
             .setType(HistoryEntry.Type.RDE_IMPORT)
             .setClientId(host.getClID())
             .setTrid(generateTridForImport())
-            .setModificationTime(DateTime.now(UTC))
+            .setModificationTime(ofy().getTransactionTime())
             .setXmlBytes(getObjectXml(new XjcRdeHostElement(host)))
             .setBySuperuser(true)
             .setReason("RDE Import")