diff --git a/src/main/java/io/ebean/ExtendedServer.java b/src/main/java/io/ebean/ExtendedServer.java
index 1d3d6264f..0b159f877 100644
--- a/src/main/java/io/ebean/ExtendedServer.java
+++ b/src/main/java/io/ebean/ExtendedServer.java
@@ -3,6 +3,7 @@ package io.ebean;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import javax.persistence.NonUniqueResultException;
+import java.time.Clock;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
@@ -28,6 +29,19 @@ import java.util.function.Predicate;
  */
 public interface ExtendedServer {
 
+  /**
+   * Return the NOW time from the Clock.
+   */
+  long clockNow();
+
+  /**
+   * Set the Clock to use for <code>@WhenCreated</code> and <code>@WhenModified</code>.
+   * <p>
+   * Note that we only expect to change the Clock for testing purposes.
+   * </p>
+   */
+  void setClock(Clock clock);
+
   /**
    * Return the number of 'top level' or 'root' entities this query should return.
    *
@@ -370,7 +384,7 @@ public interface ExtendedServer {
   /**
    * Execute the update query returning the number of rows updated.
    * <p>
-   * The update query must be created using {@link #update(Class)}.
+   * The update query must be created using {@link EbeanServer#update(Class)}.
    * </p>
    *
    * @param query       the update query to execute
diff --git a/src/main/java/io/ebean/config/ServerConfig.java b/src/main/java/io/ebean/config/ServerConfig.java
index bfb0b3999..0d0bbd70e 100644
--- a/src/main/java/io/ebean/config/ServerConfig.java
+++ b/src/main/java/io/ebean/config/ServerConfig.java
@@ -33,6 +33,7 @@ import io.ebean.util.StringHelper;
 import org.avaje.datasource.DataSourceConfig;
 
 import javax.sql.DataSource;
+import java.time.Clock;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -362,6 +363,11 @@ public class ServerConfig {
    */
   private String uuidStateFile = "ebean-uuid.state";
 
+  /**
+   * The clock used for setting the timestamps (e.g. @UpdatedTimestamp) on objects.
+   */
+  private Clock clock = Clock.systemUTC();
+
   private List<IdGenerator> idGenerators = new ArrayList<>();
   private List<BeanFindController> findControllers = new ArrayList<>();
   private List<BeanPersistController> persistControllers = new ArrayList<>();
@@ -507,6 +513,20 @@ public class ServerConfig {
 
   }
 
+  /**
+   * Get the clock used for setting the timestamps (e.g. @UpdatedTimestamp) on objects.
+   */
+  public Clock getClock() {
+    return clock;
+  }
+
+  /**
+   * Set the clock used for setting the timestamps (e.g. @UpdatedTimestamp) on objects.
+   */
+  public void setClock(final Clock clock) {
+    this.clock = clock;
+  }
+
   /**
    * Return the slow query time in millis.
    */
diff --git a/src/main/java/io/ebeaninternal/server/core/DefaultServer.java b/src/main/java/io/ebeaninternal/server/core/DefaultServer.java
index 307cc3d44..89fe28b6b 100644
--- a/src/main/java/io/ebeaninternal/server/core/DefaultServer.java
+++ b/src/main/java/io/ebeaninternal/server/core/DefaultServer.java
@@ -119,10 +119,10 @@ import javax.persistence.NonUniqueResultException;
 import javax.persistence.OptimisticLockException;
 import javax.persistence.PersistenceException;
 import javax.sql.DataSource;
+import java.time.Clock;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
-import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
@@ -151,6 +151,11 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
 
   private final DataTimeZone dataTimeZone;
 
+  /**
+   * Clock to use for WhenModified and WhenCreated.
+   */
+  private Clock clock;
+
   private final CallStackFactory callStackFactory;
 
   /**
@@ -278,6 +283,7 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
     this.beanLoader = new DefaultBeanLoader(this);
     this.jsonContext = config.createJsonContext(this);
     this.dataTimeZone = config.getDataTimeZone();
+    this.clock = config.getServerConfig().getClock();
 
     DocStoreIntegration docStoreComponents = config.createDocStoreIntegration(this);
     this.transactionManager = config.createTransactionManager(docStoreComponents.updateProcessor());
@@ -507,6 +513,16 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
     return this;
   }
 
+  @Override
+  public long clockNow() {
+    return clock.millis();
+  }
+
+  @Override
+  public void setClock(Clock clock) {
+    this.clock = clock;
+  }
+
   @Override
   public BeanState getBeanState(Object bean) {
     if (bean instanceof EntityBean) {
diff --git a/src/main/java/io/ebeaninternal/server/core/PersistRequestBean.java b/src/main/java/io/ebeaninternal/server/core/PersistRequestBean.java
index 20c6e04b7..3c658f34d 100644
--- a/src/main/java/io/ebeaninternal/server/core/PersistRequestBean.java
+++ b/src/main/java/io/ebeaninternal/server/core/PersistRequestBean.java
@@ -1275,7 +1275,7 @@ public final class PersistRequestBean<T> extends PersistRequest implements BeanP
    */
   public long now() {
     if (now == 0) {
-      now = System.currentTimeMillis();
+      now = ebeanServer.clockNow();
     }
     return now;
   }
diff --git a/src/test/java/io/ebean/ExtendedServerTest.java b/src/test/java/io/ebean/ExtendedServerTest.java
index aef467e69..5f756e9ad 100644
--- a/src/test/java/io/ebean/ExtendedServerTest.java
+++ b/src/test/java/io/ebean/ExtendedServerTest.java
@@ -1,15 +1,26 @@
 package io.ebean;
 
+import org.junit.After;
 import org.junit.Test;
 import org.tests.model.basic.Customer;
 import org.tests.model.basic.ResetBasicData;
 
+import java.time.Clock;
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
 import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
 public class ExtendedServerTest extends BaseTestCase {
 
+  @After
+  public void cleanup() {
+    Ebean.getDefaultServer()
+      .extended()
+      .setClock(Clock.systemUTC());
+  }
+
   @Test
   public void findList() {
 
@@ -38,4 +49,47 @@ public class ExtendedServerTest extends BaseTestCase {
     }
   }
 
+  @Test
+  public void mockClock() {
+
+    EbeanServer server = Ebean.getDefaultServer();
+    final Instant snapshot = Instant.now();
+    Instant backedSnapshot = snapshot.minus(1, ChronoUnit.DAYS);
+    Clock snapshotClock = Clock.fixed(backedSnapshot, Clock.systemUTC().getZone());
+
+    server.extended().setClock(snapshotClock);
+
+    ResetBasicData.reset();
+
+    int count = server
+      .find(Customer.class)
+      .where()
+      .gt("cretime", snapshot)
+      .findCount();
+    assertThat(count).isEqualTo(0);
+
+    int count2 = server
+      .find(Customer.class)
+      .where()
+      .ge("cretime", backedSnapshot)
+      .findCount();
+    assertThat(count2).isGreaterThan(0);
+
+    int count3 = server
+      .find(Customer.class)
+      .where()
+      .gt("updtime", snapshot)
+      .findCount();
+    assertThat(count3).isEqualTo(0);
+
+    int count4 = server
+      .find(Customer.class)
+      .where()
+      .ge("updtime", backedSnapshot)
+      .findCount();
+    assertThat(count4).isGreaterThan(0);
+
+
+  }
+
 }
diff --git a/src/test/java/io/ebeaninternal/api/TDSpiEbeanServer.java b/src/test/java/io/ebeaninternal/api/TDSpiEbeanServer.java
index c83e84eb8..d52327463 100644
--- a/src/test/java/io/ebeaninternal/api/TDSpiEbeanServer.java
+++ b/src/test/java/io/ebeaninternal/api/TDSpiEbeanServer.java
@@ -55,6 +55,7 @@ import io.ebeaninternal.server.transaction.RemoteTransactionEvent;
 import javax.persistence.OptimisticLockException;
 import javax.persistence.PersistenceException;
 import java.lang.reflect.Type;
+import java.time.Clock;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
@@ -85,6 +86,16 @@ public class TDSpiEbeanServer implements SpiEbeanServer {
     return this;
   }
 
+  @Override
+  public long clockNow() {
+    return System.currentTimeMillis();
+  }
+
+  @Override
+  public void setClock(Clock clock) {
+
+  }
+
   @Override
   public SpiLogManager log() {
     return null;