diff --git a/google-cloud-storage/src/main/java/com/google/cloud/storage/BucketInfo.java b/google-cloud-storage/src/main/java/com/google/cloud/storage/BucketInfo.java
index f2e82e173..10a95135c 100644
--- a/google-cloud-storage/src/main/java/com/google/cloud/storage/BucketInfo.java
+++ b/google-cloud-storage/src/main/java/com/google/cloud/storage/BucketInfo.java
@@ -345,7 +345,9 @@ public LifecycleRule(LifecycleAction action, LifecycleCondition condition) {
           && condition.getAge() == null
           && condition.getCreatedBefore() == null
           && condition.getMatchesStorageClass() == null
-          && condition.getNumberOfNewerVersions() == null) {
+          && condition.getNumberOfNewerVersions() == null
+          && condition.getCustomTimeBefore() == null
+          && condition.getDaysSinceCustomTime() == null) {
         throw new IllegalArgumentException(
             "You must specify at least one condition to use object lifecycle "
                 + "management. Please see https://cloud.google.com/storage/docs/lifecycle for details.");
@@ -405,7 +407,7 @@ Rule toPb() {
               .setCreatedBefore(
                   lifecycleCondition.getCreatedBefore() == null
                       ? null
-                      : new DateTime(true, lifecycleCondition.getCreatedBefore().getValue(), 0))
+                      : new DateTime(false, lifecycleCondition.getCreatedBefore().getValue(), 0))
               .setIsLive(lifecycleCondition.getIsLive())
               .setNumNewerVersions(lifecycleCondition.getNumberOfNewerVersions())
               .setMatchesStorageClass(
@@ -413,7 +415,12 @@ Rule toPb() {
                       ? null
                       : transform(
                           lifecycleCondition.getMatchesStorageClass(),
-                          Functions.toStringFunction()));
+                          Functions.toStringFunction()))
+              .setCustomTimeBefore(
+                  lifecycleCondition.getCustomTimeBefore() == null
+                      ? null
+                      : new DateTime(lifecycleCondition.getCustomTimeBefore().getValue()))
+              .setDaysSinceCustomTime(lifecycleCondition.getDaysSinceCustomTime());
 
       rule.setCondition(condition);
 
@@ -456,7 +463,9 @@ static LifecycleRule fromPb(Rule rule) {
                             public StorageClass apply(String storageClass) {
                               return StorageClass.valueOf(storageClass);
                             }
-                          }));
+                          }))
+              .setCustomTimeBefore(condition.getCustomTimeBefore())
+              .setDaysSinceCustomTime(condition.getDaysSinceCustomTime());
 
       return new LifecycleRule(lifecycleAction, conditionBuilder.build());
     }
@@ -474,6 +483,8 @@ public static class LifecycleCondition implements Serializable {
       private final Integer numberOfNewerVersions;
       private final Boolean isLive;
       private final List<StorageClass> matchesStorageClass;
+      private final DateTime customTimeBefore;
+      private final Integer daysSinceCustomTime;
 
       private LifecycleCondition(Builder builder) {
         this.age = builder.age;
@@ -481,6 +492,8 @@ private LifecycleCondition(Builder builder) {
         this.numberOfNewerVersions = builder.numberOfNewerVersions;
         this.isLive = builder.isLive;
         this.matchesStorageClass = builder.matchesStorageClass;
+        this.customTimeBefore = builder.customTimeBefore;
+        this.daysSinceCustomTime = builder.daysSinceCustomTime;
       }
 
       public Builder toBuilder() {
@@ -489,7 +502,9 @@ public Builder toBuilder() {
             .setCreatedBefore(this.createdBefore)
             .setNumberOfNewerVersions(this.numberOfNewerVersions)
             .setIsLive(this.isLive)
-            .setMatchesStorageClass(this.matchesStorageClass);
+            .setMatchesStorageClass(this.matchesStorageClass)
+            .setCustomTimeBefore(this.customTimeBefore)
+            .setDaysSinceCustomTime(this.daysSinceCustomTime);
       }
 
       public static Builder newBuilder() {
@@ -504,6 +519,8 @@ public String toString() {
             .add("numberofNewerVersions", numberOfNewerVersions)
             .add("isLive", isLive)
             .add("matchesStorageClass", matchesStorageClass)
+            .add("customTimeBefore", customTimeBefore)
+            .add("daysSinceCustomTime", daysSinceCustomTime)
             .toString();
       }
 
@@ -527,6 +544,14 @@ public List<StorageClass> getMatchesStorageClass() {
         return matchesStorageClass;
       }
 
+      public DateTime getCustomTimeBefore() {
+        return customTimeBefore;
+      }
+
+      public Integer getDaysSinceCustomTime() {
+        return daysSinceCustomTime;
+      }
+
       /** Builder for {@code LifecycleCondition}. */
       public static class Builder {
         private Integer age;
@@ -534,6 +559,8 @@ public static class Builder {
         private Integer numberOfNewerVersions;
         private Boolean isLive;
         private List<StorageClass> matchesStorageClass;
+        private DateTime customTimeBefore;
+        private Integer daysSinceCustomTime;
 
         private Builder() {}
 
@@ -588,6 +615,16 @@ public Builder setMatchesStorageClass(List<StorageClass> matchesStorageClass) {
           return this;
         }
 
+        public Builder setCustomTimeBefore(DateTime customTimeBefore) {
+          this.customTimeBefore = customTimeBefore;
+          return this;
+        }
+
+        public Builder setDaysSinceCustomTime(Integer daysSinceCustomTime) {
+          this.daysSinceCustomTime = daysSinceCustomTime;
+          return this;
+        }
+
         /** Builds a {@code LifecycleCondition} object. * */
         public LifecycleCondition build() {
           return new LifecycleCondition(this);
diff --git a/google-cloud-storage/src/test/java/com/google/cloud/storage/BucketInfoTest.java b/google-cloud-storage/src/test/java/com/google/cloud/storage/BucketInfoTest.java
index 196e6b493..ed95f27ba 100644
--- a/google-cloud-storage/src/test/java/com/google/cloud/storage/BucketInfoTest.java
+++ b/google-cloud-storage/src/test/java/com/google/cloud/storage/BucketInfoTest.java
@@ -21,6 +21,7 @@
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 
+import com.google.api.client.util.DateTime;
 import com.google.api.services.storage.model.Bucket;
 import com.google.api.services.storage.model.Bucket.Lifecycle.Rule;
 import com.google.cloud.storage.Acl.Project;
@@ -321,6 +322,18 @@ public void testLifecycleRules() {
         setStorageClassLifecycleRule.getAction().getStorageClass());
     assertTrue(setStorageClassLifecycleRule.getCondition().getIsLive());
     assertEquals(10, setStorageClassLifecycleRule.getCondition().getNumNewerVersions().intValue());
+
+    Rule lifecycleRule =
+        new LifecycleRule(
+                LifecycleAction.newSetStorageClassAction(StorageClass.COLDLINE),
+                LifecycleCondition.newBuilder()
+                    .setCustomTimeBefore(new DateTime(System.currentTimeMillis()))
+                    .setDaysSinceCustomTime(30)
+                    .build())
+            .toPb();
+    assertEquals(StorageClass.COLDLINE.toString(), lifecycleRule.getAction().getStorageClass());
+    assertEquals(30, lifecycleRule.getCondition().getDaysSinceCustomTime().intValue());
+    assertNotNull(lifecycleRule.getCondition().getCustomTimeBefore());
   }
 
   @Test
diff --git a/google-cloud-storage/src/test/java/com/google/cloud/storage/it/ITStorageTest.java b/google-cloud-storage/src/test/java/com/google/cloud/storage/it/ITStorageTest.java
index 7966c9281..f89c6c341 100644
--- a/google-cloud-storage/src/test/java/com/google/cloud/storage/it/ITStorageTest.java
+++ b/google-cloud-storage/src/test/java/com/google/cloud/storage/it/ITStorageTest.java
@@ -444,6 +444,8 @@ public void testGetBucketLifecycleRules() {
                             .setIsLive(false)
                             .setCreatedBefore(new DateTime(System.currentTimeMillis()))
                             .setMatchesStorageClass(ImmutableList.of(StorageClass.COLDLINE))
+                            .setCustomTimeBefore(new DateTime(System.currentTimeMillis()))
+                            .setDaysSinceCustomTime(30)
                             .build())))
             .build());
     Bucket remoteBucket =
@@ -460,6 +462,8 @@ public void testGetBucketLifecycleRules() {
       assertFalse(lifecycleRule.getCondition().getIsLive());
       assertEquals(1, lifecycleRule.getCondition().getAge().intValue());
       assertEquals(1, lifecycleRule.getCondition().getMatchesStorageClass().size());
+      assertEquals(30, lifecycleRule.getCondition().getDaysSinceCustomTime().intValue());
+      assertNotNull(lifecycleRule.getCondition().getCustomTimeBefore());
     } finally {
       storage.delete(lifecycleTestBucketName);
     }