diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/ITimeItem.java b/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/ITimeItem.java
index de87d23f6..254fd02bb 100644
--- a/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/ITimeItem.java
+++ b/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/ITimeItem.java
@@ -35,6 +35,11 @@ static IAtomicOrUnionType<ITimeItem> type() {
     return MetaschemaDataTypeProvider.TIME.getItemType();
   }
 
+  @Override
+  default IAtomicOrUnionType<? extends ITimeItem> getType() {
+    return type();
+  }
+
   /**
    * Construct a new date/time item using the provided string {@code value}.
    *
diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/ITimeWithTimeZoneItem.java b/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/ITimeWithTimeZoneItem.java
index f8276c481..a29484b53 100644
--- a/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/ITimeWithTimeZoneItem.java
+++ b/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/ITimeWithTimeZoneItem.java
@@ -36,6 +36,11 @@ static IAtomicOrUnionType<ITimeWithTimeZoneItem> type() {
     return MetaschemaDataTypeProvider.TIME_WITH_TZ.getItemType();
   }
 
+  @Override
+  default IAtomicOrUnionType<ITimeWithTimeZoneItem> getType() {
+    return type();
+  }
+
   /**
    * Construct a new time item using the provided string {@code value}.
    *
diff --git a/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/impl/AbstractTimeItem.java b/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/impl/AbstractTimeItem.java
index e9e57252e..f58f125f7 100644
--- a/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/impl/AbstractTimeItem.java
+++ b/core/src/main/java/gov/nist/secauto/metaschema/core/metapath/item/atomic/impl/AbstractTimeItem.java
@@ -31,6 +31,11 @@ protected AbstractTimeItem(@NonNull TYPE value) {
     super(value);
   }
 
+  @Override
+  protected String getValueSignature() {
+    return "'" + asString() + "'";
+  }
+
   @Override
   public int hashCode() {
     return asOffsetTime().hashCode();