diff --git a/src/schema.js b/src/schema.js
index 651fdf1..bcfee5e 100644
--- a/src/schema.js
+++ b/src/schema.js
@@ -5,6 +5,7 @@ import walkSync from 'walk-sync'
 import { resolvers } from './resolvers'
 import { authenticationFieldTransformer } from './transformers/authenticationFieldTransformer'
 import { subscriptionFieldTransformer } from './transformers/subscriptionFieldTransformer'
+import { createdUpdatedFieldTransformer } from './transformers/createdUpdatedFieldTransformer'
 
 /*
  * Determine type definitions from which to auto generate queries and mutations
@@ -46,6 +47,7 @@ export const schema = transformSchema(
   }),
   [
     subscriptionFieldTransformer,
-    authenticationFieldTransformer
+    authenticationFieldTransformer,
+    createdUpdatedFieldTransformer,
   ]
 )
diff --git a/src/schema/interface/ActionInterface.graphql b/src/schema/interface/ActionInterface.graphql
index a34f702..c9b1890 100644
--- a/src/schema/interface/ActionInterface.graphql
+++ b/src/schema/interface/ActionInterface.graphql
@@ -34,9 +34,9 @@ interface ActionInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ########################
   ### ThingInterface properties ###
diff --git a/src/schema/interface/CreativeWorkInterface.graphql b/src/schema/interface/CreativeWorkInterface.graphql
index 6f0c450..27f1d48 100644
--- a/src/schema/interface/CreativeWorkInterface.graphql
+++ b/src/schema/interface/CreativeWorkInterface.graphql
@@ -34,9 +34,9 @@ interface CreativeWorkInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ########################
   ### ThingInterface properties ###
diff --git a/src/schema/interface/LegalPersonInterface.graphql b/src/schema/interface/LegalPersonInterface.graphql
index 9a840e9..7a0b1fc 100644
--- a/src/schema/interface/LegalPersonInterface.graphql
+++ b/src/schema/interface/LegalPersonInterface.graphql
@@ -33,9 +33,9 @@ interface LegalPersonInterface {
     "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
     type: String
     "http://purl.org/dc/terms/created"
-    created: String
+    created: _Neo4jDateTime
     "http://purl.org/dc/terms/modified"
-    modified: String
+    modified: _Neo4jDateTime
 
     #################################
     ### ThingInterface properties ###
diff --git a/src/schema/interface/MediaObjectInterface.graphql b/src/schema/interface/MediaObjectInterface.graphql
index 6e18645..719d4b6 100644
--- a/src/schema/interface/MediaObjectInterface.graphql
+++ b/src/schema/interface/MediaObjectInterface.graphql
@@ -34,9 +34,9 @@ interface MediaObjectInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   #################################
   ### ThingInterface properties ###
diff --git a/src/schema/interface/OrganizationInterface.graphql b/src/schema/interface/OrganizationInterface.graphql
index fe1915b..cbed74b 100644
--- a/src/schema/interface/OrganizationInterface.graphql
+++ b/src/schema/interface/OrganizationInterface.graphql
@@ -34,9 +34,9 @@ interface OrganizationInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ########################
   ### ThingInterface properties ###
diff --git a/src/schema/interface/PerformerInterface.graphql b/src/schema/interface/PerformerInterface.graphql
index 0cf459e..183d309 100644
--- a/src/schema/interface/PerformerInterface.graphql
+++ b/src/schema/interface/PerformerInterface.graphql
@@ -33,9 +33,9 @@ interface PerformerInterface {
     "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
     type: String
     "http://purl.org/dc/terms/created"
-    created: String
+    created: _Neo4jDateTime
     "http://purl.org/dc/terms/modified"
-    modified: String
+    modified: _Neo4jDateTime
 
     #################################
     ### ThingInterface properties ###
diff --git a/src/schema/interface/SearchableInterface.graphql b/src/schema/interface/SearchableInterface.graphql
index f149ebb..1351399 100644
--- a/src/schema/interface/SearchableInterface.graphql
+++ b/src/schema/interface/SearchableInterface.graphql
@@ -57,9 +57,9 @@ interface SearchableInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/interface/ThingInterface.graphql b/src/schema/interface/ThingInterface.graphql
index b96633d..3d4fb21 100644
--- a/src/schema/interface/ThingInterface.graphql
+++ b/src/schema/interface/ThingInterface.graphql
@@ -58,7 +58,7 @@ interface ThingInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 }
diff --git a/src/schema/type/Action.graphql b/src/schema/type/Action.graphql
index 9d35b06..9081c94 100644
--- a/src/schema/type/Action.graphql
+++ b/src/schema/type/Action.graphql
@@ -34,9 +34,9 @@ type Action implements ThingInterface & ActionInterface & ProvenanceEntityInterf
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/AddAction.graphql b/src/schema/type/AddAction.graphql
index 914968c..39c8769 100644
--- a/src/schema/type/AddAction.graphql
+++ b/src/schema/type/AddAction.graphql
@@ -34,9 +34,9 @@ type AddAction implements ThingInterface & ActionInterface & ProvenanceEntityInt
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ########################
   ### ThingInterface properties ###
diff --git a/src/schema/type/Article.graphql b/src/schema/type/Article.graphql
index 31a1488..a1e66d1 100644
--- a/src/schema/type/Article.graphql
+++ b/src/schema/type/Article.graphql
@@ -34,9 +34,9 @@ type Article implements SearchableInterface & ThingInterface & ProvenanceEntityI
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Audience.graphql b/src/schema/type/Audience.graphql
index 8fec7e4..520ae65 100644
--- a/src/schema/type/Audience.graphql
+++ b/src/schema/type/Audience.graphql
@@ -34,9 +34,9 @@ type Audience implements ThingInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
   ########################
   ### ThingInterface properties ###
   "https://schema.org/additionalType"
diff --git a/src/schema/type/AudioObject.graphql b/src/schema/type/AudioObject.graphql
index 2d73162..f26b7ba 100644
--- a/src/schema/type/AudioObject.graphql
+++ b/src/schema/type/AudioObject.graphql
@@ -34,9 +34,9 @@ type AudioObject implements SearchableInterface & ThingInterface & ProvenanceEnt
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/ControlAction.graphql b/src/schema/type/ControlAction.graphql
index 8cb3bb4..b2857bf 100644
--- a/src/schema/type/ControlAction.graphql
+++ b/src/schema/type/ControlAction.graphql
@@ -34,9 +34,9 @@ type ControlAction implements ThingInterface & ActionInterface & ProvenanceEntit
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ########################
   ### ThingInterface properties ###
diff --git a/src/schema/type/DataDownload.graphql b/src/schema/type/DataDownload.graphql
index ed8b650..7a3a3b2 100644
--- a/src/schema/type/DataDownload.graphql
+++ b/src/schema/type/DataDownload.graphql
@@ -34,9 +34,9 @@ type DataDownload implements SearchableInterface & ThingInterface & ProvenanceEn
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Dataset.graphql b/src/schema/type/Dataset.graphql
index 7eafa6e..3612816 100644
--- a/src/schema/type/Dataset.graphql
+++ b/src/schema/type/Dataset.graphql
@@ -34,9 +34,9 @@ type Dataset implements SearchableInterface & ThingInterface & ProvenanceEntityI
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/DefinedTerm.graphql b/src/schema/type/DefinedTerm.graphql
index dee7020..4fb32e1 100644
--- a/src/schema/type/DefinedTerm.graphql
+++ b/src/schema/type/DefinedTerm.graphql
@@ -34,9 +34,9 @@ type DefinedTerm implements ThingInterface {
     "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
     type: String
     "http://purl.org/dc/terms/created"
-    created: String
+    created: _Neo4jDateTime
     "http://purl.org/dc/terms/modified"
-    modified: String
+    modified: _Neo4jDateTime
 
     #################################
     ### ThingInterface properties ###
diff --git a/src/schema/type/DefinedTermSet.graphql b/src/schema/type/DefinedTermSet.graphql
index de450ac..8c550be 100644
--- a/src/schema/type/DefinedTermSet.graphql
+++ b/src/schema/type/DefinedTermSet.graphql
@@ -34,9 +34,9 @@ type DefinedTermSet implements CreativeWorkInterface & ThingInterface {
     "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
     type: String
     "http://purl.org/dc/terms/created"
-    created: String
+    created: _Neo4jDateTime
     "http://purl.org/dc/terms/modified"
-    modified: String
+    modified: _Neo4jDateTime
 
     #################################
     ### ThingInterface properties ###
diff --git a/src/schema/type/DeleteAction.graphql b/src/schema/type/DeleteAction.graphql
index 3ffe6ce..48e1e72 100644
--- a/src/schema/type/DeleteAction.graphql
+++ b/src/schema/type/DeleteAction.graphql
@@ -58,9 +58,9 @@ type DeleteAction implements ThingInterface & ActionInterface & ProvenanceEntity
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   #######################
   ### SKOS properties ###
diff --git a/src/schema/type/DigitalDocument.graphql b/src/schema/type/DigitalDocument.graphql
index 137862b..91e6b18 100644
--- a/src/schema/type/DigitalDocument.graphql
+++ b/src/schema/type/DigitalDocument.graphql
@@ -34,9 +34,9 @@ type DigitalDocument implements SearchableInterface & ThingInterface & Provenanc
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/DigitalDocumentPermission.graphql b/src/schema/type/DigitalDocumentPermission.graphql
index e1b9e0c..bdee763 100644
--- a/src/schema/type/DigitalDocumentPermission.graphql
+++ b/src/schema/type/DigitalDocumentPermission.graphql
@@ -34,9 +34,9 @@ type DigitalDocumentPermission implements ThingInterface & ProvenanceEntityInter
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   #################################
   ### ThingInterface properties ###
diff --git a/src/schema/type/EntryPoint.graphql b/src/schema/type/EntryPoint.graphql
index 6516020..9daebbe 100644
--- a/src/schema/type/EntryPoint.graphql
+++ b/src/schema/type/EntryPoint.graphql
@@ -34,9 +34,9 @@ type EntryPoint implements ThingInterface & ProvenanceEntityInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Event.graphql b/src/schema/type/Event.graphql
index d0f3c83..8eb0454 100644
--- a/src/schema/type/Event.graphql
+++ b/src/schema/type/Event.graphql
@@ -34,9 +34,9 @@ type Event implements SearchableInterface & ThingInterface & ProvenanceEntityInt
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/ImageObject.graphql b/src/schema/type/ImageObject.graphql
index 13c39cb..7607d36 100644
--- a/src/schema/type/ImageObject.graphql
+++ b/src/schema/type/ImageObject.graphql
@@ -34,9 +34,9 @@ type ImageObject implements SearchableInterface & ThingInterface & ProvenanceEnt
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Intangible.graphql b/src/schema/type/Intangible.graphql
index 3ef9118..52d0f69 100644
--- a/src/schema/type/Intangible.graphql
+++ b/src/schema/type/Intangible.graphql
@@ -34,9 +34,9 @@ type Intangible implements SearchableInterface & ThingInterface & ProvenanceEnti
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
   ####################################
   ### SearchableInterface property ###
   _searchScore: Float
diff --git a/src/schema/type/ItemList.graphql b/src/schema/type/ItemList.graphql
index a72fec3..8d73403 100644
--- a/src/schema/type/ItemList.graphql
+++ b/src/schema/type/ItemList.graphql
@@ -34,9 +34,9 @@ type ItemList implements ThingInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   #################################
   ### ThingInterface properties ###
diff --git a/src/schema/type/ListItem.graphql b/src/schema/type/ListItem.graphql
index 2656b6a..99f2524 100644
--- a/src/schema/type/ListItem.graphql
+++ b/src/schema/type/ListItem.graphql
@@ -34,9 +34,9 @@ type ListItem implements ThingInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   #################################
   ### ThingInterface properties ###
diff --git a/src/schema/type/MediaObject.graphql b/src/schema/type/MediaObject.graphql
index e621eb3..19267bd 100644
--- a/src/schema/type/MediaObject.graphql
+++ b/src/schema/type/MediaObject.graphql
@@ -34,9 +34,9 @@ type MediaObject implements SearchableInterface & ThingInterface & ProvenanceEnt
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/MusicAlbum.graphql b/src/schema/type/MusicAlbum.graphql
index b923ffa..b23aeea 100644
--- a/src/schema/type/MusicAlbum.graphql
+++ b/src/schema/type/MusicAlbum.graphql
@@ -34,9 +34,9 @@ type MusicAlbum implements SearchableInterface & ThingInterface & ProvenanceEnti
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/MusicComposition.graphql b/src/schema/type/MusicComposition.graphql
index 8f2a278..ffdc813 100644
--- a/src/schema/type/MusicComposition.graphql
+++ b/src/schema/type/MusicComposition.graphql
@@ -34,9 +34,9 @@ type MusicComposition implements SearchableInterface & ThingInterface & Provenan
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/MusicGroup.graphql b/src/schema/type/MusicGroup.graphql
index 4e8da24..959d5c8 100644
--- a/src/schema/type/MusicGroup.graphql
+++ b/src/schema/type/MusicGroup.graphql
@@ -34,9 +34,9 @@ type MusicGroup implements SearchableInterface & ThingInterface & ProvenanceEnti
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/MusicPlaylist.graphql b/src/schema/type/MusicPlaylist.graphql
index 703da50..1aff9af 100644
--- a/src/schema/type/MusicPlaylist.graphql
+++ b/src/schema/type/MusicPlaylist.graphql
@@ -34,9 +34,9 @@ type MusicPlaylist implements SearchableInterface & ThingInterface & ProvenanceE
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/MusicRecording.graphql b/src/schema/type/MusicRecording.graphql
index bb57f62..61d7ae4 100644
--- a/src/schema/type/MusicRecording.graphql
+++ b/src/schema/type/MusicRecording.graphql
@@ -34,9 +34,9 @@ type MusicRecording implements SearchableInterface & ThingInterface & Provenance
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Occupation.graphql b/src/schema/type/Occupation.graphql
index 51f5717..aaf27fe 100644
--- a/src/schema/type/Occupation.graphql
+++ b/src/schema/type/Occupation.graphql
@@ -34,9 +34,9 @@ type Occupation implements ThingInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ########################
   ### ThingInterface properties ###
diff --git a/src/schema/type/Organization.graphql b/src/schema/type/Organization.graphql
index 3cf1913..020dac0 100644
--- a/src/schema/type/Organization.graphql
+++ b/src/schema/type/Organization.graphql
@@ -34,9 +34,9 @@ type Organization implements SearchableInterface & ThingInterface & ProvenanceEn
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Person.graphql b/src/schema/type/Person.graphql
index ebb5b08..81f48d2 100644
--- a/src/schema/type/Person.graphql
+++ b/src/schema/type/Person.graphql
@@ -34,9 +34,9 @@ type Person implements SearchableInterface & ThingInterface & ProvenanceEntityIn
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Place.graphql b/src/schema/type/Place.graphql
index 307309d..f8896f5 100644
--- a/src/schema/type/Place.graphql
+++ b/src/schema/type/Place.graphql
@@ -34,9 +34,9 @@ type Place implements SearchableInterface & ThingInterface & ProvenanceEntityInt
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Product.graphql b/src/schema/type/Product.graphql
index e30a8a5..209b6ff 100644
--- a/src/schema/type/Product.graphql
+++ b/src/schema/type/Product.graphql
@@ -34,9 +34,9 @@ type Product implements SearchableInterface & ThingInterface & ProvenanceEntityI
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/Property.graphql b/src/schema/type/Property.graphql
index a22defa..c3ceaa1 100644
--- a/src/schema/type/Property.graphql
+++ b/src/schema/type/Property.graphql
@@ -34,9 +34,9 @@ type Property implements ThingInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   #################################
   ### ThingInterface properties ###
diff --git a/src/schema/type/PropertyValue.graphql b/src/schema/type/PropertyValue.graphql
index 90b5964..31a3b02 100644
--- a/src/schema/type/PropertyValue.graphql
+++ b/src/schema/type/PropertyValue.graphql
@@ -34,9 +34,9 @@ type PropertyValue implements ThingInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ########################
   ### ThingInterface properties ###
diff --git a/src/schema/type/PropertyValueSpecification.graphql b/src/schema/type/PropertyValueSpecification.graphql
index 916ec7b..c8aa08f 100644
--- a/src/schema/type/PropertyValueSpecification.graphql
+++ b/src/schema/type/PropertyValueSpecification.graphql
@@ -34,9 +34,9 @@ type PropertyValueSpecification implements ThingInterface {
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   #################################
   ### ThingInterface properties ###
diff --git a/src/schema/type/Rating.graphql b/src/schema/type/Rating.graphql
index c8a8ff6..715ec7e 100644
--- a/src/schema/type/Rating.graphql
+++ b/src/schema/type/Rating.graphql
@@ -34,9 +34,9 @@ type Rating implements ThingInterface {
     "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
     type: String
     "http://purl.org/dc/terms/created"
-    created: String
+    created: _Neo4jDateTime
     "http://purl.org/dc/terms/modified"
-    modified: String
+    modified: _Neo4jDateTime
 
     #################################
     ### ThingInterface properties ###
diff --git a/src/schema/type/ReplaceAction.graphql b/src/schema/type/ReplaceAction.graphql
index 7ad629e..e0db79d 100644
--- a/src/schema/type/ReplaceAction.graphql
+++ b/src/schema/type/ReplaceAction.graphql
@@ -34,9 +34,9 @@ type ReplaceAction implements ThingInterface & ActionInterface & ProvenanceEntit
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ########################
   ### ThingInterface properties ###
diff --git a/src/schema/type/Review.graphql b/src/schema/type/Review.graphql
index d41a493..8fbbd8d 100644
--- a/src/schema/type/Review.graphql
+++ b/src/schema/type/Review.graphql
@@ -34,9 +34,9 @@ type Review implements SearchableInterface & ThingInterface & ProvenanceEntityIn
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/SoftwareApplication.graphql b/src/schema/type/SoftwareApplication.graphql
index 8730a0c..8e64b7c 100644
--- a/src/schema/type/SoftwareApplication.graphql
+++ b/src/schema/type/SoftwareApplication.graphql
@@ -34,9 +34,9 @@ type SoftwareApplication implements SearchableInterface & ThingInterface & Prove
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/schema/type/VideoObject.graphql b/src/schema/type/VideoObject.graphql
index ac85d83..6a4795a 100644
--- a/src/schema/type/VideoObject.graphql
+++ b/src/schema/type/VideoObject.graphql
@@ -34,9 +34,9 @@ type VideoObject implements SearchableInterface & ThingInterface & ProvenanceEnt
   "http://purl.org/dc/terms/type,http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
   type: String
   "http://purl.org/dc/terms/created"
-  created: String
+  created: _Neo4jDateTime
   "http://purl.org/dc/terms/modified"
-  modified: String
+  modified: _Neo4jDateTime
 
   ####################################
   ### SearchableInterface property ###
diff --git a/src/transformers/createdUpdatedFieldTransformer.js b/src/transformers/createdUpdatedFieldTransformer.js
new file mode 100644
index 0000000..4159875
--- /dev/null
+++ b/src/transformers/createdUpdatedFieldTransformer.js
@@ -0,0 +1,63 @@
+import { TransformRootFields } from 'graphql-tools'
+import { buildPropertyValue, parseFieldName } from '../utils/schema'
+import { buildArgument, buildName } from 'neo4j-graphql-js/dist/augment/ast'
+import { Kind } from 'graphql/language/kinds'
+
+export const createdUpdatedFieldTransformer = new TransformRootFields((operation, fieldName, field) => {
+  // Only needed for mutations
+  if (operation !== 'Mutation') {
+    return undefined
+  }
+
+  const { action } = parseFieldName(fieldName)
+
+  if (action !== 'Create' && action !== 'Update' && action !== 'Merge') {
+    return undefined
+  }
+
+  const next = field.resolve
+
+  field.resolve = (object, params, context, info) => {
+    info.fieldNodes = info.fieldNodes.map(fieldNode => {
+      const createdIndex = fieldNode.arguments.findIndex(argument => argument.name.value === 'created')
+      const modifiedIndex = fieldNode.arguments.findIndex(argument => argument.name.value === 'modified')
+
+      // remove given created and modified arguments
+      if (createdIndex !== -1) {
+        fieldNode.arguments.splice(createdIndex, 1)
+      }
+
+      if (modifiedIndex !== -1) {
+        fieldNode.arguments.splice(modifiedIndex, 1)
+      }
+
+      const date = new Date()
+
+      const value = {
+        kind: Kind.OBJECT,
+        fields: [
+          buildPropertyValue('year', Kind.INT, date.getUTCFullYear()),
+          buildPropertyValue('month', Kind.INT, date.getUTCMonth()),
+          buildPropertyValue('day', Kind.INT, date.getUTCDate()),
+          buildPropertyValue('hour', Kind.INT, date.getUTCHours()),
+          buildPropertyValue('minute', Kind.INT, date.getUTCMinutes()),
+          buildPropertyValue('second', Kind.INT, date.getUTCSeconds()),
+          buildPropertyValue('millisecond', Kind.INT, date.getUTCMilliseconds()),
+          buildPropertyValue('timezone', Kind.STRING, 'z')
+        ]
+      }
+
+      if (action === 'Create') {
+        fieldNode.arguments.push(buildArgument({ name: buildName({ name: 'created' }), value }))
+      }
+
+      if (action === 'Create' || action === 'Update' || action === 'Merge') {
+        fieldNode.arguments.push(buildArgument({ name: buildName({ name: 'modified' }), value }))
+      }
+
+      return fieldNode
+    })
+
+    return next(object, params, context, info)
+  }
+})
diff --git a/src/utils/schema.js b/src/utils/schema.js
index 60c0004..6c042d3 100644
--- a/src/utils/schema.js
+++ b/src/utils/schema.js
@@ -1,3 +1,6 @@
+import { Kind } from 'graphql/language/kinds'
+import { buildName } from 'neo4j-graphql-js/dist/augment/ast'
+
 /**
  * Parse the given field name into an action and type
  * @param {string} fieldName
@@ -23,3 +26,20 @@ export const generateScope = (mutation, fieldName) => {
 
   return `${mutation}:${type}:${action}`
 }
+
+/**
+ * Build an ObjectField AST node
+ * @param name
+ * @param kind
+ * @param value
+ * @return {{kind: "ObjectField", name: *, value: {kind, block: boolean, value}}}
+ */
+export const buildPropertyValue = (name, kind, value) => ({
+  kind: Kind.OBJECT_FIELD,
+  name: buildName({ name: name }),
+  value: {
+    kind: kind,
+    value: value,
+    block: false
+  }
+})