diff --git a/Cargo.lock b/Cargo.lock
index 29534203..513e105b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -183,6 +183,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "diesel_derives 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pq-sys 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "r2d2 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index b90d62a8..0817ab7d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ serde_derive = "1.0"
 serde_json = "1.0"
 
 [dependencies.diesel]
-features = ["postgres", "r2d2"]
+features = ["postgres", "r2d2", "chrono"]
 version = "*"
 
 [dependencies.rocket_contrib]
diff --git a/migrations/2018-04-30-170445_timestamps/down.sql b/migrations/2018-04-30-170445_timestamps/down.sql
new file mode 100644
index 00000000..6c688b74
--- /dev/null
+++ b/migrations/2018-04-30-170445_timestamps/down.sql
@@ -0,0 +1,5 @@
+-- This file should undo anything in `up.sql`
+ALTER TABLE posts DROP COLUMN creation_date;
+ALTER TABLE blogs DROP COLUMN creation_date;
+ALTER TABLE users DROP COLUMN creation_date;
+ALTER TABLE instances DROP COLUMN creation_date;
diff --git a/migrations/2018-04-30-170445_timestamps/up.sql b/migrations/2018-04-30-170445_timestamps/up.sql
new file mode 100644
index 00000000..23ad535e
--- /dev/null
+++ b/migrations/2018-04-30-170445_timestamps/up.sql
@@ -0,0 +1,5 @@
+-- Your SQL goes here
+ALTER TABLE posts ADD COLUMN creation_date TIMESTAMP NOT NULL DEFAULT now();
+ALTER TABLE blogs ADD COLUMN creation_date TIMESTAMP NOT NULL DEFAULT now();
+ALTER TABLE users ADD COLUMN creation_date TIMESTAMP NOT NULL DEFAULT now();
+ALTER TABLE instances ADD COLUMN creation_date TIMESTAMP NOT NULL DEFAULT now();
diff --git a/src/models/blogs.rs b/src/models/blogs.rs
index fd247baa..f6a03128 100644
--- a/src/models/blogs.rs
+++ b/src/models/blogs.rs
@@ -1,3 +1,4 @@
+use chrono::NaiveDateTime;
 use diesel::{self, QueryDsl, RunQueryDsl, ExpressionMethods, PgConnection};
 
 use activity_pub::activity::Activity;
@@ -16,7 +17,8 @@ pub struct Blog {
     pub summary: String,
     pub outbox_url: String,
     pub inbox_url: String,
-    pub instance_id: i32
+    pub instance_id: i32,
+    pub creation_date: NaiveDateTime    
 }
 
 #[derive(Insertable)]
diff --git a/src/models/instance.rs b/src/models/instance.rs
index 0194d870..476e525a 100644
--- a/src/models/instance.rs
+++ b/src/models/instance.rs
@@ -1,3 +1,4 @@
+use chrono::NaiveDateTime;
 use diesel::{self, QueryDsl, RunQueryDsl, ExpressionMethods, PgConnection};
 use std::iter::Iterator;
 
@@ -11,7 +12,8 @@ pub struct Instance {
     pub public_domain: String,
     pub name: String,
     pub local: bool,
-    pub blocked: bool
+    pub blocked: bool,
+    pub creation_date: NaiveDateTime    
 }
 
 #[derive(Insertable)]
diff --git a/src/models/posts.rs b/src/models/posts.rs
index d9f3711f..1dfc0eb8 100644
--- a/src/models/posts.rs
+++ b/src/models/posts.rs
@@ -1,3 +1,4 @@
+use chrono::NaiveDateTime;
 use diesel::{self, PgConnection, RunQueryDsl, QueryDsl, ExpressionMethods, BelongingToDsl};
 use diesel::dsl::any;
 use serde_json;
@@ -17,7 +18,8 @@ pub struct Post {
     pub title: String,
     pub content: String,
     pub published: bool,
-    pub license: String
+    pub license: String,
+    pub creation_date: NaiveDateTime    
 }
 
 #[derive(Insertable)]
diff --git a/src/models/users.rs b/src/models/users.rs
index ac2430ea..5f4509d4 100644
--- a/src/models/users.rs
+++ b/src/models/users.rs
@@ -1,4 +1,5 @@
 use bcrypt;
+use chrono::NaiveDateTime;
 use diesel::{self, QueryDsl, RunQueryDsl, ExpressionMethods, BelongingToDsl, PgConnection};
 use diesel::dsl::any;
 use rocket::request::{self, FromRequest, Request};
@@ -27,7 +28,8 @@ pub struct User {
     pub summary: String,
     pub email: Option<String>,
     pub hashed_password: Option<String>,
-    pub instance_id: i32
+    pub instance_id: i32,
+    pub creation_date: NaiveDateTime    
 }
 
 #[derive(Insertable)]
diff --git a/src/schema.rs b/src/schema.rs
index 182e7450..f61f6bc5 100644
--- a/src/schema.rs
+++ b/src/schema.rs
@@ -16,6 +16,7 @@ table! {
         outbox_url -> Varchar,
         inbox_url -> Varchar,
         instance_id -> Int4,
+        creation_date -> Timestamp,
     }
 }
 
@@ -27,6 +28,7 @@ table! {
         name -> Varchar,
         local -> Bool,
         blocked -> Bool,
+        creation_date -> Timestamp,
     }
 }
 
@@ -47,6 +49,7 @@ table! {
         content -> Text,
         published -> Bool,
         license -> Varchar,
+        creation_date -> Timestamp,
     }
 }
 
@@ -62,6 +65,7 @@ table! {
         email -> Nullable<Text>,
         hashed_password -> Nullable<Text>,
         instance_id -> Int4,
+        creation_date -> Timestamp,
     }
 }