diff --git a/ChangeLog.md b/ChangeLog.md
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--- /dev/null
+++ b/ChangeLog.md
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+# Changelog for simple-media-timestamp
+
+## v0.1.0.0
+
+* Add `Time` and `Range` types.
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
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+Copyright Daniel Firth (c) 2021
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Daniel Firth nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
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+# simple-media-timestamp
diff --git a/simple-media-timestamp.cabal b/simple-media-timestamp.cabal
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--- /dev/null
+++ b/simple-media-timestamp.cabal
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+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.34.4.
+--
+-- see: https://github.com/sol/hpack
+
+name:           simple-media-timestamp
+version:        0.1.0.0
+synopsis:       A very simple timestamp.
+category:       Media
+author:         Daniel Firth
+maintainer:     dan.firth@homotopic.tech
+copyright:      dan.firth@homotopic.tech
+license:        MIT
+license-file:   LICENSE
+build-type:     Simple
+extra-source-files:
+    README.md
+    ChangeLog.md
+
+source-repository head
+  type: git
+  location: https://gitlab.com/homotopic-tech/simple-media-timestamp
+
+library
+  exposed-modules:
+      Media.Timestamp
+  other-modules:
+      Paths_simple_media_timestamp
+  hs-source-dirs:
+      src
+  build-depends:
+      base >=4.7 && <5
+  default-language: Haskell2010
diff --git a/src/Media/Timestamp.hs b/src/Media/Timestamp.hs
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--- /dev/null
+++ b/src/Media/Timestamp.hs
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+-- |
+--   Module    : Media.Timestamp
+--   License   : MIT
+--   Stability : experimental
+--
+-- A simple timestamp type.
+module Media.Timestamp
+  ( Time (..),
+    Range (..),
+  )
+where
+
+-- | Timestamp data type.
+--
+-- @since 0.1.0.0
+data Time = Time
+  { hour :: Int,
+    minutes :: Int,
+    seconds :: Int,
+    milliseconds :: Int
+  }
+  deriving (Eq, Ord, Show)
+
+-- | Interval of two timestamps.
+--
+-- @since 0.1.0.0
+data Range = Range
+  { from :: Time,
+    to :: Time
+  }
+  deriving (Eq, Ord, Show)