diff --git a/precise/precise-tests.ts b/precise/precise-tests.ts
new file mode 100644
index 000000000..029a69a3e
--- /dev/null
+++ b/precise/precise-tests.ts
@@ -0,0 +1,9 @@
+/// <reference path="precise.d.ts" />
+
+import precise = require("precise");
+
+var timer = precise().start();
+
+setTimeout(function () {
+  console.log(timer.stop().diff());
+}, 1000);
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diff --git a/precise/precise.d.ts b/precise/precise.d.ts
new file mode 100644
index 000000000..3caba0297
--- /dev/null
+++ b/precise/precise.d.ts
@@ -0,0 +1,34 @@
+// Type definitions for precise
+// Project: https://github.com/avoidwork/precise
+// Definitions by: Peter Harris <https://github.com/codeanimal>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module "precise" {
+  /**
+   * Precise factory
+   */
+  function _precise(): _precise.Precise;
+
+  module _precise {
+    class Precise {
+      constructor();
+
+      /**
+       * Starts a timer
+       */
+      start(): Precise;
+
+      /**
+       * Stops a timer
+       */
+      stop(): Precise;
+
+      /**
+       * Returns the nanoseconds from `start()` to `stop()`
+       */
+      diff(): number;
+    }
+  }
+
+  export = _precise;
+}
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