diff --git a/milliseconds/milliseconds-tests.ts b/milliseconds/milliseconds-tests.ts
new file mode 100644
index 000000000..04fa7408f
--- /dev/null
+++ b/milliseconds/milliseconds-tests.ts
@@ -0,0 +1,9 @@
+/// <reference path="milliseconds.d.ts" />
+
+milliseconds.seconds(1)
+milliseconds.minutes(2)
+milliseconds.hours(3)
+milliseconds.days(4)
+milliseconds.weeks(5)
+milliseconds.month(6)
+milliseconds.years(7)
diff --git a/milliseconds/milliseconds.d.ts b/milliseconds/milliseconds.d.ts
new file mode 100644
index 000000000..144886e45
--- /dev/null
+++ b/milliseconds/milliseconds.d.ts
@@ -0,0 +1,20 @@
+// Type definitions for milliseconds
+// Project: http://npmjs.com/milliseconds
+// Definitions by: Elmar Burke <github.com/elmarburke>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+interface Milliseconds {
+	seconds(seconds: number): number
+	minutes(minutes: number): number
+	hours(hours: number): number
+	days(days: number): number
+	weeks(weeks: number): number
+	month(month: number): number
+	years(years: number): number
+}
+
+declare var milliseconds: Milliseconds
+
+declare module 'milliseconds' {
+	export = milliseconds
+}