diff --git a/moment-round/index.d.ts b/moment-round/index.d.ts
new file mode 100644
index 0000000000..e68181ac34
--- /dev/null
+++ b/moment-round/index.d.ts
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+// Type definitions for moment-round 1.0
+// Project: https://github.com/WebDevTmas/moment-round
+// Definitions by: Jacob Baskin <https://github.com/jacobbaskin>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+import * as moment from 'moment';
+
+declare module 'moment' {
+    interface Moment {
+        round(precision: number, key: string, direction: 'round' | 'ceil' | 'floor'): Moment;
+        ceil(precision: number, key: string): Moment;
+        floor(precision: number, key: string): Moment;
+    }
+}
diff --git a/moment-round/moment-round-tests.ts b/moment-round/moment-round-tests.ts
new file mode 100644
index 0000000000..6925966365
--- /dev/null
+++ b/moment-round/moment-round-tests.ts
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+import * as moment from 'moment';
+
+var m = new moment(); // 2015-06-18 15:30:19
+moment.round(5, 'seconds'); // 2015-06-18 15:30:20
+moment.ceil(3, 'minutes'); // 2015-06-18 15:33:00
+moment.floor(16, 'hours'); // 2015-06-18 00:00:00
+moment.ceil(21, 'hours'); // 2015-06-18 21:00:00
+moment.ceil(20, 'hours'); // 2015-06-19 00:00:00
diff --git a/moment-round/tsconfig.json b/moment-round/tsconfig.json
new file mode 100644
index 0000000000..7054df992f
--- /dev/null
+++ b/moment-round/tsconfig.json
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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "es6",
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "moment-round-tests.ts"
+    ]
+}
diff --git a/moment-round/tslint.json b/moment-round/tslint.json
new file mode 100644
index 0000000000..377cc837d4
--- /dev/null
+++ b/moment-round/tslint.json
@@ -0,0 +1 @@
+{ "extends": "../tslint.json" }