Fix date formats

dominicbetts · dominicbetts · commit 2a06e17f401a · 2018-01-30T18:07:10.000Z
diff --git a/articles/iot-hub/iot-hub-devguide-c2d-guidance.md b/articles/iot-hub/iot-hub-devguide-c2d-guidance.md
@@ -13,7 +13,7 @@ ms.devlang: multiple
 ms.topic: article
 ms.tgt_pltfrm: na
 ms.workload: na
-ms.date: 29/01/2018
+ms.date: 01/29/2018
 ms.author: elioda
 
 ---
diff --git a/articles/iot-hub/iot-hub-devguide-d2c-guidance.md b/articles/iot-hub/iot-hub-devguide-d2c-guidance.md
@@ -13,7 +13,7 @@ ms.devlang: multiple
 ms.topic: article
 ms.tgt_pltfrm: na
 ms.workload: na
-ms.date: 29/01/2018
+ms.date: 01/29/2018
 ms.author: elioda
 
 ---
diff --git a/articles/iot-hub/iot-hub-devguide-device-twins.md b/articles/iot-hub/iot-hub-devguide-device-twins.md
@@ -13,7 +13,7 @@ ms.devlang: multiple
 ms.topic: article
 ms.tgt_pltfrm: na
 ms.workload: na
-ms.date: 29/01/2018
+ms.date: 01/29/2018
 ms.author: elioda
 ms.custom: H1Hack27Feb2017
 
