diff --git a/sources/custom/Global.cs b/sources/custom/Global.cs
new file mode 100644
index 0000000000..640ddd2f28
--- /dev/null
+++ b/sources/custom/Global.cs
@@ -0,0 +1,40 @@
+//   Copyright (C) 2017 Thibault Saunier <thibault.saunier@osg-samsung.com>
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+// 02110-1301  USA
+
+namespace Gst {
+    using System;
+    using System.Runtime.InteropServices;
+
+    partial class Global
+    {
+        public static string TimeFormat(ulong time) {
+            return (time / (Gst.Constants.SECOND * 60 * 60)) + ":" +
+                (time / (Gst.Constants.SECOND * 60)) % 60 + ":" +
+                (time / (Gst.Constants.SECOND)) % 60 + ":" +
+                (time % 60);
+        }
+
+        public static string TimeFormat(long time) {
+            return (time / (Gst.Constants.SECOND * 60 * 60)) + ":" +
+                (time / (Gst.Constants.SECOND * 60)) % 60 + ":" +
+                (time / (Gst.Constants.SECOND)) % 60 + ":" +
+                (time % 60);
+        }
+
+    }
+}
+
diff --git a/sources/gstreamer-sharp.metadata b/sources/gstreamer-sharp.metadata
index 2b0a85f750..a9b447ec9b 100644
--- a/sources/gstreamer-sharp.metadata
+++ b/sources/gstreamer-sharp.metadata
@@ -2,7 +2,7 @@
 
 <!--
 Copyright (C) 2013  Stephan Sundermann <stephansundermann@gmail.com>
- 
+
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
diff --git a/sources/meson.build b/sources/meson.build
index b16ce9ab24..ff226abba5 100644
--- a/sources/meson.build
+++ b/sources/meson.build
@@ -30,7 +30,8 @@ sources = [
     'custom/TagList.cs',
     'custom/Value.cs',
     'custom/Version.cs',
-    'custom/VideoGLUploadMeta.cs'
+    'custom/VideoGLUploadMeta.cs',
+    'custom/Global.cs',
 ]
 
 subdir('generated')