diff --git a/time_.h b/time_.h
index 6f57124..f6c010c 100644
--- a/time_.h
+++ b/time_.h
@@ -1,3 +1,27 @@
+/**
+    Copyright (C) powturbo 2013-2018
+    GPL v2 License
+  
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+    - homepage : https://sites.google.com/site/powturbo/
+    - github   : https://github.com/powturbo
+    - twitter  : https://twitter.com/powturbo
+    - email    : powturbo [_AT_] gmail [_DOT_] com
+**/
+//	    time_.h : time functions
 #include <time.h>
 
 #ifdef _WIN32