diff --git a/include/polarssl/timing.h b/include/polarssl/timing.h
new file mode 100644
index 0000000..32e53e8
--- /dev/null
+++ b/include/polarssl/timing.h
@@ -0,0 +1,50 @@
+/**
+ * \file timing.h
+ */
+#ifndef XYSSL_TIMING_H
+#define XYSSL_TIMING_H
+
+/**
+ * \brief          timer structure
+ */
+struct hr_time
+{
+    unsigned char opaque[32];
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int alarmed;
+
+/**
+ * \brief          Return the CPU cycle counter value
+ */
+unsigned long hardclock( void );
+
+/**
+ * \brief          Return the elapsed time in milliseconds
+ *
+ * \param val      points to a timer structure
+ * \param reset    if set to 1, the timer is restarted
+ */
+unsigned long get_timer( struct hr_time *val, int reset );
+
+/**
+ * \brief          Setup an alarm clock
+ *
+ * \param seconds  delay before the "alarmed" flag is set
+ */
+void set_alarm( int seconds );
+
+/**
+ * \brief          Sleep for a certain amount of time
+ */
+void m_sleep( int milliseconds );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* timing.h */