+// TODO: Documentation.
+
+// ----------------------------------------------------------------------------
+// MACROS
+
+#include "__NULL.h"
+
+#define CLOCKS_PER_SEC // TODO - personality?
+
+// ----------------------------------------------------------------------------
+// TYPES
+
+#include "__size_t.h"
+#include "__tm.h"
+
+typedef clock_t; // TODO - personality?
+typedef time_t; // TODO - personality?
+
+// ----------------------------------------------------------------------------
+// FUNCTIONS
+
+char * asctime( const struct tm * tptr );
+clock_t clock( void );
+char * ctime( const time_t * tod );
+double difftime( time_t t1, time_t t0 );
+struct tm * gmtime( const time_t * tod );
+struct tm * localtime( const time_t * tod );
+time_t mktime( struct tm * tptr );
+size_t strftime( char * restrict s, size_t n, const char * restrict format,
+ const struct tm * restrict tptr );
+time_t time( time_t * tod );