diff --git a/firmware/include/time.h b/firmware/include/time.h
index e3517e725b..5213468662 100644
--- a/firmware/include/time.h
+++ b/firmware/include/time.h
@@ -1,33 +1,12 @@
 /*
  * time.h
  * 
- * Struct and function declarations for dealing with time.
+ * Struct declaration for dealing with time.
  */
 
 #ifndef _TIME_H_
 #define _TIME_H_
 
-#include "_ansi.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef NULL
-#define	NULL	0
-#endif
-
-#ifndef _CLOCKS_PER_SEC_
-#define _CLOCKS_PER_SEC_ 1000
-#endif
-
-#define CLOCKS_PER_SEC _CLOCKS_PER_SEC_
-#define CLK_TCK CLOCKS_PER_SEC
-#define __need_size_t
-#include <stddef.h>
-
-#include <sys/types.h>
-
 struct tm
 {
   int	tm_sec;
@@ -41,8 +20,5 @@ struct tm
   int	tm_isdst;
 };
 
-#ifdef __cplusplus
-}
-#endif
 #endif /* _TIME_H_ */