diff --git a/include/time.h b/include/time.h
index 4566d84..ca79696 100644
--- a/include/time.h
+++ b/include/time.h
@@ -2,9 +2,6 @@
 #ifndef __TIME_H__
 #define __TIME_H__
 
-typedef uint64_t time_t;
-typedef uint64_t suseconds_t;
-
 struct tm {
     int		tm_sec;
     int		tm_min;
@@ -17,17 +14,6 @@ struct tm {
     int		tm_isdst;
 };
 
-struct timeval
-{
-    time_t	tv_sec;
-    suseconds_t	tv_usec;
-};
-
-struct timezone {
-    int		tz_minuteswest;
-    int		tz_dsttime;
-};
-
 time_t time(time_t *t);
 char *asctime_r(const struct tm *tm, char *buf);
 char *asctime(const struct tm *tm);
@@ -39,10 +25,5 @@ struct tm *localtime(const time_t *timep);
 struct tm *localtime_r(const time_t *timep, struct tm *result);
 time_t mktime(struct tm *tm);
 
-int gettimeofday(struct timeval *tv, struct timezone *tz);
-
-// XXX: Not implemented
-int settimeofday(const struct timeval *tv, const struct timezone *tz);
-
 #endif /* __TIME_H__ */
 
diff --git a/lib/libc/time.c b/lib/libc/time.c
index db97342..55fe559 100644
--- a/lib/libc/time.c
+++ b/lib/libc/time.c
@@ -4,6 +4,8 @@
 #include <stdio.h>
 #include <time.h>
 
+#include <sys/time.h>
+
 #include <syscall.h>
 
 #define TZ_OFFSET_SECS 0
diff --git a/sys/include/time.h b/sys/include/time.h
index 981b827..faa578b 100644
--- a/sys/include/time.h
+++ b/sys/include/time.h
@@ -2,7 +2,23 @@
 #ifndef __SYS_TIME_H__
 #define __SYS_TIME_H__
 
+#include <sys/types.h>
 
+struct timeval
+{
+    time_t	tv_sec;
+    suseconds_t	tv_usec;
+};
+
+struct timezone {
+    int		tz_minuteswest;
+    int		tz_dsttime;
+};
+
+int gettimeofday(struct timeval *tv, struct timezone *tz);
+
+// XXX: Not implemented
+int settimeofday(const struct timeval *tv, const struct timezone *tz);
 
 #endif /* __SYS_TIME_H__ */
 
diff --git a/sys/include/types.h b/sys/include/types.h
index 3216f5f..bd3c7f4 100644
--- a/sys/include/types.h
+++ b/sys/include/types.h
@@ -22,6 +22,9 @@ typedef int64_t fpos_t;
 
 typedef uint64_t ino_t;
 
+typedef uint64_t time_t;
+typedef uint64_t suseconds_t;
+
 #define NULL ((void *)0)
 
 #endif /* __SYS_TYPES_H__ */