--- Libc/Libc-1534.40.2/include/time.h
+++ Libc/Libc-583/include/time.h
@@ -64,14 +64,28 @@
 #define	_TIME_H_
 
 #include <_types.h>
-#include <sys/cdefs.h>
-#include <Availability.h>
-#ifndef UNIFDEF_DRIVERKIT
-#include <sys/_types/_clock_t.h>
-#include <sys/_types/_null.h>
-#include <sys/_types/_size_t.h>
-#include <sys/_types/_time_t.h>
-#include <sys/_types/_timespec.h>
+
+#define __need_struct_timespec
+#include <_structs.h>
+
+#ifndef NULL
+#define NULL __DARWIN_NULL
+#endif /* ! NULL */
+
+#ifndef	_CLOCK_T
+#define _CLOCK_T
+typedef	__darwin_clock_t	clock_t;
+#endif
+
+#ifndef	_SIZE_T
+#define	_SIZE_T
+typedef	__darwin_size_t		size_t;
+#endif
+
+#ifndef	_TIME_T
+#define	_TIME_T
+typedef	__darwin_time_t		time_t;
+#endif
 
 struct tm {
 	int	tm_sec;		/* seconds after the minute [0-60] */
@@ -83,16 +97,16 @@
 	int	tm_wday;	/* days since Sunday [0-6] */
 	int	tm_yday;	/* days since January 1 [0-365] */
 	int	tm_isdst;	/* Daylight Savings Time flag */
-	long	tm_gmtoff;	/* offset from UTC in seconds */
+	long	tm_gmtoff;	/* offset from CUT in seconds */
 	char	*tm_zone;	/* timezone abbreviation */
 };
 
 #if __DARWIN_UNIX03
-#define CLOCKS_PER_SEC  ((clock_t)1000000)	/* [XSI] */
+#define CLOCKS_PER_SEC  1000000	/* [XSI] */
 #else /* !__DARWIN_UNIX03 */
 #include <machine/_limits.h>	/* Include file containing CLK_TCK. */
 
-#define CLOCKS_PER_SEC  ((clock_t)(__DARWIN_CLK_TCK))
+#define CLOCKS_PER_SEC  (__DARWIN_CLK_TCK)
 #endif /* __DARWIN_UNIX03 */
 
 #ifndef _ANSI_SOURCE
@@ -112,12 +126,8 @@
 //End-Libc
 #endif /* __DARWIN_UNIX03 */
 extern int daylight;
-#else /* UNIFDEF_DRIVERKIT */
-#include <sys/_types/_time_t.h>
-#endif /* UNIFDEF_DRIVERKIT */
 
 __BEGIN_DECLS
-#ifndef UNIFDEF_DRIVERKIT
 char *asctime(const struct tm *);
 //Begin-Libc
 #ifndef LIBC_ALIAS_CLOCK
@@ -187,78 +197,13 @@
 //Begin-Libc
 #ifndef LIBC_ALIAS_NANOSLEEP
 //End-Libc
-int nanosleep(const struct timespec *__rqtp, struct timespec *__rmtp) __DARWIN_ALIAS_C(nanosleep);
+int nanosleep(const struct timespec *, struct timespec *) __DARWIN_ALIAS_C(nanosleep);
 //Begin-Libc
 #else /* LIBC_ALIAS_NANOSLEEP */
-int nanosleep(const struct timespec *__rqtp, struct timespec *__rmtp) LIBC_ALIAS_C(nanosleep);
+int nanosleep(const struct timespec *, struct timespec *) LIBC_ALIAS_C(nanosleep);
 #endif /* !LIBC_ALIAS_NANOSLEEP */
 //End-Libc
 #endif
-#endif /* UNIFDEF_DRIVERKIT */
-
-#if !defined(_DARWIN_FEATURE_CLOCK_GETTIME) || _DARWIN_FEATURE_CLOCK_GETTIME != 0
-#if __DARWIN_C_LEVEL >= 199309L
-#if __has_feature(enumerator_attributes)
-#define __CLOCK_AVAILABILITY __OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0) __TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0)
-#else
-#define __CLOCK_AVAILABILITY
-#endif
-
-typedef enum {
-_CLOCK_REALTIME __CLOCK_AVAILABILITY = 0,
-#define CLOCK_REALTIME _CLOCK_REALTIME
-_CLOCK_MONOTONIC __CLOCK_AVAILABILITY = 6,
-#define CLOCK_MONOTONIC _CLOCK_MONOTONIC
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-_CLOCK_MONOTONIC_RAW __CLOCK_AVAILABILITY = 4,
-#define CLOCK_MONOTONIC_RAW _CLOCK_MONOTONIC_RAW
-_CLOCK_MONOTONIC_RAW_APPROX __CLOCK_AVAILABILITY = 5,
-#define CLOCK_MONOTONIC_RAW_APPROX _CLOCK_MONOTONIC_RAW_APPROX
-_CLOCK_UPTIME_RAW __CLOCK_AVAILABILITY = 8,
-#define CLOCK_UPTIME_RAW _CLOCK_UPTIME_RAW
-_CLOCK_UPTIME_RAW_APPROX __CLOCK_AVAILABILITY = 9,
-#define CLOCK_UPTIME_RAW_APPROX _CLOCK_UPTIME_RAW_APPROX
-#endif
-_CLOCK_PROCESS_CPUTIME_ID __CLOCK_AVAILABILITY = 12,
-#define CLOCK_PROCESS_CPUTIME_ID _CLOCK_PROCESS_CPUTIME_ID
-_CLOCK_THREAD_CPUTIME_ID __CLOCK_AVAILABILITY = 16
-#define CLOCK_THREAD_CPUTIME_ID _CLOCK_THREAD_CPUTIME_ID
-} clockid_t;
-
-#ifndef UNIFDEF_DRIVERKIT
-__CLOCK_AVAILABILITY
-int clock_getres(clockid_t __clock_id, struct timespec *__res);
-
-__CLOCK_AVAILABILITY
-int clock_gettime(clockid_t __clock_id, struct timespec *__tp);
-
-#endif /* UNIFDEF_DRIVERKIT */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-__CLOCK_AVAILABILITY
-__uint64_t clock_gettime_nsec_np(clockid_t __clock_id);
-#endif
-
-#ifndef UNIFDEF_DRIVERKIT
-__OSX_AVAILABLE(10.12) __IOS_PROHIBITED
-__TVOS_PROHIBITED __WATCHOS_PROHIBITED
-int clock_settime(clockid_t __clock_id, const struct timespec *__tp);
-
-#endif /* UNIFDEF_DRIVERKIT */
-#undef __CLOCK_AVAILABILITY
-#endif /* __DARWIN_C_LEVEL */
-#endif /* _DARWIN_FEATURE_CLOCK_GETTIME */
-
-#ifndef UNIFDEF_DRIVERKIT
-#if (__DARWIN_C_LEVEL >= __DARWIN_C_FULL) || \
-        (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
-        (defined(__cplusplus) && __cplusplus >= 201703L)
-/* ISO/IEC 9899:201x 7.27.2.5 The timespec_get function */
-#define TIME_UTC	1	/* time elapsed since epoch */
-__API_AVAILABLE(macosx(10.15), ios(13.0), tvos(13.0), watchos(6.0))
-int timespec_get(struct timespec *ts, int base);
-#endif
-
-#endif /* UNIFDEF_DRIVERKIT */
 __END_DECLS
 
 #ifdef _USE_EXTENDED_LOCALES_