diff --git a/unix/syscall_darwin.go b/unix/syscall_darwin.go
index 04042e4..a2e3688 100644
--- a/unix/syscall_darwin.go
+++ b/unix/syscall_darwin.go
@@ -416,6 +416,7 @@
 //sys	Chmod(path string, mode uint32) (err error)
 //sys	Chown(path string, uid int, gid int) (err error)
 //sys	Chroot(path string) (err error)
+//sys	ClockGettime(clockid int32, time *Timespec) (err error)
 //sys	Close(fd int) (err error)
 //sys	Dup(fd int) (nfd int, err error)
 //sys	Dup2(from int, to int) (err error)
diff --git a/unix/zsyscall_darwin_amd64.go b/unix/zsyscall_darwin_amd64.go
index b50178d..c142e33 100644
--- a/unix/zsyscall_darwin_amd64.go
+++ b/unix/zsyscall_darwin_amd64.go
@@ -943,6 +943,21 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func ClockGettime(clockid int32, time *Timespec) (err error) {
+	_, _, e1 := syscall_syscall(funcPC(libc_clock_gettime_trampoline), uintptr(clockid), uintptr(unsafe.Pointer(time)), 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func libc_clock_gettime_trampoline()
+
+//go:linkname libc_clock_gettime libc_clock_gettime
+//go:cgo_import_dynamic libc_clock_gettime clock_gettime "/usr/lib/libSystem.B.dylib"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Close(fd int) (err error) {
 	_, _, e1 := syscall_syscall(funcPC(libc_close_trampoline), uintptr(fd), 0, 0)
 	if e1 != 0 {
diff --git a/unix/zsyscall_darwin_amd64.s b/unix/zsyscall_darwin_amd64.s
index da9b900..1a39151 100644
--- a/unix/zsyscall_darwin_amd64.s
+++ b/unix/zsyscall_darwin_amd64.s
@@ -108,6 +108,8 @@
 	JMP	libc_chown(SB)
 TEXT ·libc_chroot_trampoline(SB),NOSPLIT,$0-0
 	JMP	libc_chroot(SB)
+TEXT ·libc_clock_gettime_trampoline(SB),NOSPLIT,$0-0
+	JMP	libc_clock_gettime(SB)
 TEXT ·libc_close_trampoline(SB),NOSPLIT,$0-0
 	JMP	libc_close(SB)
 TEXT ·libc_dup_trampoline(SB),NOSPLIT,$0-0