diff --git a/libs/libc/sched/CMakeLists.txt b/libs/libc/sched/CMakeLists.txt
index c447e575f20..8297eebce77 100644
--- a/libs/libc/sched/CMakeLists.txt
+++ b/libs/libc/sched/CMakeLists.txt
@@ -24,7 +24,6 @@ set(SRCS
     sched_getprioritymax.c
     sched_getprioritymin.c
     clock_getcpuclockid.c
-    clock_getres.c
     task_cancelpt.c
     task_setcancelstate.c
     task_setcanceltype.c
diff --git a/libs/libc/sched/Make.defs b/libs/libc/sched/Make.defs
index aa164356ddf..23aa8c0b2d5 100644
--- a/libs/libc/sched/Make.defs
+++ b/libs/libc/sched/Make.defs
@@ -23,9 +23,9 @@
 # Add the sched C files to the build
 
 CSRCS += sched_getprioritymax.c sched_getprioritymin.c
-CSRCS += clock_getcpuclockid.c clock_getres.c
 CSRCS += task_cancelpt.c task_setcancelstate.c task_setcanceltype.c
 CSRCS += task_testcancel.c task_gettid.c
+CSRCS += clock_getcpuclockid.c
 
 ifeq ($(CONFIG_SMP),y)
 CSRCS += sched_cpucount.c
diff --git a/sched/clock/CMakeLists.txt b/sched/clock/CMakeLists.txt
index 62c4346bf0d..d7740ca4777 100644
--- a/sched/clock/CMakeLists.txt
+++ b/sched/clock/CMakeLists.txt
@@ -23,6 +23,7 @@
 set(SRCS
     clock.c
     clock_initialize.c
+    clock_getres.c
     clock_settime.c
     clock_gettime.c
     clock_realtime2absticks.c
diff --git a/sched/clock/Make.defs b/sched/clock/Make.defs
index e61da4dbd9e..659abd6ea18 100644
--- a/sched/clock/Make.defs
+++ b/sched/clock/Make.defs
@@ -22,7 +22,7 @@
 
 CSRCS += clock.c clock_initialize.c clock_settime.c clock_gettime.c
 CSRCS += clock_systime_ticks.c clock_systime_timespec.c clock_sched_ticks.c
-CSRCS += clock_perf.c clock_realtime2absticks.c
+CSRCS += clock_perf.c clock_realtime2absticks.c clock_getres.c
 
 # Unless a driver with a more accurate version of up_*delay is enabled, always
 # include the base delay definition (busy-loop) as a minimum-viable product. We
diff --git a/libs/libc/sched/clock_getres.c b/sched/clock/clock_getres.c
similarity index 85%
rename from libs/libc/sched/clock_getres.c
rename to sched/clock/clock_getres.c
index 6d373175c64..b457edc2751 100644
--- a/libs/libc/sched/clock_getres.c
+++ b/sched/clock/clock_getres.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * libs/libc/sched/clock_getres.c
+ * sched/clock/clock_getres.c
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -24,14 +24,14 @@
  * Included Files
  ****************************************************************************/
 
-#include <nuttx/config.h>
-
 #include <stdint.h>
 #include <time.h>
 #include <errno.h>
 #include <debug.h>
 
 #include <nuttx/clock.h>
+#include <nuttx/fs/fs.h>
+#include <nuttx/timers/ptp_clock.h>
 
 /****************************************************************************
  * Public Functions
@@ -74,6 +74,23 @@ int clock_getres(clockid_t clock_id, struct timespec *res)
         sinfo("Returning res=(%d,%d)\n", (int)res->tv_sec,
                                          (int)res->tv_nsec);
         break;
+
+#ifdef CONFIG_PTP_CLOCK
+      case CLOCK_FD:
+        {
+          FAR struct file *filep;
+
+          ret = ptp_clockid_to_filep(clock_id, &filep);
+          if (ret < 0)
+            {
+              return ret;
+            }
+
+          ret = file_ioctl(filep, PTP_CLOCK_GETRES, res);
+          fs_putfilep(filep);
+        }
+        break;
+#endif
     }
 
   return ret;