diff --git a/ports/zephyr/CMakeLists.txt b/ports/zephyr/CMakeLists.txt
index bd5068faf3..39942bdc84 100644
--- a/ports/zephyr/CMakeLists.txt
+++ b/ports/zephyr/CMakeLists.txt
@@ -44,7 +44,6 @@ set(MICROPY_SOURCE_PORT
     modbluetooth_zephyr.c
     modmachine.c
     modusocket.c
-    modutime.c
     modzephyr.c
     modzsensor.c
     mphalport.c
diff --git a/ports/zephyr/modutime.c b/ports/zephyr/modutime.c
index fbcc9c6b09..c02460ba01 100644
--- a/ports/zephyr/modutime.c
+++ b/ports/zephyr/modutime.c
@@ -25,45 +25,14 @@
  * THE SOFTWARE.
  */
 
-#include "py/mpconfig.h"
-#if MICROPY_PY_UTIME
-
 #include <zephyr/zephyr.h>
 
-#include "py/runtime.h"
-#include "py/smallint.h"
-#include "py/mphal.h"
-#include "extmod/modutime.h"
+#include "py/obj.h"
 
-STATIC mp_obj_t mod_time_time(void) {
+STATIC mp_obj_t mp_utime_time_get(void) {
     /* The absence of FP support is deliberate. The Zephyr port uses
      * single precision floats so the fraction component will start to
      * lose precision on devices with a long uptime.
      */
     return mp_obj_new_int(k_uptime_get() / 1000);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_time_time_obj, mod_time_time);
-
-STATIC const mp_rom_map_elem_t mp_module_time_globals_table[] = {
-    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_utime) },
-    { MP_ROM_QSTR(MP_QSTR_sleep), MP_ROM_PTR(&mp_utime_sleep_obj) },
-    { MP_ROM_QSTR(MP_QSTR_sleep_ms), MP_ROM_PTR(&mp_utime_sleep_ms_obj) },
-    { MP_ROM_QSTR(MP_QSTR_sleep_us), MP_ROM_PTR(&mp_utime_sleep_us_obj) },
-    { MP_ROM_QSTR(MP_QSTR_time), MP_ROM_PTR(&mod_time_time_obj) },
-    { MP_ROM_QSTR(MP_QSTR_ticks_ms), MP_ROM_PTR(&mp_utime_ticks_ms_obj) },
-    { MP_ROM_QSTR(MP_QSTR_ticks_us), MP_ROM_PTR(&mp_utime_ticks_us_obj) },
-    { MP_ROM_QSTR(MP_QSTR_ticks_cpu), MP_ROM_PTR(&mp_utime_ticks_cpu_obj) },
-    { MP_ROM_QSTR(MP_QSTR_ticks_add), MP_ROM_PTR(&mp_utime_ticks_add_obj) },
-    { MP_ROM_QSTR(MP_QSTR_ticks_diff), MP_ROM_PTR(&mp_utime_ticks_diff_obj) },
-};
-
-STATIC MP_DEFINE_CONST_DICT(mp_module_time_globals, mp_module_time_globals_table);
-
-const mp_obj_module_t mp_module_time = {
-    .base = { &mp_type_module },
-    .globals = (mp_obj_dict_t *)&mp_module_time_globals,
-};
-
-MP_REGISTER_MODULE(MP_QSTR_utime, mp_module_time);
-
-#endif // MICROPY_PY_UTIME
diff --git a/ports/zephyr/mpconfigport.h b/ports/zephyr/mpconfigport.h
index 71836768a4..d3ef4375c7 100644
--- a/ports/zephyr/mpconfigport.h
+++ b/ports/zephyr/mpconfigport.h
@@ -87,7 +87,8 @@
 #define MICROPY_PY_UHASHLIB         (1)
 #define MICROPY_PY_UOS              (1)
 #define MICROPY_PY_UTIME            (1)
-#define MICROPY_PY_UTIME_MP_HAL     (1)
+#define MICROPY_PY_UTIME_TIME_TIME_NS (1)
+#define MICROPY_PY_UTIME_INCLUDEFILE "ports/zephyr/modutime.c"
 #define MICROPY_PY_ZEPHYR           (1)
 #define MICROPY_PY_ZSENSOR          (1)
 #define MICROPY_PY_SYS_MODULES      (0)