diff --git a/unified-runtime/include/ur_api.h b/unified-runtime/include/ur_api.h
index 8f840ccca112d..6e12509db9cdf 100644
--- a/unified-runtime/include/ur_api.h
+++ b/unified-runtime/include/ur_api.h
@@ -2870,7 +2870,8 @@ UR_APIEXPORT ur_result_t UR_APICALL urDeviceCreateWithNativeHandle(
     ur_device_handle_t *phDevice);
 
 ///////////////////////////////////////////////////////////////////////////////
-/// @brief Returns synchronized Host and Device global timestamps.
+/// @brief Returns synchronized Host and Device global timestamps in
+/// nanoseconds.
 ///
 /// @details
 ///     - The application may call this function from simultaneous threads for
diff --git a/unified-runtime/scripts/core/device.yml b/unified-runtime/scripts/core/device.yml
index 12281af495163..8d73f8078465b 100644
--- a/unified-runtime/scripts/core/device.yml
+++ b/unified-runtime/scripts/core/device.yml
@@ -857,7 +857,7 @@ returns:
         - "If the adapter has no underlying equivalent handle."
 --- #--------------------------------------------------------------------------
 type: function
-desc: "Returns synchronized Host and Device global timestamps."
+desc: "Returns synchronized Host and Device global timestamps in nanoseconds."
 class: $xDevice
 name: GetGlobalTimestamps
 decl: static
diff --git a/unified-runtime/source/loader/ur_libapi.cpp b/unified-runtime/source/loader/ur_libapi.cpp
index a7118181a5ea8..21ce6a6383d9e 100644
--- a/unified-runtime/source/loader/ur_libapi.cpp
+++ b/unified-runtime/source/loader/ur_libapi.cpp
@@ -1227,7 +1227,8 @@ ur_result_t UR_APICALL urDeviceCreateWithNativeHandle(
 }
 
 ///////////////////////////////////////////////////////////////////////////////
-/// @brief Returns synchronized Host and Device global timestamps.
+/// @brief Returns synchronized Host and Device global timestamps in
+/// nanoseconds.
 ///
 /// @details
 ///     - The application may call this function from simultaneous threads for
diff --git a/unified-runtime/source/ur_api.cpp b/unified-runtime/source/ur_api.cpp
index b5f2d422eb15a..c2727d14cc166 100644
--- a/unified-runtime/source/ur_api.cpp
+++ b/unified-runtime/source/ur_api.cpp
@@ -1090,7 +1090,8 @@ ur_result_t UR_APICALL urDeviceCreateWithNativeHandle(
 }
 
 ///////////////////////////////////////////////////////////////////////////////
-/// @brief Returns synchronized Host and Device global timestamps.
+/// @brief Returns synchronized Host and Device global timestamps in
+/// nanoseconds.
 ///
 /// @details
 ///     - The application may call this function from simultaneous threads for