diff --git a/scripts/generate_vk_helpers.py b/scripts/generate_vk_helpers.py
index d5a37ec48..6f75dfed9 100755
--- a/scripts/generate_vk_helpers.py
+++ b/scripts/generate_vk_helpers.py
@@ -159,6 +159,8 @@ def get_device_cmds():
             requires=("VK_USE_PLATFORM_ANDROID_KHR",),
         ),
         None,
+        Cmd("vkGetCalibratedTimestampsEXT", requires=("VK_EXT_calibrated_timestamps",)),
+        None,
         Cmd("vkGetPastPresentationTimingGOOGLE"),
         None,
         Cmd("vkGetSwapchainCounterEXT", requires=("VK_EXT_display_control",)),
@@ -195,6 +197,11 @@ def get_instance_cmds():
         Cmd("vkEnumerateDeviceExtensionProperties"),
         Cmd("vkEnumerateDeviceLayerProperties"),
         None,
+        Cmd(
+            "vkGetPhysicalDeviceCalibrateableTimeDomainsEXT",
+            requires=("VK_EXT_calibrated_timestamps",),
+        ),
+        None,
         Cmd(
             "vkCreateDisplayPlaneSurfaceKHR", requires=("VK_USE_PLATFORM_DISPLAY_KHR",)
         ),
@@ -244,6 +251,7 @@ INSTANCE_EXTENSIONS_TO_CHECK = [
 ]
 DEVICE_EXTENSIONS_TO_CHECK = [
     "VK_KHR_timeline_semaphore",
+    "VK_EXT_calibrated_timestamps",
     "VK_EXT_global_priority",
     "VK_EXT_robustness2",
     "VK_GOOGLE_display_timing",
diff --git a/src/xrt/auxiliary/vk/vk_bundle_init.c b/src/xrt/auxiliary/vk/vk_bundle_init.c
index b8767b7e9..567a52dea 100644
--- a/src/xrt/auxiliary/vk/vk_bundle_init.c
+++ b/src/xrt/auxiliary/vk/vk_bundle_init.c
@@ -487,6 +487,7 @@ fill_in_has_device_extensions(struct vk_bundle *vk, struct u_string_list *ext_li
 	// beginning of GENERATED device extension code - do not modify - used by scripts
 	// Reset before filling out.
 	vk->has_KHR_timeline_semaphore = false;
+	vk->has_EXT_calibrated_timestamps = false;
 	vk->has_EXT_global_priority = false;
 	vk->has_EXT_robustness2 = false;
 	vk->has_GOOGLE_display_timing = false;
@@ -505,6 +506,13 @@ fill_in_has_device_extensions(struct vk_bundle *vk, struct u_string_list *ext_li
 		}
 #endif // defined(VK_KHR_timeline_semaphore)
 
+#if defined(VK_EXT_calibrated_timestamps)
+		if (strcmp(ext, VK_EXT_CALIBRATED_TIMESTAMPS_EXTENSION_NAME) == 0) {
+			vk->has_EXT_calibrated_timestamps = true;
+			continue;
+		}
+#endif // defined(VK_EXT_calibrated_timestamps)
+
 #if defined(VK_EXT_global_priority)
 		if (strcmp(ext, VK_EXT_GLOBAL_PRIORITY_EXTENSION_NAME) == 0) {
 			vk->has_EXT_global_priority = true;
diff --git a/src/xrt/auxiliary/vk/vk_function_loaders.c b/src/xrt/auxiliary/vk/vk_function_loaders.c
index 838fce20a..90e2e6b17 100644
--- a/src/xrt/auxiliary/vk/vk_function_loaders.c
+++ b/src/xrt/auxiliary/vk/vk_function_loaders.c
@@ -84,6 +84,11 @@ vk_get_instance_functions(struct vk_bundle *vk)
 	vk->vkEnumerateDeviceExtensionProperties              = GET_INS_PROC(vk, vkEnumerateDeviceExtensionProperties);
 	vk->vkEnumerateDeviceLayerProperties                  = GET_INS_PROC(vk, vkEnumerateDeviceLayerProperties);
 
+#if defined(VK_EXT_calibrated_timestamps)
+	vk->vkGetPhysicalDeviceCalibrateableTimeDomainsEXT    = GET_INS_PROC(vk, vkGetPhysicalDeviceCalibrateableTimeDomainsEXT);
+
+#endif // defined(VK_EXT_calibrated_timestamps)
+
 #if defined(VK_USE_PLATFORM_DISPLAY_KHR)
 	vk->vkCreateDisplayPlaneSurfaceKHR                    = GET_INS_PROC(vk, vkCreateDisplayPlaneSurfaceKHR);
 	vk->vkGetDisplayPlaneCapabilitiesKHR                  = GET_INS_PROC(vk, vkGetDisplayPlaneCapabilitiesKHR);
@@ -283,6 +288,11 @@ vk_get_device_functions(struct vk_bundle *vk)
 
 #endif // defined(VK_USE_PLATFORM_ANDROID_KHR)
 
+#if defined(VK_EXT_calibrated_timestamps)
+	vk->vkGetCalibratedTimestampsEXT                = GET_DEV_PROC(vk, vkGetCalibratedTimestampsEXT);
+
+#endif // defined(VK_EXT_calibrated_timestamps)
+
 	vk->vkGetPastPresentationTimingGOOGLE           = GET_DEV_PROC(vk, vkGetPastPresentationTimingGOOGLE);
 
 #if defined(VK_EXT_display_control)
diff --git a/src/xrt/auxiliary/vk/vk_helpers.h b/src/xrt/auxiliary/vk/vk_helpers.h
index f7e2119c3..0428d58f9 100644
--- a/src/xrt/auxiliary/vk/vk_helpers.h
+++ b/src/xrt/auxiliary/vk/vk_helpers.h
@@ -86,6 +86,7 @@ struct vk_bundle
 
 	// beginning of GENERATED device extension code - do not modify - used by scripts
 	bool has_KHR_timeline_semaphore;
+	bool has_EXT_calibrated_timestamps;
 	bool has_EXT_global_priority;
 	bool has_EXT_robustness2;
 	bool has_GOOGLE_display_timing;
@@ -142,6 +143,11 @@ struct vk_bundle
 	PFN_vkEnumerateDeviceExtensionProperties vkEnumerateDeviceExtensionProperties;
 	PFN_vkEnumerateDeviceLayerProperties vkEnumerateDeviceLayerProperties;
 
+#if defined(VK_EXT_calibrated_timestamps)
+	PFN_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT vkGetPhysicalDeviceCalibrateableTimeDomainsEXT;
+
+#endif // defined(VK_EXT_calibrated_timestamps)
+
 #if defined(VK_USE_PLATFORM_DISPLAY_KHR)
 	PFN_vkCreateDisplayPlaneSurfaceKHR vkCreateDisplayPlaneSurfaceKHR;
 	PFN_vkGetDisplayPlaneCapabilitiesKHR vkGetDisplayPlaneCapabilitiesKHR;
@@ -332,6 +338,11 @@ struct vk_bundle
 
 #endif // defined(VK_USE_PLATFORM_ANDROID_KHR)
 
+#if defined(VK_EXT_calibrated_timestamps)
+	PFN_vkGetCalibratedTimestampsEXT vkGetCalibratedTimestampsEXT;
+
+#endif // defined(VK_EXT_calibrated_timestamps)
+
 	PFN_vkGetPastPresentationTimingGOOGLE vkGetPastPresentationTimingGOOGLE;
 
 #if defined(VK_EXT_display_control)