diff --git a/include/util/time.h b/include/util/time.h
index a24656a9..d4b5cca7 100644
--- a/include/util/time.h
+++ b/include/util/time.h
@@ -1,9 +1,16 @@
 #ifndef UTIL_TIME_H
 #define UTIL_TIME_H
 
+#include <time.h>
+
 /**
  * Get the current time, in milliseconds.
  */
 uint32_t get_current_time_msec(void);
 
+/**
+ * Convert a timespec to milliseconds.
+ */
+int64_t timespec_to_msec(const struct timespec *a);
+
 #endif
diff --git a/types/tablet_v2/wlr_tablet_v2_tool.c b/types/tablet_v2/wlr_tablet_v2_tool.c
index 041139b5..30a3bfae 100644
--- a/types/tablet_v2/wlr_tablet_v2_tool.c
+++ b/types/tablet_v2/wlr_tablet_v2_tool.c
@@ -4,6 +4,7 @@
 
 #include "tablet-unstable-v2-protocol.h"
 #include "util/array.h"
+#include "util/time.h"
 #include <assert.h>
 #include <stdlib.h>
 #include <types/wlr_tablet_v2.h>
@@ -301,16 +302,10 @@ static ssize_t tablet_tool_button_update(struct wlr_tablet_v2_tablet_tool *tool,
 	return i;
 }
 
-static inline int64_t timespec_to_msec(const struct timespec *a) {
-	return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
-}
-
 static void send_tool_frame(void *data) {
 	struct wlr_tablet_tool_client_v2 *tool = data;
 
-	struct timespec now;
-	clock_gettime(CLOCK_MONOTONIC, &now);
-	zwp_tablet_tool_v2_send_frame(tool->resource, timespec_to_msec(&now));
+	zwp_tablet_tool_v2_send_frame(tool->resource, get_current_time_msec());
 	tool->frame_source = NULL;
 }
 
diff --git a/types/wlr_surface.c b/types/wlr_surface.c
index 5cf119a8..d741d119 100644
--- a/types/wlr_surface.c
+++ b/types/wlr_surface.c
@@ -11,6 +11,7 @@
 #include <wlr/util/log.h>
 #include <wlr/util/region.h>
 #include "util/signal.h"
+#include "util/time.h"
 
 #define CALLBACK_VERSION 1
 #define SURFACE_VERSION 4
@@ -1062,10 +1063,6 @@ void wlr_surface_send_leave(struct wlr_surface *surface,
 	}
 }
 
-static inline int64_t timespec_to_msec(const struct timespec *a) {
-	return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
-}
-
 void wlr_surface_send_frame_done(struct wlr_surface *surface,
 		const struct timespec *when) {
 	struct wl_resource *resource, *tmp;
diff --git a/util/time.c b/util/time.c
index b2333921..a47fc613 100644
--- a/util/time.c
+++ b/util/time.c
@@ -4,8 +4,12 @@
 
 #include "util/time.h"
 
+int64_t timespec_to_msec(const struct timespec *a) {
+	return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
+}
+
 uint32_t get_current_time_msec(void) {
 	struct timespec now;
 	clock_gettime(CLOCK_MONOTONIC, &now);
-	return now.tv_sec * 1000 + now.tv_nsec / 1000000;
+	return timespec_to_msec(&now);
 }