diff --git a/kitty/monotonic.h b/kitty/monotonic.h
index db6a4254b..cb91dcb3f 100644
--- a/kitty/monotonic.h
+++ b/kitty/monotonic.h
@@ -13,6 +13,7 @@
 #define MONOTONIC_T_MAX INT64_MAX
 #define MONOTONIC_T_MIN INT64_MIN
 #define MONOTONIC_T_1e6 1000000ll
+#define MONOTONIC_T_1e3 1000ll
 #define MONOTONIC_T_1e9 1000000000ll
 
 typedef int64_t monotonic_t;
@@ -42,6 +43,12 @@ monotonic_t_to_ms(monotonic_t time) {
     return (int)(time / MONOTONIC_T_1e6);
 }
 
+static inline int
+monotonic_t_to_us(monotonic_t time) {
+    return (int)(time / MONOTONIC_T_1e3);
+}
+
+
 static inline double
 monotonic_t_to_s_double(monotonic_t time) {
     return ((double)time) / 1e9;