diff --git a/lib/util/time.h b/lib/util/time.h
index 8b61e41ae94..4870c84de62 100644
--- a/lib/util/time.h
+++ b/lib/util/time.h
@@ -72,6 +72,9 @@
 /* 64 bit time (100 nanosec) 1601 - cifs6.txt, section 3.5, page 30, 4 byte aligned */
 typedef uint64_t NTTIME;
 
+#define NTTIME_USEC (10UL)
+#define NTTIME_MSEC (1000UL * NTTIME_USEC)
+
 /**
  External access to time_t_min and time_t_max.
 **/