diff --git a/src/ddsrt/include/dds/ddsrt/time.h b/src/ddsrt/include/dds/ddsrt/time.h
index a604a5e..61992f8 100644
--- a/src/ddsrt/include/dds/ddsrt/time.h
+++ b/src/ddsrt/include/dds/ddsrt/time.h
@@ -86,16 +86,6 @@ DDS_EXPORT dds_time_t dds_time(void);
  */
 DDS_EXPORT void dds_sleepfor (dds_duration_t reltime);
 
-/**
- * @brief Suspend execution of calling thread until absolute time n elapsed.
- *
- * Execution is suspended until the given absolute time elapsed. Should the
- * call be interrupted, it is re-entered with the remaining time.
- *
- * @param[in]  abstime  Absolute time in nanoseconds since UNIX Epoch.
- */
-DDS_EXPORT void dds_sleepuntil (dds_time_t abstime);
-
 /**
  * @brief Get high resolution, monotonic time.
  *
diff --git a/src/ddsrt/src/time.c b/src/ddsrt/src/time.c
index a3d474f..8dfa587 100644
--- a/src/ddsrt/src/time.c
+++ b/src/ddsrt/src/time.c
@@ -35,14 +35,6 @@ void dds_sleepfor(dds_duration_t n)
 }
 #endif
 
-void dds_sleepuntil(dds_time_t abstime)
-{
-  dds_time_t now = dds_time();
-
-  if (abstime > now)
-    dds_sleepfor (abstime - now);
-}
-
 size_t
 ddsrt_ctime(dds_time_t n, char *str, size_t size)
 {