diff --git a/libs/ardour/ardour/ardour.h b/libs/ardour/ardour/ardour.h
index 6fba7992f0..9f20a466b3 100644
--- a/libs/ardour/ardour/ardour.h
+++ b/libs/ardour/ardour/ardour.h
@@ -83,8 +83,6 @@ namespace ARDOUR {
 	LIBARDOUR_API bool translations_are_enabled ();
 	LIBARDOUR_API bool set_translations_enabled (bool);
 
-	LIBARDOUR_API microseconds_t get_microseconds ();
-
 	LIBARDOUR_API void setup_fpu ();
 	LIBARDOUR_API std::vector<SyncSource> get_available_sync_options();
 
diff --git a/libs/ardour/ardour/types.h b/libs/ardour/ardour/types.h
index 11d784079d..9938f3e999 100644
--- a/libs/ardour/ardour/types.h
+++ b/libs/ardour/ardour/types.h
@@ -47,6 +47,7 @@
 #include "temporal/types.h"
 
 #include "pbd/id.h"
+#include "pbd/microseconds.h"
 
 #include "evoral/Range.h"
 
@@ -77,7 +78,7 @@ typedef float    Sample;
 typedef float    pan_t;
 typedef float    gain_t;
 typedef uint32_t layer_t;
-typedef uint64_t microseconds_t;
+typedef PBD::microseconds_t microseconds_t;
 typedef uint32_t pframes_t;
 
 /* rebind Temporal position types into ARDOUR namespace */
diff --git a/libs/ardour/globals.cc b/libs/ardour/globals.cc
index 91dc245661..ffc8b346b4 100644
--- a/libs/ardour/globals.cc
+++ b/libs/ardour/globals.cc
@@ -957,28 +957,6 @@ clock_gettime (int /*clk_id*/, struct timespec* t)
 }
 #endif
 
-microseconds_t
-ARDOUR::get_microseconds ()
-{
-#ifdef PLATFORM_WINDOWS
-	microseconds_t ret = 0;
-	LARGE_INTEGER  freq, time;
-
-	if (QueryPerformanceFrequency (&freq))
-		if (QueryPerformanceCounter (&time))
-			ret = (microseconds_t) ((time.QuadPart * 1000000) / freq.QuadPart);
-
-	return ret;
-#else
-	struct timespec ts;
-	if (clock_gettime (CLOCK_MONOTONIC, &ts) != 0) {
-		/* EEEK! */
-		return 0;
-	}
-	return (microseconds_t)ts.tv_sec * 1000000 + (ts.tv_nsec / 1000);
-#endif
-}
-
 /** Return the number of bits per sample for a given sample format.
  *
  * This is closely related to sndfile_data_width() but does NOT