diff --git a/tests/15time.tests b/tests/15time.tests
index 2dcedbea9..fbdd631a9 100644
--- a/tests/15time.tests
+++ b/tests/15time.tests
@@ -1,8 +1,8 @@
 TESTING "Time conversion" ./test-time
 
 TEST "basic functionality" basic <<END
-err: ECHO: .*: 00:00:00.000
-err: ECHO: .*: 03:55:20.700
+err: ECHO: .*: 0:00:00.000
+err: ECHO: .*: 3:55:20.700
 END
 
 TEST "frame rate dependent calculations" fps <<END
diff --git a/tests/library/test-time.c b/tests/library/test-time.c
index 13137991b..3c1957645 100644
--- a/tests/library/test-time.c
+++ b/tests/library/test-time.c
@@ -117,7 +117,7 @@ TEST (ntsc_drop_frame)
 
   t = lumiera_build_time_ntsc_drop (FRAMES, SECONDS, MINUTES, HOURS);
 
-  CHECK (lumiera_time_millis (t)             == 487);
+  CHECK (lumiera_time_millis (t)             == 486);
   CHECK (lumiera_time_seconds (t)            == SECONDS);
   CHECK (lumiera_time_minutes (t)            == MINUTES);
   CHECK (lumiera_time_hours (t)              == HOURS);