diff --git a/tests/extmod/time_ms_us.py b/tests/extmod/time_ms_us.py
new file mode 100644
index 0000000000..2078f1bb53
--- /dev/null
+++ b/tests/extmod/time_ms_us.py
@@ -0,0 +1,12 @@
+import sys
+import utime
+try:
+    utime.sleep_ms
+except AttributeError:
+    print("SKIP")
+    sys.exit()
+
+utime.sleep_ms(1)
+utime.sleep_us(1)
+print(utime.ticks_diff(utime.ticks_ms(), utime.ticks_ms()) <= 1)
+print(utime.ticks_diff(utime.ticks_us(), utime.ticks_us()) <= 500)
diff --git a/tests/extmod/time_ms_us.py.exp b/tests/extmod/time_ms_us.py.exp
new file mode 100644
index 0000000000..dbde422651
--- /dev/null
+++ b/tests/extmod/time_ms_us.py.exp
@@ -0,0 +1,2 @@
+True
+True