diff --git a/tests/asynctest.nim b/tests/asynctest.nim
index 7c6a4afd..01c38716 100644
--- a/tests/asynctest.nim
+++ b/tests/asynctest.nim
@@ -1,3 +1,22 @@
 import pkg/asynctest/chronos/unittest
+import times, strutils
+
+type
+  TimedOutputFormatter* = ref object of ConsoleOutputFormatter
+    testStartTime: float
+
+method testStarted*(formatter: TimedOutputFormatter, testName: string) {.gcsafe.} =
+  formatter.testStartTime = epochTime()
+
+method testEnded*(formatter: TimedOutputFormatter, testResult: TestResult) =
+  let time = epochTime() - formatter.testStartTime
+  let timeStr = time.formatFloat(ffDecimal, precision = 8)
+  # There doesn't seem to be an easy way to override the echo in the base class
+  # without changing std/unittest, or copying most of the code here.
+  # We use a second line as a workaround.
+  procCall formatter.ConsoleOutputFormatter.testEnded(testResult)
+  echo "      time = ", timeStr, " sec"
+
+addOutputFormatter(TimedOutputFormatter())
 
 export unittest