diff --git a/tests/unit-tests/util/time-unit-test-clock.t.cpp b/tests/unit-tests/util/time-unit-test-clock.t.cpp
new file mode 100644
index 0000000..658f043
--- /dev/null
+++ b/tests/unit-tests/util/time-unit-test-clock.t.cpp
@@ -0,0 +1,155 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2015 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "util/time-unit-test-clock.hpp"
+#include "util/scheduler.hpp"
+
+#include "boost-test.hpp"
+#include <boost/lexical_cast.hpp>
+#include <thread>
+
+namespace ndn {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(UtilTimeUnitTestClock)
+
+class UnitTestTimeFixture
+{
+public:
+  UnitTestTimeFixture()
+    : steadyClock(make_shared<time::UnitTestSteadyClock>())
+    , systemClock(make_shared<time::UnitTestSystemClock>())
+  {
+    time::setCustomClocks(steadyClock, systemClock);
+  }
+
+  ~UnitTestTimeFixture()
+  {
+    time::setCustomClocks(nullptr, nullptr);
+  }
+
+public:
+  shared_ptr<time::UnitTestSteadyClock> steadyClock;
+  shared_ptr<time::UnitTestSystemClock> systemClock;
+};
+
+BOOST_FIXTURE_TEST_CASE(SystemClock, UnitTestTimeFixture)
+{
+  BOOST_CHECK_EQUAL(time::system_clock::now().time_since_epoch(),
+                    time::UnitTestClockTraits<time::system_clock>::getDefaultStartTime());
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+  BOOST_CHECK_EQUAL(time::system_clock::now().time_since_epoch(),
+                    time::UnitTestClockTraits<time::system_clock>::getDefaultStartTime());
+
+  steadyClock->advance(time::days(1));
+  BOOST_CHECK_EQUAL(time::system_clock::now().time_since_epoch(),
+                    time::UnitTestClockTraits<time::system_clock>::getDefaultStartTime());
+
+  systemClock->advance(time::days(1));
+  BOOST_CHECK_GT(time::system_clock::now().time_since_epoch(),
+                 time::UnitTestClockTraits<time::system_clock>::getDefaultStartTime());
+
+  time::system_clock::TimePoint referenceTime =
+    time::fromUnixTimestamp(time::milliseconds(1390966967032LL));
+  BOOST_CHECK_GT(time::system_clock::now(), referenceTime);
+
+  systemClock->setNow(referenceTime.time_since_epoch());
+  BOOST_CHECK_EQUAL(time::system_clock::now(), referenceTime);
+
+  BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(time::system_clock::now()),
+                    "1390966967032000000 nanoseconds since unit test clock advancements");
+
+  BOOST_CHECK_EQUAL(time::toIsoString(referenceTime), "20140129T034247.032000");
+  BOOST_CHECK_EQUAL(time::toString(referenceTime), "2014-01-29 03:42:47");
+  BOOST_CHECK_EQUAL(time::toString(referenceTime), "2014-01-29 03:42:47");
+
+  // Unfortunately, not all systems has lv_LV locale installed :(
+  // BOOST_CHECK_EQUAL(time::toString(referenceTime, "%Y. gada %d. %B",
+  //                                  std::locale("lv_LV.UTF-8")),
+  //                   "2014. gada 29. Janvāris");
+
+  BOOST_CHECK_EQUAL(time::toString(referenceTime, "%Y -- %d -- %B",
+                                   std::locale("C")),
+                    "2014 -- 29 -- January");
+
+  BOOST_CHECK_EQUAL(time::fromIsoString("20140129T034247.032000"), referenceTime);
+  BOOST_CHECK_EQUAL(time::fromIsoString("20140129T034247.032000Z"), referenceTime);
+  BOOST_CHECK_EQUAL(time::fromString("2014-01-29 03:42:47"),
+                    time::fromUnixTimestamp(time::seconds(1390966967)));
+
+  // Unfortunately, not all systems has lv_LV locale installed :(
+  // BOOST_CHECK_EQUAL(time::fromString("2014. gada 29. Janvāris", "%Y. gada %d. %B",
+  //                                    std::locale("lv_LV.UTF-8")),
+  //                   time::fromUnixTimestamp(time::seconds(1390953600)));
+
+  BOOST_CHECK_EQUAL(time::fromString("2014 -- 29 -- January", "%Y -- %d -- %B",
+                                     std::locale("C")),
+                    time::fromUnixTimestamp(time::seconds(1390953600)));
+}
+
+BOOST_FIXTURE_TEST_CASE(SteadyClock, UnitTestTimeFixture)
+{
+  BOOST_CHECK_EQUAL(time::steady_clock::now().time_since_epoch(),
+                    time::steady_clock::duration::zero());
+
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
+  BOOST_CHECK_EQUAL(time::steady_clock::now().time_since_epoch(),
+                    time::steady_clock::duration::zero());
+
+  systemClock->advance(time::days(36500));
+  BOOST_CHECK_EQUAL(time::steady_clock::now().time_since_epoch(),
+                    time::steady_clock::duration::zero());
+
+  steadyClock->advance(time::nanoseconds(100));
+  BOOST_CHECK_EQUAL(time::steady_clock::now().time_since_epoch(), time::nanoseconds(100));
+
+  steadyClock->advance(time::microseconds(100));
+  BOOST_CHECK_EQUAL(time::steady_clock::now().time_since_epoch(), time::nanoseconds(100100));
+
+  steadyClock->setNow(time::nanoseconds(100));
+  BOOST_CHECK_EQUAL(time::steady_clock::now().time_since_epoch(), time::nanoseconds(100));
+
+  BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(time::steady_clock::now()),
+                    "100 nanoseconds since unit test clock advancements");
+}
+
+BOOST_FIXTURE_TEST_CASE(Scheduler, UnitTestTimeFixture)
+{
+  boost::asio::io_service io;
+  ndn::Scheduler scheduler(io);
+
+  bool hasFired = false;
+  scheduler.scheduleEvent(time::seconds(100), [&] { hasFired = true; });
+
+  io.poll();
+  BOOST_CHECK_EQUAL(hasFired, false);
+
+  steadyClock->advance(time::seconds(100));
+
+  io.poll();
+  BOOST_CHECK_EQUAL(hasFired, true);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace ndn