diff --git a/BUILD.gn b/BUILD.gn
index 6c99a60..582e515 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -236,6 +236,7 @@
     "update_manager/staging_utils.cc",
     "update_manager/state_factory.cc",
     "update_manager/update_manager.cc",
+    "update_manager/update_time_restrictions_monitor.cc",
     "update_manager/update_time_restrictions_policy_impl.cc",
     "update_manager/weekly_time.cc",
     "update_status_utils.cc",
@@ -537,6 +538,7 @@
       "update_manager/real_updater_provider_unittest.cc",
       "update_manager/staging_utils_unittest.cc",
       "update_manager/update_manager_unittest.cc",
+      "update_manager/update_time_restrictions_monitor_unittest.cc",
       "update_manager/update_time_restrictions_policy_impl_unittest.cc",
       "update_manager/variable_unittest.cc",
       "update_manager/weekly_time_unittest.cc",
diff --git a/update_manager/fake_device_policy_provider.h b/update_manager/fake_device_policy_provider.h
index 87691cb..762bfc5 100644
--- a/update_manager/fake_device_policy_provider.h
+++ b/update_manager/fake_device_policy_provider.h
@@ -138,7 +138,7 @@
   FakeVariable<std::string> var_auto_launched_kiosk_app_id_{
       "auto_launched_kiosk_app_id", kVariableModePoll};
   FakeVariable<WeeklyTimeIntervalVector> var_disallowed_time_intervals_{
-      "disallowed_time_intervals", kVariableModePoll};
+      "disallowed_time_intervals", kVariableModeAsync};
   FakeVariable<ChannelDowngradeBehavior> var_channel_downgrade_behavior_{
       "channel_downgrade_behavior", kVariableModePoll};
   FakeVariable<base::Version> var_device_minimum_version_{
diff --git a/update_manager/update_time_restrictions_monitor.cc b/update_manager/update_time_restrictions_monitor.cc
new file mode 100644
index 0000000..00e6ec3
--- /dev/null
+++ b/update_manager/update_time_restrictions_monitor.cc
@@ -0,0 +1,132 @@
+//
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "update_engine/update_manager/update_time_restrictions_monitor.h"
+
+#include <base/bind.h>
+#include <base/time/time.h>
+
+#include "update_engine/common/system_state.h"
+
+using base::TimeDelta;
+using brillo::MessageLoop;
+using chromeos_update_engine::SystemState;
+
+namespace chromeos_update_manager {
+
+namespace {
+
+const WeeklyTimeInterval* FindNextNearestInterval(
+    const WeeklyTimeIntervalVector& intervals, const WeeklyTime& now) {
+  const WeeklyTimeInterval* result_interval = nullptr;
+  // As we are dealing with weekly time here, the maximum duration can be one
+  // week.
+  TimeDelta duration_till_next_interval = TimeDelta::FromDays(7);
+  for (const auto& interval : intervals) {
+    if (interval.InRange(now)) {
+      return &interval;
+    }
+    const TimeDelta current_duration = now.GetDurationTo(interval.start());
+    if (current_duration < duration_till_next_interval) {
+      result_interval = &interval;
+      duration_till_next_interval = current_duration;
+    }
+  }
+  return result_interval;
+}
+
+WeeklyTime Now() {
+  return WeeklyTime::FromTime(SystemState::Get()->clock()->GetWallclockTime());
+}
+
+}  // namespace
+
+UpdateTimeRestrictionsMonitor::UpdateTimeRestrictionsMonitor(
+    DevicePolicyProvider* device_policy_provider, Delegate* delegate)
+    : evaluation_context_(/* evaluation_timeout = */ TimeDelta::Max(),
+                          /* expiration_timeout = */ TimeDelta::Max(),
+                          /* unregister_cb = */ {}),
+      device_policy_provider_(device_policy_provider),
+      delegate_(delegate),
+      weak_ptr_factory_(this) {
+  if (device_policy_provider_ != nullptr && delegate_ != nullptr)
+    StartMonitoring();
+}
+
+UpdateTimeRestrictionsMonitor::~UpdateTimeRestrictionsMonitor() {
+  StopMonitoring();
+}
+
+void UpdateTimeRestrictionsMonitor::StartMonitoring() {
+  DCHECK(device_policy_provider_);
+  const WeeklyTimeIntervalVector* new_intervals = evaluation_context_.GetValue(
+      device_policy_provider_->var_disallowed_time_intervals());
+  if (new_intervals && !new_intervals->empty())
+    WaitForRestrictedIntervalStarts(*new_intervals);
+
+  const bool is_registered = evaluation_context_.RunOnValueChangeOrTimeout(
+      base::Bind(&UpdateTimeRestrictionsMonitor::OnIntervalsChanged,
+                 base::Unretained(this)));
+  DCHECK(is_registered);
+}
+
+void UpdateTimeRestrictionsMonitor::WaitForRestrictedIntervalStarts(
+    const WeeklyTimeIntervalVector& restricted_time_intervals) {
+  DCHECK(!restricted_time_intervals.empty());
+
+  const WeeklyTimeInterval* current_interval =
+      FindNextNearestInterval(restricted_time_intervals, Now());
+  if (current_interval == nullptr) {
+    LOG(WARNING) << "Could not find next nearest restricted interval.";
+    return;
+  }
+
+  // If |current_interval| happens right now, set delay to zero.
+  const TimeDelta duration_till_start =
+      current_interval->InRange(Now())
+          ? TimeDelta::FromMicroseconds(0)
+          : Now().GetDurationTo(current_interval->start());
+  LOG(INFO) << "Found restricted interval starting at "
+            << (SystemState::Get()->clock()->GetWallclockTime() +
+                duration_till_start);
+
+  timeout_event_ = MessageLoop::current()->PostDelayedTask(
+      FROM_HERE,
+      base::Bind(&UpdateTimeRestrictionsMonitor::HandleRestrictedIntervalStarts,
+                 weak_ptr_factory_.GetWeakPtr()),
+      duration_till_start);
+}
+
+void UpdateTimeRestrictionsMonitor::HandleRestrictedIntervalStarts() {
+  timeout_event_ = MessageLoop::kTaskIdNull;
+  if (delegate_)
+    delegate_->OnRestrictedIntervalStarts();
+}
+
+void UpdateTimeRestrictionsMonitor::StopMonitoring() {
+  MessageLoop::current()->CancelTask(timeout_event_);
+  timeout_event_ = MessageLoop::kTaskIdNull;
+}
+
+void UpdateTimeRestrictionsMonitor::OnIntervalsChanged() {
+  DCHECK(!evaluation_context_.is_expired());
+
+  StopMonitoring();
+  evaluation_context_.ResetEvaluation();
+  StartMonitoring();
+}
+
+}  // namespace chromeos_update_manager
diff --git a/update_manager/update_time_restrictions_monitor.h b/update_manager/update_time_restrictions_monitor.h
new file mode 100644
index 0000000..034ac87
--- /dev/null
+++ b/update_manager/update_time_restrictions_monitor.h
@@ -0,0 +1,105 @@
+//
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#ifndef UPDATE_ENGINE_UPDATE_MANAGER_UPDATE_TIME_RESTRICTIONS_MONITOR_H_
+#define UPDATE_ENGINE_UPDATE_MANAGER_UPDATE_TIME_RESTRICTIONS_MONITOR_H_
+
+#include <memory>
+
+#include <base/memory/weak_ptr.h>
+#include <brillo/message_loops/message_loop.h>
+
+#include "update_engine/update_manager/device_policy_provider.h"
+#include "update_engine/update_manager/evaluation_context.h"
+#include "update_engine/update_manager/weekly_time.h"
+
+namespace chromeos_update_manager {
+
+// Represents a monitor tracking start of restricted time intervals during which
+// update download is not allowed. It reads |var_disallowed_time_intervals|,
+// chooses the next interval according to current time, awaits its start and
+// notifies the delegate. If the chosen interval is already happening, the
+// monitor notifies immediately. The monitor will never notify the delegate
+// while the current list of restricted intervals is empty.
+//
+// The monitor detects changes in the restricted intervals and handles the
+// change with following cases:
+// 1. No restricted time intervals or none of the intervals is in progress -> no
+//    new restricted intervals or none of the new intervals matches the current
+//    time.
+//    The monitor starts tracking the next interval from the new ones, if any.
+// 2. No restricted time intervals or none of the intervals is in progress ->
+//    there is a new interval matching current time.
+//    The monitor shall pick this new interval and notify the delegate
+//    immediately about the start of the restricted interval.
+class UpdateTimeRestrictionsMonitor {
+ public:
+  // Interface to handle start of a restricted time interval.
+  class Delegate {
+   public:
+    virtual ~Delegate() = default;
+
+    virtual void OnRestrictedIntervalStarts() = 0;
+  };
+
+  // Creates an instance and starts monitoring the next nearest restricted time
+  // interval if present. If no intervals are available yet the monitor will be
+  // idle until intervals list changes.
+  UpdateTimeRestrictionsMonitor(DevicePolicyProvider* device_policy_provider,
+                                Delegate* delegate);
+
+  UpdateTimeRestrictionsMonitor(const UpdateTimeRestrictionsMonitor&) = delete;
+  UpdateTimeRestrictionsMonitor& operator=(
+      const UpdateTimeRestrictionsMonitor&) = delete;
+
+  ~UpdateTimeRestrictionsMonitor();
+
+  bool IsMonitoringInterval() {
+    return timeout_event_ != brillo::MessageLoop::kTaskIdNull;
+  }
+
+ private:
+  // Starts monitoring the start of nearest restricted time interval if present
+  // and any change in restricted time intervals from policy.
+  void StartMonitoring();
+  void WaitForRestrictedIntervalStarts(
+      const WeeklyTimeIntervalVector& restricted_time_intervals);
+
+  // Called when current time lies within a restricted interval.
+  void HandleRestrictedIntervalStarts();
+
+  // Stop monotoring any restricted intervals.
+  void StopMonitoring();
+
+  // Called upon change of restricted intervals.
+  void OnIntervalsChanged();
+
+  // To access restricted time intervals from |device_policy_provider_|.
+  EvaluationContext evaluation_context_;
+
+  DevicePolicyProvider* const device_policy_provider_;
+  Delegate* const delegate_;
+
+  // The TaskId returned by the message loop identifying the timeout callback.
+  // Used for cancelling the timeout callback.
+  brillo::MessageLoop::TaskId timeout_event_{brillo::MessageLoop::kTaskIdNull};
+
+  base::WeakPtrFactory<UpdateTimeRestrictionsMonitor> weak_ptr_factory_;
+};
+
+}  // namespace chromeos_update_manager
+
+#endif  // UPDATE_ENGINE_UPDATE_MANAGER_UPDATE_TIME_RESTRICTIONS_MONITOR_H_
diff --git a/update_manager/update_time_restrictions_monitor_unittest.cc b/update_manager/update_time_restrictions_monitor_unittest.cc
new file mode 100644
index 0000000..2e474e2
--- /dev/null
+++ b/update_manager/update_time_restrictions_monitor_unittest.cc
@@ -0,0 +1,279 @@
+//
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include <memory>
+
+#include <base/optional.h>
+#include <base/time/time.h>
+#include <base/test/simple_test_clock.h>
+#include <brillo/message_loops/fake_message_loop.h>
+#include <brillo/message_loops/message_loop_utils.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include "update_engine/cros/fake_system_state.h"
+#include "update_engine/update_manager/fake_state.h"
+#include "update_engine/update_manager/update_time_restrictions_monitor.h"
+
+using brillo::FakeMessageLoop;
+using brillo::MessageLoop;
+using brillo::MessageLoopRunMaxIterations;
+using chromeos_update_engine::FakeSystemState;
+
+namespace chromeos_update_manager {
+
+namespace {
+
+constexpr base::TimeDelta kDurationOffset = base::TimeDelta::FromMinutes(1);
+constexpr base::TimeDelta kHourDuration = base::TimeDelta::FromHours(1);
+constexpr base::TimeDelta kMinuteDuration = base::TimeDelta::FromMinutes(1);
+// Initial time: Monday, May 4th 2020 8:13 AM before interval.
+constexpr base::Time::Exploded kInitialTimeBeforeInterval{
+    2020, 5, 0, 4, 10, 13, 0, 0};
+// Initial time: Monday, May 4th 2020 10:20 AM within interval.
+constexpr base::Time::Exploded kInitialTimeWithinInterval{
+    2020, 5, 0, 4, 10, 20, 0, 0};
+const int current_restricted_interval_index = 0;
+
+const WeeklyTimeIntervalVector kTestOneDisallowedTimeIntervals{
+    // Monday 8:15 AM to Monday 9:30 PM.
+    WeeklyTimeInterval(WeeklyTime(1, kHourDuration * 8 + kMinuteDuration * 15),
+                       WeeklyTime(1, kHourDuration * 9 + kMinuteDuration * 30)),
+};
+
+const WeeklyTimeIntervalVector kTestTwoDisallowedTimeIntervals{
+    // Monday 10:15 AM to Monday 3:30 PM.
+    WeeklyTimeInterval(
+        WeeklyTime(1, kHourDuration * 10 + kMinuteDuration * 15),
+        WeeklyTime(1, kHourDuration * 15 + kMinuteDuration * 30)),
+    // Wednesday 8:30 PM to Thursday 8:40 AM.
+    WeeklyTimeInterval(WeeklyTime(3, kHourDuration * 20 + kMinuteDuration * 30),
+                       WeeklyTime(4, kHourDuration * 8 + kMinuteDuration * 40)),
+};
+
+}  // namespace
+
+class MockUpdateTimeRestrictionsMonitorDelegate
+    : public UpdateTimeRestrictionsMonitor::Delegate {
+ public:
+  virtual ~MockUpdateTimeRestrictionsMonitorDelegate() = default;
+
+  MOCK_METHOD0(OnRestrictedIntervalStarts, void());
+};
+
+class UmUpdateTimeRestrictionsMonitorTest : public ::testing::Test {
+ protected:
+  UmUpdateTimeRestrictionsMonitorTest() {
+    fake_loop_.SetAsCurrent();
+    FakeSystemState::CreateInstance();
+  }
+
+  void TearDown() override { EXPECT_FALSE(fake_loop_.PendingTasks()); }
+
+  bool SetNow(const base::Time::Exploded& exploded_now) {
+    base::Time now;
+    if (!base::Time::FromLocalExploded(exploded_now, &now))
+      return false;
+
+    test_clock_.SetNow(now);
+    FakeSystemState::Get()->fake_clock()->SetWallclockTime(now);
+    return true;
+  }
+
+  void AdvanceAfterTimestamp(const WeeklyTime& timestamp) {
+    const WeeklyTime now = WeeklyTime::FromTime(test_clock_.Now());
+    const base::TimeDelta duration =
+        now.GetDurationTo(timestamp) + kDurationOffset;
+    test_clock_.Advance(duration);
+    FakeSystemState::Get()->fake_clock()->SetWallclockTime(test_clock_.Now());
+  }
+
+  void VerifyExpectationsOnDelegate() {
+    testing::Mock::VerifyAndClearExpectations(&mock_delegate_);
+  }
+
+  void UpdateRestrictedIntervals(const WeeklyTimeIntervalVector& policy_value) {
+    auto* policy_variable =
+        fake_state_.device_policy_provider()->var_disallowed_time_intervals();
+    policy_variable->reset(new WeeklyTimeIntervalVector(policy_value));
+    policy_variable->NotifyValueChanged();
+  }
+
+  bool IsMonitoringInterval() {
+    return monitor_.has_value() && monitor_.value().IsMonitoringInterval();
+  }
+
+  void BuildMonitorAndVerify(const WeeklyTimeIntervalVector* policy_value,
+                             bool expect_delegate_called,
+                             bool expect_monitoring) {
+    if (expect_delegate_called)
+      EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(1);
+    else
+      EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(0);
+
+    fake_state_.device_policy_provider()
+        ->var_disallowed_time_intervals()
+        ->reset(policy_value != nullptr
+                    ? new WeeklyTimeIntervalVector(*policy_value)
+                    : nullptr);
+    monitor_.emplace(fake_state_.device_policy_provider(), &mock_delegate_);
+    if (expect_delegate_called)
+      MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+    VerifyExpectationsOnDelegate();
+
+    if (expect_monitoring)
+      EXPECT_TRUE(IsMonitoringInterval());
+    else
+      EXPECT_FALSE(IsMonitoringInterval());
+  }
+
+  base::SimpleTestClock test_clock_;
+  FakeMessageLoop fake_loop_{&test_clock_};
+  FakeState fake_state_;
+  MockUpdateTimeRestrictionsMonitorDelegate mock_delegate_;
+  base::Optional<UpdateTimeRestrictionsMonitor> monitor_;
+};
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest, PolicyIsNotSet) {
+  BuildMonitorAndVerify(
+      nullptr, /*expect_delegate_called=*/false, /*expect_monitoring=*/false);
+}
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest, PolicyHasEmptyIntervalList) {
+  WeeklyTimeIntervalVector empty_policy;
+  BuildMonitorAndVerify(&empty_policy,
+                        /*expect_delegate_called=*/false,
+                        /*expect_monitoring=*/false);
+}
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest,
+       CurrentTimeOutsideOfRestrictedInterval) {
+  ASSERT_TRUE(SetNow(kInitialTimeBeforeInterval));
+  BuildMonitorAndVerify(&kTestTwoDisallowedTimeIntervals,
+                        /*expect_delegate_called=*/false,
+                        /*expect_monitoring=*/true);
+
+  // Monitor should only notify start when passing start of interval.
+  EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(1);
+  AdvanceAfterTimestamp(
+      kTestTwoDisallowedTimeIntervals[current_restricted_interval_index]
+          .start());
+  MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+  VerifyExpectationsOnDelegate();
+}
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest,
+       CurrentTimeWithinRestrictedInterval) {
+  // Monitor should notify start when it is built with current
+  // time within interval.
+  ASSERT_TRUE(SetNow(kInitialTimeWithinInterval));
+  BuildMonitorAndVerify(&kTestTwoDisallowedTimeIntervals,
+                        /*expect_delegate_called=*/true,
+                        /*expect_monitoring=*/false);
+}
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest,
+       PolicyChangeFromNotSetToOutsideInterval) {
+  // Build monitor with empty initial list of intervals.
+  BuildMonitorAndVerify(
+      nullptr, /*expect_delegate_called=*/false, /*expect_monitoring=*/false);
+
+  // Monitor should not do any notification right after intervals update.
+  ASSERT_TRUE(SetNow(kInitialTimeBeforeInterval));
+  EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(0);
+  UpdateRestrictedIntervals(kTestTwoDisallowedTimeIntervals);
+  MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+  VerifyExpectationsOnDelegate();
+  EXPECT_TRUE(IsMonitoringInterval());
+
+  // Advance time within new interval and check that notification happen.
+  EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(1);
+  AdvanceAfterTimestamp(
+      kTestTwoDisallowedTimeIntervals[current_restricted_interval_index]
+          .start());
+  MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+  VerifyExpectationsOnDelegate();
+}
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest,
+       PolicyChangeFromNotSetToWithinInterval) {
+  // Build monitor with empty initial list of intervals.
+  BuildMonitorAndVerify(
+      nullptr, /*expect_delegate_called=*/false, /*expect_monitoring=*/false);
+
+  // Advance time inside upcoming new interval and update the intervals.
+  // Monitor should immediately notify about started interval.
+  ASSERT_TRUE(SetNow(kInitialTimeWithinInterval));
+  EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(1);
+  UpdateRestrictedIntervals(kTestTwoDisallowedTimeIntervals);
+  MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+  VerifyExpectationsOnDelegate();
+}
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest,
+       PolicyChangeFromNotSetToEmptyInterval) {
+  BuildMonitorAndVerify(
+      nullptr, /*expect_delegate_called=*/false, /*expect_monitoring=*/false);
+
+  EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(0);
+  UpdateRestrictedIntervals(WeeklyTimeIntervalVector());
+  MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+  VerifyExpectationsOnDelegate();
+  EXPECT_FALSE(IsMonitoringInterval());
+}
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest,
+       PolicyChangeFromOneOutsideIntervalToAnother) {
+  // Build monitor with current time outside the intervals.
+  BuildMonitorAndVerify(&kTestTwoDisallowedTimeIntervals,
+                        /*expect_delegate_called=*/false,
+                        /*expect_monitoring=*/true);
+
+  // Update the intervals to outide of current time and no notification should
+  // happen yet.
+  EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(0);
+  UpdateRestrictedIntervals(kTestOneDisallowedTimeIntervals);
+  MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+  VerifyExpectationsOnDelegate();
+
+  // Advance time within new interval. Monitor should notify about started
+  // interval.
+  EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(1);
+  AdvanceAfterTimestamp(
+      kTestOneDisallowedTimeIntervals[current_restricted_interval_index]
+          .start());
+  MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+  VerifyExpectationsOnDelegate();
+}
+
+TEST_F(UmUpdateTimeRestrictionsMonitorTest,
+       PolicyChangeFromOutsideIntervalToWithin) {
+  ASSERT_TRUE(SetNow(kInitialTimeWithinInterval));
+
+  // Build monitor with current time outside the intervals.
+  BuildMonitorAndVerify(&kTestOneDisallowedTimeIntervals,
+                        /*expect_delegate_called=*/false,
+                        /*expect_monitoring=*/true);
+
+  // Update interval such that current time is within it. Monitor should notify
+  // about started interval.
+  EXPECT_CALL(mock_delegate_, OnRestrictedIntervalStarts()).Times(1);
+  UpdateRestrictedIntervals(kTestTwoDisallowedTimeIntervals);
+  MessageLoopRunMaxIterations(MessageLoop::current(), 10);
+  VerifyExpectationsOnDelegate();
+}
+
+}  // namespace chromeos_update_manager