diff --git a/frameworks/ans/native/src/reminder_helper.cpp b/frameworks/ans/native/src/reminder_helper.cpp
index 3197916aec4e4f7c1608785cb4759518bdf28f8e..39fe3105db9e4289f0e28c590c0e1fc8497bd39b 100644
--- a/frameworks/ans/native/src/reminder_helper.cpp
+++ b/frameworks/ans/native/src/reminder_helper.cpp
@@ -29,7 +29,6 @@ namespace Notification {
 ErrCode ReminderHelper::PublishReminder(ReminderRequest &reminder)
 {
     ANSR_LOGI("PublishReminder start");
-    
     NotificationSlot slot(reminder.GetSlotType());
     NotificationHelper::AddNotificationSlot(slot);
     return DelayedSingleton<AnsNotification>::GetInstance()->PublishReminder(reminder);
diff --git a/frameworks/ans/native/src/reminder_request.cpp b/frameworks/ans/native/src/reminder_request.cpp
index 2984b3143b4d01f4d7b4a22c9844bbad7ffa2cc9..06dc80e8652330cd5f6ce93a5598604ad9a598c3 100644
--- a/frameworks/ans/native/src/reminder_request.cpp
+++ b/frameworks/ans/native/src/reminder_request.cpp
@@ -261,11 +261,11 @@ bool ReminderRequest::HandleTimeZoneChange(
             ANSR_LOGE("Get now time error");
             return false;
         }
-        if (newZoneTriggerTime <= (static_cast<uint64_t>(now))) {
+        if (newZoneTriggerTime <= GetDurationSinceEpochInMilli(now)) {
             snoozeTimesDynamic_ = 0;
             showImmediately = true;
         } else {
-            SetTriggerTimeInMilli(newZoneTriggerTime * MILLI_SECONDS);
+            SetTriggerTimeInMilli(newZoneTriggerTime);
             showImmediately = false;
         }
     }
@@ -367,7 +367,8 @@ bool ReminderRequest::OnTimeZoneChange()
     struct tm *oriTime = gmtime(&oldZoneTriggerTime);
     time_t newZoneTriggerTime = mktime(oriTime);
     uint64_t nextTriggerTime = PreGetNextTriggerTimeIgnoreSnooze(true, false);
-    return HandleTimeZoneChange(oldZoneTriggerTime, newZoneTriggerTime, nextTriggerTime);
+    return HandleTimeZoneChange(
+        triggerTimeInMilli_, GetDurationSinceEpochInMilli(newZoneTriggerTime), nextTriggerTime);
 }
 
 ReminderRequest& ReminderRequest::SetMaxScreenWantAgentInfo(
@@ -849,16 +850,23 @@ bool ReminderRequest::ReadFromParcel(Parcel &parcel)
         info.title = title;
         actionButtonMap_.insert(std::pair<ActionButtonType, ActionButtonInfo>(type, info));
     }
-    InitNotificationRequest();
+    if (!InitNotificationRequest()) {
+        return false;
+    }
     return true;
 }
 
-void ReminderRequest::InitNotificationRequest()
+bool ReminderRequest::InitNotificationRequest()
 {
     ANSR_LOGI("Init notification");
-    notificationRequest_ = new NotificationRequest(notificationId_);
+    notificationRequest_ = new (std::nothrow) NotificationRequest(notificationId_);
+    if (notificationRequest_ == nullptr) {
+        ANSR_LOGE("Failed to create notification.");
+        return false;
+    }
     displayContent_ = content_;
     AddActionButtons(true);
+    return true;
 }
 
 bool ReminderRequest::IsAlerting() const
@@ -866,6 +874,18 @@ bool ReminderRequest::IsAlerting() const
     return (state_ & REMINDER_STATUS_ALERTING) != 0;
 }
 
+uint64_t ReminderRequest::GetDurationSinceEpochInMilli(const time_t target)
+{
+    auto tarEndTimePoint = std::chrono::system_clock::from_time_t(target);
+    auto tarDuration = std::chrono::duration_cast<std::chrono::milliseconds>(tarEndTimePoint.time_since_epoch());
+    int64_t tarDate = tarDuration.count();
+    if (tarDate < 0) {
+        ANSR_LOGW("tarDuration is less than 0.");
+        return INVALID_LONG_LONG_VALUE;
+    }
+    return static_cast<uint64_t>(tarDate);
+}
+
 std::string ReminderRequest::GetDateTimeInfo(const time_t &timeInSecond) const
 {
     return GetTimeInfoInner(timeInSecond, TimeFormat::YMDHMS);
@@ -879,7 +899,7 @@ uint64_t ReminderRequest::GetNowInstantMilli() const
         ANSR_LOGE("Get now time error");
         return 0;
     }
-    return static_cast<uint64_t>(now) * MILLI_SECONDS;
+    return GetDurationSinceEpochInMilli(now);
 }
 
 std::string ReminderRequest::GetShowTime(const uint64_t showTime) const
@@ -1101,6 +1121,9 @@ bool ReminderRequest::UpdateNextReminder(const bool &force)
 
 void ReminderRequest::UpdateNotificationCommon()
 {
+    time_t now;
+    (void)time(&now);  // unit is seconds.
+    notificationRequest_->SetDeliveryTime(static_cast<int64_t>(now) * MILLI_SECONDS);
     notificationRequest_->SetLabel(NOTIFICATION_LABEL);
     notificationRequest_->SetShowDeliveryTime(true);
     notificationRequest_->SetTapDismissed(true);
@@ -1114,9 +1137,10 @@ void ReminderRequest::UpdateNotificationCommon()
         || reminderType_ == ReminderRequest::ReminderType::ALARM) {
         notificationRequest_->SetUnremovable(true);
     }
-    time_t now;
-    (void)time(&now);  // unit is seconds.
-    notificationRequest_->SetDeliveryTime(static_cast<int64_t>(now) * MILLI_SECONDS);
+    auto flags = std::make_shared<NotificationFlags>();
+    flags->SetSoundEnabled(NotificationConstant::FlagStatus::CLOSE);
+    flags->SetVibrationEnabled(NotificationConstant::FlagStatus::CLOSE);
+    notificationRequest_->SetFlags(flags);
 }
 
 void ReminderRequest::UpdateNotificationContent(const bool &setSnooze)
diff --git a/frameworks/ans/native/src/reminder_request_alarm.cpp b/frameworks/ans/native/src/reminder_request_alarm.cpp
index 2c0de6b23f3ab63f6925b6b1916eac72e34f86a4..67ee01eae407a0e6521d66b4acba8c8bea2ede85 100644
--- a/frameworks/ans/native/src/reminder_request_alarm.cpp
+++ b/frameworks/ans/native/src/reminder_request_alarm.cpp
@@ -122,6 +122,7 @@ uint64_t ReminderRequestAlarm::GetNextTriggerTime(bool forceToGetNext) const
     tar.tm_hour = hour_;
     tar.tm_min = minute_;
     tar.tm_sec = 0;
+    tar.tm_isdst = -1;
 
     const time_t target = mktime(&tar);
     int8_t nextDayInterval = GetNextAlarm(now, target);
@@ -151,7 +152,7 @@ uint64_t ReminderRequestAlarm::GetNextTriggerTime(bool forceToGetNext) const
     if (static_cast<int64_t>(nextTriggerTime) <= 0) {
         return 0;
     }
-    return static_cast<uint64_t>(nextTriggerTime) * ReminderRequest::MILLI_SECONDS;
+    return ReminderRequest::GetDurationSinceEpochInMilli(nextTriggerTime);
 }
 
 int8_t ReminderRequestAlarm::GetNextAlarm(const time_t now, const time_t target) const
@@ -273,7 +274,7 @@ bool ReminderRequestAlarm::Marshalling(Parcel &parcel) const
 ReminderRequestAlarm *ReminderRequestAlarm::Unmarshalling(Parcel &parcel)
 {
     ANSR_LOGD("New alarm");
-    auto objptr = new ReminderRequestAlarm();
+    auto objptr = new (std::nothrow) ReminderRequestAlarm();
     if ((objptr != nullptr) && !objptr->ReadFromParcel(parcel)) {
         delete objptr;
         objptr = nullptr;
diff --git a/frameworks/ans/native/src/reminder_request_calendar.cpp b/frameworks/ans/native/src/reminder_request_calendar.cpp
index df2a62a70b916060e68cc49a9bbcb46432b8e747..b74a4a4d60d9dbab2841cacab840982994ff16dc 100644
--- a/frameworks/ans/native/src/reminder_request_calendar.cpp
+++ b/frameworks/ans/native/src/reminder_request_calendar.cpp
@@ -113,6 +113,7 @@ uint8_t ReminderRequestCalendar::GetNextDay(
             setTime.tm_hour = target.tm_hour;
             setTime.tm_min = target.tm_min;
             setTime.tm_sec = target.tm_sec;
+            setTime.tm_isdst = -1;
 
             struct tm nowTime;
             nowTime.tm_year = now.tm_year;
@@ -121,6 +122,8 @@ uint8_t ReminderRequestCalendar::GetNextDay(
             nowTime.tm_hour = now.tm_hour;
             nowTime.tm_min = now.tm_min;
             nowTime.tm_sec = now.tm_sec;
+            nowTime.tm_isdst = -1;
+
             if (mktime(&nowTime) >= mktime(&setTime)) {
                 continue;
             } else {
@@ -151,12 +154,18 @@ uint64_t ReminderRequestCalendar::GetNextTriggerTime() const
     tarTime.tm_hour = hour_;
     tarTime.tm_min = minute_;
     tarTime.tm_sec = 0;
+    tarTime.tm_isdst = -1;
 
+    ANSR_LOGD("Now time is: %{public}s", GetDateTimeInfo(now).c_str());
     if (!(repeatMonth_ > 0 && repeatDay_ > 0)) {
+        ANSR_LOGD("tarTime: %{public}d-%{public}d-%{public}d %{public}d:%{public}d:%{public}d",
+            tarTime.tm_year, tarTime.tm_mon, tarTime.tm_mday, tarTime.tm_hour, tarTime.tm_min, tarTime.tm_sec);
         const time_t target = mktime(&tarTime);
-        if (now <= target) {
-            triggerTimeInMilli = static_cast<uint64_t>(target) * MILLI_SECONDS;
-            ANSR_LOGD("Now time is: %{public}s", GetDateTimeInfo(now).c_str());
+        if (target == -1) {
+            ANSR_LOGW("mktime return error.");
+        }
+        if (now < target) {
+            triggerTimeInMilli = ReminderRequest::GetDurationSinceEpochInMilli(target);
             ANSR_LOGD("Next calendar time:%{public}s", GetDateTimeInfo(target).c_str());
         }
         return triggerTimeInMilli;
@@ -206,12 +215,16 @@ uint64_t ReminderRequestCalendar::GetTimeInstantMilli(
     tar.tm_hour = hour;
     tar.tm_min = minute;
     tar.tm_sec = second;
+    tar.tm_isdst = -1;
+
+    ANSR_LOGD("tar: %{public}d-%{public}d-%{public}d %{public}d:%{public}d:%{public}d",
+        tar.tm_year, tar.tm_mon, tar.tm_mday, tar.tm_hour, tar.tm_min, tar.tm_sec);
     const time_t target = mktime(&tar);
-    if (target < 0) {
-        ANSR_LOGW("GetTImeInstantMilli less than 0.");
+    if (target == -1) {
+        ANSR_LOGW("mktime return error.");
         return INVALID_LONG_LONG_VALUE;
     }
-    return static_cast<uint64_t>(target) * MILLI_SECONDS;
+    return ReminderRequest::GetDurationSinceEpochInMilli(target);
 }
 
 void ReminderRequestCalendar::InitDateTime()
@@ -222,6 +235,7 @@ void ReminderRequestCalendar::InitDateTime()
     dateTime_.tm_hour = hour_;
     dateTime_.tm_min = minute_;
     dateTime_.tm_sec = second_;
+    dateTime_.tm_isdst = -1;
 }
 
 void ReminderRequestCalendar::InitDateTime(const tm &dateTime)
@@ -232,6 +246,7 @@ void ReminderRequestCalendar::InitDateTime(const tm &dateTime)
     dateTime_.tm_hour = dateTime.tm_hour;
     dateTime_.tm_min = dateTime.tm_min;
     dateTime_.tm_sec = dateTime.tm_sec;
+    dateTime_.tm_isdst = -1;
 }
 
 bool ReminderRequestCalendar::IsRepeatReminder() const
diff --git a/frameworks/ans/native/src/reminder_request_timer.cpp b/frameworks/ans/native/src/reminder_request_timer.cpp
index 4fc99ed1697bd1c8997ae1e76f725ae963eaac35..d0fd4337b2432cc0974cfcb9d5103ad071705014 100644
--- a/frameworks/ans/native/src/reminder_request_timer.cpp
+++ b/frameworks/ans/native/src/reminder_request_timer.cpp
@@ -31,7 +31,7 @@ ReminderRequestTimer::ReminderRequestTimer(uint64_t countDownTimeInSeconds)
     time_t now;  // unit is seconds.
     (void)time(&now);
     ReminderRequest::SetTriggerTimeInMilli(
-        (static_cast<uint64_t>(now) + countDownTimeInSeconds_) * ReminderRequest::MILLI_SECONDS);
+        ReminderRequest::GetDurationSinceEpochInMilli(now) + countDownTimeInSeconds_ * ReminderRequest::MILLI_SECONDS);
     sptr<MiscServices::TimeServiceClient> timer = MiscServices::TimeServiceClient::GetInstance();
     firstRealTimeInMilliSeconds_ = timer->GetBootTimeMs();
 }
@@ -88,7 +88,7 @@ void ReminderRequestTimer::UpdateTimeInfo(const std::string description)
     ANSR_LOGD("%{public}s, update countdown time trigger time", description.c_str());
     time_t now;
     (void)time(&now);  // unit is seconds.
-    whenToChangeSysTime_ = static_cast<uint64_t>(now) * MILLI_SECONDS;
+    whenToChangeSysTime_ = ReminderRequest::GetDurationSinceEpochInMilli(now);
     sptr<MiscServices::TimeServiceClient> timer = MiscServices::TimeServiceClient::GetInstance();
     int64_t bootTime = timer->GetBootTimeMs();
     SetTriggerTimeInMilli(whenToChangeSysTime_ + (countDownTimeInSeconds_ * MILLI_SECONDS -
diff --git a/frameworks/ans/native/test/unittest/reminder_request_test.cpp b/frameworks/ans/native/test/unittest/reminder_request_test.cpp
index 7788b8fc78700801aa4bf6b9473e32b3811a655d..14f13c79bfc96216cac3edd1dcb9eb97519b546d 100644
--- a/frameworks/ans/native/test/unittest/reminder_request_test.cpp
+++ b/frameworks/ans/native/test/unittest/reminder_request_test.cpp
@@ -41,7 +41,7 @@ const uint8_t ReminderRequestTest::REMINDER_STATUS_SHOWING = 4;
  * @tc.name: CanRemove_00100
  * @tc.desc: When reminder init, CanRemove should return true.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, CanRemove_00100, Function | SmallTest | Level1)
 {
@@ -53,7 +53,7 @@ HWTEST_F(ReminderRequestTest, CanRemove_00100, Function | SmallTest | Level1)
  * @tc.name: CanRemove_00200
  * @tc.desc: When reminder is shown, CanRemove should return false.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, CanRemove_00200, Function | SmallTest | Level1)
 {
@@ -66,7 +66,7 @@ HWTEST_F(ReminderRequestTest, CanRemove_00200, Function | SmallTest | Level1)
  * @tc.name: CanRemove_00300
  * @tc.desc: When reminder close, CanRemove should return true.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, CanRemove_00300, Function | SmallTest | Level1)
 {
@@ -80,7 +80,7 @@ HWTEST_F(ReminderRequestTest, CanRemove_00300, Function | SmallTest | Level1)
  * @tc.name: CanRemove_00400
  * @tc.desc: When reminder is covered as same notification id, CanRemove should return true.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF AR000GH8E6
+ * @tc.require: SR000GGTRD AR000GH8EF AR000GH8E6
  */
 HWTEST_F(ReminderRequestTest, CanRemove_00400, Function | SmallTest | Level1)
 {
@@ -95,7 +95,7 @@ HWTEST_F(ReminderRequestTest, CanRemove_00400, Function | SmallTest | Level1)
  * @tc.name: StateCheck_00100
  * @tc.desc: When reminder init, state should be 0.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, StateCheck_00100, Function | SmallTest | Level1)
 {
@@ -107,7 +107,7 @@ HWTEST_F(ReminderRequestTest, StateCheck_00100, Function | SmallTest | Level1)
  * @tc.name: StateCheck_00200
  * @tc.desc: When reminder close with param true, state REMINDER_STATUS_SHOWING should be unset.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, StateCheck_00200, Function | SmallTest | Level1)
 {
@@ -120,7 +120,7 @@ HWTEST_F(ReminderRequestTest, StateCheck_00200, Function | SmallTest | Level1)
  * @tc.name: StateCheck_00300
  * @tc.desc: When reminder close with param false, state REMINDER_STATUS_SHOWING should be unset.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, StateCheck_00300, Function | SmallTest | Level1)
 {
@@ -133,7 +133,7 @@ HWTEST_F(ReminderRequestTest, StateCheck_00300, Function | SmallTest | Level1)
  * @tc.name: StateCheck_00400
  * @tc.desc: When reminder is covered as same notification id, state REMINDER_STATUS_SHOWING should be unset.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF AR000GH8E6
+ * @tc.require: SR000GGTRD AR000GH8EF AR000GH8E6
  */
 HWTEST_F(ReminderRequestTest, StateCheck_00400, Function | SmallTest | Level1)
 {
@@ -146,7 +146,7 @@ HWTEST_F(ReminderRequestTest, StateCheck_00400, Function | SmallTest | Level1)
  * @tc.name: StateCheck_00500
  * @tc.desc: When reminder is shown with param true,true, state REMINDER_STATUS_SHOWING should be set.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, StateCheck_00500, Function | SmallTest | Level1)
 {
@@ -159,7 +159,7 @@ HWTEST_F(ReminderRequestTest, StateCheck_00500, Function | SmallTest | Level1)
  * @tc.name: StateCheck_00600
  * @tc.desc: When reminder is shown with param false,true, state REMINDER_STATUS_SHOWING should be set.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, StateCheck_00600, Function | SmallTest | Level1)
 {
@@ -172,7 +172,7 @@ HWTEST_F(ReminderRequestTest, StateCheck_00600, Function | SmallTest | Level1)
  * @tc.name: StateCheck_00700
  * @tc.desc: When reminder is shown with param true,false, state REMINDER_STATUS_SHOWING should not change.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, StateCheck_00700, Function | SmallTest | Level1)
 {
@@ -186,7 +186,7 @@ HWTEST_F(ReminderRequestTest, StateCheck_00700, Function | SmallTest | Level1)
  * @tc.name: StateCheck_00800
  * @tc.desc: When reminder is shown with param false,false, state REMINDER_STATUS_SHOWING should be unset.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, StateCheck_00800, Function | SmallTest | Level1)
 {
@@ -200,7 +200,7 @@ HWTEST_F(ReminderRequestTest, StateCheck_00800, Function | SmallTest | Level1)
  * @tc.name: initReminderId_00100
  * @tc.desc: When reminder create successfully, system should assign unique id to reminder.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF AR000GH8E6
+ * @tc.require: SR000GGTRD AR000GH8EF AR000GH8E6
  */
 HWTEST_F(ReminderRequestTest, initReminderId_00100, Function | SmallTest | Level1)
 {
@@ -216,7 +216,7 @@ HWTEST_F(ReminderRequestTest, initReminderId_00100, Function | SmallTest | Level
  * @tc.name: setContent_00100
  * @tc.desc: Test SetContent with normal parameters.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, setContent_00100, Function | SmallTest | Level1)
 {
@@ -230,7 +230,7 @@ HWTEST_F(ReminderRequestTest, setContent_00100, Function | SmallTest | Level1)
  * @tc.name: setContent_00200
  * @tc.desc: Test SetContent parameters with special characters.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, setContent_00200, Function | SmallTest | Level1)
 {
@@ -244,7 +244,7 @@ HWTEST_F(ReminderRequestTest, setContent_00200, Function | SmallTest | Level1)
  * @tc.name: setExpiredContent_00100
  * @tc.desc: Test SetExpiredContent with normal parameters.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF AR000GNF1U
+ * @tc.require: SR000GGTRD AR000GH8EF AR000GNF1U AR000GNF1U
  */
 HWTEST_F(ReminderRequestTest, setExpiredContent_00100, Function | SmallTest | Level1)
 {
@@ -258,7 +258,7 @@ HWTEST_F(ReminderRequestTest, setExpiredContent_00100, Function | SmallTest | Le
  * @tc.name: setExpiredContent_00200
  * @tc.desc: Test SetExpiredContent with special characters.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF AR000GNF1U
+ * @tc.require: SR000GGTRD AR000GH8EF AR000GNF1U AR000GNF1U
  */
 HWTEST_F(ReminderRequestTest, setExpiredContent_00200, Function | SmallTest | Level1)
 {
@@ -272,7 +272,7 @@ HWTEST_F(ReminderRequestTest, setExpiredContent_00200, Function | SmallTest | Le
  * @tc.name: setTitle_00100
  * @tc.desc: Test SetTitle with normal parameters.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, setTitle_00100, Function | SmallTest | Level1)
 {
@@ -286,7 +286,7 @@ HWTEST_F(ReminderRequestTest, setTitle_00100, Function | SmallTest | Level1)
  * @tc.name: setTitle_00200
  * @tc.desc: Test SetTitle with special characters.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, setTitle_00200, Function | SmallTest | Level1)
 {
@@ -300,7 +300,7 @@ HWTEST_F(ReminderRequestTest, setTitle_00200, Function | SmallTest | Level1)
  * @tc.name: setNotificationId_00100
  * @tc.desc: Test SetNotificationId parameters.
  * @tc.type: FUNC
- * @tc.require: SR000GGGTRD AR000GH8EF
+ * @tc.require: SR000GGTRD AR000GH8EF
  */
 HWTEST_F(ReminderRequestTest, setNotificationId_00100, Function | SmallTest | Level1)
 {
@@ -314,7 +314,7 @@ HWTEST_F(ReminderRequestTest, setNotificationId_00100, Function | SmallTest | Le
  * @tc.name: setSnoozeTimes_00100
  * @tc.desc: Test SetSnoozeTimes parameters.
  * @tc.type: FUNC
- * @tc.require: AR000GNF1T
+ * @tc.require: AR000GNF1T AR000GH8E7
  */
 HWTEST_F(ReminderRequestTest, setSnoozeTimes_00100, Function | SmallTest | Level1)
 {
diff --git a/frameworks/ans/test/moduletest/ReminderHelperTest.js b/frameworks/ans/test/moduletest/ReminderHelperTest.js
index 1b29bd76e39df871077f7fcc0d7f35d75b809817..8f759bb5aeaa397729cee4bc6144c64c3aa3802d 100644
--- a/frameworks/ans/test/moduletest/ReminderHelperTest.js
+++ b/frameworks/ans/test/moduletest/ReminderHelperTest.js
@@ -52,7 +52,7 @@ describe("ReminderHelperTest", function () {
      * @tc.name: testReminderHelper001
      * @tc.desc: test publishReminder can return correct reminder id.
      * @tc.type: FUNC
-     * @tc.require: SR000GGTRB AR000GH8E9 AR00GH8EH
+     * @tc.require: SR000GGTRB AR000GH8EH AR000GH8E9 AR00GH8EH
      */
     it("testReminderHelper001", 0, async function (done) {
         let timer = {
@@ -82,7 +82,7 @@ describe("ReminderHelperTest", function () {
      * @tc.name: testReminderHelper002
      * @tc.desc: test publishReminder can return correct reminder id.
      * @tc.type: FUNC
-     * @tc.require: SR000GGTRB AR000GH8E9 AR00GH8EH
+     * @tc.require: SR000GGTRB AR000GH8EH AR000GH8E9 AR00GH8EH
      */
     it("testReminderHelper002", 0, async function (done) {
         let timer = {
@@ -205,7 +205,7 @@ describe("ReminderHelperTest", function () {
      * @tc.name: testReminderHelper008
      * @tc.desc: test cancelAllReminders can cancel all exist reminders
      * @tc.type: FUNC
-     * @tc.require: SR000GGTRB AR000GH8EA
+     * @tc.require: SR000GGTRB AR000GH8EA AR000GH8EF AR000GH8EI
      */
     it("testReminderHelper008", 0, async function (done) {
         let timer = {
@@ -373,7 +373,7 @@ describe("ReminderHelperTest", function () {
      * @tc.name: testReminderHelper013
      * @tc.desc: test getValidReminders, verify all the information is correct.
      * @tc.type: FUNC
-     * @tc.require: SR000GGTRB AR000GH8EB
+     * @tc.require: SR000GGTRB AR000GH8EB AR000GH8EF
      */
     it("testReminderHelper013", 0, async function (done) {
         var alarm = {
@@ -567,7 +567,7 @@ describe("ReminderHelperTest", function () {
      * @tc.name: testReminderHelper022
      * @tc.desc: test publishReminder a normal alarm.
      * @tc.type: FUNC
-     * @tc.require: SR000GGTRB AR000GH8E9 AR00GH8EH
+     * @tc.require: SR000GGTRB AR000GH8E9 AR00GH8EH AR000GH8EE
      */
     it("testReminderHelper022", 0, async function (done) {
         let alarm = {
@@ -855,7 +855,7 @@ describe("ReminderHelperTest", function () {
      * @tc.name: testReminderHelper027
      * @tc.desc: test publishReminder (max number limit of each application)
      * @tc.type: FUNC
-     * @tc.require: SR000GGTRB AR000GH8E9 AR00GH8EH
+     * @tc.require: SR000GGTRE AR000GH8E9 AR00GH8EH
      */
     it("testReminderHelper027", 0, async function (done) {
         let timer = {
diff --git a/interfaces/innerkits/ans/native/include/reminder_request.h b/interfaces/innerkits/ans/native/include/reminder_request.h
index 8e320cda6eb4b3e877d199d79e0dd13b8575654b..14fb032d6ff2f0af0445dfee2cc70254c92418b0 100644
--- a/interfaces/innerkits/ans/native/include/reminder_request.h
+++ b/interfaces/innerkits/ans/native/include/reminder_request.h
@@ -560,6 +560,7 @@ public:
     static const std::string PARAM_REMINDER_ID;
     static int GetActualTime(const TimeTransferType &type, int cTime);
     static int GetCTime(const TimeTransferType &type, int actualTime);
+    static uint64_t GetDurationSinceEpochInMilli(const time_t target);
     static int32_t GetUid(const int &userId, const std::string &bundleName);
     static int GetUserId(const int &uid);
 
@@ -583,7 +584,7 @@ private:
     std::string GetState(const uint8_t state) const;
     bool HandleSysTimeChange(uint64_t oriTriggerTime, uint64_t optTriggerTime);
     bool HandleTimeZoneChange(uint64_t oldZoneTriggerTime, uint64_t newZoneTriggerTime, uint64_t optTriggerTime);
-    void InitNotificationRequest();
+    bool InitNotificationRequest();
     void SetMaxScreenWantAgent(AppExecFwk::ElementName &element);
     void SetState(bool deSet, const uint8_t newState, std::string function);
     void SetWantAgent(AppExecFwk::ElementName &element);
diff --git a/interfaces/kits/napi/ans/src/reminder/reminder_common.cpp b/interfaces/kits/napi/ans/src/reminder/reminder_common.cpp
index 8c7d091ba166e7ef7d2abc6e7a4ef8b431b7bdd2..83ba3aba1535b91a2254f5b4fe2d09696e2fbf89 100644
--- a/interfaces/kits/napi/ans/src/reminder/reminder_common.cpp
+++ b/interfaces/kits/napi/ans/src/reminder/reminder_common.cpp
@@ -446,6 +446,7 @@ napi_value ReminderCommon::CreateReminderCalendar(
     dateTime.tm_hour = propertyHourVal;
     dateTime.tm_min = propertyMinteVal;
     dateTime.tm_sec = 0;
+    dateTime.tm_isdst = -1;
     reminder = std::make_shared<ReminderRequestCalendar>(dateTime, repeatMonths, repeatDays);
     return NotificationNapi::Common::NapiGetNull(env);
 }
diff --git a/services/ans/include/reminder_data_manager.h b/services/ans/include/reminder_data_manager.h
index 889058add1aa198dd02ee0ff0efa6561461d9495..b1d22285a35a000f2fea65ea06991d547efeb1d0 100644
--- a/services/ans/include/reminder_data_manager.h
+++ b/services/ans/include/reminder_data_manager.h
@@ -391,6 +391,7 @@ private:
     static std::mutex MUTEX;
     static std::mutex SHOW_MUTEX;
     static std::mutex ALERT_MUTEX;
+    static std::mutex TIMER_MUTEX;
 
     /**
      * Max number of reminders limit for the whole system.
diff --git a/services/ans/src/reminder_data_manager.cpp b/services/ans/src/reminder_data_manager.cpp
index 1fb4bd01d505e29e3876fbf02ee733622fc203e6..52adfccde3323e4a36e343f52e2db06b76e26392 100644
--- a/services/ans/src/reminder_data_manager.cpp
+++ b/services/ans/src/reminder_data_manager.cpp
@@ -33,6 +33,7 @@ std::shared_ptr<ReminderDataManager> ReminderDataManager::REMINDER_DATA_MANAGER
 std::mutex ReminderDataManager::MUTEX;
 std::mutex ReminderDataManager::SHOW_MUTEX;
 std::mutex ReminderDataManager::ALERT_MUTEX;
+std::mutex ReminderDataManager::TIMER_MUTEX;
 
 void ReminderDataManager::PublishReminder(sptr<ReminderRequest> &reminder,
     sptr<NotificationBundleOption> &bundleOption)
@@ -322,6 +323,7 @@ void ReminderDataManager::CloseReminder(const OHOS::EventFwk::Want &want, bool c
         return;
     }
     CloseReminder(reminder, cancelNotification);
+    StartRecentReminder();
 }
 
 void ReminderDataManager::CloseReminder(const sptr<ReminderRequest> &reminder, bool cancelNotification)
@@ -341,7 +343,6 @@ void ReminderDataManager::CloseReminder(const sptr<ReminderRequest> &reminder, b
     if (cancelNotification) {
         CancelNotification(reminder);
     }
-    StartRecentReminder();
 }
 
 std::shared_ptr<ReminderDataManager> ReminderDataManager::GetInstance()
@@ -703,7 +704,7 @@ sptr<ReminderRequest> ReminderDataManager::GetRecentReminderLocked()
             time_t now;
             (void)time(&now);  // unit is seconds.
             if (now < 0
-                || static_cast<uint64_t>(now) * ReminderRequest::MILLI_SECONDS > (*it)->GetTriggerTimeInMilli()) {
+                || ReminderRequest::GetDurationSinceEpochInMilli(now) > (*it)->GetTriggerTimeInMilli()) {
                 ANSR_LOGE("Get recent reminder while the trigger time is overdue.");
                 it++;
                 continue;
@@ -950,7 +951,7 @@ void ReminderDataManager::RemoveReminderLocked(const int32_t &reminderId)
 
 void ReminderDataManager::StartTimerLocked(const sptr<ReminderRequest> &reminderRequest, TimerType type)
 {
-    std::lock_guard<std::mutex> lock(ReminderDataManager::MUTEX);
+    std::lock_guard<std::mutex> lock(ReminderDataManager::TIMER_MUTEX);
     StartTimer(reminderRequest, type);
 }
 
@@ -982,7 +983,7 @@ void ReminderDataManager::StartTimer(const sptr<ReminderRequest> &reminderReques
                 ANSR_LOGE("Alerting time out timer has already started.");
                 break;
             }
-            triggerTime = static_cast<uint64_t>(now) * ReminderRequest::MILLI_SECONDS
+            triggerTime = ReminderRequest::GetDurationSinceEpochInMilli(now)
                 + static_cast<uint64_t>(reminderRequest->GetRingDuration() * ReminderRequest::MILLI_SECONDS);
             timerIdAlerting_ = timer->CreateTimer(REMINDER_DATA_MANAGER->CreateTimerInfo(type));
             timer->StartTimer(timerIdAlerting_, triggerTime);
@@ -999,14 +1000,14 @@ void ReminderDataManager::StartTimer(const sptr<ReminderRequest> &reminderReques
         ANSR_LOGW("Start timer fail");
     } else {
         ANSR_LOGD("Timing info: now:(%{public}llu), tar:(%{public}llu)",
-            (unsigned long long)(static_cast<uint64_t>(now) * ReminderRequest::MILLI_SECONDS),
+            (unsigned long long)(ReminderRequest::GetDurationSinceEpochInMilli(now)),
             (unsigned long long)(triggerTime));
     }
 }
 
 void ReminderDataManager::StopTimerLocked(TimerType type)
 {
-    std::lock_guard<std::mutex> lock(ReminderDataManager::MUTEX);
+    std::lock_guard<std::mutex> lock(ReminderDataManager::TIMER_MUTEX);
     StopTimer(type);
 }
 
diff --git a/services/ans/src/reminder_event_manager.cpp b/services/ans/src/reminder_event_manager.cpp
index f4f75ad54477296cbb38a21b0301079da73f71d2..b864de2080181f15a6a93af6ba57338f2544bf87 100644
--- a/services/ans/src/reminder_event_manager.cpp
+++ b/services/ans/src/reminder_event_manager.cpp
@@ -15,10 +15,11 @@
 
 #include "ans_log_wrapper.h"
 #include "appmgr/app_mgr_constants.h"
+#include "bundle_constants.h"
 #include "bundle_mgr_interface.h"
 #include "common_event_manager.h"
 #include "common_event_support.h"
-#include "bundle_constants.h"
+#include "ipc_skeleton.h"
 
 #include "reminder_event_manager.h"
 
@@ -44,11 +45,14 @@ void ReminderEventManager::init(std::shared_ptr<ReminderDataManager> &reminderDa
     matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_TIME_CHANGED);
     CommonEventSubscribeInfo subscriberInfo(matchingSkills);
     auto subscriber = std::make_shared<ReminderEventSubscriber>(subscriberInfo, reminderDataManager);
+
+    std::string identity = IPCSkeleton::ResetCallingIdentity();
     if (CommonEventManager::SubscribeCommonEvent(subscriber)) {
         ANSR_LOGD("SubscribeCommonEvent ok");
     } else {
         ANSR_LOGD("SubscribeCommonEvent fail");
     }
+    IPCSkeleton::SetCallingIdentity(identity);
 }
 
 ReminderEventManager::ReminderEventSubscriber::ReminderEventSubscriber(