diff --git a/calendar-client/src/dbus/dbustimedate.cpp b/calendar-common/src/dbustimedate.cpp
similarity index 92%
rename from calendar-client/src/dbus/dbustimedate.cpp
rename to calendar-common/src/dbustimedate.cpp
index 718da1c1..73ad18ba 100644
--- a/calendar-client/src/dbus/dbustimedate.cpp
+++ b/calendar-common/src/dbustimedate.cpp
@@ -42,6 +42,15 @@ int DBusTimedate::shortDateFormat()
     return m_hasDateTimeFormat ? getPropertyByName("ShortDateFormat").toInt() : 1;
 }
 
+Qt::DayOfWeek DBusTimedate::weekBegins()
+{
+    if (m_hasDateTimeFormat) {
+        // WeekBegins是从0开始的，加1才能对应DayOfWeek
+        return Qt::DayOfWeek(getPropertyByName("WeekBegins").toInt() + 1);
+    }
+    return Qt::Monday;
+}
+
 void DBusTimedate::propertiesChanged(const QDBusMessage &msg)
 {
     QList<QVariant> arguments = msg.arguments();
diff --git a/calendar-client/src/dbus/dbustimedate.h b/calendar-common/src/dbustimedate.h
similarity index 86%
rename from calendar-client/src/dbus/dbustimedate.h
rename to calendar-common/src/dbustimedate.h
index 1f674ffe..48717bae 100644
--- a/calendar-client/src/dbus/dbustimedate.h
+++ b/calendar-common/src/dbustimedate.h
@@ -13,13 +13,16 @@ class DBusTimedate : public QDBusAbstractInterface
     Q_OBJECT
     Q_PROPERTY(int ShortTimeFormat READ shortTimeFormat NOTIFY ShortTimeFormatChanged)
     Q_PROPERTY(int ShortDateFormat READ shortDateFormat NOTIFY ShortDateFormatChanged)
+    Q_PROPERTY(int WeekBegins READ weekBegins NOTIFY WeekBeginsChanged)
 public:
     explicit DBusTimedate(QObject *parent = nullptr);
     int shortTimeFormat();
     int shortDateFormat();
+    Qt::DayOfWeek weekBegins();
 signals:
     void ShortDateFormatChanged(int  value) const;
     void ShortTimeFormatChanged(int  value) const;
+    void WeekBeginsChanged(int value) const;
 
 public slots:
     void propertiesChanged(const QDBusMessage &msg);
diff --git a/calendar-service/src/calendarDataManager/daccountmanagemodule.cpp b/calendar-service/src/calendarDataManager/daccountmanagemodule.cpp
index b3a945cc..5c34c5d7 100644
--- a/calendar-service/src/calendarDataManager/daccountmanagemodule.cpp
+++ b/calendar-service/src/calendarDataManager/daccountmanagemodule.cpp
@@ -26,6 +26,15 @@ DAccountManageModule::DAccountManageModule(QObject *parent)
                 &DTK_CORE_NAMESPACE::DConfig::valueChanged,
                 this,
                 &DAccountManageModule::slotSettingChange);
+    } else {
+        connect(&m_timeDateDbus,
+                &DBusTimedate::ShortTimeFormatChanged,
+                this,
+                &DAccountManageModule::slotSettingChange);
+        connect(&m_timeDateDbus,
+                &DBusTimedate::WeekBeginsChanged,
+                this,
+                &DAccountManageModule::slotSettingChange);
     }
     m_isSupportUid = m_syncFileManage->getSyncoperation()->hasAvailable();
     if(Dtk::Core::DSysInfo::isCommunityEdition()){
@@ -335,22 +344,39 @@ DCalendarGeneralSettings::Ptr DAccountManageModule::getGeneralSettings()
 {
     auto cg = m_accountManagerDB->getCalendarGeneralSettings();
     if (getFirstDayOfWeekSource() == DCalendarGeneralSettings::Source_System) {
-        bool ok;
-        auto dayofWeek = Qt::DayOfWeek(m_reginFormatConfig->value(firstDayOfWeek_key).toInt(&ok));
-        if (ok) {
-            cg->setFirstDayOfWeek(dayofWeek);
+        // deepin23使用dconfig存储系统配置
+        if (m_reginFormatConfig->isValid()) {
+            bool ok;
+            auto dayofWeek =
+                Qt::DayOfWeek(m_reginFormatConfig->value(firstDayOfWeek_key).toInt(&ok));
+            if (ok) {
+                cg->setFirstDayOfWeek(dayofWeek);
+            } else {
+                qWarning() << "Unable to get first day of week from control center config file";
+            }
         } else {
-            qWarning() << "Unable to get first day of week from control center config file";
+            // 在deepin20.9使用dbus获取系统配置
+            cg->setFirstDayOfWeek(m_timeDateDbus.weekBegins());
         }
     }
     if (getTimeFormatTypeSource() == DCalendarGeneralSettings::Source_System) {
-        auto shortTimeFormat = m_reginFormatConfig->value(shortTimeFormat_key).toString();
-        if (shortTimeFormat.isEmpty()) {
-            qWarning() << "Unable to short time format from control center config file";
-        } else if (shortTimeFormat.contains("ap")) {
-            cg->setTimeShowType(DCalendarGeneralSettings::Twelve);
+        // 在deepin23使用dconfig获取系统配置
+        if (m_reginFormatConfig->isValid()) {
+            auto shortTimeFormat = m_reginFormatConfig->value(shortTimeFormat_key).toString();
+            if (shortTimeFormat.isEmpty()) {
+                qWarning() << "Unable to short time format from control center config file";
+            } else if (shortTimeFormat.contains("ap")) {
+                cg->setTimeShowType(DCalendarGeneralSettings::Twelve);
+            } else {
+                cg->setTimeShowType(DCalendarGeneralSettings::TwentyFour);
+            }
         } else {
-            cg->setTimeShowType(DCalendarGeneralSettings::TwentyFour);
+            // 在deepin20.9使用dbus获取系统配置
+            if (m_timeDateDbus.shortTimeFormat() == 0) {
+                cg->setTimeShowType(DCalendarGeneralSettings::Twelve);
+            } else {
+                cg->setTimeShowType(DCalendarGeneralSettings::TwentyFour);
+            }
         }
     }
     return cg;
diff --git a/calendar-service/src/calendarDataManager/daccountmanagemodule.h b/calendar-service/src/calendarDataManager/daccountmanagemodule.h
index fb74d8f3..a6cdd605 100644
--- a/calendar-service/src/calendarDataManager/daccountmanagemodule.h
+++ b/calendar-service/src/calendarDataManager/daccountmanagemodule.h
@@ -11,6 +11,7 @@
 #include "daccountmodule.h"
 #include "daccountmanagerdatabase.h"
 #include "daccountservice.h"
+#include "dbustimedate.h"
 
 #include <QObject>
 #include <QSharedPointer>
@@ -120,6 +121,7 @@ public slots:
     QTimer m_timer;
     bool m_isSupportUid = false;
     QSettings m_settings;
+    DBusTimedate m_timeDateDbus;
 };
 
 #endif // DACCOUNTMANAGEMODULE_H