diff --git a/dm/config/task_converters.go b/dm/config/task_converters.go
index 7c3bf04f15..dbbfb20355 100644
--- a/dm/config/task_converters.go
+++ b/dm/config/task_converters.go
@@ -161,6 +161,9 @@ func OpenAPITaskToSubTaskConfigs(task *openapi.Task, toDBCfg *dbconfig.DBConfig,
 		// set task name and mode
 		subTaskCfg.Name = task.Name
 		subTaskCfg.Mode = string(task.TaskMode)
+		if task.Timezone != nil {
+			subTaskCfg.Timezone = *task.Timezone
+		}
 		// set task meta
 		subTaskCfg.MetaSchema = *task.MetaSchema
 		// add binlog meta
@@ -201,7 +204,7 @@ func OpenAPITaskToSubTaskConfigs(task *openapi.Task, toDBCfg *dbconfig.DBConfig,
 		subTaskCfg.CaseSensitive = sourceCfgMap[sourceCfg.SourceName].CaseSensitive
 		// set source db config
 		subTaskCfg.SourceID = sourceCfg.SourceName
-		subTaskCfg.From = sourceCfgMap[sourceCfg.SourceName].From
+		subTaskCfg.From = *sourceCfgMap[sourceCfg.SourceName].From.Clone()
 		// set target db config
 		subTaskCfg.To = *toDBCfg.Clone()
 		// TODO ExprFilter
@@ -683,6 +686,10 @@ func SubTaskConfigsToOpenAPITask(subTaskConfigList []*SubTaskConfig) *openapi.Ta
 			Password: oneSubtaskConfig.To.Password,
 		},
 	}
+	if oneSubtaskConfig.Timezone != "" {
+		timezone := oneSubtaskConfig.Timezone
+		task.Timezone = &timezone
+	}
 	if oneSubtaskConfig.ShardMode != "" {
 		taskShardMode := openapi.TaskShardMode(oneSubtaskConfig.ShardMode)
 		task.ShardMode = &taskShardMode
diff --git a/dm/config/task_converters_test.go b/dm/config/task_converters_test.go
index 98f06ae943..a97e251fd4 100644
--- a/dm/config/task_converters_test.go
+++ b/dm/config/task_converters_test.go
@@ -60,12 +60,14 @@ func testNoShardTaskToSubTaskConfigs(c *check.C) {
 	c.Assert(err, check.IsNil)
 	source1Name := task.SourceConfig.SourceConf[0].SourceName
 	sourceCfg1.SourceID = task.SourceConfig.SourceConf[0].SourceName
+	sourceCfg1.From.Session = map[string]string{"time_zone": "UTC"}
 	sourceCfgMap := map[string]*SourceConfig{source1Name: sourceCfg1}
 	toDBCfg := &dbconfig.DBConfig{
 		Host:     task.TargetConfig.Host,
 		Port:     task.TargetConfig.Port,
 		User:     task.TargetConfig.User,
 		Password: task.TargetConfig.Password,
+		Session:  map[string]string{"time_zone": "UTC"},
 		Security: &security.Security{
 			SSLCABytes:    []byte(task.TargetConfig.Security.SslCaContent),
 			SSLCertBytes:  []byte(task.TargetConfig.Security.SslCertContent),
@@ -82,6 +84,7 @@ func testNoShardTaskToSubTaskConfigs(c *check.C) {
 	subTaskConfig := subTaskConfigList[0]
 	// check task name and mode
 	c.Assert(subTaskConfig.Name, check.Equals, task.Name)
+	c.Assert(subTaskConfig.Timezone, check.Equals, *task.Timezone)
 	// check task meta
 	c.Assert(subTaskConfig.MetaSchema, check.Equals, *task.MetaSchema)
 	c.Assert(subTaskConfig.Meta, check.IsNil)
@@ -93,8 +96,12 @@ func testNoShardTaskToSubTaskConfigs(c *check.C) {
 	c.Assert(subTaskConfig.CaseSensitive, check.Equals, sourceCfg1.CaseSensitive)
 	// check from
 	c.Assert(subTaskConfig.From.Host, check.Equals, sourceCfg1.From.Host)
+	c.Assert(subTaskConfig.From.Session["time_zone"], check.Equals, *task.Timezone)
+	c.Assert(sourceCfg1.From.Session["time_zone"], check.Equals, "UTC")
 	// check to
 	c.Assert(subTaskConfig.To.Host, check.Equals, toDBCfg.Host)
+	c.Assert(subTaskConfig.To.Session["time_zone"], check.Equals, *task.Timezone)
+	c.Assert(toDBCfg.Session["time_zone"], check.Equals, "UTC")
 	// check dumpling loader syncer config
 	c.Assert(subTaskConfig.MydumperConfig.Threads, check.Equals, *task.SourceConfig.FullMigrateConf.ExportThreads)
 	c.Assert(subTaskConfig.LoaderConfig.Dir, check.Equals, fmt.Sprintf(
@@ -464,11 +471,34 @@ func TestConvertBetweenOpenAPITaskAndTaskConfig(t *testing.T) {
 	taskCfg, err := OpenAPITaskToTaskConfig(&task, sourceCfgMap)
 	require.NoError(t, err)
 	require.NotNil(t, taskCfg)
+	require.Equal(t, *task.Timezone, taskCfg.Timezone)
 	task1, err := TaskConfigToOpenAPITask(taskCfg, sourceCfgMap)
 	require.NoError(t, err)
 	require.NotNil(t, task1)
 	require.EqualValues(t, task1, &task)
 
+	configuredTimezone := task.Timezone
+	emptyTimezone := ""
+	for _, tc := range []struct {
+		name     string
+		timezone *string
+	}{
+		{name: "omitted", timezone: nil},
+		{name: "empty", timezone: &emptyTimezone},
+	} {
+		t.Run(tc.name+" timezone uses downstream default", func(t *testing.T) {
+			task.Timezone = tc.timezone
+			taskCfgWithoutTimezone, convertErr := OpenAPITaskToTaskConfig(&task, sourceCfgMap)
+			require.NoError(t, convertErr)
+			require.Empty(t, taskCfgWithoutTimezone.Timezone)
+
+			taskWithoutTimezone, convertErr := TaskConfigToOpenAPITask(taskCfgWithoutTimezone, sourceCfgMap)
+			require.NoError(t, convertErr)
+			require.Nil(t, taskWithoutTimezone.Timezone)
+		})
+	}
+	task.Timezone = configuredTimezone
+
 	// test update some fields in task
 	{
 		batch := 1000
diff --git a/dm/master/openapi_controller_test.go b/dm/master/openapi_controller_test.go
index 232d66ed80..096311fe20 100644
--- a/dm/master/openapi_controller_test.go
+++ b/dm/master/openapi_controller_test.go
@@ -298,6 +298,9 @@ func (s *OpenAPIControllerSuite) TestTaskController() {
 		res, err := server.createTask(ctx, createTaskReq)
 		s.Nil(err)
 		s.EqualValues(*s.testTask, res.Task)
+		subTaskCfgs := server.scheduler.GetSubTaskCfgsByTask(s.testTask.Name)
+		s.Len(subTaskCfgs, 1)
+		s.Equal(*s.testTask.Timezone, subTaskCfgs[s.testSource.SourceName].Timezone)
 	}
 
 	// update
@@ -470,6 +473,22 @@ func (s *OpenAPIControllerSuite) TestTaskController() {
 	}
 }
 
+func (s *OpenAPIControllerSuite) TestCreateTaskRejectsInvalidTimezone() {
+	ctx, cancel := context.WithCancel(context.Background())
+	server := setupTestServer(ctx, s.T())
+	defer func() {
+		cancel()
+		server.Close()
+	}()
+
+	task := *s.testTask
+	invalidTimezone := "invalid/timezone"
+	task.Timezone = &invalidTimezone
+	res, err := server.createTask(ctx, openapi.CreateTaskRequest{Task: task})
+	s.Nil(res)
+	s.True(terror.ErrConfigInvalidTimezone.Equal(err))
+}
+
 func (s *OpenAPIControllerSuite) TestTaskStatusSourceErrorFallback() {
 	ctx, cancel := context.WithCancel(context.Background())
 	server := setupTestServer(ctx, s.T())
diff --git a/dm/master/openapi_view_test.go b/dm/master/openapi_view_test.go
index 330ec908f3..fdc4f69f4d 100644
--- a/dm/master/openapi_view_test.go
+++ b/dm/master/openapi_view_test.go
@@ -41,9 +41,11 @@ import (
 	"github.com/pingcap/tiflow/dm/pkg/log"
 	"github.com/pingcap/tiflow/dm/pkg/terror"
 	"github.com/pingcap/tiflow/dm/pkg/utils"
+	"github.com/pingcap/tiflow/dm/syncer"
 	"github.com/stretchr/testify/require"
 	"github.com/stretchr/testify/suite"
 	"github.com/tikv/pd/pkg/utils/tempurl"
+	"google.golang.org/grpc"
 )
 
 // some data for test.
@@ -549,6 +551,7 @@ func (s *OpenAPIViewSuite) TestTaskTemplatesAPI() {
 	var createTaskResp openapi.Task
 	s.NoError(result.UnmarshalBodyToObject(&createTaskResp))
 	s.Equal(createTaskResp.Name, task.Name)
+	s.EqualValues(task.Timezone, createTaskResp.Timezone)
 
 	// create again will fail
 	result = testutil.NewRequest().Post(url).WithJsonBody(task).GoWithHTTPHandler(s.T(), s1.openapiHandles)
@@ -564,6 +567,7 @@ func (s *OpenAPIViewSuite) TestTaskTemplatesAPI() {
 	s.NoError(result.UnmarshalBodyToObject(&resultTaskList))
 	s.Equal(1, resultTaskList.Total)
 	s.Equal(task.Name, resultTaskList.Data[0].Name)
+	s.EqualValues(task.Timezone, resultTaskList.Data[0].Timezone)
 
 	// get detail
 	oneURL := fmt.Sprintf("%s/%s", url, task.Name)
@@ -572,6 +576,7 @@ func (s *OpenAPIViewSuite) TestTaskTemplatesAPI() {
 	var respTask openapi.Task
 	s.NoError(result.UnmarshalBodyToObject(&respTask))
 	s.Equal(task.Name, respTask.Name)
+	s.EqualValues(task.Timezone, respTask.Timezone)
 
 	// get not exist
 	notExistURL := fmt.Sprintf("%s/%s", url, "notexist")
@@ -1000,9 +1005,11 @@ func (s *OpenAPIViewSuite) TestTaskAPI() {
 	var createTaskResp openapi.OperateTaskResponse
 	s.NoError(result.UnmarshalBodyToObject(&createTaskResp))
 	s.Equal(createTaskResp.Task.Name, task.Name)
+	s.EqualValues(task.Timezone, createTaskResp.Task.Timezone)
 	subTaskM := s1.scheduler.GetSubTaskCfgsByTask(task.Name)
 	s.Len(subTaskM, 1)
 	s.Equal(task.Name, subTaskM[source1Name].Name)
+	s.Equal(*task.Timezone, subTaskM[source1Name].Timezone)
 
 	// get task
 	task1URL := fmt.Sprintf("%s/%s", taskURL, task.Name)
@@ -1011,6 +1018,44 @@ func (s *OpenAPIViewSuite) TestTaskAPI() {
 	s.Equal(http.StatusOK, result.Code())
 	s.NoError(result.UnmarshalBodyToObject(&task1FromHTTP))
 	s.Equal(task1FromHTTP.Name, task.Name)
+	s.EqualValues(task.Timezone, task1FromHTTP.Timezone)
+
+	// changing timezone through PUT is rejected by the bottom update guard.
+	updatedTimezone := "UTC"
+	timezoneUpdateTask := task
+	timezoneUpdateTask.Timezone = &updatedTimezone
+	oldSubTaskCfg := subTaskM[source1Name]
+	syncUnit := syncer.NewSyncer(oldSubTaskCfg, nil, nil)
+	mockUpdateWorkerClient := pbmock.NewMockWorkerClient(ctrl)
+	mockUpdateWorkerClient.EXPECT().CheckSubtasksCanUpdate(gomock.Any(), gomock.Any()).DoAndReturn(
+		func(_ context.Context, req *pb.CheckSubtasksCanUpdateRequest, _ ...grpc.CallOption) (*pb.CheckSubtasksCanUpdateResponse, error) {
+			newSubTaskCfg := config.NewSubTaskConfig()
+			decodeErr := newSubTaskCfg.Decode(req.SubtaskCfgTomlString, false)
+			s.NoError(decodeErr)
+			if decodeErr != nil {
+				return &pb.CheckSubtasksCanUpdateResponse{Msg: decodeErr.Error()}, nil
+			}
+			s.Equal(updatedTimezone, newSubTaskCfg.Timezone)
+
+			guardErr := syncUnit.CheckCanUpdateCfg(newSubTaskCfg)
+			s.Error(guardErr)
+			resp := &pb.CheckSubtasksCanUpdateResponse{Success: guardErr == nil}
+			if guardErr != nil {
+				resp.Msg = guardErr.Error()
+			}
+			return resp, nil
+		},
+	)
+	s1.scheduler.SetWorkerClientForTest(workerName1, newMockRPCClient(mockUpdateWorkerClient))
+	timezoneUpdateReq := openapi.UpdateTaskRequest{Task: timezoneUpdateTask}
+	result = testutil.NewRequest().Put(task1URL).WithJsonBody(timezoneUpdateReq).GoWithHTTPHandler(s.T(), s1.openapiHandles)
+	s.Equal(http.StatusBadRequest, result.Code())
+	var timezoneUpdateErr openapi.ErrorWithMessage
+	s.NoError(result.UnmarshalBodyToObject(&timezoneUpdateErr))
+	s.Equal(int(terror.ErrSchedulerSubTaskCfgUpdate.Code()), timezoneUpdateErr.ErrorCode)
+	s.Contains(timezoneUpdateErr.ErrorMsg, "fields that should not be changed")
+	storedSubTaskCfgs := s1.scheduler.GetSubTaskCfgsByTask(task.Name)
+	s.Equal(*task.Timezone, storedSubTaskCfgs[source1Name].Timezone)
 
 	// update a task
 	s.NoError(failpoint.Enable("github.com/pingcap/tiflow/dm/master/scheduler/operateCheckSubtasksCanUpdate", `return("success")`))
@@ -1032,6 +1077,7 @@ func (s *OpenAPIViewSuite) TestTaskAPI() {
 	s.NoError(result.UnmarshalBodyToObject(&resultTaskList))
 	s.Equal(1, resultTaskList.Total)
 	s.Equal(task.Name, resultTaskList.Data[0].Name)
+	s.EqualValues(task.Timezone, resultTaskList.Data[0].Timezone)
 
 	s.testImportTaskTemplate(&task, s1)
 
diff --git a/dm/openapi/fixtures/task.go b/dm/openapi/fixtures/task.go
index 52d3b347b4..60dc51c3d0 100644
--- a/dm/openapi/fixtures/task.go
+++ b/dm/openapi/fixtures/task.go
@@ -27,6 +27,7 @@ var (
 		"meta_schema": "dm_meta",
 		"name": "test",
 		"on_duplicate": "replace",
+		"timezone": "Asia/Shanghai",
 		"source_config": {
 		  "full_migrate_conf": {
 			"data_dir": "./exported_data",
diff --git a/dm/openapi/gen.server.go b/dm/openapi/gen.server.go
index 0f8d8f8945..d5062dc85d 100644
--- a/dm/openapi/gen.server.go
+++ b/dm/openapi/gen.server.go
@@ -1258,125 +1258,126 @@ func RegisterHandlersWithOptions(router *gin.Engine, si ServerInterface, options
 
 // Base64 encoded, gzipped, json marshaled Swagger object
 var swaggerSpec = []string{
-	"H4sIAAAAAAAC/+x9W3fcNpL/V8G///sQZ/oqybKtOfNgW4rHu/LlWMpm58TZFpoEuzEiARoApXR89N33",
-	"4EISJAGSLakVdex5mMhNXAqFHwpVhULh6yCgSUoJIoIPjr4OeLBCCVR/vowRE+8ggUvEzmlKY7pcy99T",
-	"RlPEBEaq1IpyIf+LfodJGqPB0WC292w8HU/Hs8FwINap/IkLhslycDMcpJRVi7+YvtgvymEi0BKxwc3N",
-	"cMDQlwwzFA6OftWdmMq/FaXp4t8oELLV13HGBWLvoPz/Jo0wDNWvIeIBw6nAlAyO1K+Ic0AjIFYIBBlj",
-	"iAiQqEYAoSEaDF3DOnq+d+gcG4zxFWr2Q0mMCQJcQJGZ3jA33dg9CJahotUFpTGCRDYbIxgiB/2Y2y2p",
-	"MZiiPRolMEHVadPNOAZWmwtVMx9sQd1QM7llcvwQghJo80QjbS6scv/BUDQ4Gvz/SQnSiUHoxAnPm+Fg",
-	"yWAECezdzhtd3m5Cs6JoYR5jjXEsUMK72tMgtJszHIGMQfXvlNEEiRXKeG8iPxZV7IavKbu8NZ2/qMp+",
-	"Om/8U6mr/mnrbEEzEs45zViA5jmQq33qj0B+BKo4EFSvFs2zZrfJmn+JR9O2DgVcOrrSzauPxeL2daLK",
-	"unpoLkfdRP/lKFlfpdTFKOf6pOQKMYlZyC8/oS8Z0iiqzq2A/LILUrIBBSTIL+cBJRFeziMcO5imPwL5",
-	"EWAC1jCJQURZAgVYCZHyo8kkpAEfp5gsA5iOA5pM/lhNBA4XEy7gIkYT2clIt5MxKNsdyeZGURbHYyfb",
-	"ukbOU0o4+ksO3UaMGo6DUic2GIICnSkEeaGhAdbFId2IJbZ8mB91g9706Kf4nqDs4pyr02PM5cR8QjFc",
-	"W93W5GAg/5CCiAuaAgiYLA6YKT+sUWlxqRDs3fL8PUzQqSztBPxxlqRnSg9xiMxCPwmzJAUZwU2aFqn6",
-	"j4ar1tcODwZN9W2otMoYCRTOFWSr1UKaLWJU1iNZstDVEBc4gQLNBRUwnjN63bdmhAnmKxTOF2uBNq60",
-	"QUcpo0u5nykk1eW4JtsxZB+n6giz6zu42BhnfQxuFg7VzFm0u0B8QjbDMGSiE8Tq63yBSUyX86XAoRN3",
-	"TGCyBG/O3x7nSkKWcsEQTICuWtlE0Qs4i4K9vREKps9Hsxl6MVrswWA03TvYg8FsNp1O949mo2fPD14M",
-	"hgOSxbEcV00VLqesQqJHm8hJlHJS6RQ9yNQKxQKT8VT+b68/LSE2WlQEs1iCZzzRH3QXVdokGSFmKBCU",
-	"rcH1CjGkSNPzEtMlwFwKHAmwHhRsQ+qcMEbZL1is3iHOnTqUhIzaxwCSZRswUr/OA6lONeqqbyDQqlZT",
-	"EOmqCV/6aiaGqK49p2xoaNPjWklvkDCa8lsSUb9iEehCc9eyMN8AltNWiJHML3H7mhJ1c6w+Touo9rFp",
-	"Q0dOu3+EIRSwt0VSteIdhpOSaJbcbZWicqXI3tsHofF7/4MwJtKWB6F1qnukvlTStk+2VkTulXCj22yZ",
-	"fKkb3iPPC9NhyyS/w0umVGO2RILfI/GVhh9iJPeLnGxRtvkQ1J/LDfhMsCwQGUP+UWgC54EyaOb8S1w1",
-	"ll5/Onl5fgLOX746PQEXYnYBfrjA4QXARPwwmz0B7z+cg/c/n56Clz+ff5i/ff/608m7k/fnw4+f3r57",
-	"+elf4L9O/qVrPAGTH8//369G7qNwjkmIfv8NvD79+ez85NPJMfhx8gScvH/z9v3JP94SQo9fgeOTn17+",
-	"fHoOXv/z5aezk/N/ZCJ6niwOwOsPp6cvz0/yf0u1yuXuMENrWoDhwumAUdqvo7j6fdbD4i2q521ZXHVO",
-	"Vc0peO9u7/3pdHpnt/cphWG3ORdTGN7VnGuxrvyVEiSgUaydxpL1vbANmpzrNrf601Tjb8OWstuzuq4O",
-	"xUG4tq9cU1TzBt8VRz63fS/MPd87nHXyxKySLuh9UBo7anecBSsUXM4Z4sqMqSM0ZWikSgBTwraeyo+Y",
-	"gxRyjsIxcIuGuzhzhlUaO0Zal9ydRrK2axBQMsdrJEdxxlcVi08bZ9VWf2FYIK5sOz0u7dJGQI0gpZgI",
-	"wOUvUIDjdyCARK98LACMpCXBUGHHymq5G7BxNMS/xPOAEoGIY2z8SwzWNAPXkAhrhJW5c+xM4CKYlVtT",
-	"vnvI7WkILoI9/6d996c77Ed/d25IaxI0B/tzGsKc5zQVOMFc4ADwFWShZKOUA3K3B9dYrLTn30wNJfEa",
-	"ZByF0iInABrDFtAgyBgHmHjbPD4+BUnFmC2mpu4EtebJBVzHmdE2Tm/vvo19zJjLKVB6MAI5/iwFKY1x",
-	"sAYVz3fTV/B7ipnRA/P1NK0vJlVIexwE1v6cojvb3s43Eo/fxNrs5J/sSiuKRb/7h9NG1+crBPLCcgWl",
-	"iGEa4gDG8RoYkRc1XTh6WOEQmMbBFYwzdARUFxJQHAWUhPx21DOUQEzmPIUBqoxg9rRO/ztMcJIlIGII",
-	"gRDzS6BqKRrevLpN9zc+TNyrP/0B/Xxdfr1KnykKcLQ2xPNsYXnzIspAg+wxeBsBQgXQNbHEhDr7l6JK",
-	"AEoQuMZxDBZICaAxOFOUmjOmI7AH0bPDg/2DUfTsRTSazdDz0SJEe7n7VCqmz/VQZt0Ow9pKb/LYtd7V",
-	"tL5Wi7jJD7Wj6SOyfFE2l7jyVM/1x1IvtPaw737nnfI73/hQ0m3d2GK7ihITxVEaINUmajzMD2T1MtEb",
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-	"yoIs1cpUMTuWEeZb5k65uhk+y3GPJzxbqCZdaqI7BCRnokZlpblPGSGycpfkrILVCSJ7uK4Z9jE9J9sl",
-	"is+Uuloc3zTXmVZnlexRx0HD0qnW7bWpOdLOUJAxLNbNbpQSbWJ2OI+rGp7e3iKM4rDY2VY4DBHRyvUS",
-	"icKosRuqNAIiRhNVROlekdRzmmKpZr4iJuYwjuk1CucBaZL9miYJJeC9kcxnZ6dA1sERDqB2IRTM6mQO",
-	"5/E8gH7Dy2pYi6q8pI02J2Zlw3Ik3qZ/spqT4/h48s5oC5P/eTp9kUen1IbW3eslWvs7fV32J2clZfhK",
-	"Du0SrYvQGKvzjv7qllGVlw4eNAl0rg5jlL1hNEsdbuYwbobcdU50hBkX85gGepdxVZHWKAo3a1Zo77ur",
-	"aEY2b7DhLFGtD8sxNwZSkG116GRqES3kCtnz6HoVvSSCMW+4R4qdRFnhWgJIs0lVr4h4U725mxi1stwu",
-	"e/VHpZqtlUhpzWVSQCmpzLXMcW3vXhKiGF5Rx26mfy/iCwte1dQ+10rMTXxngKSJzXQHYDo9AJDza8pC",
-	"b4tFgWqT+wdPD/toormHwd22/Gi1u78/PXRZs2nuUGgNqVWFSlWlsEfaKtmmi1yo1o7WesaUl5N1esat",
-	"9o5O1VrHZsG/ncelkF/2DwI5h/yyDAEZDjLu0vXM2OTHxvgYpaJn1N/c4aE2XVaXcP6vFinUovhYAcR+",
-	"xUeXGvXTfmyW+/orNEhX/Et3EItWiLjy+0mV6JpRl+6ZY54XxHRivoTKHfDLUBrjAHpwXAsLbXrNTFS1",
-	"0bbjtR3ZjVwyccN40hxZNiFO7EizvDXClKGEXqF5gvQ5dO+dRNdTfmWlyi4gV5pQSK+JsYfyn92uexih",
-	"eUJDNBc4QfMw95E2rSOcIJB/ltuKrJn7nS25PeVOiVOyq5d8qC02LbOYUEQ6aIP80oQXygJj8JGhCDHw",
-	"6afX+/v7L0YxvkTa+8mN4x0n6A9KpA4ecSTADxd/mz4/mk4vAGVA/j2dXjwZg1O0hMHarkkzUVaGzNgG",
-	"KUMChZLthRGaFxpXuLM3nR6OprPRdO989vRoenA0fao77hd9fiZo2oqiu7NZ0k0z0RsI1xBrU0pPAU2r",
-	"aHjKe46sElLR1JuzJO0pe6yA5Q1i+XqLwZjCsCcl1lm7dQ7rQG4eZtCyaLrkpt/v0LULn6mCxoToObKz",
-	"NQnKkalAAffI5CegaLNRoY7Ohi6rgyFO4ysUzpXRQIPLueeMv1Xy53dpnKxxH177xXnOSjNOp3Qv2dHi",
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+	"EWSPnn/jPMbTj6yYxz0GvryaH/uPqN9haR9Qtfnx8dMumtSyc8kX6jjYTuCRtp7mFvMDo5kw1x1x5e76",
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+	"r0WMzgXLApGx7zz11Hhq6C+G7EN5TgG9ce5+mnb3T4gqnMctEt80OPOdQ75zyOzPcZaqxLf7zlIrG/qj",
+	"ZEV45jsrbjz5t8KIDx+itIKCdT78a6X7a47bUG22W60CdqZSncs232Dku1j3rl/5Vpt8x+Bzv8tr1rvp",
+	"Oyjsi6r5u359Y0fvyZmbO5p6NqNOmnYKL5p+k7JLL3v3RRdN/ZJLvW/DrvMdrb5vsKbZOKQJxES9bjCQ",
+	"qDYDuGXBoOtBhZAGvV9RMM8mTL5kOLgaKQk80pnPo7LwXEXGDFyWmVr2dqG6wWI1ChMLHjVtE5q80HDR",
+	"Lv/h9rfb/wkAAP//yy9UmfXEAAA=",
 }
 
 // GetSwagger returns the content of the embedded swagger specification file
diff --git a/dm/openapi/gen.types.go b/dm/openapi/gen.types.go
index 3c83d19ee6..05b251aaa5 100644
--- a/dm/openapi/gen.types.go
+++ b/dm/openapi/gen.types.go
@@ -566,6 +566,9 @@ type Task struct {
 
 	// migrate mode
 	TaskMode TaskTaskMode `json:"task_mode"`
+
+	// task time zone. If omitted or empty, use the downstream database time zone
+	Timezone *string `json:"timezone,omitempty"`
 }
 
 // Task_BinlogFilterRule defines model for Task.BinlogFilterRule.
diff --git a/dm/openapi/spec/dm.yaml b/dm/openapi/spec/dm.yaml
index 38fd7aa408..dc2ad259a4 100644
--- a/dm/openapi/spec/dm.yaml
+++ b/dm/openapi/spec/dm.yaml
@@ -1898,6 +1898,10 @@ components:
           example: "dm-meta"
           description: "downstream database for storing meta information"
           default: "dm-meta"
+        timezone:
+          type: string
+          example: "Asia/Shanghai"
+          description: "task time zone. If omitted or empty, use the downstream database time zone"
         enhance_online_schema_change:
           type: boolean
           example: true
diff --git a/dm/openapi/task.go b/dm/openapi/task.go
index dfce6ea79b..ba231334b9 100644
--- a/dm/openapi/task.go
+++ b/dm/openapi/task.go
@@ -15,6 +15,8 @@ package openapi
 
 import (
 	"encoding/json"
+
+	"github.com/pingcap/tiflow/dm/pkg/utils"
 )
 
 var defaultMetaSchema = "dm_meta"
@@ -24,6 +26,11 @@ func (t *Task) Adjust() error {
 	if t.MetaSchema == nil {
 		t.MetaSchema = &defaultMetaSchema
 	}
+	if t.Timezone != nil && *t.Timezone != "" {
+		if _, err := utils.ParseTimeZone(*t.Timezone); err != nil {
+			return err
+		}
+	}
 	return nil
 }
 
diff --git a/dm/openapi/task_test.go b/dm/openapi/task_test.go
index 5b208e10bf..60c64b7189 100644
--- a/dm/openapi/task_test.go
+++ b/dm/openapi/task_test.go
@@ -17,6 +17,7 @@ import (
 	"testing"
 
 	"github.com/pingcap/check"
+	"github.com/pingcap/tiflow/dm/pkg/terror"
 )
 
 var _ = check.Suite(&taskSuite{})
@@ -29,13 +30,24 @@ func TestTask(t *testing.T) {
 
 func (t *taskSuite) TestTaskAdjust(c *check.C) {
 	meta := "test"
+	timezone := "Asia/Shanghai"
 	// test no error
-	task1 := &Task{MetaSchema: &meta, OnDuplicate: TaskOnDuplicateError}
+	task1 := &Task{MetaSchema: &meta, OnDuplicate: TaskOnDuplicateError, Timezone: &timezone}
 	c.Assert(task1.Adjust(), check.IsNil)
 	c.Assert(*task1.MetaSchema, check.Equals, meta)
+	c.Assert(*task1.Timezone, check.Equals, timezone)
 
 	// test default meta
 	task3 := &Task{OnDuplicate: TaskOnDuplicateError}
 	c.Assert(task3.Adjust(), check.IsNil)
 	c.Assert(*task3.MetaSchema, check.Equals, defaultMetaSchema)
+
+	// an explicit empty timezone keeps the downstream database default.
+	emptyTimezone := ""
+	task4 := &Task{OnDuplicate: TaskOnDuplicateError, Timezone: &emptyTimezone}
+	c.Assert(task4.Adjust(), check.IsNil)
+
+	invalidTimezone := "invalid/timezone"
+	task5 := &Task{OnDuplicate: TaskOnDuplicateError, Timezone: &invalidTimezone}
+	c.Assert(terror.ErrConfigInvalidTimezone.Equal(task5.Adjust()), check.IsTrue)
 }
diff --git a/dm/syncer/syncer_test.go b/dm/syncer/syncer_test.go
index 1366cd9bc2..ed6e07ac49 100644
--- a/dm/syncer/syncer_test.go
+++ b/dm/syncer/syncer_test.go
@@ -2049,6 +2049,18 @@ func TestCheckCanUpdateCfg(t *testing.T) {
 	require.NoError(t, syncer.CheckCanUpdateCfg(cfg))
 }
 
+func TestCheckCanUpdateCfgRejectsTimezoneChange(t *testing.T) {
+	cfg := genDefaultSubTaskConfig4Test()
+	cfg.Timezone = "UTC"
+	syncer := NewSyncer(cfg, nil, nil)
+
+	newCfg := cloneSubTaskConfigForSyncerTest(t, cfg)
+	newCfg.Timezone = "Asia/Shanghai"
+	err := syncer.CheckCanUpdateCfg(newCfg)
+	require.Truef(t, terror.ErrWorkerUpdateSubTaskConfig.Equal(err), "err: %v", err)
+	require.ErrorContains(t, err, "fields that should not be changed")
+}
+
 func TestCheckCanUpdateCfgRejectsForeignKeyChecksDMLBoundaryOptions(t *testing.T) {
 	cfg := genDefaultSubTaskConfig4Test()
 	syncer := NewSyncer(cfg, nil, nil)